Zilog Z8000

By: Brett (ggtgp.delete@this.yahoo.com), January 11, 2020 3:16 pm
Room: Moderated Discussions
rwessel (robertwessel.delete@this.yahoo.com) on January 11, 2020 12:26 pm wrote:
> Adrian (a.delete@this.acm.org) on January 11, 2020 6:29 am wrote:
> > David Hess (davidwhess.delete@this.gmail.com) on January 11, 2020 6:06 am wrote:
> > > Brett (ggtgp.delete@this.yahoo.com) on January 10, 2020 9:53 pm wrote:
> > > >
> > > > Did not realize that the idea of a 64k limited chip was dead and segments would not revive it.
> > >
> > > How does this differ for the 8086? Wouldn't this objection apply to it also?
> > >
> >
> >
> > The same objection was applied to both since the beginning.
> >
> > However, 8086 was introduced one year earlier, when the only alternative that would not be
> > at least one order of magnitude more expensive would have been something like DEC PDP-11.
> >
> > The method used by DEC PDP-11 to extend the address space from 16 bit to 22 bit was
> > much less convenient than the segmentation of 8086 or of 80286, so at introduction
> > nobody criticized 8086 for its segmentation, because it was progress anyway.
>
>
> One thing to remember is that for small programs (by x86 standards, large for 8080), segmentation
> as implemented in x86-16 provided a substantial increase in memory available for applications,
> at near zero cost in complexity. Consider that on 8080, the OS, BIOS, memory mapped I/O, the
> application and its data all had to fit in 64KB. With the trivial x86-16 small model, the application
> had a full 64KB for code and another 64KB for data. In many applications this doubled the possible
> amount of code and tripled the size of the dataset being processed.

Yes the Z800 added a MMU to split code and data and give 24 bit segment addressing.

The eZ80 extended the registers to 24 bit flat addressing.
http://www.zilog.com/force_download.php?filepath=YUhSMGNEb3ZMM2QzZHk1NmFXeHZaeTVqYjIwdlpHOWpjeTlWVFRBd056Y3VjR1Jt

The Z380 extended the registers to 32 bit flat addressing.
http://www.zilog.com/force_download.php?filepath=YUhSMGNEb3ZMM2QzZHk1NmFXeHZaeTVqYjIwdlpHOWpjeTl6WlhKcFlXd3Zlak00TUM1d1pHWT0=

The original Z80 only took a year to design and each of these simple extensions would have also taken a year, but Zilog dropped the ball for a decade instead.

These are all successful Z80 chips today still in production, had Zilog done these simple upgrades instead of the aggressive incompatible Z8000 and Z80000 designs Zilog would have had far more success.

Intel invested in the 432 failure, but also developed the over designed and expensive 286 which never had a successful OS. Let’s say the 286 would have faced the cheaper eZ80 or Z380 without the expensive MMU taking half the die. Intel may still have won, but the cheaper Z80 line would dominate POS system terminals, etc.

Instead Zilog bet the company on consecutive Hail Mary passes and failed.
I bet Zilog did this because the 16 bit customers were not interested in the extended Z80, and those that wanted more got sucked into the Z8000 and Z80000 fiascos. So the paper launch Z800 got dropped, fumbled for half a decade.

> In many ways it was not until 16-bit protected mode that segmentation became a huge pain.
> Even there a large part of the problem was the inadequate number of segment registers, the
> slowness of reloading them, and the loss of a writable CS compared to real mode (which is really
> the same as the first issue). I'm not suggesting we go back to that, but segmentation in 16-bit
> protected mode could have been much less painful with some fairly minor changes.

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TopicPosted ByDate
Nuances related to Spinlock implementation and the Linux SchedulerBeastian2020/01/03 12:46 PM
  Nuances related to Spinlock implementation and the Linux SchedulerMontaray Jack2020/01/03 01:14 PM
    Nuances related to Spinlock implementation and the Linux SchedulerMontaray Jack2020/01/03 01:49 PM
  No nuances, just buggy code (was: related to Spinlock implementation and the Linux Scheduler)Linus Torvalds2020/01/03 07:05 PM
    No nuances, just buggy code (was: related to Spinlock implementation and the Linux Scheduler)Beastian2020/01/04 12:03 PM
    No nuances, just buggy code (was: related to Spinlock implementation and the Linux Scheduler)Malte Skarupke2020/01/04 12:22 PM
      No nuances, just buggy code (was: related to Spinlock implementation and the Linux Scheduler)Linus Torvalds2020/01/04 01:31 PM
        No nuances, just buggy code (was: related to Spinlock implementation and the Linux Scheduler)dmcq2020/01/05 07:33 AM
        No nuances, just buggy code (was: related to Spinlock implementation and the Linux Scheduler)smeuletz2020/01/06 02:05 AM
          Do not blame others for your unfinished jobsmeuletz2020/01/06 02:08 AM
            Where did all the experts come from? Did Linus get linked? (NT)anon2020/01/06 04:27 AM
              PhoronixGabriele Svelto2020/01/06 05:04 AM
                PhoronixSalvatore De Dominicis2020/01/06 07:59 AM
            Do not blame anyone. Please give polite, constructive criticismChester2020/01/06 09:17 AM
              Do not blame anyone. Please give polite, constructive criticismsmeuletz2020/01/06 10:11 AM
                Do not blame anyone. Please give polite, constructive criticismChester2020/01/06 10:54 AM
                  Do not blame anyone. Please give polite, constructive criticismsmeuletz2020/01/06 11:33 AM
                    Do not blame anyone. Please give polite, constructive criticismLinus Torvalds2020/01/06 12:58 PM
                      Do not blame anyone. Please give polite, constructive criticismGionatan Danti2020/01/06 01:13 PM
                        Do not blame anyone. Please give polite, constructive criticismLinus Torvalds2020/01/06 01:28 PM
                          Do not blame anyone. Please give polite, constructive criticismGionatan Danti2020/01/06 01:52 PM
                          Do not blame anyone. Please give polite, constructive criticismJohn Scott2020/01/10 08:48 AM
                          Do not blame anyone. Please give polite, constructive criticismsupernovas2020/01/10 10:01 AM
                            Do not blame anyone. Please give polite, constructive criticismLinus Torvalds2020/01/10 12:45 PM
                          Do not blame anyone. Please give polite, constructive criticismGDan2020/04/06 03:10 AM
                            OracleAnon32020/04/07 06:42 AM
                      Do not blame anyone. Please give polite, constructive criticismsmeuletz2020/01/07 04:07 AM
                        Do not blame anyone. Please give polite, constructive criticismSimon Farnsworth2020/01/07 01:40 PM
                        Do not blame anyone. Please give polite, constructive criticismEtienne2020/01/08 02:08 AM
                          Do not blame anyone. Please give polite, constructive criticismsmeuletz2020/01/08 02:18 AM
                            Do not blame anyone. Please give polite, constructive criticismMichael S2020/01/08 02:56 AM
                      Not deprecating irrelevant API: sched_yield() on quantum computers?smeuletz2020/01/07 04:34 AM
                      Do not blame anyone. Please give polite, constructive criticismmagicalgoat2020/01/09 05:58 PM
                        Do not blame anyone. Please give polite, constructive criticismLinus Torvalds2020/01/09 10:37 PM
                          Do not blame anyone. Please give polite, constructive criticismAnon32020/01/10 04:40 PM
                  Do not blame anyone. Please give polite, constructive criticismrwessel2020/01/06 10:04 PM
                Do not blame anyone. Please give polite, constructive criticismLinus Torvalds2020/01/06 12:11 PM
                  Do not blame anyone. Please give polite, constructive criticismGabriele Svelto2020/01/06 02:36 PM
        No nuances, just buggy code (was: related to Spinlock implementation and the Linux Scheduler)Howard Chu2020/01/09 11:39 PM
          No nuances, just buggy code (was: related to Spinlock implementation and the Linux Scheduler)Linus Torvalds2020/01/10 12:30 PM
      No nuances, just buggy code (was: related to Spinlock implementation and the Linux Scheduler)president ltd2020/01/04 02:44 PM
    No nuances, just buggy code (was: related to Spinlock implementation and the Linux Scheduler)Jörn Engel2020/01/04 12:34 PM
      No nuances, just buggy code (was: related to Spinlock implementation and the Linux Scheduler)Emil Briggs2020/01/04 01:13 PM
        No nuances, just buggy code (was: related to Spinlock implementation and the Linux Scheduler)Jörn Engel2020/01/04 01:46 PM
      No nuances, just buggy code (was: related to Spinlock implementation and the Linux Scheduler)Linus Torvalds2020/01/04 02:24 PM
        No nuances, just buggy code (was: related to Spinlock implementation and the Linux Scheduler)Linus Torvalds2020/01/04 03:54 PM
          No nuances, just buggy code (was: related to Spinlock implementation and the Linux Scheduler)Jörn Engel2020/01/05 10:21 AM
            No nuances, just buggy code (was: related to Spinlock implementation and the Linux Scheduler)Linus Torvalds2020/01/05 12:42 PM
              FUTEX_LOCK_PI performanceJörn Engel2020/01/05 02:45 PM
                FUTEX_LOCK_PI performanceLinus Torvalds2020/01/05 04:30 PM
                  FUTEX_LOCK_PI performanceJörn Engel2020/01/05 07:03 PM
                    FUTEX_LOCK_PI performanceRichardC2020/01/06 07:11 AM
                      FUTEX_LOCK_PI performanceLinus Torvalds2020/01/06 01:11 PM
                  FUTEX_LOCK_PI performanceGabriele Svelto2020/01/06 03:20 AM
                    FUTEX_LOCK_PI performancexilun2020/01/06 05:19 PM
                    FUTEX_LOCK_PI performanceKonrad Schwarz2020/01/13 04:36 AM
                      FUTEX_LOCK_PI performanceGabriele Svelto2020/01/13 04:53 AM
                      FUTEX_LOCK_PI performanceSimon Farnsworth2020/01/13 05:36 AM
                      FUTEX_LOCK_PI performancerwessel2020/01/13 06:22 AM
    No nuances, just buggy code (was: related to Spinlock implementation and the Linux Scheduler)rainstar2020/01/04 10:58 PM
      No nuances, just buggy code (was: related to Spinlock implementation and the Linux Scheduler)Charles Ellis2020/01/05 04:00 AM
        No nuances, just buggy code (was: related to Spinlock implementation and the Linux Scheduler)Richard2020/01/05 09:58 AM
          It's hard to separateMichael S2020/01/05 11:17 AM
            It's hard to separaterainstared2020/01/06 01:52 AM
              It's hard to separateDavid Kanter2020/01/08 09:27 AM
                It's hard to separateAnon2020/01/08 09:37 PM
                  It's hard to separatenone2020/01/08 11:50 PM
                    It's hard to separateAnon2020/01/09 01:41 AM
                      It's hard to separatenone2020/01/09 03:54 AM
                        It's hard to separategallier22020/01/09 04:19 AM
                          It's hard to separateAnon2020/01/09 05:12 AM
                            It's hard to separateAdrian2020/01/09 05:24 AM
                              It's hard to separategallier22020/01/09 05:58 AM
                                It's hard to separateAdrian2020/01/09 07:09 AM
                            It's hard to separategallier22020/01/09 05:42 AM
                        It's hard to separateAdrian2020/01/09 04:41 AM
                        It's hard to separateAnon2020/01/09 05:24 AM
                          It's hard to separategallier22020/01/09 06:07 AM
                          It's hard to separateDavid Hess2020/01/09 09:27 AM
                            It's hard to separateAdrian2020/01/09 10:15 AM
                              It's hard to separateDavid Hess2020/01/09 10:45 AM
                                It's hard to separateAnon2020/01/09 11:15 AM
                                  It's hard to separateAdrian2020/01/09 11:51 AM
                                    It's hard to separateBrett2020/01/09 01:49 PM
                                      Zilog Z8000Brett2020/01/10 10:53 PM
                                        Zilog Z8000David Hess2020/01/11 07:06 AM
                                          Zilog Z8000Adrian2020/01/11 07:29 AM
                                            Zilog Z8000David Hess2020/01/11 08:45 AM
                                              Zilog Z8000Ricardo B2020/01/11 08:04 PM
                                                Zilog Z8000Ronald Maas2020/01/12 10:47 AM
                                                  Zilog Z8000Ricardo B2020/01/12 12:15 PM
                                                    Zilog Z8000Anon2020/01/12 11:34 PM
                                                      Zilog Z8000Jose2020/01/13 01:23 AM
                                                        Zilog Z8000gallier22020/01/13 01:42 AM
                                                          Zilog Z8000Jose2020/01/13 10:04 PM
                                                            Zilog Z8000rwessel2020/01/13 10:40 PM
                                                              Zilog Z8000David Hess2020/01/13 11:35 PM
                                                                Zilog Z8000Simon Farnsworth2020/01/14 03:56 AM
                                                                  Zilog Z8000Michael S2020/01/14 04:09 AM
                                                                    Zilog Z8000Simon Farnsworth2020/01/14 05:06 AM
                                                                      Zilog Z8000David Hess2020/01/14 10:22 AM
                                                                  Zilog Z8000David Hess2020/01/14 10:15 AM
                                                                Zilog Z8000rwessel2020/01/14 04:12 PM
                                                                  286 16 bit I/OTim McCaffrey2020/01/15 11:25 AM
                                                                    286 16 bit I/ODavid Hess2020/01/15 09:17 PM
                                                      Zilog Z8000Ricardo B2020/01/13 11:52 AM
                                                        Zilog Z8000Anon2020/01/13 12:25 PM
                                                          Zilog Z8000David Hess2020/01/13 06:38 PM
                                                            Zilog Z8000rwessel2020/01/13 07:16 PM
                                                              Zilog Z8000David Hess2020/01/13 07:47 PM
                                                          Zilog Z8000someone2020/01/14 07:54 AM
                                                            Zilog Z8000Anon2020/01/14 08:31 AM
                                                          Zilog Z8000Ricardo B2020/01/14 06:29 PM
                                                  Zilog Z8000Simon Farnsworth2020/01/15 03:26 AM
                                                    Zilog Z8000Tim McCaffrey2020/01/15 11:27 AM
                                                      Zilog Z8000Simon Farnsworth2020/01/15 02:32 PM
                                                    Zilog Z8000Ricardo B2020/01/15 03:47 PM
                                                      Zilog Z8000Anon2020/01/15 04:08 PM
                                                        Zilog Z8000Ricardo B2020/01/15 05:16 PM
                                                          Zilog Z8000Anon2020/01/15 05:31 PM
                                                            Zilog Z8000Ricardo B2020/01/15 06:46 PM
                                                              Zilog Z8000Anon2020/01/15 07:04 PM
                                                                Zilog Z8000David Hess2020/01/15 09:53 PM
                                                                Zilog Z8000Ricardo B2020/01/16 07:27 PM
                                                                  Zilog Z8000Anon2020/01/16 08:33 PM
                                                                    Zilog Z8000Ronald Maas2020/01/17 12:05 AM
                                                                      Zilog Z8000Anon2020/01/17 08:15 AM
                                                                    Zilog Z8000Ricardo B2020/01/17 02:59 PM
                                                                      Zilog Z8000Anon2020/01/17 07:40 PM
                                                                        Zilog Z8000Ricardo B2020/01/18 08:42 AM
                                                                          Zilog Z8000gallier22020/01/19 08:02 AM
                                                                    Zilog Z8000David Hess2020/01/18 07:12 AM
                                                            Zilog Z8000David Hess2020/01/15 09:49 PM
                                                          Zilog Z8000gallier22020/01/16 12:57 AM
                                                      Zilog Z8000Simon Farnsworth2020/01/16 02:30 AM
                                                        IBM PC successEtienne2020/01/16 06:42 AM
                                                        Zilog Z8000Ricardo B2020/01/16 07:32 PM
                                                          Zilog Z8000Brett2020/01/17 01:38 AM
                                                            Zilog Z8000David Hess2020/01/18 07:28 AM
                                                          Zilog Z8000David Hess2020/01/18 07:22 AM
                                                    Zilog Z8000David Hess2020/01/15 09:30 PM
                                            Zilog Z8000Maxwell2020/01/11 09:07 AM
                                              Zilog Z8000David Hess2020/01/11 09:40 AM
                                                Zilog Z8000Maxwell2020/01/11 10:08 AM
                                                  Zilog Z8000Ricardo B2020/01/11 08:42 PM
                                                    8086 does NOT have those addressing modesDevin2020/01/12 02:13 PM
                                                      8086 does NOT have those addressing modesRicardo B2020/01/12 06:46 PM
                                                        8086 does NOT have those addressing modesAnon2020/01/13 05:10 AM
                                                          8086 does NOT have those addressing modesgallier22020/01/13 06:07 AM
                                                            8086 does NOT have those addressing modesAnon2020/01/13 07:09 AM
                                                              8086 does NOT have those addressing modesRicardo B2020/01/13 11:48 AM
                                                          8086 does NOT have those addressing modesMichael S2020/01/13 07:40 AM
                                                            Zilog Z8000Ronald Maas2020/01/13 09:44 AM
                                                              Zilog Z8000Anon2020/01/13 04:32 PM
                                                          8086 does NOT have those addressing modesRicardo B2020/01/13 11:24 AM
                                                            8086 does NOT have those addressing modesrwessel2020/01/13 03:59 PM
                                                              8086 does NOT have those addressing modesDavid Hess2020/01/13 07:12 PM
                                                                8086 does NOT have those addressing modesrwessel2020/01/13 07:28 PM
                                                                  8086 does NOT have those addressing modesDavid Hess2020/01/13 07:51 PM
                                                          8086 does NOT have those addressing modesDavid Hess2020/01/13 06:55 PM
                                            Zilog Z8000rwessel2020/01/11 01:26 PM
                                              Zilog Z8000Brett2020/01/11 03:16 PM
                                                Zilog Z8000rwessel2020/01/11 08:20 PM
                                                  Zilog Z8000Brett2020/01/12 01:02 PM
                                                    Zilog Z8000rwessel2020/01/12 10:06 PM
                                                      Zilog Z8000Brett2020/01/12 11:02 PM
                                                    Zilog Z8000James2020/01/13 06:12 AM
                                              Zilog Z8000Adrian2020/01/12 12:38 AM
                                                PDP-11Michael S2020/01/12 02:33 AM
                                                Zilog Z8000rwessel2020/01/12 07:01 AM
                                              Zilog Z8000Ronald Maas2020/01/12 11:03 AM
                                            Zilog Z8000Konrad Schwarz2020/01/13 04:49 AM
                                              Zilog Z8000Adrian2020/01/14 12:38 AM
                                                Zilog Z8000konrad.schwarz2020/01/15 05:50 AM
                                                  Zilog Z8000Adrian2020/01/15 11:24 PM
                                    It's hard to separateDavid Hess2020/01/11 07:08 AM
                                  It's hard to separateDavid Hess2020/01/11 07:11 AM
                                It's hard to separateAdrian2020/01/09 12:16 PM
                                  It's hard to separateDavid Hess2020/01/11 07:17 AM
                                It's hard to separategallier22020/01/10 01:11 AM
                                  It's hard to separatenone2020/01/10 02:58 AM
                        It's hard to separaterwessel2020/01/09 08:00 AM
                        It's hard to separateDavid Hess2020/01/09 09:10 AM
                          It's hard to separaterwessel2020/01/09 09:51 AM
                  It's hard to separateAdrian2020/01/08 11:58 PM
                    It's hard to separaterwessel2020/01/09 07:31 AM
                      It's hard to separateAdrian2020/01/09 07:44 AM
                    It's hard to separateDavid Hess2020/01/09 09:37 AM
                      It's hard to separatenone2020/01/09 10:34 AM
                  Are segments so bad?Paul A. Clayton2020/01/09 03:15 PM
                    Yes, they are terrible (NT)Anon2020/01/09 03:20 PM
                    Are segments so bad?Adrian2020/01/10 12:49 AM
                      Are segments so bad?Etienne2020/01/10 02:28 AM
                        Are segments so bad?gallier22020/01/10 02:37 AM
                          Are segments so bad?Adrian2020/01/10 03:19 AM
                            Are segments so bad?Adrian2020/01/10 04:27 AM
                              Are segments so bad?Etienne2020/01/10 04:41 AM
                        Are segments so bad?Adrian2020/01/10 03:05 AM
                          Are segments so bad?gallier22020/01/10 03:13 AM
                      Are segments so bad?Anon32020/01/10 11:37 AM
                        Are segments so bad?Adrian2020/01/10 11:47 AM
                          Are segments so bad?Brendan2020/01/11 01:43 AM
                      Are segments so bad?Anon2020/01/10 06:51 PM
                        Are segments so bad?Adrian2020/01/11 01:05 AM
                          Are segments so bad?Jukka Larja2020/01/11 08:20 AM
                            Are segments so bad?Brendan2020/01/11 10:14 AM
                              Are segments so bad?Jukka Larja2020/01/11 09:15 PM
                                Are segments so bad?Brendan2020/01/11 11:15 PM
                                  Are segments so bad?Jukka Larja2020/01/12 04:18 AM
                                  Are segments so bad?anon2020/01/12 12:30 PM
                                    Are segments so bad?Brendan2020/01/12 10:19 PM
                                      the world sucks worse than you're aware ofMichael S2020/01/13 01:50 AM
                                        the world sucks worse than you're aware ofBrendan2020/01/13 03:56 AM
                                        the world sucks worse than you're aware ofGabriele Svelto2020/01/13 04:46 AM
                                      Are segments so bad?Jukka Larja2020/01/13 07:41 AM
                                        Are segments so bad?Brendan2020/01/13 08:21 AM
                                          Are segments so bad?Jukka Larja2020/01/13 09:43 AM
                                            Are segments so bad?Brendan2020/01/13 01:02 PM
                                              Are segments so bad?Anne O. Nymous2020/01/13 01:22 PM
                                                Are segments so bad?Brendan2020/01/13 02:50 PM
                                                  actor of around 200?Michael S2020/01/14 03:58 AM
                                                  Not overcomitting leads to more OOMs, not lessGabriele Svelto2020/01/14 12:50 PM
                                                    Not overcomitting leads to more OOMs, not lessBrendan2020/01/14 01:40 PM
                                                      Not overcomitting leads to more OOMs, not lessGabriele Svelto2020/01/15 03:17 AM
                                                        Not overcomitting leads to more OOMs, not lessAnon2020/01/15 04:43 AM
                                                          Not overcomitting leads to more OOMs, not lessGabriele Svelto2020/01/15 05:09 AM
                                                            Not overcomitting leads to more OOMs, not lessAnon2020/01/15 05:16 AM
                                                              Not overcomitting leads to more OOMs, not lessGabriele Svelto2020/01/15 06:58 AM
                                                                Not overcomitting leads to more OOMs, not lessAnon2020/01/15 09:08 AM
                                                                  Not overcomitting leads to more OOMs, not lessGabriele Svelto2020/01/16 04:05 AM
                                                        Not overcomitting leads to more OOMs, not lessMichael S2020/01/15 04:48 AM
                                                          Not overcomitting leads to more OOMs, not lessGabriele Svelto2020/01/15 05:10 AM
                                                            Not overcomitting leads to more OOMs, not lessMichael S2020/01/15 08:13 AM
                                                              Not overcomitting leads to more OOMs, not lessJukka Larja2020/01/15 08:46 AM
                                                        Not overcomitting leads to more OOMs, not lessJukka Larja2020/01/15 06:08 AM
                                                          Thanks for the info (NT)Gabriele Svelto2020/01/15 07:00 AM
                                                      Not overcomitting leads to more OOMs, not lessLinus Torvalds2020/01/15 12:30 PM
                                                        OOM killer complainsAnon2020/01/15 12:44 PM
                                                          OOM killer complainsanon2020/01/15 04:26 PM
                                                        Not overcomitting leads to more OOMs, not lessBrendan2020/01/16 07:26 AM
                                                          Not overcomitting leads to more OOMs, not lessLinus Torvalds2020/01/16 10:17 AM
                                                            Not overcomitting leads to more OOMs, not lessLinus Torvalds2020/01/16 10:48 AM
                                                              Not overcomitting leads to more OOMs, not lessDoug S2020/01/16 03:41 PM
                                                                Not overcomitting leads to more OOMs, not lessDoug S2020/01/16 03:44 PM
                                                Are segments so bad?rwessel2020/01/13 04:11 PM
                                              Are segments so bad?Jukka Larja2020/01/14 07:37 AM
                                                Are segments so bad?Brendan2020/01/14 08:48 AM
                                                  Are segments so bad?Jukka Larja2020/01/14 11:13 AM
                                                    Are segments so bad?Brendan2020/01/14 02:30 PM
                                                      Are segments so bad?Brett2020/01/14 10:13 PM
                                                      Are segments so bad?Jukka Larja2020/01/15 07:04 AM
                                                  Are segments so bad?Gabriele Svelto2020/01/15 03:35 AM
                                            Specifying cost of dropping pagesPaul A. Clayton2020/01/13 03:00 PM
                                              Specifying cost of dropping pagesrwessel2020/01/13 04:19 PM
                                                Specifying cost of dropping pagesGabriele Svelto2020/01/15 03:23 AM
                                          Are segments so bad?anon2020/01/14 02:15 AM
                                            Are segments so bad?Brendan2020/01/14 06:13 AM
                                          Are segments so bad?Gabriele Svelto2020/01/14 12:57 PM
                                            Are segments so bad?Brendan2020/01/14 02:58 PM
                                              Are segments so bad?Gabriele Svelto2020/01/15 03:33 AM
                                                Are segments so bad?Anon2020/01/15 05:24 AM
                                                  Are segments so bad?Jukka Larja2020/01/15 06:20 AM
                                                Are segments so bad?Etienne2020/01/15 05:56 AM
                                                  Are segments so bad?Jukka Larja2020/01/15 08:53 AM
                                                    Are segments so bad?Gabriele Svelto2020/01/16 06:12 AM
                                                      Are segments so bad?Jukka Larja2020/01/16 10:56 AM
                                                Are segments so bad?Brendan2020/01/15 06:20 AM
                                                  Are segments so bad?Gabriele Svelto2020/01/15 06:56 AM
                                                    Are segments so bad?Brendan2020/01/16 07:16 AM
                                                      Are segments so bad?Jukka Larja2020/01/16 11:08 AM
                                                        Are segments so bad?Brendan2020/01/17 01:52 PM
                                                          Are segments so bad?Jukka Larja2020/01/17 10:08 PM
                                                            Are segments so bad?Brendan2020/01/18 12:40 PM
                                                              Are segments so bad?Jukka Larja2020/01/18 10:13 PM
                                                                Are segments so bad?Brendan2020/01/19 12:25 PM
                                                                  Are segments so bad?Brett2020/01/19 03:18 PM
                                                                    Are segments so bad?Brett2020/01/19 03:34 PM
                                                                  Are segments so bad?Gabriele Svelto2020/01/20 12:57 AM
                                                                  Are segments so bad?Jukka Larja2020/01/20 05:54 AM
                                                                    Are segments so bad?Brendan2020/01/20 12:43 PM
                                                                      Are segments so bad?Jukka Larja2020/01/21 07:01 AM
                                                                        Are segments so bad?Brendan2020/01/21 06:04 PM
                                                                          Are segments so bad?Jukka Larja2020/01/22 07:30 AM
                                                                            Are segments so bad?Brendan2020/01/22 03:56 PM
                                                                              Are segments so bad?Jukka Larja2020/01/23 08:44 AM
                                                      Are segments so bad?rwessel2020/01/16 03:06 PM
                                                      Are segments so bad?Gabriele Svelto2020/01/16 03:13 PM
                                                        Are segments so bad?Brendan2020/01/17 01:51 PM
                                                          Are segments so bad?Gabriele Svelto2020/01/17 03:18 PM
                                                            Are segments so bad?Anon2020/01/17 08:01 PM
                                                              Are segments so bad?Gabriele Svelto2020/01/20 01:06 AM
                                                            Are segments so bad?Brendan2020/01/18 03:15 PM
                                                              Are segments so bad?Gabriele Svelto2020/01/20 12:55 AM
                                                                Are segments so bad?Michael S2020/01/20 05:30 AM
                                                                  Are segments so bad?Gabriele Svelto2020/01/20 08:02 AM
                                                                    Are segments so bad?Jukka Larja2020/01/20 08:41 AM
                                                                    Are segments so bad?Michael S2020/01/20 08:45 AM
                                                                      Are segments so bad?Gabriele Svelto2020/01/20 09:36 AM
                                                                Are segments so bad?Brendan2020/01/20 11:04 AM
                                                                  Are segments so bad?Michael S2020/01/20 01:22 PM
                                                                    Are segments so bad?Brendan2020/01/20 02:38 PM
                                                                      Are segments so bad?Simon Farnsworth2020/01/20 03:40 PM
                                                                        Are segments so bad?Anon2020/01/20 04:35 PM
                                                                          Are segments so bad?Simon Farnsworth2020/01/20 05:30 PM
                                                                      Are segments so bad?Michael S2020/01/20 05:20 PM
                                                                  Are segments so bad?Gabriele Svelto2020/01/21 05:08 AM
                                                                    Are segments so bad?Brendan2020/01/21 06:07 PM
                                                                      Are segments so bad?Gabriele Svelto2020/01/22 01:53 AM
                                                                        Are segments so bad?Brendan2020/01/22 04:32 AM
                                                                          Are segments so bad?Jukka Larja2020/01/22 07:12 AM
                                                                            Are segments so bad?Brendan2020/01/22 04:28 PM
                                                                              Are segments so bad?Jukka Larja2020/01/23 07:36 AM
                                                                                Are segments so bad?Brendan2020/01/24 07:27 PM
                                                                                  Are segments so bad?Jukka Larja2020/01/24 10:42 PM
                                                                                    Are segments so bad?Brendan2020/01/25 02:46 AM
                                                                                      Are segments so bad?Jukka Larja2020/01/25 08:29 AM
                                                                                        Are segments so bad?Brendan2020/01/26 11:17 PM
                                                                                          Are segments so bad?Jukka Larja2020/01/27 07:55 AM
                                                                                            Are segments so bad?Gabriele Svelto2020/01/27 04:33 PM
                                                                                              Are segments so bad?Jukka Larja2020/01/28 06:28 AM
                                                                                                DDS assets and MipMap chainsMontaray Jack2020/01/29 03:26 AM
                                                                                      Are segments so bad?gallier22020/01/27 03:58 AM
                                                                                        Are segments so bad?Jukka Larja2020/01/27 06:19 AM
                                                                                  Are segments so bad?Anne O. Nymous2020/01/25 03:23 AM
                                                                            Are segments so bad?Anon2020/01/22 05:52 PM
                                                                              Are segments so bad?Anne O. Nymous2020/01/23 01:24 AM
                                                                                Are segments so bad?Anon2020/01/23 05:24 PM
                                                                                  Are segments so bad?Anne O. Nymous2020/01/24 12:43 AM
                                                                                    Are segments so bad?Anon2020/01/24 04:04 AM
                                                                                      Are segments so bad?Etienne2020/01/24 06:10 AM
                                                                              Are segments so bad?Gabriele Svelto2020/01/23 01:48 AM
                                                                                Are segments so bad?Michael S2020/01/23 03:48 AM
                                                                                Are segments so bad?Jukka Larja2020/01/23 07:38 AM
                                                                                  Are segments so bad?Gabriele Svelto2020/01/23 01:29 PM
                                                                                    Are segments so bad?Anon2020/01/23 06:08 PM
                                                                                      Are segments so bad?Jukka Larja2020/01/24 09:51 PM
                                                                                Are segments so bad?Anon2020/01/23 06:02 PM
                                                                                  Are segments so bad?Gabriele Svelto2020/01/24 03:57 AM
                                                                                    Are segments so bad?Anon2020/01/24 04:17 AM
                                                                                      Are segments so bad?Gabriele Svelto2020/01/24 09:23 AM
                                                                                        Are segments so bad?Anon2020/02/02 10:15 PM
                                                                                          Are segments so bad?Gabriele Svelto2020/02/03 01:47 AM
                                                                                            Are segments so bad?Anon2020/02/03 02:34 AM
                                                                                              Are segments so bad?Gabriele Svelto2020/02/03 05:36 AM
                                                                                                Are segments so bad?Anon32020/02/03 08:47 AM
                                                                                                Are segments so bad?Anon2020/02/04 05:49 PM
                                                                                  Are segments so bad?Jukka Larja2020/01/24 10:10 PM
                                                          Are segments so bad?Jukka Larja2020/01/17 10:26 PM
                                Are segments so bad?Anne O. Nymous2020/01/12 04:18 AM
                                  Are segments so bad?Jukka Larja2020/01/12 08:41 AM
                            Are segments so bad?rwessel2020/01/11 01:31 PM
                          Are segments so bad?Anne O. Nymous2020/01/11 08:22 AM
                      Are segments so bad?Ricardo B2020/01/11 08:01 PM
                        Are segments so bad?Adrian2020/01/12 12:18 AM
                          Are segments so bad?Michael S2020/01/12 02:43 AM
                            Are segments so bad?Adrian2020/01/12 04:35 AM
                          Are segments so bad?Ricardo B2020/01/12 12:04 PM
                            Are segments so bad?Anon32020/01/12 05:52 PM
                            Are segments so bad?Brendan2020/01/12 09:58 PM
                      Are segments so bad?Paul A. Clayton2020/01/13 09:11 AM
        No nuances, just buggy code (was: related to Spinlock implementation and the Linux Scheduler)rainstared2020/01/06 01:43 AM
          No nuances, just buggy code (was: related to Spinlock implementation and the Linux Scheduler)Foo_2020/01/06 05:33 AM
            No nuances, just buggy code (was: related to Spinlock implementation and the Linux Scheduler)dmcq2020/01/06 06:03 AM
            changes in contextCarlie Coats2020/01/09 09:06 AM
      No nuances, just buggy code (was: related to Spinlock implementation and the Linux Scheduler)rainstar2020/01/09 10:16 PM
        No nuances, just buggy code (was: related to Spinlock implementation and the Linux Scheduler)Montaray Jack2020/01/09 11:11 PM
    Suggested reading for the authoranon2020/01/04 11:16 PM
      Suggested reading for the authorab2020/01/05 05:15 AM
        Looking at the other side (frequency scaling)Chester2020/01/06 10:19 AM
          Looking at the other side (frequency scaling)Foo_2020/01/06 11:00 AM
          Why spinlocks were usedFoo_2020/01/06 11:06 AM
            Why spinlocks were usedJukka Larja2020/01/06 12:59 PM
            Why spinlocks were usedSimon Cooke2020/01/06 03:16 PM
            Why spinlocks were usedRizzo2020/01/07 01:18 AM
          Looking at the other side (frequency scaling)ab2020/01/07 01:14 AM
    Cross-platform codeGian-Carlo Pascutto2020/01/06 08:00 AM
      Cross-platform codeMichael S2020/01/06 09:11 AM
        Cross-platform codeGian-Carlo Pascutto2020/01/06 12:33 PM
          Cross-platform codeMichael S2020/01/06 01:59 PM
            Cross-platform codeNksingh2020/01/07 12:09 AM
              Cross-platform codeMichael S2020/01/07 02:00 AM
              SRW lock implementationMichael S2020/01/07 02:35 AM
                SRW lock implementationNksingh2020/01/09 02:17 PM
                  broken URL in Linux source codeMichael S2020/01/14 01:56 AM
                    broken URL in Linux source codeTravis Downs2020/01/14 10:14 AM
                      broken URL in Linux source codeMichael S2020/01/14 10:48 AM
                        broken URL in Linux source codeTravis Downs2020/01/14 04:43 PM
                  SRW lock implementation - url brokenMichael S2020/01/14 03:07 AM
                    SRW lock implementation - url brokenTravis Downs2020/01/14 11:06 AM
                      SRW lock implementation - url brokengpderetta2020/01/15 04:28 AM
                        SRW lock implementation - url brokenTravis Downs2020/01/15 11:16 AM
                      SRW lock implementation - url brokenLinus Torvalds2020/01/15 11:20 AM
                        SRW lock implementation - url brokenTravis Downs2020/01/15 11:35 AM
                          SRW lock implementation - url brokenLinus Torvalds2020/01/16 11:24 AM
                    SRW lock implementation - url brokenKonrad Schwarz2020/02/05 10:19 AM
                    SRW lock implementation - url brokennksingh2020/02/05 02:42 PM
      Cross-platform codeLinus Torvalds2020/01/06 01:57 PM
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