SMT is a dodo bird

Article: Silvermont, Intel's Low Power Architecture
By: Stubabe (Stubabe.delete@this.nospam.com), May 14, 2013 12:09 pm
Room: Moderated Discussions
RichardC (tich.delete@this.pobox.com) on May 11, 2013 4:39 pm wrote:
> Ricardo B (ricardo.b.delete@this.xxxxx.xx) on May 11, 2013 8:07 am wrote:
> > SMT is not really a compromise between client vs server, but on application types.
> >
> > Modern OoO CPU cores have massive execution resources to squeeze
> > out every last inch of single thread performance.
>
> Up to a point. But if you take out the extra logic and registers
> needed to support SMT, you'd be able to clock the core a little faster.
> Maybe not *much* faster, but a little. SMT can't possibly be free.
> And some workloads don't benefit from it.
>
And some do, so what? Why not microcode all but the top 5% of instructions -see how far that gets you...

Also, I don't see a convincing case for a sans-SMT chip being any faster at all. Most resources of SMT are really just sharing of common OoO resources so those resources can be redirected to single threaded workloads. Replicated resources can be clock/power gated when not in use so add little if anything to single thread power budgets.
In fact, the situation is even better today since both SMT resource reuse and clock/power gateing are technologies that have steadily improved over the recent generations of Intel CPUs. For example, the micro-op queue in Ivy bridge is now no longer statically replicated and the full capacity can be made available to the sole active logical CPU thread. So I really don't see SMT adding anything more than a rounding error to the power budget when a single logical CPU is active. So unless you are suggesting that SMT related hardware gate delays are limiting clock speeds, something I view as very unlikely since current chips are clearly power limited.

As for die area when Intel introduced SMT in the P4 they claimed it added less than 5% to the die - it is likely to be far less now. Is throwing that (very slight) die area at adding another core to chip really going to help in situations that SMT wouldn't?
Multi-core has diminishing returns too: hardware engineers like to complain about serialisation delays hurting the scaling of their designs so we need multi-core to use all those transistors. Unfortunately, they seem to conveniently forget that serialisation hurts software scalability too. Low IPC threads on the same physical core will see much lower synchronisation overheads than those running on different cores, which may benefit sufficiently fine-grained threading (fine grained is often needed to fully extract parallelism in non trivial cases) more than the cost of sharing a physical core. Certainly, there are threading strategies that can only be conceived (such as prefetch threads) in an SMT like execution environment.

OK what about using that 5% to make a single fatter core?
Single thread performance is dependant to both clock speed and IPC. The increasing the former carries a significant power overhead as it requires more pipeline stages or more voltage. It also increases relative memory latency which in turn requires larger OoO windows and load/store queues etc. to hide it. To increase IPC you need wider decode and execute bandwidth AND OoO windows and load/store queues etc. With Haswell Intel now has an 8-issue execution core but they only claim a typical IPC increase of up to 10% from increasing the ALU issue width 25% and significantly improving the memory subsystem. Single thread performance is stagnating and not for want of trying.

So we can keep throwing more ALUs, memory ports, or even more cores on a chip while trying to eek out slightly higher top turbo speed bins all for diminishing gains in a diminishing % of software. But keeping/adding a feature that if not free is as close to free as makes no odds is an issue because it doesn't help all software? The whole point of SMT is it borrows the very mechanisms that we need for OoO work in the 1st place (renaming, superscalar, dependency tracking) so why is it so hard to believe it comes at near zero cost (beyond extra permanent register state) on a complex OoO chip? It's why I believe SMT was a bad fit in the original Atom as it added complexity that wasn't there, but on the other hand SMT in the Atom was just a crutch to prop up a poor design.

The assumption here is that without SMT Intel might have invested more in single threaded performance. I would say the opposite, since without throughput workloads exploiting wide chips via SMT I doubt Intel's architects could have justified wide power efficient designs like Sandybridge onwards since the gains would have been to small in too many cases. But with SMT they can continue to throw resources at fast fat cores (as it befits more than just one set of corner cases) rather than just giving us a die full of gutless cores and basically just another GPU.
< Previous Post in ThreadNext Post in Thread >
TopicPosted ByDate
Silvermont architecture in-depth articleDavid Kanter2013/05/06 02:30 PM
  Silvermont architecture in-depth articleSHK2013/05/06 03:19 PM
    Silvermont architecture in-depth articletianbing2013/05/18 09:08 PM
      Silvermont architecture in-depth articleKlimax2013/05/18 11:04 PM
        Silvermont architecture in-depth articleEduardoS2013/05/19 12:20 AM
          Silvermont architecture in-depth articleKlimax2013/05/19 02:34 AM
            Silvermont architecture in-depth articleMichael S2013/05/19 04:02 AM
              Silvermont architecture in-depth articleKlimax2013/05/19 04:36 AM
                Silvermont architecture in-depth articleMichael S2013/05/19 05:42 AM
                  Silvermont architecture in-depth articleMichael S2013/05/19 05:45 AM
                Silvermont architecture in-depth articleWilco2013/05/19 06:00 AM
                  Silvermont architecture in-depth articleMichael S2013/05/19 06:30 AM
                    Silvermont architecture in-depth articleDavid Kanter2013/05/19 01:28 PM
      Silvermont architecture in-depth articleRicardo B2013/05/19 07:20 AM
        Silvermont architecture in-depth articleLinus Torvalds2013/05/19 11:24 AM
          Silvermont architecture in-depth articleMichael S2013/05/19 11:39 AM
            Silvermont architecture in-depth articleLinus Torvalds2013/05/19 12:19 PM
              Silvermont architecture in-depth articleanon2013/05/19 10:11 PM
                Silvermont architecture in-depth articleVincent Diepeveen2013/05/21 08:34 AM
                I am not sure I agreeDavid Kanter2013/05/21 01:54 PM
                  I am not sure I agreeanon2013/05/21 04:54 PM
                    I am not sure I agreebakaneko2013/05/22 03:42 AM
                Silvermont architecture in-depth articlebakaneko2013/05/22 03:44 AM
          Silvermont architecture in-depth articleRicardo B2013/05/19 04:17 PM
        Silvermont architecture in-depth articleMaynard Handley2013/05/19 05:44 PM
  Silvermont architecture in-depth articlenone2013/05/06 03:32 PM
    Another use for huge page TLB entriesPaul A. Clayton2013/05/06 09:27 PM
      Another use for huge page TLB entriesanon2013/05/06 09:35 PM
        Lack of paging structure cache informationPaul A. Clayton2013/05/07 06:51 AM
      Another use for huge page TLB entriesMaynard Handley2013/05/14 05:49 PM
        Another use for huge page TLB entriesUngo2013/05/15 12:15 PM
          Another use for huge page TLB entriesMaynard Handley2013/05/15 03:33 PM
            Another use for huge page TLB entriesUngo2013/05/16 03:54 PM
    Silvermont architecture in-depth articleanon2013/05/07 12:11 AM
      Silvermont architecture in-depth articlenone2013/05/07 02:27 AM
        Silvermont architecture in-depth articleJames2013/05/07 05:18 AM
  Silvermont architecture in-depth articleMichael S2013/05/06 03:59 PM
    Silvermont architecture in-depth articleDavid Kanter2013/05/06 05:48 PM
      Silvermont architecture in-depth articleMichael S2013/05/07 12:49 AM
        Silvermont architecture in-depth articleWilco2013/05/07 05:37 AM
          Silvermont architecture in-depth articleMichael S2013/05/07 05:49 AM
            Silvermont architecture in-depth articleWilco2013/05/07 08:17 AM
              Silvermont architecture in-depth articleExophase2013/05/07 09:00 AM
                Silvermont architecture in-depth articleExophase2013/05/07 09:05 AM
                  Resources allocated for different templatesDavid Kanter2013/05/07 09:38 AM
                  Silvermont architecture in-depth articleEduardoS2013/05/07 10:18 AM
  Silvermont architecture in-depth articleEduardoS2013/05/06 06:31 PM
    Silvermont architecture in-depth articleDavid Kanter2013/05/06 07:26 PM
  Some editing suggestionsPaul A. Clayton2013/05/06 09:00 PM
    Some editing suggestionsGabriele Svelto2013/05/08 05:27 AM
      Some editing suggestionsEduardoS2013/05/08 08:27 AM
        Original T series more web-oriented?Paul A. Clayton2013/05/08 11:01 AM
    SMT is a dodo birdBrett2013/05/09 08:26 PM
      SMT is a dodo birdExophase2013/05/09 08:57 PM
      SMT is a dodo birdDavid Kanter2013/05/10 12:34 AM
        SMT is a dodo birdMichael S2013/05/10 03:08 AM
        SMT is a dodo birdGabriele Svelto2013/05/10 03:45 AM
          SMT is a dodo birdRichardC2013/05/11 07:02 AM
            SMT is a dodo birdRicardo B2013/05/11 08:07 AM
              SMT is a dodo birdRichardC2013/05/11 04:39 PM
                SMT is a dodo birdRicardo B2013/05/11 06:55 PM
                  SMT is a dodo birdRichardC2013/05/12 12:36 AM
                    quad-core since Nov 2006RichardC2013/05/12 06:41 AM
                      quad-core since Nov 2006mpx2013/05/13 01:34 AM
                        quad-core since Nov 2006RichardC2013/05/13 03:48 AM
                          quad-core since Nov 2006Jukka Larja2013/05/14 11:34 AM
                            quad-core since Nov 2006RichardC2013/05/14 12:23 PM
                            quad-core since Nov 2006RichardC2013/05/14 12:24 PM
                    SMT is a dodo birdRicardo B2013/05/12 05:48 PM
                      * browsers are moving to a process per tab model (NT)Ricardo B2013/05/12 05:54 PM
                        * browsers are moving to a process per tab modelDoug S2013/05/12 08:27 PM
                          * browsers are moving to a process per tab modelMichael S2013/05/13 12:43 AM
                        * browsers are moving to a process per tab modelMaynard Handley2013/05/13 06:52 PM
                          * browsers are moving to a process per tab modelgallier22013/05/14 01:31 AM
                            * browsers are moving to a process per tab modelDoug S2013/05/14 11:58 AM
                          * browsers are moving to a process per tab modelRichardC2013/05/14 03:54 AM
                            * browsers are moving to a process per tab modelRicardo B2013/05/14 05:06 AM
                              * browsers are moving to a process per tab modelMichael S2013/05/14 05:45 AM
                                * browsers are moving to a process per tab modelRicardo B2013/05/14 07:48 AM
                                How about anti-virus, security, utility, and encryption cpu usage and delays?David Ball2013/05/14 07:48 AM
                                  How about anti-virus, security, utility, and encryption cpu usage and delays?RichardC2013/05/14 10:34 AM
                                * browsers are moving to a process per tab modelUngo2013/05/14 04:50 PM
                      SMT is a dodo birdEduardoS2013/05/12 07:21 PM
                        SMT is a dodo birdJouni Osmala2013/05/12 09:57 PM
                        SMT is a dodo birdRicardo B2013/05/13 02:40 AM
                          SMT is a dodo birdMichael S2013/05/13 03:50 AM
                            SMT is a dodo birdRicardo B2013/05/13 06:13 AM
                    SMT is a dodo birdPatrick Chase2013/05/13 08:33 PM
                      SMT is a dodo birdRichardC2013/05/14 10:38 AM
                        SMT is a dodo birdRicardo B2013/05/14 11:15 AM
                          SMT is a dodo birdRicardo B2013/05/14 11:18 AM
                            SMT is a dodo birdRichardC2013/05/14 12:09 PM
                              SMT is a dodo birdRicardo B2013/05/14 12:50 PM
                                SMT is a dodo birdRichardC2013/05/14 01:09 PM
                                  SMT is a dodo birdRicardo B2013/05/14 02:47 PM
                                  SMT is a dodo birdMaynard Handley2013/05/14 05:02 PM
                                    SMT is a dodo birdRichardC2013/05/14 05:40 PM
                                      SMT is a dodo birdBrendan2013/05/15 02:26 AM
                                        SMT is a dodo birdRichardC2013/05/15 03:14 AM
                                        SMT is a dodo birdRichardC2013/05/15 03:20 AM
                                          SMT is a dodo birdBrendan2013/05/15 04:10 AM
                                            SMT is a dodo birdGabriele Svelto2013/05/15 06:40 AM
                                              SMT is a dodo birdBrendan2013/05/15 07:29 AM
                                            SMT is a dodo birdRichardC2013/05/15 07:29 AM
                                              SMT is a dodo birdRicardo B2013/05/15 09:16 AM
                                                SMT is a dodo birdRichardC2013/05/15 11:06 AM
                                                  SMT is a dodo birdRicardo B2013/05/15 12:19 PM
                                            SMT is a dodo birdEduardoS2013/05/15 04:51 PM
                                              SMT is a dodo birdBrendan2013/05/16 12:29 AM
                                                The Problem With ThreadsRichardC2013/05/16 06:57 AM
                                                  The Problem With Threadsanon2013/05/16 08:55 AM
                                                  The Problem With ThreadsMaynard Handley2013/05/16 10:22 AM
                                                  The Problem With ThreadsBrendan2013/05/16 11:54 AM
                                                    The Problem With ThreadsRichardC2013/05/16 12:19 PM
                                                      The Problem With ThreadsSymmetry2013/05/16 01:14 PM
                                                        The Problem With ThreadsMaynard Handley2013/05/16 02:50 PM
                                                          The Problem With ThreadsSymmetry2013/05/16 04:22 PM
                                                            The Problem With ThreadsRichardC2013/05/17 07:22 AM
                                                        The Problem With ThreadsRichardC2013/05/16 05:49 PM
                                                      The Problem With ThreadsRicardo B2013/05/16 02:12 PM
                                                        The Problem With ThreadsRichardC2013/05/17 07:49 AM
                                                    The Problem With ThreadsBrendan2013/05/17 03:03 AM
                                                SMT is a dodo birdKoby2013/05/16 06:58 AM
                                          SMT is a dodo birdmpx2013/05/15 02:09 PM
                                            SMT is a dodo birdEduardoS2013/05/15 04:55 PM
                               4C/4T 4.0GHz was significantly faster than 4C/4T 3.8GHz??Mark Roulo2013/05/14 05:37 PM
                                 4C/4T 4.0GHz was significantly faster than 4C/4T 3.8GHz??RichardC2013/05/14 05:54 PM
                                  Thanks. Mark Roulo2013/05/14 06:05 PM
                                   4C/4T 4.0GHz was significantly faster than 4C/4T 3.8GHz??Exophase2013/05/14 08:10 PM
                                     More tests of HT and gamesExophase2013/05/14 08:24 PM
                                       More tests of HT and gamesRichardC2013/05/15 03:26 AM
                                         More tests of HT and gamesExophase2013/05/15 06:43 AM
                                           More tests of HT and gamesMichael S2013/05/15 12:35 PM
                                             More tests of HT and gamesRicardo B2013/05/15 01:16 PM
                                               More tests of HT and gamesRicardo B2013/05/15 01:19 PM
                                               More tests of HT and gamesJukka Larja2013/05/16 06:12 AM
                                         More tests of HT and gamesStubabe2013/05/16 12:24 PM
                                       More tests of HT and gamesmpx2013/05/19 02:56 AM
                          SMT is a dodo birdAction_Parsnip2013/05/14 01:28 PM
                          SMT is a dodo birdJukka Larja2013/05/15 09:02 AM
                        SMT is a dodo birdPatrick Chase2013/05/17 09:43 AM
                          SMT is a dodo birdJouni Osmala2013/05/17 10:27 AM
                          SMT is a dodo birdBrett2013/05/17 07:26 PM
                The cost of multithreadingPaul A. Clayton2013/05/11 07:51 PM
                  The cost of multithreadingRichardC2013/05/12 12:20 AM
                SMT benefits high end desktop.Jouni Osmala2013/05/11 10:04 PM
                SMT is a dodo birdHeikki Kultala2013/05/12 01:02 AM
                  SMT is a dodo birdRichardC2013/05/12 06:57 AM
                SMT is a dodo birdJukka Larja2013/05/12 03:33 AM
                SMT is a dodo birdStubabe2013/05/14 12:09 PM
                  SMT is a dodo birdRichardC2013/05/14 01:43 PM
                    SMT is a dodo birdRicardo B2013/05/14 03:00 PM
                      SMT is a dodo birdRichardC2013/05/14 06:27 PM
                        SMT is a dodo birdRicardo B2013/05/15 03:50 AM
                          SMT is a dodo birdRichardC2013/05/15 08:53 AM
                            SMT is a dodo birdRicardo B2013/05/15 09:31 AM
                              SMT is a dodo birdRichardC2013/05/15 11:13 AM
                                SMT is a dodo birdRicardo B2013/05/15 12:43 PM
                                  SMT is a dodo birdRichardC2013/05/15 01:15 PM
                                    SMT is a dodo birdRicardo B2013/05/15 01:40 PM
                                      SMT is a dodo birdRichardC2013/05/15 02:00 PM
                                        SMT is a dodo birdMaynard Handley2013/05/15 03:55 PM
                                        SMT is a dodo birdJouni Osmala2013/05/16 03:16 AM
                    SMT is a dodo birdStubabe2013/05/16 11:54 AM
                  Using the available die areaDoug S2013/05/14 05:51 PM
                    Using the available die areaRicardo B2013/05/15 04:15 AM
                      Using the available die areaStubabe2013/05/16 11:26 AM
                        Using the available die areaRicardo B2013/05/16 02:05 PM
      SMT is a dodo birdmpx2013/05/10 11:51 PM
        SMT is a dodo birdFoo_2013/05/11 05:21 AM
          SMT is a dodo birdEduardoS2013/05/11 09:28 AM
        SMT is a dodo birdDoug S2013/05/11 10:49 AM
          SMT is a dodo birdmpx2013/05/12 12:04 PM
            SMT is a dodo birdLinus Torvalds2013/05/12 02:22 PM
              Mediocre SMT implementations?Paul A. Clayton2013/05/12 05:06 PM
              SMT is a dodo birdmpx2013/05/12 06:13 PM
                Thanks for the actual research effort! (NT)Paul A. Clayton2013/05/13 05:43 AM
              How Does Silvermont Compare To A15?Ashraf Eassa2013/05/15 11:59 AM
                How Does Silvermont Compare To A15?Maynard Handley2013/05/15 04:08 PM
                  How Does Silvermont Compare To A15?TREZA2013/05/16 03:17 AM
                How Does Silvermont Compare To A15?Wilco2013/05/15 05:37 PM
                  How Does Silvermont Compare To A15?David Kanter2013/05/17 08:00 AM
                    How Does Silvermont Compare To A15?Exophase2013/05/17 08:52 AM
                      How Does Silvermont Compare To A15?David Kanter2013/05/17 09:38 PM
                        How Does Silvermont Compare To A15?Exophase2013/05/17 10:33 PM
                          FYI Tegra4 has A15 in it also, so 3 devices (NT)S. Rao2013/05/22 12:59 AM
                            FYI Tegra4 has A15 in it also, so 3 devicesMichael S2013/05/22 03:21 AM
                              FYI Tegra4 has A15 in it also, so 3 devicesS. Rao2013/05/22 10:06 AM
                        How Does Silvermont Compare To A15?Wilco2013/05/19 05:19 AM
                          How Does Silvermont Compare To A15?Patrick Chase2013/05/20 09:29 AM
                            Virtualization was also mostly server-orientedPaul A. Clayton2013/05/20 02:37 PM
                    How Does Silvermont Compare To A15?Wilco2013/05/17 12:22 PM
                      How Does Silvermont Compare To A15?David Kanter2013/05/17 09:29 PM
                        How Does Silvermont Compare To A15?Exophase2013/05/17 10:41 PM
                          How Does Silvermont Compare To A15?Gabriele Svelto2013/05/18 05:48 AM
                            How Does Silvermont Compare To A15?Exophase2013/05/18 09:57 AM
                          How Does Silvermont Compare To A15?David Kanter2013/05/18 08:02 AM
                            How Does Silvermont Compare To A15?Exophase2013/05/18 10:07 AM
                            How Does Silvermont Compare To A15?Wilco2013/05/18 12:04 PM
                        How Does Silvermont Compare To A15?anon2013/05/17 11:03 PM
                        How Does Silvermont Compare To A15?Maynard Handley2013/05/19 06:27 PM
                          How Does Silvermont Compare To A15?David Kanter2013/05/20 05:30 PM
                            How Does Silvermont Compare To A15?Exophase2013/05/20 06:06 PM
                              big.LITTLE and low-leakage processesPatrick Chase2013/05/20 09:26 PM
                                big.LITTLE and low-leakage processesExophase2013/05/20 09:56 PM
                                  big.LITTLE and low-leakage processesPatrick Chase2013/05/20 10:16 PM
                      Clock frequency comparisons and processDavid Kanter2013/05/18 08:50 AM
                        Hard cores from ARM?Patrick Chase2013/05/19 12:38 PM
                  Architecture isn't everythingPatrick Chase2013/05/17 05:49 PM
                    Architecture isn't everythingBjörn R. Björnsson2013/05/17 06:34 PM
                      Architecture isn't everythingaaron spink2013/05/17 08:55 PM
                        Load delay slots need not be a problemPaul A. Clayton2013/05/18 05:41 AM
                          Load delay slots need not be a problemExophase2013/05/18 10:33 AM
                            Did cache misses disrupt load delay?Paul A. Clayton2013/05/18 03:48 PM
                              Did cache misses disrupt load delay?Exophase2013/05/18 07:45 PM
                            TI C6x load delaysPatrick Chase2013/05/19 04:19 PM
                              Hexagon documentation?David Kanter2013/05/23 11:19 AM
                                Hexagon documentation?Exophase2013/05/23 11:45 AM
                                Hexagon documentation?Patrick Chase2013/05/23 03:55 PM
                        Architecture isn't everythingLinus Torvalds2013/05/18 11:31 AM
                How Does Silvermont Compare To A15?David Kanter2013/05/17 08:12 AM
                  How Does Silvermont Compare To A15?Ashraf Eassa2013/05/18 09:06 PM
                    How Does Silvermont Compare To A15?Ashraf Eassa2013/05/18 09:06 PM
            SMT is a dodo birdDoug S2013/05/12 08:22 PM
              SMT is a dodo birdGabriele Svelto2013/05/13 12:53 AM
                SMT is a dodo birdMichael S2013/05/13 01:13 AM
              SMT is a dodo birdMichael S2013/05/13 01:30 AM
  Silvermont architecture in-depth articlerwessel2013/05/06 09:04 PM
    Two different RSBsPaul A. Clayton2013/05/06 09:35 PM
  Decode cacheanon2013/05/07 04:53 AM
    Decode cachenone2013/05/07 04:59 AM
      Decode cacheanon2013/05/07 06:08 AM
    There is also predecode information in IcachePaul A. Clayton2013/05/07 07:18 AM
      There is also predecode information in IcacheMaynard Handley2013/05/13 09:23 PM
    Decode cachenona2013/05/07 11:25 PM
  Silvermont architecture in-depth articlekashing ho2013/05/07 12:18 PM
    Silvermont architecture in-depth articleEduardoS2013/05/07 01:41 PM
      Silvermont architecture in-depth articleLinus Torvalds2013/05/07 03:07 PM
        Silvermont architecture in-depth articleEduardoS2013/05/07 07:18 PM
          Silvermont architecture in-depth articleY2013/05/08 04:23 AM
  Silvermont architecture in-depth articleChris Rodinis2013/05/22 03:56 PM
    Silvermont architecture in-depth articleDavid Kanter2013/05/23 01:17 AM
  Silvermont architecture in-depth articleSebastian Soeiro2013/05/28 09:00 AM
    Silvermont architecture in-depth articleDavid Kanter2013/05/28 12:14 PM
      Silvermont architecture in-depth articleSebastian Soeiro2013/05/28 12:45 PM
        Silvermont architecture in-depth articleRicardo B2013/05/28 03:58 PM
          Silvermont architecture in-depth articleSebastian Soeiro2013/05/28 04:27 PM
            Silvermont architecture in-depth articleRicardo B2013/05/29 02:41 PM
              Silvermont architecture in-depth articleSebastian Soeiro2013/05/29 10:16 PM
                Silvermont architecture in-depth articleRicardo B2013/05/30 08:05 AM
                  Silvermont architecture in-depth articleSebastian Soeiro2013/05/30 09:48 AM
                    Silvermont architecture in-depth articleRicardo B2013/05/30 11:18 AM
                      Silvermont architecture in-depth articleSebastian Soeiro2013/05/30 01:13 PM
                        Silvermont architecture in-depth articleSebastian Soeiro2013/05/30 03:39 PM
                          Silvermont architecture in-depth articleRicardo B2013/05/30 04:43 PM
                            Silvermont architecture in-depth articleSebastian Soeiro2013/05/30 07:52 PM
                              Silvermont architecture in-depth articleRicardo B2013/05/31 04:34 AM
                                Silvermont architecture in-depth articleSebastian Soeiro2013/05/31 06:59 AM
                                  Silvermont architecture in-depth articleKlimax2013/05/31 07:15 AM
                                    Silvermont architecture in-depth articleSebastian Soeiro2013/05/31 08:01 AM
                                      Silvermont architecture in-depth articlerwessel2013/05/31 10:59 AM
                                        Silvermont architecture in-depth articleSebastian Soeiro2013/05/31 02:26 PM
                                          Silvermont architecture in-depth articlerwessel2013/05/31 03:11 PM
                                            Silvermont architecture in-depth articleSebastian Soeiro2013/06/03 09:51 AM
                                              Silvermont architecture in-depth articlerwessel2013/06/03 10:45 AM
                                              Silvermont architecture in-depth articlegallier22013/06/04 02:06 AM
                                                Silvermont architecture in-depth articleSebastian Soeiro2013/06/08 08:30 AM
                                  Silvermont architecture in-depth articleRicardo B2013/05/31 12:22 PM
                                    Silvermont architecture in-depth articleSebastian Soeiro2013/05/31 02:22 PM
                                      Silvermont architecture in-depth articleDavid Kanter2013/05/31 03:08 PM
                                        Silvermont architecture in-depth articleSebastian Soeiro2013/05/31 09:04 PM
                                          Silvermont architecture in-depth articlerwessel2013/05/31 09:53 PM
                                            Silvermont architecture in-depth articleSebastian Soeiro2013/05/31 10:59 PM
                                              Silvermont architecture in-depth articleDavid Kanter2013/06/02 03:02 AM
                                                Silvermont architecture in-depth articleSebastian Soeiro2013/06/02 08:24 AM
                                                  Silvermont architecture in-depth articleDavid Kanter2013/06/02 11:10 PM
                                                    Silvermont architecture in-depth articleSebastian Soeiro2013/06/03 08:25 AM
                                              Silvermont architecture in-depth articlerwessel2013/06/03 12:09 AM
                                                Silvermont architecture in-depth articleSebastian Soeiro2013/06/03 09:59 AM
                                                  Silvermont architecture in-depth articlerwessel2013/06/03 10:51 AM
                                                    Silvermont architecture in-depth articleSebastian Soeiro2013/06/04 06:31 PM
                                      Silvermont architecture in-depth articlerwessel2013/05/31 03:20 PM
                                        Silvermont architecture in-depth articleSebastian Soeiro2013/05/31 06:59 PM
                                          Silvermont architecture in-depth articlerwessel2013/05/31 09:02 PM
                                            Silvermont architecture in-depth articleSebastian Soeiro2013/05/31 09:13 PM
                                            Quibbling on multithreadingPaul A. Clayton2013/06/01 10:11 AM
                                              Quibbling on multithreadingrwessel2013/06/02 11:54 PM
                                                Exploiting for SMT was my "contribution"Paul A. Clayton2013/06/03 04:53 AM
                                            Silvermont architecture in-depth articleMichael S2013/06/01 10:49 AM
                        Silvermont architecture in-depth articleRicardo B2013/05/30 04:41 PM
                          Didn't notice how this was to be organized...Sebastian Soeiro2013/05/30 07:55 PM
          Silvermont, not Saltwell? (NT)papapapa2013/05/28 04:33 PM
            Of course. Not enough sleep. (NT)Ricardo B2013/05/29 02:27 PM
  No out-of-order in FP cluster of silvermont?anon2013/06/28 03:27 AM
    No out-of-order in FP cluster of silvermont?Michael S2013/06/28 04:52 AM
      No out-of-order in FP cluster of silvermont?Exophase2013/06/28 01:54 PM
        No out-of-order in FP cluster of silvermont?Michael S2013/06/29 11:21 AM
          No out-of-order in FP cluster of silvermont?Exophase2013/06/29 09:07 PM
      No out-of-order in FP cluster of silvermont?Linus Torvalds2013/06/29 12:22 PM
        No out-of-order in FP cluster of silvermont?anon2013/06/29 05:26 PM
          No out-of-order in FP cluster of silvermont?EduardoS2013/06/29 06:50 PM
            No out-of-order in FP cluster of silvermont?anon2013/06/29 09:15 PM
              No out-of-order in FP cluster of silvermont?EduardoS2013/06/29 09:31 PM
                No out-of-order in FP cluster of silvermont?anon2013/06/30 02:53 AM
                  No out-of-order in FP cluster of silvermont?EduardoS2013/06/30 05:24 AM
                    No out-of-order in FP cluster of silvermont?anon2013/06/30 10:41 AM
                      No out-of-order in FP cluster of silvermont?EduardoS2013/06/30 01:26 PM
                        No out-of-order in FP cluster of silvermont?anon2013/07/01 12:32 AM
                          No out-of-order in FP cluster of silvermont?EduardoS2013/07/01 05:40 PM
                            No out-of-order in FP cluster of silvermont?anon2013/07/01 06:44 PM
                            No out-of-order in FP cluster of silvermont?Michael S2013/07/02 05:40 AM
                              No out-of-order in FP cluster of silvermont?Exophase2013/07/02 09:03 AM
                              No out-of-order in FP cluster of silvermont?EduardoS2013/07/02 05:20 PM
                          No out-of-order in FP cluster of silvermont?Patrick Chase2013/07/02 09:25 AM
                      No out-of-order in FP cluster of silvermont?Etienne2013/07/02 04:36 AM
                        No out-of-order in FP cluster of silvermont?anon2013/07/02 07:13 AM
                          No out-of-order in FP cluster of silvermont?Patrick Chase2013/07/02 10:03 AM
                            No out-of-order in FP cluster of silvermont?anon2013/07/02 04:12 PM
                              No out-of-order in FP cluster of silvermont?Patrick Chase2013/07/02 04:43 PM
                                No out-of-order in FP cluster of silvermont?anon2013/07/02 05:47 PM
                                  No out-of-order in FP cluster of silvermont?Patrick Chase2013/07/02 07:36 PM
                                    No out-of-order in FP cluster of silvermont?anon2013/07/02 09:03 PM
                                      No out-of-order in FP cluster of silvermont?Symmetry2013/07/03 07:14 AM
                                        No out-of-order in FP cluster of silvermont?Patrick Chase2013/07/03 09:04 PM
                                          No out-of-order in FP cluster of silvermont?Patrick Chase2013/07/04 03:23 AM
                        No out-of-order in FP cluster of silvermont?Patrick Chase2013/07/02 10:01 AM
                          No out-of-order in FP cluster of silvermont?Etienne2013/07/03 03:26 AM
                            layer 2 cache behaviourEtienne2013/07/05 03:14 AM
                              layer 2 cache behaviourMichael S2013/07/05 06:41 AM
                                layer 2 cache behaviourEtienne2013/07/05 09:15 AM
                              layer 2 cache behaviourPatrick Chase2013/07/05 11:37 AM
                                layer 2 cache behaviourMichael S2013/07/06 10:57 AM
                                  layer 2 cache behaviourPatrick Chase2013/07/06 12:08 PM
                                    layer 2 cache behaviourPatrick Chase2013/07/06 12:19 PM
                                    layer 2 cache behaviourEtienne2013/07/08 03:10 AM
                                      layer 2 cache behaviourPatrick Chase2013/07/08 10:02 AM
                                  layer 2 cache behaviourPatrick Chase2013/07/06 02:15 PM
                                  layer 2 cache behaviourUngo2013/07/09 03:24 PM
                      No out-of-order in FP cluster of silvermont?Patrick Chase2013/07/02 08:43 AM
                  No out-of-order in FP cluster of silvermont?Patrick Chase2013/07/02 08:34 AM
                    No out-of-order in FP cluster of silvermont?anon2013/07/02 04:15 PM
            No out-of-order in FP cluster of silvermont?none2013/06/30 05:03 AM
              No out-of-order in FP cluster of silvermont?EduardoS2013/06/30 05:45 AM
                No out-of-order in FP cluster of silvermont?none2013/06/30 06:28 AM
                  No out-of-order in FP cluster of silvermont?EduardoS2013/06/30 01:27 PM
        No out-of-order in FP cluster of silvermont?x2013/06/30 03:54 AM
          No out-of-order in FP cluster of silvermont?Foo_2013/06/30 06:15 AM
        No out-of-order in FP cluster of silvermont?rwessel2013/06/30 10:11 PM
          No out-of-order in FP cluster of silvermont?Linus Torvalds2013/07/01 01:40 PM
            No out-of-order in FP cluster of silvermont?Patrick Chase2013/07/02 10:35 AM
              No out-of-order in FP cluster of silvermont?Linus Torvalds2013/07/02 11:18 AM
            FPU in integer codes2013/07/02 11:38 AM
              FPU in integer codesPatrick Chase2013/07/02 11:56 AM
              FPU in integer codesLinus Torvalds2013/07/02 12:12 PM
                FPU in integer codesPatrick Chase2013/07/02 12:34 PM
                  FPU in integer codesLinus Torvalds2013/07/02 01:55 PM
        No out-of-order in FP cluster of silvermont?2013/06/30 11:42 PM
          No out-of-order in FP cluster of silvermont?bakaneko2013/07/03 03:54 AM
        What about integer SIMD?Exophase2013/07/01 12:44 AM
          What about integer SIMD?anon2013/07/01 01:45 AM
            What about integer SIMD?Michael S2013/07/01 08:57 AM
              What about integer SIMD?rwessel2013/07/01 03:39 PM
                What about integer SIMD?Michael S2013/07/01 04:11 PM
                  What about integer SIMD?EduardoS2013/07/01 06:04 PM
                    What about integer SIMD?Michael S2013/07/02 12:32 AM
          What about integer SIMD?hi2013/07/01 08:15 AM
            What about integer SIMD?Exophase2013/07/01 10:50 AM
            What about integer SIMD?David Kanter2013/07/02 01:20 PM
              What about integer SIMD?hi2013/07/02 03:48 PM
                What about integer SIMD?David Kanter2013/07/04 03:19 PM
  Silvermont architecture in-depth articleSebastian Soeiro2013/07/30 09:34 AM
    TLBs are caches of page tablesPaul A. Clayton2013/07/30 11:03 AM
      TLBs are caches of page tablesSebastian Soeiro2013/07/30 01:18 PM
        TLBs are caches of page tablesPaul A. Clayton2013/07/30 03:59 PM
          TLBs are caches of page tablesSebastian Soeiro2013/07/30 05:27 PM
            TLBs are caches of page tablesrwessel2013/07/30 07:01 PM
              TLBs are caches of page tablesSebastian Soeiro2013/07/31 02:15 PM
                Floorplan images show physical locationsPaul A. Clayton2013/07/31 04:11 PM
                  Floorplan images show physical locationsSebastian Soeiro2013/07/31 09:12 PM
                    Floorplan images show physical locationsrwessel2013/08/01 12:21 AM
                      Floorplan images show physical locationsSebastian Soeiro2013/08/02 12:58 PM
                        Floorplan images show physical locationsAntti-Ville Tuunainen2013/08/02 02:09 PM
                        Floorplan images show physical locationsStubabe2013/08/02 07:49 PM
                          Floorplan images show physical locationsSebastian Soeiro2013/08/03 08:23 AM
                            Floorplan images show physical locationsrwessel2013/08/03 11:16 PM
                            Floorplan images show physical locationsMelody Speer2013/08/04 04:11 AM
                              Floorplan images show physical locationsSebastian Soeiro2013/08/04 05:42 PM
                                Floorplan images show physical locationsrwessel2013/08/04 10:58 PM
                                  Floorplan images show physical locationsSebastian Soeiro2013/08/07 03:33 PM
                                    Floorplan images show physical locationsrwessel2013/08/08 01:03 PM
                                      Floorplan images show physical locationsSebastian Soeiro2013/08/11 09:20 AM
                                        Page tables are set up by the OSPaul A. Clayton2013/08/11 01:25 PM
                                          Page tables are set up by the OSSebastian Soeiro2013/08/16 08:43 PM
                                            Multilevel page table formatPaul A. Clayton2013/08/17 11:18 AM
                                              Multilevel page table formatSebastian Soeiro2013/08/19 03:28 PM
                                                Multilevel page table formatrwessel2013/08/20 12:08 AM
                                                  Multilevel page table formatSebastian Soeiro2013/08/22 04:52 PM
                                                    Multilevel page table formatTREZA2013/08/22 05:30 PM
                                                    Multilevel page table formatrwessel2013/08/23 10:58 PM
                                                      Multilevel page table formatSebastian Soeiro2013/08/25 08:20 AM
                TLBs are caches of page tablesrwessel2013/08/01 12:41 AM
                  TLBs are caches of page tablesSebastian Soeiro2013/08/02 12:51 PM
                    TLBs are caches of page tablesrwessel2013/08/02 06:55 PM
  Silvermont instruction schedulingHugo Décharnes2013/10/02 03:25 AM
    Silvermont instruction schedulingMichael S2013/10/02 04:29 AM
Reply to this Topic
Name:
Email:
Topic:
Body: No Text
How do you spell green?