limits of sorting

Article: Hot Chips XXI Preview
By: JasonB (no.delete@this.spam.com), August 21, 2009 2:08 am
Room: Moderated Discussions
Richard Cownie (tich@pobox.com) on 8/21/09 wrote:
---------------------------
>JasonB (no@spam.com) on 8/20/09 wrote:
>---------------------------
>
>>One of the things I like about C++ is that there is no reason for the standard
>>stuff to cater for the lowest common denominator.
>
>In my case, I know most of the keys have long common
>prefixes. The algorithm can exploit that to go faster:
>but obviously a standard library routine can't know
>that and take advantage of it. That's what I mean -
>merely being able to redefine the comparison operator
>doesn't get you far.

As I keep repeating, my observation was not related to where you ended up but rather the path you took to get there. I have no problem with you eventually deciding to use a different algorithm after exhausting the options I outlined; my observations related to a reluctance to even try standard library routines before reinventing the wheel, particularly when those standard library routines have well documented behaviour, unlike the undocumented behaviour of the memory allocator that you did come to rely on and that cost you a "nasty few weeks" to track down as the cause of the weird behaviour you were seeing.

>>I don't see how they can be any more likely (and I would posit less likely,
>>given the stricter testing regime that standard library code has to pass) than code you have written yourself.
>
>It's more likely to happen in homebrew code. But when
>it does happen, it's a lot easier to debug and fix in
>your own code than in third-party code.

Sure, that's a valid point, especially when the third-party code (or second party, in this case) is using templates. And while the sort() routine itself is pretty damn robust, it will be potentially relying on your own key comparison and element swapping code, which can also be buggy -- although since the required behaviour is so simple it shouldn't be too hard to get them right. (If you need to write your own iterators as well then it gets hairier.)

>And I've been skeptical of the "stricter testing regime"
>ever since I picked up a new release of gdb back around
>2002 and found that all the C++ support was fatally
>broken ... QA is terrific for some open-source projects,
>utterly lousy for others.

Heh -- we use very little open-source code in our software. We use some libraries from Boost, but I still rank that as "well tested" and even then we only use the "safer" parts of it.

>>For example, in the past ten years it's entirely possible that nothing much has
>>changed when profiling your code, yet portions of that code could be much
>>slower than they otherwise would be if they were threaded. Similarly, when first
>>written it may have been using x87 code and may now profit greatly from using SSE[n],
>>but because the profiling results haven't changed there's nothing to indicate that you should investigate.
>
>Investigate how ? If you read 500 lines an hour, then
>merely reading a 1M-line codebase would take 2000 hours,
>or 50 weeks of 40 hours. It can't be done.

Hmm... Our codebase is about half the size of yours, and if you were to ask me where to start looking for stuff that could be profitably threaded it wouldn't take me long. Heck, I did exactly that as soon as I got a dual-core and I certainly didn't do it by reading through the source code at 500 lines an hour.

>It's another game altogether if your codebase is around
>50Klines.

Or 500K?

Of course, I'm one of only three developers so I may have far more intimate knowledge of the code than someone in a much larger team, especially since performance tuning has largely been up to me for the past decade.

>>In my case, the float-to-int conversion routines that we wrote ten years ago to
>>address VC6's braindead casting implementation are now slower than VC2k8's casting
>>implementation, and taking them out has a measurable impact on overall performance
>>even though they've never shown up in profiling as suddenly being a problem.
>
>Well, there's something lacking in your profiling tools
>if they don't *show* those routines taking significant
>time, and yet removing them makes a significant difference.

I said "measurable", not "significant". It's faster with the simpler code so I'm taking it out.

Furthermore, the conversion routines are a few assembler instructions that get inlined in thousands of places. It's been a while since I checked but I didn't think the profiler could pick those up once the code had been optimised.

>The issue is that you go 64bit because your data structures
>are too big for 4GB. But going 64bit makes all your
>Foo* pointers occupy 8 bytes (with 8byte alignment)
>instead of 4bytes (with 4byte alignment). If roughly
>half your data is pointers, then that means instead of
>needing 4GB you now need about 6GB. Yeuch!
>
>So you look for ways to compress the pointers into less
>than 8 bytes, based on knowledge about the actual
>virtual address regions used for allocation,

Which gets back to my original observation -- it's odd that you are so against using a standard routine rather than rolling-your-own when it comes to sorting, but you would rather rely on the unspecified behaviour of the standard memory allocation routine than roll-your-own.

>>Firstly, unless you are not bothering to check the return value because you "know"
>>it will always succeed, then you are not relying on anything other than the guarantees
>>in the standard, which, by definition, you are allowed to rely on. If you
>>rely only on the guarantees I listed above, then you can use your very uncooperative
>>malloc() (which I don't agree is consistent with the standard's specification for
>>malloc()'s behaviour but it doesn't matter), or a malloc() that randomly returns
>>NULL for no good reason, or a malloc() that behaves in the way described by the
>>standard, and the code will still be perfectly valid and conformant.
>
>Sure, so you can write a program which checks the return
>value and thus write a orogram which is conformant ...
>but useless! Because it craps out with an error message
>as soon as it tries to allocate anything. Did that help ?

What, precisely, do you think the alternative is?

This is not a choice between a conformant program that doesn't perform the operation when the resource cannot be obtained and a non-conformant program that ignores the fact that the resource cannot be obtained and magically manages to complete the task anyway. It's a choice between a conformant program that detects the problem, tries to work around it if possible, perhaps giving the user the option to do something about the problem (e.g. clearing up some disk space, shutting down other programs, etc.) or at the least giving the user the option of saving their work, and a non-conformant program that has a segmentation fault and dumps core.

>>Secondly, there are platforms for which you can't rely on the above guarantees
>>(e.g. Linux and apparently MacOS X), because they return a non-NULL value for malloc()
>>even when there isn't sufficient memory available and therefore can run out of memory
>
>Sure they do, but so what ? If someone knocks the plug
>out of the wall your process is going to get killed as
>well, whether it's Windows or Linux.
>
>I don't care what's "conformant". I care about what's
>useful.

What are you suggesting? That you can write a program that can survive having the plug knocked out of the wall, or that because no program could survive that there's no point writing code that can handle all of the myriad other problems that could occur that could be handled properly?

I certainly care about what's useful. It isn't a choice between writing "Code that handles errors gracefully" and "Code that is useful".

>>The point is that it doesn't matter if and when malloc() returns NULL if
>>you are checking for it, as you must.
>
>Of course it matters! For most programs, if they can't
>allocate memory dynamically then they can't do anything
>useful.

You said that anybody who tries to use malloc() at all is "relying on undefined behavior". "Undefined behaviour" in this context, first raised by Michael, has a very specific meaning, defined in the C and C++ standards.

If you do not make assumptions about malloc() other than:

1. It either returns NULL or the address of the start of a block of memory at least as large as requested.

2. If the return value is not NULL then it is an address that is suitably aligned that it can be assigned to a pointer to any type of object.

3. If the return value is not NULL then it can be used to access such an object or an array of such objects in the space allocated.

4. If the return value is not NULL then it is disjoint from all other objects.

Then you will not be relying on undefined behaviour at all.

You may or may not be able to get much work done if malloc() keeps returning NULL (and I certainly wouldn't pay money for the one you proposed), but that is orthogonal to the question of whether you are relying on undefined behaviour.

In your case you experienced first-hand exactly why relying on undefined behaviour is risky -- using multithreaded code caused the compiler to switch to a different allocator causing "weird behaviour".

>I guess we have very different problems to deal with:
>in my app, if you can't dynamically allocate tens of GB
>of memory, then you're screwed. YMMV.

So what -- you don't bother checking to see whether you were able to allocate tens of GB of data because if the user's screwed anyway, you may as well liven it up by not even attempting to deal with the problem?

>>However:
>>
>>* Simply using processes instead of threads doesn't remove those additional
>>copy operations, so you still have to move the data explicitly and in advance in addition.
>
>Of course. Using separate processes isn't a way to make
>it faster; it's a way to make it *safer*.

Right, so to repeat the point I made:

"The problem with that is the overhead of copying data into different processes rules out a whole class of worthwhile operations that could be profitably threaded."

You responded "Maybe it does, maybe it doesn't.". Well, if you agree that using separate processes is slower than using threads, and if you agree with the proposition that there's no point parallelising the algorithm if it doesn't deliver a performance improvement, we can only conclude that not using threads therefore rules out those operations that would be faster if parallelised using threads but not faster if parallelised using processes.

>A lightweight
>thread can read and write everything; a separate process
>can only read and write what you explicitly copy in and
>out of it.

Which I stated at the end, yes.

>>* In at least one of our cases you don't know which data should be moved
>
>Doesn't sound particularly hard: there just needs to be
>a local task queue manager which then passes tasks
>(and their associated data) off to the worker processes.

Now who's trying to second-guess decisions without being aware of the context? :-)

In this case the work-per-item is too small to justify the overheads of IPC.

In the case where the work-per-item is sufficiently large that the IPC overheads are lost in the noise then it's a perfectly valid option. This isn't one of them.

>>* If your structure includes pointers then you'll have to >figure out how to remap
>
>Sure, we know how to serialize/deserialize data
>structures with pointers. And since your app can dump
>and reload its whole state, presumably you do too.

Yes -- and the time required is fine when you're loading or saving a project, but again, it rules out a whole class of worthwhile operations that could be profitably threaded if this is the only option.

Since the motive for parallelising the code is to gain performance, the overheads are critical in determining what can and what cannot be parallelised.

>>optimal one, as well as
>>copy across a whole bunch of other data that the data you >wish to process relies
>>on.
>
>There's some design work needed to precisely specify
>the data to be moved in and out, and to keep it as small
>as possible. But I actually think it may be good to
>force people to think about that explicitly (just as it's
>good for people to write procedures with arguments,
>rather than access everything through global variables).

We hardly use global variables at all as a matter of good coding style, but we still have a whole bunch of heavily interlinked data structures, and most of the suboperations that can be parallelised are so small that IPC overheads would make them not worthwhile using separate processess. Sad but true.
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                                        How much IPC?2009/08/17 05:25 AM
                                          Speculation and wasteDavid Kanter2009/08/17 10:03 AM
                                            Speculation and waste?2009/08/18 11:59 AM
                                              Speculation and wasteDavid Kanter2009/08/18 12:22 PM
                                              Speculation and wasteanon2009/08/19 02:52 AM
                                            Speculation and wasteTruePath2009/09/27 06:23 AM
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                                          How much IPCanon2009/08/18 02:27 AM
                                How much IPCanon2009/08/16 10:05 PM
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                                      How much IPCDavid Kanter2009/08/17 03:38 PM
                                      How much IPCMichael S2009/08/17 03:39 PM
                                        How much IPCDavid Kanter2009/08/17 03:48 PM
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                                            How much IPC_Arthur2009/08/17 05:33 PM
                                              How much IPCMichael S2009/08/17 05:56 PM
                                                How much IPC_Arthur2009/08/17 08:48 PM
                                                  How much IPCMichael S2009/08/18 03:07 AM
                                                    limits of sortinghobold2009/08/18 04:26 AM
                                                      limits of sortingMichael S2009/08/18 05:26 AM
                                                        limits of sorting_Arthur2009/08/18 06:03 AM
                                                          limits of sortingRichard Cownie2009/08/18 06:32 AM
                                                            limits of sortingMichael S2009/08/18 07:17 AM
                                                              limits of sortingRichard Cownie2009/08/18 08:22 AM
                                                                limits of sorting_Arthur2009/08/18 08:57 AM
                                                                  limits of sortingRichard Cownie2009/08/18 09:30 AM
                                                                    limits of sortingRichard Cownie2009/08/18 09:45 AM
                                                                    limits of sortingMichael S2009/08/18 09:50 AM
                                                                      limits of sortingRichard Cownie2009/08/18 10:09 AM
                                                                        limits of sortingMichael S2009/08/18 10:33 AM
                                                                          limits of sortingRichard Cownie2009/08/18 10:53 AM
                                                                            limits of sortingMichael S2009/08/18 11:28 AM
                                                                              limits of sortingRichard Cownie2009/08/18 12:01 PM
                                                                                limits of sortingJasonB2009/08/18 06:40 PM
                                                                                  limits of sortingRichard Cownie2009/08/18 07:22 PM
                                                                                    You work on EDA right Richard?David Kanter2009/08/18 07:49 PM
                                                                                      You work on EDA right Richard?Richard Cownie2009/08/19 05:56 AM
                                                                                        You work on EDA right Richard?David Kanter2009/08/19 08:26 AM
                                                                                          You work on EDA right Richard?Richard Cownie2009/08/19 08:47 AM
                                                                                            You work on EDA right Richard?slacker2009/08/19 09:52 AM
                                                                                              You work on EDA right Richard?Richard Cownie2009/08/19 10:10 AM
                                                                                                You work on EDA right Richard?slacker2009/08/19 11:36 PM
                                                                                                  You work on EDA right Richard?slacker2009/08/19 11:45 PM
                                                                                                  You work on EDA right Richard?Richard Cownie2009/08/20 05:28 AM
                                                                                                    You work on EDA right Richard?slacker2009/08/20 06:32 AM
                                                                                          You work on EDA right Richard?Aaron Spink2009/08/20 12:08 AM
                                                                                          You work on EDA right Richard?Rob Thorpe2009/08/20 08:31 AM
                                                                                            You work on EDA right Richard?David Kanter2009/08/20 09:58 AM
                                                                                              You work on EDA right Richard?Rob Thorpe2009/08/20 04:10 PM
                                                                                    limits of sortingrwessel2009/08/18 07:56 PM
                                                                                    limits of sortingJasonB2009/08/18 11:11 PM
                                                                                      limits of sortingJasonB2009/08/18 11:25 PM
                                                                                      limits of sortingRichard Cownie2009/08/19 06:32 AM
                                                                                        limits of sortingRob Thorpe2009/08/19 07:12 AM
                                                                                          limits of sortingRichard Cownie2009/08/19 07:46 AM
                                                                                        limits of sortingJasonB2009/08/19 08:43 PM
                                                                                          limits of sortingRichard Cownie2009/08/20 07:47 AM
                                                                                            limits of sortingJasonB2009/08/20 08:20 PM
                                                                                              limits of sortingRichard Cownie2009/08/20 11:12 PM
                                                                                                limits of sortingJasonB2009/08/21 02:08 AM
                                                                                                  limits of sortingRichard Cownie2009/08/21 05:15 AM
                                                                                                    limits of sortingJasonB2009/08/22 06:24 PM
                                                                                                      limits of sortingRichard Cownie2009/08/22 07:27 PM
                                                                                                        limits of sortingRichard Cownie2009/08/22 08:39 PM
                                                                                                        limits of sorting?2009/08/23 05:07 AM
                                                                                                          limits of sortingRichard Cownie2009/08/23 05:53 AM
                                                                                                            limits of sortinganonymous2009/08/23 11:42 AM
                                                                                                              useful link, thanksRichard Cownie2009/08/23 05:23 PM
                                                                                                            limits of sorting?2009/09/04 04:05 AM
                                                                                                        limits of sortingJasonB2009/08/23 09:26 AM
                                                                                                          wacky C++ featuresRichard Cownie2009/08/24 07:13 AM
                                                                                                            wacky C++ featuresa reader2009/08/24 09:59 PM
                                                                                                              wacky C++ featuresRichard Cownie2009/08/25 03:18 AM
                                                                                                                wacky C++ featuresa reader2009/08/25 07:04 AM
                                                                                                                  wacky C++ featuresPotatoswatter2009/08/25 10:21 PM
                                                                                                                    wacky C++ featuresnone2009/08/26 05:47 AM
                                                                                                                    wacky C++ featuresRichard Cownie2009/08/26 08:09 AM
                                                                                                                      wacky C++ featuresPotatoswatter2009/08/27 06:25 AM
                                                                                                            wacky C++ featuresAndi Kleen2009/08/25 12:06 AM
                                                                                                              wacky C++ featuresRichard Cownie2009/08/25 03:10 AM
                                                                                                              wacky C++ featuresOctoploid2009/08/25 03:40 AM
                                                                                                                wacky C++ featuresRichard Cownie2009/08/25 05:15 AM
                                                                                                                  wacky C++ featuresAndi Kleen2009/08/25 07:58 AM
                                                                                                                    thanksRichard Cownie2009/08/25 08:07 AM
                                                                                                                      thanksAndi Kleen2009/08/25 11:28 AM
                                                                                                              wacky C++ featuresanon2009/08/25 03:34 PM
                                                                                                                wacky C++ featuresAndi Kleen2009/08/25 10:25 PM
                                                                                                            wacky C++ featuresJasonB2009/08/25 01:13 AM
                                                                                                              wacky C++ featuresRichard Cownie2009/08/25 02:32 AM
                                                                                                                exceptiona reader2009/08/25 07:32 AM
                                                                                                                  exceptionRichard Cownie2009/08/25 07:57 AM
                                                                                                                    exceptionPotatoswatter2009/08/25 08:30 AM
                                                                                                                wacky C++ featuresJasonB2009/08/25 08:56 PM
                                                                                                                  correctionJasonB2009/08/25 09:47 PM
                                                                                                                    correctionc++2009/08/26 09:53 AM
                                                                                                                      correctionJasonB2009/08/26 07:48 PM
                                                                                                                      (new char[10]) does not have array type (NT)Potatoswatter2009/08/27 06:27 AM
                                                                                                                      correctionPotatoswatter2009/08/27 07:52 AM
                                                                                                                        correctionc++2009/08/27 09:29 AM
                                                                                                                          comeau bugs and gcc featuresPotatoswatter2009/08/27 09:51 AM
                                                                                                                            comeau bugs and gcc featuresPotatoswatter2009/08/27 11:28 AM
                                                                                                                  wacky C++ featuresRichard Cownie2009/08/26 09:17 AM
                                                                                                                    wacky C++ featuresJasonB2009/08/26 07:46 PM
                                                                                                                      wacky C++ featuresRichard Cownie2009/08/27 09:41 AM
                                                                                                                        wacky C++ featuresJasonB2009/08/27 09:33 PM
                                                                                                                          wacky C++ featuresRichard Cownie2009/08/28 01:24 AM
                                                                                                                            wacky C++ featuresRichard Cownie2009/08/28 01:27 AM
                                                                                                                              wacky C++ featuresMichael S2009/08/28 06:05 AM
                                                                                                                                wacky C++ featuresEduardoS2009/08/28 06:45 AM
                                                                                                                                wacky C++ featuresRichard Cownie2009/08/28 07:50 AM
                                                                                                                                  wacky C++ featuresJasonB2009/08/28 04:56 PM
                                                                                                                            wacky C++ featuresJasonB2009/08/28 05:55 PM
                                                                                                                              wacky C++ featuresRichard Cownie2009/08/28 07:44 PM
                                                                                                                            wacky C++ featuresKonrad Schwarz2009/09/07 04:24 AM
                                                                                                                  wacky C++ featuresEduardoS2009/08/26 03:22 PM
                                                                                                                    wacky C++ featuresJasonB2009/08/26 06:47 PM
                                                                                                                      wacky C++ featuresJukka Larja2009/08/27 12:03 AM
                                                                                                                        wacky C++ featuresJasonB2009/08/27 01:17 AM
                                                                                                                      wacky C++ featuresEduardoS2009/08/27 03:26 PM
                                                                                                                        wacky C++ featuresJasonB2009/08/27 06:31 PM
                                                                                                                          wacky C++ featuresEduardoS2009/08/28 03:25 PM
                                                                                                                            wacky C++ featuresJasonB2009/08/28 06:20 PM
                                                                                                                        wacky C++ featuresJasonB2009/08/27 09:56 PM
                                                                                                  Windows vs Unix/Linux cultureRichard Cownie2009/08/21 07:33 AM
                                                                                                    Windows vs Unix/Linux cultureMichael S2009/08/21 08:07 AM
                                                                                                      Windows vs Unix/Linux cultureRichard Cownie2009/08/21 08:33 AM
                                                                                                      Windows vs Unix/Linux culturePaul2009/08/22 04:12 AM
                                                                                                    Windows vs Unix/Linux cultureanon2009/08/21 11:18 PM
                                                                                                      Windows vs Unix/Linux cultureRichard Cownie2009/08/21 11:45 PM
                                                                                                        Windows vs Unix/Linux cultureanon2009/08/22 12:48 AM
                                                                                                    Windows vs Unix/Linux culturePaul2009/08/22 04:25 AM
                                                                                                      Windows vs Unix/Linux cultureGian-Carlo Pascutto2009/08/22 07:02 AM
                                                                                                        Windows vs Unix/Linux culturePaul2009/08/22 08:13 AM
                                                                                                          Windows vs Unix/Linux culturerwessel2009/08/24 03:09 PM
                                                                                                    Windows vs Unix/Linux cultureJasonB2009/08/22 05:28 PM
                                                                                                      Windows vs Unix/Linux cultureRichard Cownie2009/08/22 06:22 PM
                                                                                                        Windows vs Unix/Linux cultureJasonB2009/08/22 06:52 PM
                                                                                                          Windows vs Unix/Linux cultureRichard Cownie2009/08/22 07:47 PM
                                                                                                        EncapsulationKonrad Schwarz2009/09/03 04:49 AM
                                                                                                          Encapsulationanon2009/09/03 10:05 AM
                                                                                                          Encapsulation?2009/09/03 11:38 AM
                                                                                                          EncapsulationAndi Kleen2009/09/04 01:41 AM
                                                                                                            Encapsulationanon2009/09/04 07:24 AM
                                                                                                            EncapsulationRichard Cownie2009/09/04 07:34 AM
                                                                                                              EncapsulationKonrad Schwarz2009/09/07 03:28 AM
                                                                                                                EncapsulationRichard Cownie2009/09/07 04:04 PM
                                                                                                        Windows vs Unix/Linux culture?2009/09/03 11:51 AM
                                                                                                      Windows vs Unix/Linux cultureno thanks2009/08/23 10:36 AM
                                                                                                        Windows vs Unix/Linux cultureRichard Cownie2009/08/23 04:23 PM
                                                                                                          Windows vs Unix/Linux cultureJasonB2009/08/23 08:31 PM
                                                                                                            Windows vs Unix/Linux cultureRichard Cownie2009/08/24 12:10 AM
                                                                                                              Windows vs Unix/Linux cultureJukka Larja2009/08/24 10:13 PM
                                                                                                              Windows vs Unix/Linux cultureJasonB2009/08/24 11:35 PM
                                                                                                                Windows vs Unix/Linux cultureRichard Cownie2009/08/25 03:04 AM
                                                                                                                  Windows vs Unix/Linux cultureJasonB2009/08/25 11:48 PM
                                                                                                                    Windows vs Unix/Linux cultureRichard Cownie2009/08/26 08:28 AM
                                                                                                                      Windows vs Unix/Linux cultureJasonB2009/08/26 10:31 PM
                                                                                                                    Windows vs Unix/Linux cultureRichard Cownie2009/08/26 08:43 AM
                                                                                                                    Windows vs Unix/Linux cultureanon2009/08/26 01:48 PM
                                                                                                                      Windows vs Unix/Linux cultureRichard Cownie2009/08/26 03:28 PM
                                                                                                                      Windows vs Unix/Linux cultureJasonB2009/08/26 08:06 PM
                                                                                                                        Windows vs Unix/Linux cultureRichard Cownie2009/08/27 03:44 AM
                                                                                                                          Windows vs Unix/Linux cultureRob Thorpe2009/08/27 05:51 AM
                                                                                                        Windows vs Unix/Linux cultureJasonB2009/08/23 09:07 PM
                                                                                                          Windows vs Unix/Linux cultureno thanks2009/08/23 09:44 PM
                                                                                                            Windows vs Unix/Linux cultureJasonB2009/08/24 12:34 AM
                                                                                                        Windows vs Unix/Linux cultureanon2009/08/23 09:46 PM
                                                                                          limits of sortingRichard Cownie2009/08/20 07:59 AM
                                                                                            limits of sortingRichard Cownie2009/08/20 09:27 AM
                                                                                              limits of sortingJasonB2009/08/20 08:55 PM
                                                                                                limits of sortingRichard Cownie2009/08/20 11:22 PM
                                                                                                  limits of sortingJasonB2009/08/21 12:15 AM
                                                                                                    limits of sortingRichard Cownie2009/08/21 04:47 AM
                                                                                              limits of sorting?2009/08/20 11:42 PM
                                                                                                limits of sortingRichard Cownie2009/08/21 07:51 AM
                                                                                                  limits of sortingMichael S2009/08/21 08:11 AM
                                                                                                    limits of sortingRichard Cownie2009/08/21 08:38 AM
                                                                                            limits of sortingdmsc2009/08/20 07:56 PM
                                                                                              limits of sortingRichard Cownie2009/08/20 08:20 PM
                                                                                          limits of sortingRob Thorpe2009/08/20 08:09 AM
                                                                              limits of sortingAaron Spink2009/08/20 12:19 AM
                                                                                limits of sortingJasonB2009/08/20 01:55 AM
                                                          limits of sortingMichael S2009/08/18 07:12 AM
                                                        limits of sortinghobold2009/08/18 07:55 AM
                                                          limits of sortingrwessel2009/09/08 02:52 PM
                                                            maximal theoretical sorting efficiencyEmil2009/09/08 07:06 PM
                                                              maximal theoretical sorting efficiencyrwessel2009/09/08 10:04 PM
                                                                maximal theoretical sorting efficiencyhobold2009/09/09 04:56 AM
                                                              maximal theoretical sorting efficiencyRichard Cownie2009/09/09 09:10 AM
                                                                maximal theoretical sorting efficiencyhobold2009/09/10 05:39 AM
                                                                  maximal theoretical sorting efficiencyRichard Cownie2009/09/10 08:05 AM
                                                                    maximal theoretical sorting efficiencyPotatoswatter2009/09/10 01:23 PM
                                                                  maximal theoretical sorting efficiencydmsc2009/09/13 08:04 AM
                                                      limits of sortingPotatoswatter is back!2009/08/21 06:07 PM
                                                        indeed it doesn't succeed in partitioning at all, but you get the idea ;) (NT)Potatoswatter is back!2009/08/21 06:12 PM
                                                          indeed it doesn't succeed in partitioning at all, but you get the idea ;) (NT)Jouni Osmala2009/08/22 01:01 AM
                                                        limits of sortinghobold2009/08/22 07:25 AM
                                                          limits of sortingPotatoswatter2009/08/22 08:45 AM
                                                          limits of sortingDavid Kanter2009/08/22 10:16 AM
                                                            limits of sortingJouni Osmala2009/08/22 12:01 PM
                                                              Oops that was counting sort not bucket sort ;(Jouni Osmala2009/08/22 12:07 PM
                                                                close enough for my purposeshobold2009/08/22 02:15 PM
                                                            select vs. cmovehobold2009/08/22 02:25 PM
                                              How much IPCGian-Carlo Pascutto2009/08/18 03:25 AM
                                                How much IPCVincent Diepeveen2009/08/19 06:46 AM
                                                  How much IPC_Arthur2009/08/19 09:32 AM
                                              How much IPChobold2009/08/18 04:17 AM
                                                How much IPCMichael S2009/08/18 05:33 AM
                                                  How much IPChobold2009/08/18 07:35 AM
                                              How much IPC?2009/08/18 12:20 PM
                                                How much IPC_Arthur2009/08/18 12:33 PM
                                                  Nit pickingDavid Kanter2009/08/18 02:17 PM
                                                    Nit picking_Arthur2009/08/18 02:37 PM
                                                      Nit pickingMichael S2009/08/18 03:02 PM
                                                        Nit pickingS. Rao2009/08/18 05:02 PM
                                                          Nit pickinganon2009/08/19 03:03 AM
                                                    Nit pickingMichael S2009/08/18 02:53 PM
                                                      Nit pickingJasonB2009/08/18 07:16 PM
                                                  How much IPC?2009/08/18 02:37 PM
                                                    How much IPC_Arthur2009/08/18 04:23 PM
                                                      How much IPCMatt Sayler2009/08/18 06:09 PM
                                                      How much IPC?2009/08/18 11:59 PM
                                  nick's testcasea reader2009/08/17 05:47 PM
                                How much IPCTruePath2009/09/27 10:00 AM
                                  Explicit dependency chainsDavid Kanter2009/09/30 07:56 PM
                                How much IPCTruePath2009/09/27 10:00 AM
                              How much IPChobold2009/08/17 06:38 AM
                            How much IPCanon2009/08/16 09:59 PM
                            Speeing Up Single ThreadsTruePath2009/09/27 08:58 AM
                      How much IPCanon2009/08/15 08:01 PM
                        How much IPCEduardoS2009/08/16 07:06 AM
                        How much IPCsJ2009/08/16 09:48 PM
              Power7 vs. single threaded performance and licensinganon2009/08/14 03:26 PM
                Power7 vs. single threaded performance and licensingLinus Torvalds2009/08/14 04:04 PM
              Power7 vs. single threaded performance and licensingJonathan Kang2009/08/21 03:43 PM
                Power7 vs. single threaded performance and licensingLinus Torvalds2009/08/21 04:08 PM
                  Power7 vs. single threaded performance and licensingLinus Torvalds2009/08/21 04:33 PM
                    Power7 vs. single threaded performance and licensingJonathan Kang2009/08/22 08:57 AM
                      Power7 vs. single threaded performance and licensingJukka Larja2009/08/22 11:04 PM
                        Power7 vs. single threaded performance and licensingJonathan Kang2009/08/25 12:33 PM
                  Power7 vs. single threaded performance and licensing?2009/08/22 12:51 AM
                    Power7 vs. single threaded performance and licensinganon2009/08/22 10:56 AM
                      Power7 vs. single threaded performance and licensingLinus Torvalds2009/08/22 11:38 AM
                      Power7 vs. single threaded performance and licensing?2009/08/23 04:05 AM
                        Power7 vs. single threaded performance and licensingEduardoS2009/08/23 04:28 AM
                          Programming Larrabee?2009/08/23 06:48 AM
                            Programming LarrabeeEduardoS2009/08/23 07:41 AM
                              Programming Larrabeeanon2009/08/23 08:29 AM
                            Programming LarrabeePotatoswatter2009/08/23 07:47 AM
                              Programming LarrabeeRichard Cownie2009/08/23 09:11 AM
                                Programming LarrabeePotatoswatter2009/08/24 12:49 AM
                              Programming Larrabee?2009/08/23 09:59 AM
                                Programming LarrabeePotatoswatter2009/08/24 12:44 AM
                                Programming Larrabeehobold2009/08/24 06:41 AM
                                  Programming Larrabeenone2009/08/24 08:15 AM
                                    Programming LarrabeeRichard Cownie2009/08/24 08:33 AM
                                    Programming LarrabeeJukka Larja2009/08/24 10:30 PM
                                      Programming Larrabeenone2009/08/25 02:53 AM
                            Programming Larrabeempx2009/08/25 09:16 AM
                  Power7 vs. single threaded performance and licensingJoe2009/08/24 09:38 AM
            Power7 vs. single threaded performance and licensingGabriele Svelto2009/08/14 04:35 AM
              Power7 vs. single threaded performance and licensinganon2009/08/14 09:18 AM
                Power7 vs. single threaded performance and licensingEduardoS2009/08/14 05:34 PM
                  Power7 vs. single threaded performance and licensinganon2009/08/15 07:30 AM
                    Power7 vs. single threaded performance and licensinganon2009/08/15 08:23 AM
                improving NetburstAM2009/08/15 02:36 AM
                  improving Netburstanon2009/08/15 08:10 AM
                    improving NetburstEuronymous2009/08/15 09:35 AM
                    improving NetburstMichael S2009/08/15 02:18 PM
                Power7 vs. single threaded performance and licensingJonathan Kang2009/08/21 04:10 PM
                  Power7 vs. single threaded performance and licensinganon2009/08/22 10:46 AM
                    Power7 vs. single threaded performance and licensingJonathan Kang2009/08/25 10:39 AM
                      Power7 vs. single threaded performance and licensingslacker2009/08/26 05:50 AM
                        Power7 vs. single threaded performance and licensingJonathan Kang2009/08/26 09:12 AM
                        Power7 vs. single threaded performance and licensingJonathan Kang2009/08/26 09:45 AM
                          Power7 vs. single threaded performance and licensingsomeone2009/08/26 11:29 AM
                            Power7 vs. single threaded performance and licensingDavid Kanter2009/08/26 11:47 AM
          Not necessarilyDaniel Bizó2009/08/14 03:53 AM
        new POWER7 info ..Thu Nguyen2009/08/25 04:05 AM
          new POWER7 info ..someone2009/08/25 06:47 AM
            new POWER7 info ..hobold2009/08/25 07:50 AM
              new POWER7 info ..G Webb2009/08/26 12:49 AM
            new POWER7 info ..mpx2009/08/25 08:36 AM
              new POWER7 info ..someone2009/08/25 09:16 AM
                new POWER7 info ..Jesper Frimann2009/08/27 09:18 AM
                  new POWER7 info ..Linus Torvalds2009/08/27 11:53 AM
                  new POWER7 info ..someone2009/08/27 01:00 PM
                    new POWER7 info ..a reader2009/08/27 04:21 PM
                      new POWER7 info ..David Kanter2009/08/27 09:32 PM
                        new POWER7 info ..a reader2009/08/28 08:45 AM
                    new POWER7 info ..hobold2009/08/28 05:00 AM
                      new POWER7 info ..someone2009/08/28 06:51 AM
                        new POWER7 info ..hobold2009/08/28 07:44 AM
                          new POWER7 info ..someone2009/08/28 08:10 AM
                        Non Autopar submissions for NehalemIlleglWpns2009/08/28 10:41 AM
                          Non Autopar submissions for NehalemDavid Kanter2009/08/28 11:07 AM
                          Non Autopar submissions for Nehalemsomeone2009/08/28 12:00 PM
          new POWER7 info ..mas2009/08/26 12:25 AM
            An EV8 lite? (NT)anon2009/08/26 09:21 AM
              An EV8 lite? => Piranha?M.2009/08/30 04:54 AM
            new POWER7 info ..Mark Roulo2009/08/27 06:51 AM
              new POWER7 info ..someone2009/08/27 07:03 AM
                new POWER7 info ..a reader2009/08/27 09:55 AM
                  new POWER7 info ..someone2009/08/27 11:58 AM
                    new POWER7 info ..a reader2009/08/27 04:11 PM
                      new POWER7 info ..Gabriele Svelto2009/08/28 12:17 AM
                      new POWER7 info ..someone2009/08/28 05:27 AM
                        new POWER7 info ..a reader2009/08/28 09:07 AM
                        OOOE for low powerDavid Kanter2009/08/28 11:15 AM
                          OOOE for low powersomeone2009/08/28 11:39 AM
                            OOOE for low powerDavid Kanter2009/08/28 01:55 PM
                              OOOE for low powerMark Roulo2009/08/28 03:16 PM
                                OOOE for low powerMark Roulo2009/08/28 03:44 PM
                                  Atom uarchDavid Kanter2009/08/28 08:19 PM
                                OOOE for low powerDavid Kanter2009/08/28 08:07 PM
                              OOOE for low powersomeone2009/08/28 04:18 PM
                                OOOE for low powerDavid Kanter2009/08/29 01:55 AM
                                  OOOE for low powersomeone2009/08/29 07:21 AM
                                    OOOE for low powera reader2009/08/29 09:14 AM
                                      OOOE for low powersomeone2009/08/29 09:56 AM
                                        OOOE for low powerDavid Kanter2009/08/29 10:08 AM
                                      OOOE for low powerMichael S2009/08/29 11:27 AM
                                        OOOE for low powera reader2009/08/29 04:50 PM
                                        OOOE for low poweranonymous2009/08/29 07:17 PM
                                          OOOE for low powerMichael S2009/08/30 12:07 AM
                                            OOOE for low powerJonathan Kang2009/09/01 05:44 AM
                                              OOOE for low powerMichael S2009/09/01 04:21 PM
                                                OOOE for low powerMark Roulo2009/09/01 05:53 PM
                                                  OOOE for low powerWilco2009/09/02 02:27 AM
                                                    OOOE for low powerMark Roulo2009/09/02 08:46 AM
                                                      OOOE for low powerWilco2009/09/02 04:52 PM
                                                    Define "emulate" (NT)Michael S2009/09/02 11:44 PM
                                                      Define "emulate"Wilco2009/09/03 12:33 AM
                                                        Define "emulate"none2009/09/03 04:46 AM
                                                          Define "emulate"Adrian2009/09/03 10:45 AM
                                                          Define "emulate"Wilco2009/09/03 02:20 PM
                                                            Define "emulate"none2009/09/03 10:41 PM
                                                              Define "emulate"Wilco2009/09/04 03:30 AM
                                                  low power ARM chipsMichael S2009/10/31 02:32 PM
                                                    low power ARM chipsGabriele Svelto2009/10/31 04:05 PM
                                                      low power ARM chipsMichael S2009/10/31 04:45 PM
                                                        low power ARM chipst2009/10/31 05:21 PM
                                    OOOE for low powerDavid Kanter2009/08/29 10:07 AM
                                      OOOE for low powersomeone2009/08/29 12:40 PM
                                        OOOE for low powera reader2009/08/29 05:03 PM
                                        OOOE for low poweranonymous2009/08/29 07:13 PM
                                          OOOE for low powersomeone2009/08/30 07:35 AM
                                            OOOE for low powerDavid Kanter2009/08/30 02:32 PM
                                            OOOE for low powerMatt Sayler2009/08/31 01:38 PM
                                        OOOE for low powerDavid Kanter2009/08/30 12:07 PM
                                    OOOE for low powerMichael S2009/08/29 11:44 AM
                                  TTMMichael S2009/08/29 12:24 PM
                                    TTMFoo_2009/08/29 01:40 PM
                                      TTMMichael S2009/08/29 02:10 PM
                                        TTManon2009/08/29 07:33 PM
                                          TTMJukka Larja2009/08/29 09:49 PM
                                            TTManon2009/08/30 06:07 AM
                                              TTMJukka Larja2009/08/30 09:31 PM
                                                Area, power and AtomDavid Kanter2009/08/30 10:36 PM
                                                  Area, power and AtomMichael S2009/08/31 12:18 AM
                                                    Area, power and Atoma reader2009/08/31 08:44 AM
                                                      Area, power and AtomMichael S2009/08/31 12:19 PM
                                                        Area, power and Atoma reader2009/08/31 02:53 PM
                                                          Area, power and Atomanonymous2009/08/31 04:17 PM
                                                        Area, power and AtomGabriele Svelto2009/08/31 03:41 PM
                                                          64-bit disabled AtomsFoo_2009/09/02 04:38 AM
                                                            64-bit disabled AtomsRobert David Graham2009/09/02 12:56 PM
                                                              64-bit disabled Atomsanon2009/09/02 02:14 PM
                                                              64-bit disabled Atomsanonymous2009/09/02 04:30 PM
                                                TTMMichael S2009/08/30 11:49 PM
                                                  TTMJukka Larja2009/08/31 11:23 PM
                                            TTMPaul2009/08/30 06:38 AM
                                            TTMPaul2009/08/30 06:40 AM
                                        TTMMark Roulo2009/08/30 09:50 AM
                                          TTMPaul2009/08/30 09:54 AM
                                            TTMMark Roulo2009/08/30 10:16 AM
                                        TTMFoo_2009/09/02 04:31 AM
                                  OOOE for low powerRob Thorpe2009/08/30 09:19 AM
                                OOOE for low powerMichael S2009/08/29 11:16 AM
                                  OOOE for low powerJukka Larja2009/08/29 09:40 PM
                                    OOOE for low powerMichael S2009/08/30 12:04 AM
                          OOOE and cache/mem sizesRichard Cownie2009/08/28 05:30 PM
                            OOOE and cache/mem sizesLinus Torvalds2009/08/31 10:53 PM
                              OOOE and cache/mem sizesRichard Cownie2009/09/01 04:15 AM
                                OOOE and pipe length etc.AM2009/09/01 08:35 AM
                                  OOOE and pipe length etc.Jouni Osmala2009/09/01 08:57 AM
                                    OOOE and clock rateAM2009/09/02 01:34 AM
                                      OOOE and clock rateJouni Osmala2009/09/02 05:35 AM
                                        OOOE and clock rateMartin Høyer Kristiansen2009/09/02 06:19 AM
                                          OOOE and clock rateanon2009/09/02 09:43 PM
                                        OOOE and clock rateAM2009/09/03 02:52 AM
                                          OOOE and clock rateJouni Osmala2009/09/03 07:34 AM
                                            OOOE impactsAM2009/09/04 02:04 AM
                                              OOOE impactsDavid Kanter2009/09/04 10:12 AM
                                              OOOE impactsJouni Osmala2009/09/06 12:16 PM
                                                OOOE impactsAM2009/09/07 03:47 AM
                                                  OOOE impactsMartin Høyer Kristiansen2009/09/07 06:03 AM
                                                    Does IBM lie about PPC603 being OoO chip?AM2009/09/08 03:13 AM
                                                      No, but...Michael S2009/09/08 07:05 AM
                                                        No, but...hobold2009/09/09 05:09 AM
                                                  OOOE impactsJS2009/09/07 06:34 AM
                                                    Are Sandpile and others wrong about 0.28 um?AM2009/09/08 03:12 AM
                                                    OOOE impactssomeone2009/09/08 06:43 AM
                                                  OOOE impactsJouni Osmala2009/09/07 07:48 AM
                                                    OOOE costsDavid Kanter2009/09/07 12:07 PM
                                                    OOOE impactsAM2009/09/08 03:11 AM
                                                      OOOE impactsJouni Osmala2009/09/10 01:53 AM
                                                        OOOE impactsAM2009/09/11 04:35 AM
                                                          OOOE impactsJouni Osmala2009/09/11 08:38 AM
                                                            OOOE impactsAM2009/09/12 05:06 AM
                                                              OOOE impactsJouni Osmala2009/09/12 11:36 PM
                                                                OOOE impactsAM2009/09/14 04:39 AM
                                                                  OOOE impactsJouni Osmala2009/09/14 06:18 AM
                                                                    if-ex distanceAM2009/09/15 05:16 AM
                                                                    small addendumAM2009/09/19 03:54 AM
                                                                      small addendumJouni Osmala2009/09/19 09:51 PM
                                                                        small addendumAM2009/09/20 06:54 AM
                                                                          small addendumJouni Osmala2009/09/20 01:16 PM
                                                                            small addendumThiago Kurovski2009/09/20 04:51 PM
                                                                              small addendumJouni Osmala2009/09/20 09:21 PM
                                                                                small addendumThiago Kurovski2009/09/21 06:59 AM
                                                                            small addendumAM2009/09/21 03:14 AM
                                                                              small addendumJukka Larja2009/09/21 10:21 PM
                                                                                small addendumAM2009/09/22 03:01 AM
                                                                                  small addendumJukka Larja2009/09/22 11:31 PM
                                                                                    small addendumAM2009/09/23 08:35 AM
                                                                                      small addendumJukka Larja2009/09/23 10:31 PM
                                                                                        small addendumAM2009/09/24 12:13 AM
                                                                                          OT metadiscussionJukka Larja2009/09/24 09:39 PM
                                                                                            OT metadiscussionAM2009/09/25 05:18 AM
                                                                                              Back to bitsMichael S2009/09/25 07:14 AM
                                                                                                Back to bitsThiago Kurovski2009/09/25 11:24 AM
                                                                                                  Back to bitsWilco2009/09/25 03:18 PM
                                                                                                    Back to bitsThiago Kurovski2009/09/26 09:12 AM
                                                                                                  Back to bitsMichael S2009/09/26 08:54 AM
                                                                                                    Back to bitsThiago Kurovski2009/09/26 09:05 AM
                                                                                                      Back to bitsMichael S2009/09/26 09:16 AM
                                                                                                Agree, with very minor change.Jouni Osmala2009/09/25 09:37 PM
                                                                                                Back to bitsAM2009/09/26 06:16 AM
                                                                                                  Back to bitsMichael S2009/09/26 09:13 AM
                                                                                              OT metadiscussionDavid Kanter2009/09/25 12:23 PM
                                                                                                OT metadiscussionAM2009/09/26 05:55 AM
                                                                                              OT metadiscussionJukka Larja2009/09/25 11:33 PM
                                                                                                OT metadiscussionAM2009/09/26 05:50 AM
                                                                                                  OT metadiscussionJukka Larja2009/09/27 02:16 AM
                                                                                                    OT metadiscussionMichael S2009/09/27 04:58 AM
                                                                                                      OT metadiscussionAM2009/09/28 04:07 AM
                                                                                                    OT metadiscussionAM2009/09/28 03:43 AM
                                                                                                      OT metadiscussionJukka Larja2009/09/29 12:45 AM
                                                                                                        OT metadiscussionAM2009/09/30 03:13 AM
                                                                                                          OT metadiscussionJukka Larja2009/10/01 01:34 AM
                                                                                                            OT metadiscussionAM2009/10/01 04:05 AM
                                                                                                              OT metadiscussionJukka Larja2009/10/02 12:38 AM
                                                                                                                OT metadiscussionAM2009/10/03 07:19 AM
                                                                                                                  OT metadiscussionJukka Larja2009/10/04 03:38 AM
                                                                                                                    OT metadiscussionAM2009/10/04 08:27 AM
                                                                                                                      OT metadiscussionJukka Larja2009/10/04 11:48 PM
                                                                                                                        OT metadiscussionAM2009/10/05 07:13 AM
                                                                                                                          About teachingJukka Larja2009/10/05 11:36 PM
                                                                                                                            About teachingAM2009/10/06 04:37 AM
                                                                                                                              About teachingJukka Larja2009/10/07 03:15 AM
                                                                                                                                About teachinganon2009/10/07 12:39 PM
                                                                                                                                About teachingAM2009/10/08 03:11 AM
                                                                                                                                  About teachingJukka Larja2009/10/09 04:10 AM
                                                                                                                                    About teachingAM2009/10/09 05:40 AM
                                                                                                                                      About teachingJukka Larja2009/10/09 09:02 PM
                                                                                                                                        About teachingAM2009/10/09 11:24 PM
                                                                                                                                          About teachingJukka Larja2009/10/10 10:50 PM
                                                                                                                                            About teachingAM2009/10/12 02:02 AM
                                                                                                                                              About teachingJukka Larja2009/10/12 10:51 PM
                                                                                                                                                About teachingAM2009/10/13 04:06 AM
                                                                                                                                                  About teachingJukka Larja2009/10/13 11:33 PM
                                                                                                                                                    About teachingAM2009/10/14 03:36 AM
                                                                                                                                                      About teachingJukka Larja2009/10/14 08:19 PM
                                                                                                                                                        About teachingAM2009/10/15 04:22 AM
                                                                                                                                          About teachingSalvatore De Dominicis2009/10/12 02:23 AM
                                                                                                                                            About teachingDean Kent2009/10/12 12:25 PM
                                                                                                                                              About teachingSalvatore De Dominicis2009/10/13 02:11 AM
                                                                                                OT metadiscussionSeni2009/09/26 06:26 AM
                                                                                                  OT metadiscussionWilco2009/09/26 08:08 AM
                                                                                                  OT metadiscussionJukka Larja2009/09/27 02:18 AM
                                                                                                    OT metadiscussionMichael S2009/09/27 05:12 AM
                                                                                          small addendumJouni Osmala2009/09/24 10:04 PM
                                                                                            small addendumAM2009/09/25 05:04 AM
                                                                                            extra stage in EV6AM2009/09/26 06:29 AM
                                                    PPC603 does OoOEhobold2009/09/08 05:40 AM
                                                  OOOE impactssomeone2009/09/08 05:39 AM
                                                    EV6AM2009/09/09 04:33 AM
                                      OOOE and clock rateSeni2009/09/02 09:11 AM
                                        OOOE and clock rateLinus Torvalds2009/09/02 06:48 PM
                                          OOOE and clock rateanon2009/09/02 11:55 PM
                                            OOOE and clock rateWilco2009/09/03 12:44 AM
                                              OOOE and clock rateJouni Osmala2009/09/03 01:02 AM
                                                OOOE and ItaniumAM2009/09/03 01:27 AM
                                                OOOE and clock rateMartin Høyer Kristiansen2009/09/03 03:41 AM
                                              OOOE and clock rateanon2009/09/03 01:12 AM
                                                OOOE and clock rateWilco2009/09/03 02:10 AM
                                            POWER6 skewed pipelinePaul A. Clayton2009/09/03 11:22 AM
                                              POWER6 skewed pipelineAnon42009/09/03 07:00 PM
                                          OOOE and clock rateMr. Camel2009/09/03 03:40 AM
                                          OOOE and clock rateRichard Cownie2009/09/03 06:42 AM
                                  OOOE and pipe length etc.Richard Cownie2009/09/01 09:01 AM
                                    OOOE and pipe length etc.AM2009/09/02 01:32 AM
                                      OOOE and pipe length etc.Richard Cownie2009/09/02 07:49 AM
                                        LRB choice of P54AM2009/09/03 01:40 AM
                                          LRB choice of P54Gian-Carlo Pascutto2009/09/03 01:45 AM
                                            LRB choice of P54AM2009/09/03 03:18 AM
                                              LRB choice of P54Gian-Carlo Pascutto2009/09/03 03:55 AM
                                                LRB choice of P54AM2009/09/03 04:28 AM
                                                  LRB choice of P54Gian-Carlo Pascutto2009/09/03 05:29 AM
                                                    Amount of cache per core matters,and mem bandwith too (NT)Jouni Osmala2009/09/03 07:44 AM
                                                    LRB choice of P54rwessel2009/09/03 02:31 PM
                                                    LRB choice of P54AM2009/09/04 02:24 AM
                                                  LRB choice of P54anon2009/09/03 06:40 AM
                                                    LRB choice of P54a reader2009/09/03 09:20 AM
                                                      LRB choice of P54anon2009/09/03 05:57 PM
                                                    LRB choice of P54Jonathan Kang2009/09/03 02:30 PM
                                                      LRB choice of P54David Kanter2009/09/03 04:38 PM
                                                        LRB choice of P54Jonathan Kang2009/09/04 08:16 AM
                                                      LRB choice of P54anon2009/09/03 06:07 PM
                                                        LRB choice of P54AM2009/09/04 02:20 AM
                                                        LRB choice of P54Jonathan Kang2009/09/04 08:13 AM
                                                          LRB choice of P54Dan Downs2009/09/04 08:38 AM
                                                            LRB choice of P54Dan Downs2009/09/05 04:36 AM
                                                              LRB choice of P54Anon2009/09/05 02:44 PM
                                                          LRB choice of P54AM2009/09/05 12:12 AM
                                                    LRB choice of P54AM2009/09/04 02:18 AM
                                                      LRB choice of P54anon2009/09/04 08:18 PM
                                                        LRB choice of P54AM2009/09/04 11:53 PM
                                                          LRB choice of P54anon2009/09/05 04:06 AM
                                                            LRB choice of P54AM2009/09/05 09:14 AM
                                                  LRB choice of P54 - Layout?Anonymous2009/09/03 02:40 PM
                                                    LRB choice of P54 - Layout?anonymous2009/09/03 03:54 PM
                                                  LRB choice of P54Jukka Larja2009/09/03 09:58 PM
                                                  LRB choice of P54mpx2009/09/04 04:07 AM
                                          LRB choice of P54anon2009/09/03 02:02 AM
                                        OOOE and pipe length etc.Gian-Carlo Pascutto2009/09/03 01:40 AM
                                      Larrabee: Pentium vs 486 vs 386Mark Roulo2009/09/03 04:26 PM
                                        Larrabee: Pentium vs 486 vs 386Michael S2009/09/03 05:14 PM
                                          Larrabee: Pentium vs 486 vs 386Mark Roulo2009/09/04 10:05 AM
                                            Larrabee: Pentium vs 486 vs 386Jonathan Kang2009/09/04 10:59 AM
                                            Larrabee: Pentium vs 486 vs 386Michael S2009/09/05 09:58 AM
                                            Larrabee: Pentium vs 486 vs 386James2009/09/07 03:15 AM
                                              Larrabee: Pentium vs 486 vs 386Mark Roulo2009/09/07 07:44 PM
                                      OOOE and pipe length etc.Michael S2009/09/03 05:42 PM
                                        LRB coreAM2009/09/04 02:09 AM
                                          LRB coreMichael S2009/09/04 05:07 AM
                                            LRB coreanon2009/09/04 08:27 PM
                                              LRB coreMichael S2009/09/05 10:12 AM
                                                LRB coreanon2009/09/05 11:03 PM
                                                  reasons for split I/D L1 cachesMichael S2009/09/06 04:10 AM
                                                    reasons for split I/D L1 cachesanon2009/09/06 06:32 AM
                                                      reasons for split I/D L1 caches?2009/09/06 10:35 AM
                                                        reasons for split I/D L1 cachesmegol2009/09/06 03:39 PM
                                                          reasons for split I/D L1 caches?2009/09/07 04:20 AM
                                                            reasons for split I/D L1 cachesanon2009/09/07 06:25 AM
                                                              cache hinting?2009/09/07 07:10 AM
                                                                cache hintinganon2009/09/07 07:35 AM
                                                                  cache hinting?2009/09/07 09:10 AM
                                                                    cache hintinganon2009/09/07 09:49 AM
                                                                      cache hinting?2009/09/07 10:37 AM
                                              Split and unified cachesDavid Kanter2009/09/06 01:38 PM
                                                Split and unified cachesanon2009/09/06 11:15 PM
                                                  Split and unified cachesMichael S2009/09/07 12:40 AM
                                                    Split and unified cachesanon2009/09/07 02:24 AM
                                                  Split and unified cachesDavid Kanter2009/09/07 12:51 AM
                                                    Split and unified cachesanon2009/09/07 02:13 AM
                                            LRB coreAM2009/09/05 12:08 AM
                                            LRB coreLinus Torvalds2009/09/05 10:47 AM
                                          LRB coreDavid Kanter2009/09/04 01:23 PM
                                            LRB coreAnon2009/09/04 06:32 PM
                                              LRB coreDavid Kanter2009/09/04 10:15 PM
                                              LRB coreMichael S2009/09/05 10:21 AM
                              OOOE and cache/mem sizesa reader2009/09/01 09:19 AM
                                OOOE and cache/mem sizesRichard Cownie2009/09/01 09:43 AM
                      snapdraon?Michael S2009/08/28 06:10 AM
                        snapdraon?a reader2009/08/28 08:51 AM
                          Thanks (NT)Michael S2009/08/29 12:53 PM
                        snapdraon?Paul2009/08/28 01:12 PM
              new POWER7 info ..EduardoS2009/08/27 03:41 PM
                new POWER7 info ..Jesper Frimann2009/08/28 05:03 AM
                  Single threaded performanceDavid Kanter2009/08/28 10:52 AM
  Hot Chips XXI Preview onlinehobold2009/08/13 07:30 AM
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How do you spell purple?