vectorization of utf8

By: anon2 (anon.delete@this.anon.com), July 13, 2020 11:23 pm
Room: Moderated Discussions
Robert David Graham (robert_david_graham.delete@this.yahoo.com) on July 13, 2020 8:36 pm wrote:
> anon2 (anon.delete@this.anon.com) on July 13, 2020 5:07 pm wrote:
> >
> > And network communication varies completely. You absolutely can "trust" your network data at one level if
> > trust and integrity are established at other levels. Often network data is checked a bit more even in that
> > case because its easy and possible at the performance scales you're dealing with. But not always. Clustered
> > storage or RDMA or very high speed cluster? Network over the local host or via shared memory, data coming
> > from your local NVMe drives? Threads of the same process? It's perfectly fine to take an appropriate level
> > of trust at any and all of those cases and check what makes sense and trust what makes sense.
>
> Well, as I said, the history of input validation vulnerabilities is not a history of failure to
> understand input validation, but a failure of understanding what's "untrusted". All the Internet
> worms, especially RPC worms in Linux and Windows, comes from much the same discussion: programmers
> made assumptions about the other side being trustworthy that later proved not to be true.

So what exact parts of a complex library that you don't trust would you use, and what would you validate?

https://www.openssl.org/news/vulnerabilities.html

I understand the need for validation, I understand the concept of trusting different compoenents, and defense in depth. And the blanket statement that you don't trust libraries or that you have to validate them again is simply wrong.

I definitely don't argue against doing assertions and debug checks on inputs and outputs to check your invariants and catch misuses of interfaces and things. But there's situations where it doesn't make sense to blanket not trust. Not just for libraries but even for IPC, disk, network.

>
> DMA is a great demonstration of this principle. By definition, the CPU isn't involved.
> And yet, we still have numerous DMA vulnerabilities, which is why Intel's next USB
> 4 spec demands that VT-d be a part of it, to address DMA vulnerabilities.

What is it demonstrating?

>
>
> > Right, but the bug is not in trusting the SSL library. If you don't trust it
> > to handle domain names properly, then you certainly don't trust with your data
> > or keys! Your solution would be for everyone to implement their own crypto.
>
> But they did handle hostnames exactly as they promised, which is to say, they promised
> the contents of the SNI field. The problem was the users of the SSL libraries who
> made assumptions that the contents of this field would be a valid hostname.

Buffer overflow caused by mis-using the API.

You can point to any particular example of a bug post facto and say if only they should have been checking for such things. There is no logical pathway from there to a conclusion that therefore nobody should trust anythingand should always check everything, or even that they should have employed a methodology that would have been checking for such things.

The end result is more people writing more duplicate code that they are not expert in. And quite likely more bugs.

If this was a particularly difficult API to use, or the spec was very difficult to understand, I could easily see it being good practice to have added more checking to make sure they got things right and the caller did what was expected.

But from there to not trusting openssl at all? No. Again you didn't address my question, if you don't trust it, you certainly aren't going to give it your keys or private data, right? So roll your own crypto?

>
> Sure, you can blame the programmers for misinterpretting the spec,

That or just forgetting about some case where it might write more than they thought, yes. I do.

> but then, that's the issue with most specs,

I'm not sure you can quanitify that, or even point to the spec as the problem in this particular case, do you know it was poorly written? How many other apps which link SSL libraries have similar vulnerability from not reading that part of the spec?

> which leads back to my point, you'll have to end up validating input whenever the spec is incomplete.

That was not your point though, your point was something very different.

>
>
> > "Trust nobody" will _never_ lead to zero bugs, I can assure
> > you of that. Or even fewer bugs, for that matter.
>
> I'm not saying "trust nobody", which is why my post said "good advice". My point is simply that you have
> to distrust far more than you think. Validating UTF8 needs to happen far more than people realize.

It doesn't if you aren't using it as UTF8 though, which I think is Linus's point. You don't need to worry about trust or no trust at all because you don't care that it's valid or not while you're piping it through your data structures and transport protocols and things. Because it's also just a string of bytes, so you use that (and obviously check that is correct and doesn't overflow things when you copy it etc).
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TopicPosted ByDate
Alder Lake and AVX-512me2020/07/11 07:02 AM
  Alder Lake and AVX-512Linus Torvalds2020/07/11 11:41 AM
    informative (NT)blue2020/07/11 12:40 PM
    grumpyMichael S2020/07/11 12:51 PM
      grumpyme2020/07/11 01:27 PM
    area and power cost of AVX-512Michael S2020/07/11 12:58 PM
      area and power cost of AVX-512Anon2020/07/11 04:35 PM
        area and power cost of AVX-512Michael S2020/07/12 04:16 AM
          area and power cost of AVX-512Travis Downs2020/07/12 09:13 AM
      area and power cost of AVX-512Travis Downs2020/07/11 07:19 PM
    Alder Lake and AVX-512Maynard Handley2020/07/11 02:02 PM
      Alder Lake and AVX-512Ungo2020/07/11 05:28 PM
        Alder Lake and AVX-512Maynard Handley2020/07/11 10:16 PM
      Alder Lake and AVX-512Linus Torvalds2020/07/11 06:51 PM
        Alder Lake and AVX-5122020/07/12 01:48 PM
          Alder Lake and AVX-512Michael S2020/07/12 03:07 PM
          HDRAnon32020/07/12 03:42 PM
            HDR10 in Kaby Lake?David Kanter2020/07/12 05:09 PM
              HDR10 in Kaby Lake?Maynard Handley2020/07/12 06:13 PM
                Thanks for the link (NT)David Kanter2020/07/12 06:43 PM
              HDR10 in Kaby Lake?Anon32020/07/13 01:36 AM
        Alder Lake and AVX-512Dummond D. Slow2020/07/12 03:00 PM
        AVX-512 with narrow ex units?m2020/07/23 12:10 PM
          AVX-512 with narrow ex units?Anon2020/07/23 12:53 PM
            AVX-512 with narrow ex units?Paul A. Clayton2020/07/23 06:32 PM
              AVX-512 with narrow ex units?Anon2020/07/23 06:50 PM
                AVX-512 with narrow ex units?Paul A. Clayton2020/07/23 07:45 PM
                  AVX-512 with narrow ex units?Anon2020/07/23 08:15 PM
                    AVX-512 with narrow ex units?Jukka Larja2020/07/24 04:44 AM
                      AVX-512 with narrow ex units?Gabriele Svelto2020/07/24 02:56 PM
                        AVX-512 with narrow ex units?Jouni Osmala2020/07/24 09:22 PM
                          AVX-512 with narrow ex units?Jukka Larja2020/07/25 01:32 AM
                      AVX-512 with narrow ex units?Eugene Nalimov2020/07/25 05:56 PM
                        AVX-512 with narrow ex units?Jukka Larja2020/07/26 01:28 AM
                        AVX-512 with narrow ex units?Gabriele Svelto2020/07/26 02:22 PM
                          AVX-512 with narrow ex units?Jukka Larja2020/07/27 07:00 AM
          AVX-512 with narrow ex units?-.-2020/07/23 06:32 PM
            AVX-512 with narrow ex units?Travis Downs2020/07/24 05:01 PM
    Alder Lake and AVX-512Jörn Engel2020/07/11 04:45 PM
      Alder Lake and AVX-512Chester2020/07/11 05:26 PM
        Alder Lake and AVX-512Jörn Engel2020/07/11 06:22 PM
        Alder Lake and AVX-512Michael S2020/07/12 02:02 AM
        Alder Lake and AVX-512Travis Downs2020/07/13 09:01 PM
      Alder Lake and AVX-512Linus Torvalds2020/07/11 06:54 PM
        Alder Lake and AVX-512Jörn Engel2020/07/11 08:01 PM
          Alder Lake and AVX-512N Owen2020/07/12 12:37 AM
            Alder Lake and AVX-512Michael S2020/07/12 01:48 AM
            Alder Lake and AVX-512anon22020/07/12 07:13 PM
          Alder Lake and AVX-512Travis Downs2020/07/13 09:09 PM
            Alder Lake and AVX-512Jörn Engel2020/07/13 11:42 PM
      Alder Lake and AVX-512Doug S2020/07/11 11:49 PM
        Alder Lake and AVX-512Michael S2020/07/12 01:53 AM
    Alder Lake and AVX-512Travis Downs2020/07/11 07:03 PM
      Alder Lake and AVX-512Veedrac2020/07/11 07:43 PM
        Alder Lake and AVX-512anon22020/07/12 01:31 AM
          Alder Lake and AVX-512Veedrac2020/07/12 04:01 AM
            Alder Lake and AVX-512anon22020/07/12 03:26 PM
              Alder Lake and AVX-512Anon32020/07/12 04:07 PM
                Alder Lake and AVX-512anon22020/07/12 05:39 PM
              Alder Lake and AVX-512Veedrac2020/07/12 04:21 PM
                Alder Lake and AVX-512anon22020/07/12 05:33 PM
                  Alder Lake and AVX-512Veedrac2020/07/12 05:54 PM
                    Alder Lake and AVX-512anon22020/07/12 06:20 PM
                  Alder Lake and AVX-512David Hess2020/07/12 07:32 PM
                    Alder Lake and AVX-512anon22020/07/12 08:41 PM
                Alder Lake and AVX-5122020/07/13 04:02 AM
                  Alder Lake and AVX-512anon22020/07/13 07:25 PM
                    PentiumMMX vs Transmeta's VLIW in hindsight2020/07/19 06:16 AM
                      PentiumMMX vs Transmeta's VLIW in hindsightMaynard Handley2020/07/19 10:47 AM
                      PentiumMMX vs Transmeta's VLIW in hindsightanon22020/07/19 03:24 PM
                      VLIW, OOO, Pairing, and FusionChester2020/07/19 10:16 PM
                        Poulson was in-order (NT)anon22020/07/20 12:20 AM
                        VLIW, OOO, Pairing, and FusionMichael S2020/07/20 12:48 AM
                        Itanium is NOT VLIWHeikki Kultala2020/07/20 02:27 PM
                          Itanium is NOT VLIWAdrian2020/07/20 11:03 PM
                            Itanium crappiness and EPIC - and could EPIC still have something good in it?Heikki Kultala2020/07/21 03:38 AM
                              Itanium crappiness and EPIC - and could EPIC still have something good in it?anon22020/07/21 05:03 AM
                                Itanium crappiness and EPIC - and could EPIC still have something good in it?dmcq2020/07/21 03:27 PM
                              Itanium crappiness and EPIC - and could EPIC still have something good in it?j2020/07/21 08:54 AM
                                Itanium crappiness and EPIC - and could EPIC still have something good in it?Tim McCaffrey2020/07/21 10:30 AM
                              Itanium crappiness and EPIC - and could EPIC still have something good in it?Linus Torvalds2020/07/21 09:13 AM
                                Itanium is not synomym of EPIC. Itanium is just the most common EPIC-style architectureHeikki Kultala2020/07/22 12:31 PM
                                  Turn that on its head?Ray2020/07/22 12:49 PM
                                    Turn that on its head?Anon2020/07/22 01:53 PM
                                    Turn that on its head?Maynard Handley2020/07/22 02:37 PM
                                    Turn that on its head?anon22020/07/22 03:32 PM
                                    Turn that on its head?anon32020/07/22 04:45 PM
                                    Turn that on its head?Heikki Kultala2020/07/23 02:53 AM
                                      Turn that on its head?Anon2020/07/23 10:20 AM
                                        Turn that on its head?Heikki Kultala2020/07/23 11:21 AM
                                          Turn that on its head?Brett2020/07/23 03:26 PM
                                            Turn that on its head?Brett2020/07/24 04:22 AM
                                      Bundling OOO entries does this implicitlyDavid Kanter2020/07/23 10:56 AM
                                      Turn that on its head?anon2020/07/23 11:49 AM
                                  Itanium is not synomym of EPIC. Itanium is just the most common EPIC-style architectureMaynard Handley2020/07/22 02:29 PM
                                  Itanium is not synomym of EPIC. Itanium is just the most common EPIC-style architecturewumpus2020/07/22 03:16 PM
                                    Itanium is not synomym of EPIC. Itanium is just the most common EPIC-style architectureDoug S2020/07/22 10:37 PM
                                      what Intel would have doneMichael S2020/07/23 12:46 AM
                                        what Intel would have doneDoug S2020/07/23 09:52 AM
                                        what Intel would have doneAnon2020/07/23 10:25 AM
                                          what Intel would have doneMichael S2020/07/23 11:23 AM
                                            what Intel would have doneMontaray Jack2020/07/23 06:08 PM
                                    Itanium is not synomym of EPIC. Itanium is just the most common EPIC-style architectureHeikki Kultala2020/07/22 11:47 PM
                                      Itanium is not synomym of EPIC. Itanium is just the most common EPIC-style architecturewumpus2020/07/23 01:46 PM
                                  Itanium is not synomym of EPIC. Itanium is just the most common EPIC-style architectureMichael S2020/07/23 12:56 AM
                                    Itanium is not synomym of EPIC. Itanium is just the most common EPIC-style architectureHeikki Kultala2020/07/23 02:44 AM
                          thanksChester2020/07/24 03:50 PM
      Alder Lake and AVX-512Linus Torvalds2020/07/11 07:46 PM
        Alder Lake and AVX-512never_released2020/07/11 08:54 PM
          Alder Lake and AVX-512Michael S2020/07/12 02:25 AM
        Alder Lake and AVX-512anon22020/07/12 01:36 AM
      Alder Lake and AVX-512Doug S2020/07/12 12:01 AM
      Alder Lake and AVX-512Michael S2020/07/12 02:41 AM
        Alder Lake and AVX-512rwessel2020/07/12 10:17 AM
      Alder Lake and AVX-512-.-2020/08/18 03:24 AM
        Alder Lake and AVX-512Travis Downs2020/08/18 11:04 PM
    Alder Lake and AVX-512Geoff Langdale2020/07/11 07:49 PM
      Alder Lake and AVX-512anon2020/07/11 08:12 PM
      Alder Lake and AVX-512Jörn Engel2020/07/11 08:33 PM
        Alder Lake and AVX-512Michael S2020/07/12 03:00 AM
        Alder Lake and AVX-512Jukka Larja2020/07/12 08:51 AM
          Alder Lake and AVX-512Maynard Handley2020/07/12 10:30 AM
            Alder Lake and AVX-512Jukka Larja2020/07/13 07:43 AM
              Alder Lake and AVX-512Montaray Jack2020/07/23 07:20 PM
                Alder Lake and AVX-512Jukka Larja2020/07/24 04:57 AM
          Alder Lake and AVX-512Jörn Engel2020/07/12 11:35 AM
            Alder Lake and AVX-512Linus Torvalds2020/07/12 12:01 PM
              Alder Lake and AVX-512Linus Torvalds2020/07/12 12:15 PM
                Alder Lake and AVX-512anonymou52020/07/12 01:50 PM
                  Alder Lake and AVX-512Linus Torvalds2020/07/12 02:31 PM
                    Alder Lake and AVX-512anonymou52020/07/12 03:09 PM
                      Alder Lake and AVX-512Linus Torvalds2020/07/12 04:25 PM
                        Alder Lake and AVX-512anonymou52020/07/12 08:34 PM
                          Alder Lake and AVX-512Jose2020/07/13 01:35 AM
                  Alder Lake and AVX-512gallier22020/07/13 02:11 AM
                Alder Lake and AVX-512gallier22020/07/13 02:01 AM
                  Alder Lake and AVX-512Linus Torvalds2020/07/13 11:06 AM
                    Alder Lake and AVX-512Doug S2020/07/13 12:11 PM
                      Alder Lake and AVX-512Brett2020/07/14 02:34 AM
                        Alder Lake and AVX-512Linus Torvalds2020/07/14 09:02 AM
                          Alder Lake and AVX-512Maynard Handley2020/07/14 12:40 PM
                            Alder Lake and AVX-512Michael S2020/07/14 12:48 PM
                            Alder Lake and AVX-512Linus Torvalds2020/07/15 01:37 AM
                              OS X file names normalizationMichael S2020/07/15 02:26 AM
                                OS X file names normalizationSimon Farnsworth2020/07/15 04:16 AM
                                  OS X file names normalizationMichael S2020/07/15 10:51 AM
                                    OS X file names normalizationSimon Farnsworth2020/07/15 12:27 PM
                                OS X file names normalizationDoug S2020/07/15 10:46 AM
                                  OS X file names normalizationMichael S2020/07/15 11:05 AM
                                    OS X file names normalizationLinus Torvalds2020/07/15 12:58 PM
                                      OS X file names normalizationLinus Torvalds2020/07/15 02:21 PM
                                      OS X file names normalizationgallier22020/07/15 11:57 PM
                                    OS X file names normalizationgallier22020/07/15 11:44 PM
                                  OS X file names normalizationRob Thorpe2020/07/15 11:23 AM
                                    OS X file names normalizationDoug S2020/07/15 01:32 PM
                                      OS X file names normalizationMaynard Handley2020/07/15 05:20 PM
                                        OS X file names normalizationLinus Torvalds2020/07/15 08:37 PM
                                          OS X file names normalizationAnon32020/07/16 01:43 PM
                                            OS X file names normalizationDoug S2020/07/16 03:38 PM
                                              OS X file names normalizationLinus Torvalds2020/07/17 12:21 AM
                                                OS X file names normalizationAnon32020/07/17 02:15 AM
                                                  OS X file names normalizationJukka Larja2020/07/17 06:40 AM
                                                OS X file names normalizationgallier22020/07/17 03:19 AM
                                                  OS X file names normalizationLinus Torvalds2020/07/17 09:41 AM
                                                    OS X file names normalizationDummond D. Slow2020/07/17 09:54 AM
                                                      OS X file names normalizationLinus Torvalds2020/07/17 10:16 AM
                                                      OS X file names normalizationSimon Farnsworth2020/07/18 06:12 AM
                                              OS X file names normalizationAnon32020/07/17 02:04 AM
                                                OS X file names normalizationDoug S2020/07/17 10:15 AM
                              Alder Lake and AVX-512Maynard Handley2020/07/15 10:32 AM
                            File Systems and VC ProblemsRob Thorpe2020/07/15 07:24 AM
                    vectorization of utf8Robert David Graham2020/07/13 02:36 PM
                      vectorization of utf8anon22020/07/13 05:07 PM
                        vectorization of utf8Robert David Graham2020/07/13 08:36 PM
                          vectorization of utf8anon22020/07/13 11:23 PM
                        vectorization of utf8Maynard Handley2020/07/13 10:46 PM
                      vectorization of utf8Gabriele Svelto2020/07/15 03:27 AM
                    Alder Lake and AVX-512gallier22020/07/14 01:13 AM
              Alder Lake and AVX-512Jörn Engel2020/07/12 01:29 PM
                Alder Lake and AVX-512Linus Torvalds2020/07/12 02:08 PM
                  Alder Lake and AVX-512Jörn Engel2020/07/12 06:26 PM
                    Alder Lake and AVX-512-.-2020/07/12 07:11 PM
                      Alder Lake and AVX-512Jörn Engel2020/07/12 07:43 PM
            Alder Lake and AVX-512Jukka Larja2020/07/13 08:38 AM
              Alder Lake and AVX-512Jörn Engel2020/07/13 10:10 AM
                Alder Lake and AVX-512Michael S2020/07/13 11:02 AM
                  Alder Lake and AVX-512Jörn Engel2020/07/13 11:22 AM
                    Alder Lake and AVX-512Michael S2020/07/13 12:10 PM
                      Alder Lake and AVX-512Jörn Engel2020/07/13 04:03 PM
                Alder Lake and AVX-512Jukka Larja2020/07/14 06:53 AM
      Alder Lake and AVX-512Linus Torvalds2020/07/11 08:34 PM
        Alder Lake and AVX-512Brett2020/07/11 09:02 PM
          Alder Lake and AVX-512David Hess2020/07/13 12:36 PM
            Alder Lake and AVX-512anonymou52020/07/13 01:01 PM
              Alder Lake and AVX-512Brett2020/07/13 04:19 PM
        Alder Lake and AVX-512Geert2020/07/11 09:36 PM
          AMD's FPUChester2020/07/12 02:28 AM
            Is 3|5 lower than 4?Michael S2020/07/12 03:59 AM
              Is 3|5 lower than 4?Chester2020/07/12 05:54 AM
        Alder Lake and AVX-512Geoff Langdale2020/07/11 11:45 PM
          Alder Lake and AVX-512me2020/07/12 03:44 AM
          Alder Lake and AVX-512Michael S2020/07/12 04:09 AM
          Alder Lake and AVX-512Linus Torvalds2020/07/12 11:35 AM
            ~80% of details are wrong. So what one can expect from conclusions? :( (NT)Michael S2020/07/12 11:57 AM
              ~80% of details are wrong. So what one can expect from conclusions? :(anonymous22020/07/12 12:50 PM
            Alder Lake and AVX-512nobody in particular2020/07/12 12:25 PM
              Alder Lake and AVX-512Linus Torvalds2020/07/12 12:37 PM
                Alder Lake and AVX-512nobody in particular2020/07/12 12:43 PM
                  Alder Lake and AVX-512me2020/07/12 01:32 PM
                    Alder Lake and AVX-512Maynard Handley2020/07/12 08:51 PM
            Alder Lake and AVX-512UnmaskedUnderflow2020/07/12 12:33 PM
            AVX-512 vs SVE2-.-2020/07/12 06:22 PM
              AVX-512 vs SVE2noko2020/07/13 12:12 AM
                AVX-512 vs SVE2-.-2020/07/13 04:00 AM
            Alder Lake and AVX-512Geoff Langdale2020/07/12 08:18 PM
              Could you please stop top-posting (NT)Jukka Larja2020/07/13 08:45 AM
              Alder Lake and AVX-512Romain Dolbeau2020/07/15 01:00 AM
            Alder Lake and AVX-512Spiteful Sprites2020/07/13 04:59 AM
              Alder Lake and AVX-512nobody in particular2020/07/13 09:12 AM
                Alder Lake and AVX-512Spiteful Sprites2020/07/13 04:21 PM
                  Alder Lake and AVX-512Jouni Osmala2020/07/14 02:55 AM
                  RISC-V & commercial support (was: Alder Lake and AVX-512)Romain Dolbeau2020/07/15 01:11 AM
                    RISC-V & commercial support (was: Alder Lake and AVX-512)Romain Dolbeau2020/07/15 01:13 AM
              Alder Lake and AVX-512Linus Torvalds2020/07/13 11:10 AM
            AVX-512/SVE & HPC (was: Alder Lake and AVX-512)Romain Dolbeau2020/07/14 10:09 AM
              AVX-512/SVE & HPC (was: Alder Lake and AVX-512)anon2020/07/14 10:53 AM
                AVX-512/SVE & HPC (was: Alder Lake and AVX-512)Romain Dolbeau2020/07/14 11:27 AM
                  AVX-512/SVE & HPC (was: Alder Lake and AVX-512)Maynard Handley2020/07/14 12:52 PM
                  AVX-512/SVE & HPC (was: Alder Lake and AVX-512)Doug S2020/07/14 01:43 PM
                  AVX-512/SVE & HPC (was: Alder Lake and AVX-512)anon2020/07/14 03:01 PM
              AVX-512/SVE & HPC (was: Alder Lake and AVX-512)Linus Torvalds2020/07/14 12:00 PM
                AVX-512/SVE & HPC (was: Alder Lake and AVX-512)Romain Dolbeau2020/07/14 11:42 PM
                  Configurable cache line size?Doug S2020/07/15 10:56 AM
                    Configurable cache line size?dmcq2020/07/15 03:43 PM
                    Configurable cache line size?Romain Dolbeau2020/07/15 11:37 PM
                    Configurable cache line size?NoSpammer2020/07/16 01:27 AM
                    Configurable cache line size?Pixie2020/07/16 10:55 AM
                      Configurable cache line size?Etienne2020/07/17 01:03 AM
                        Configurable cache line size?Hugo Décharnes2020/07/18 02:11 AM
                  Cache line sizeMark Roulo2020/07/15 06:10 PM
                    Cache line sizeanon2020/07/15 06:46 PM
                  AVX-512/SVE & HPC (was: Alder Lake and AVX-512)Gabriele Svelto2020/07/17 02:30 AM
                    AVX-512/SVE & HPC (was: Alder Lake and AVX-512)dmcq2020/07/17 03:34 AM
                      AVX-512/SVE & HPC (was: Alder Lake and AVX-512)zArchJon2020/07/17 01:16 PM
            Macro-instructions to the rescue2020/07/24 12:56 PM
              Some fundamentals haven't changedChester2020/07/24 03:59 PM
                Some fundamentals haven't changed2020/07/24 04:24 PM
                  Some fundamentals haven't changeddmcq2020/07/25 07:58 AM
                    Some fundamentals haven't changed2020/07/25 11:05 AM
                    Some fundamentals haven't changedBrett2020/07/25 02:16 PM
                      Some fundamentals haven't changedBrett2020/07/25 02:27 PM
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                        What belt is.Michael S2020/07/26 10:00 AM
                          What belt is.Brett2020/07/26 11:46 PM
                            What belt is.Michael S2020/07/27 12:52 AM
                              What belt is.Brett2020/07/27 07:25 AM
                                What belt is.Doug S2020/07/27 01:31 PM
                                  What belt is.Andrew Clough2020/07/28 06:11 AM
                                    What belt is.dmcq2020/07/28 08:17 AM
                                      Mill Compiler still MIA?Geoff Langdale2020/07/28 05:04 PM
                                        If they release the compiler, how they will blame the still-in-development compiler for the lacklust (NT)Anon2020/07/28 05:20 PM
                                          If they release the compiler, how they will blame the still-in-development compiler for the lacklustAnon2020/07/28 05:20 PM
                                        Apparently they're busy writing a kernel...Anon2020/07/29 03:03 AM
                                          Apparently they're busy writing a kernel...dmcq2020/07/29 03:39 AM
                        What belt is.2020/07/26 11:44 AM
                          What belt is.anonymous22020/07/26 12:02 PM
                            What belt is.Doug S2020/07/26 03:26 PM
                              What belt is.2020/07/26 04:02 PM
        gooduseruser2020/07/12 10:06 AM
      Alder Lake and AVX-512-.-2020/07/11 09:03 PM
        Alder Lake and AVX-512-.-2020/07/11 09:07 PM
      Alder Lake and AVX-512j2020/07/13 12:29 AM
        Alder Lake and AVX-512Michael S2020/07/13 01:12 AM
          Alder Lake and AVX-512j2020/07/13 02:58 AM
            Alder Lake and AVX-512dmcq2020/07/13 04:53 PM
              Alder Lake and AVX-512Michael S2020/07/14 12:57 AM
                Alder Lake and AVX-512Maynard Handley2020/07/14 10:26 AM
                Alder Lake and AVX-512dmcq2020/07/14 12:33 PM
                  Alder Lake and AVX-512dmcq2020/07/14 03:43 PM
                    Alder Lake and AVX-512Michael S2020/07/15 12:55 AM
                      Alder Lake and AVX-512dmcq2020/07/15 02:19 AM
                        Alder Lake and AVX-512Michael S2020/07/15 02:34 AM
                          Alder Lake and AVX-512dmcq2020/07/15 03:03 AM
                            Alder Lake and AVX-512Michael S2020/07/15 09:43 AM
                              Alder Lake and AVX-512dmcq2020/07/15 09:54 AM
                                Alder Lake and AVX-512Michael S2020/07/15 11:35 AM
                                  Alder Lake and AVX-512dmcq2020/07/15 03:18 PM
                                    GV100 + POWER9Michael S2020/07/16 01:17 AM
                                      GV100 + POWER9dmcq2020/07/16 08:58 AM
                                        GV100 + POWER9dmcq2020/07/16 09:10 AM
                        Alder Lake and AVX-512dmcq2020/07/15 02:48 AM
    Alder Lake and AVX-512o2020/07/12 03:08 AM
    Alder Lake and AVX-5122020/07/12 11:07 AM
      Alder Lake and AVX-5122020/07/12 11:32 AM
      Alder Lake and AVX-512Linus Torvalds2020/07/12 11:39 AM
        Alder Lake and AVX-5122020/07/12 12:47 PM
        Alder Lake and AVX-512Michael S2020/07/12 01:18 PM
          x87 crapHeikki Kultala2020/07/12 01:30 PM
            x87 crapMichael S2020/07/12 01:37 PM
              x87 crapHeikki kultala2020/07/12 02:11 PM
                x87 crapMichael S2020/07/12 02:50 PM
                  Sparc and PA-RISC vs pentium FP performanceHeikki Kultala2020/07/13 01:14 AM
                    Sparc and PA-RISC vs pentium FP performanceanonymous22020/07/13 10:48 AM
          Alder Lake and AVX-512Doug S2020/07/12 03:33 PM
            Alder Lake and AVX-512Michael S2020/07/12 04:10 PM
    Alder Lake and AVX-512David Kanter2020/07/12 05:01 PM
      Alder Lake and AVX-512anon2020/07/12 05:40 PM
      ~0% of users do much FP outside of GPUs for games (NT)anonymous22020/07/12 05:47 PM
        ~0% of users do much FP outside of GPUs for gamesMaynard Handley2020/07/13 12:26 AM
        not trueChester2020/07/13 12:37 AM
          not trueMichael S2020/07/13 01:29 AM
            not trueChester2020/07/13 01:59 AM
              not trueanonymous22020/07/13 10:32 AM
                not trueMaynard Handley2020/07/13 02:30 PM
                  not trueChester2020/07/14 05:47 AM
            not trueDoug S2020/07/13 12:30 PM
              not trueAnon2020/07/13 01:16 PM
                not trueMaynard Handley2020/07/13 02:39 PM
              not trueMaynard Handley2020/07/13 02:38 PM
          not trueLinus Torvalds2020/07/13 11:27 AM
            not trueDummond D. Slow2020/07/13 02:10 PM
              not trueMaynard Handley2020/07/13 02:49 PM
                not trueDummond D. Slow2020/07/13 03:38 PM
            not true (about FP, not avx-512)Chester2020/07/17 10:37 AM
  Alder Lake and AVX-512Travis Downs2020/07/11 06:45 PM
    Alder Lake and AVX-512-.-2020/07/11 06:57 PM
      Alder Lake and AVX-512-.-2020/07/12 04:26 PM
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