The macOS performance deficit

By: anon2 (anon.delete@this.anon.com), November 26, 2020 1:50 am
Room: Moderated Discussions
I_vs (ivs.delete@this.anon.com) on November 24, 2020 11:12 pm wrote:
> Maynard Handley (name99.delete@this.name99.org) on November 24, 2020 2:06 pm wrote:
> > I_vs (ivs.delete@this.anon.com) on November 24, 2020 11:40 am wrote:
> > > Gabriele Svelto (gabriele.svelto.delete@this.gmail.com) on November 23, 2020 12:56 pm wrote:
> > > > If you want microbenchmarks they aren't hard to find either:
> > > >
> > > > https://www.bitsnbites.eu/benchmarking-os-primitives/
> > >
> > > This is an interesting one! My M1 MacBook Pro has just arrived so I have just run this
> > > suite on it. Here are the results (only one run, just to get a general idea):
> > >
> > > create_threads 6.08 us /thread
> > > create_processes 83.18 us /processs
> > > launch_programs 218.5 us /program
> > > create_files 101 us/file
> > > mem_alloc 82.139015 ns / alloc
> > >
> > > It seems that M1 brings significant improvements across the board. My 16" Intel
> > > MacBook Pro was basically as slow as the Mac Mini results in that blog post.
> > >
> > > I am particularly curious how Linux manages to be this fast on file creation.
> > > It seems like it never hits the drive, just some sort of in-memory cache?
> >
> > Most of the difference boils down to
> > - different functionality
> > - different ideas of what is acceptable safety
> >
> > Functionality includes, in particular, fsevents and the associated machinery tracking changes,
> > and thus powering both Spotlight (system search) and TimeMachine (file backups). This overhead
> > varies depending on exactly how you've configured macOS and what file system you're using.
> >
> > Acceptable safety boils down to different opinions about just what is promised (how much persistence,
> > with what ordering guarantees) by various explicit calls and implicit behavior.
> > Apple's take on this has long been that you cannot JUST persist to the extent that is theoretically
> > legal as promised you vendors (in particular drive vendors) because THEY lie about when stuff has really
> > been persisted (so that they can look good in benchmarks), you have to go beyond that. Presumably this
> > fairly draconian stance (which, yes, has serious performance implications) can be avoided once Apple
> > controls the entire drive (ie for flash being controlled by an Apple SSD controller).
> > The Linux stance on this seems to vary, depending on to whom you talk, from "of course you can
> > trust the HW guys, their firmware is the greatest" to "OK, yes, admittedly things CAN go wrong
> > in theory, but it's just not worth the performance hit to worry about something so unlikely".
> >
> > The last time I cared enough to look at this in detail,
> > the state of the art was essentially as described here:
> > https://bugs.mysql.com/bug.php?id=56550
> > (scroll down to 9 Nov 2010)
> >
> > Now has Apple changed since then? My guess is probably on pure Apple SSDs and nowhere else.
> > Has Linux changed since then? Not a clue.
> > Has drive firmware changed since then? Well, benchmarks are still a thing,
> > so my guess is the incentives remain what they were in 2010...
> >
> >
>
> Just a quick comment on this: I run the create_files microbenchmark again and noticed that there was a big spike
> in activity from fseventsd and mds. If macOS automatically indexes metadata and persistently tracks events of
> each file on creation, then yes, it would make perfect sense that file creation is significantly slower.
>
> When I use ionotifywait to log changes to the test on Linux, file creation times go from
> 9 us/file to 70 us/file (using a ramdisk). Linux is still faster of course, but I suppose
> that always-on event logging accounts for much of the observed difference.

Good result, that's a bit closer to what I expect, although I would guess Linux may be closer to 2x faster if you ran on the same CPU (a single threaded non-FP irregular code test will be hitting max turbo frequency or very close to it on both CPUs, which would put your Linux result at 50us with a 3.7/5.0 ratio. So that was actually a good suggestion from Maynard. Although I still disagree with him in that I don't believe OSX is getting any special advantage from its unsafe data integrity defaults here like it does in some other tests involving fsync().

Of course we still don't exactly know if we are doing an Apples to apples (/ducks) comparison here because we don't really know the extent of these notification features or other possible things going on. It would almost be better if you could turn off those fancy things on OSX and compare again, but maybe that's not possible.

I suspect other things like "process creation" may be also doing some fundamentally different work between the systems, possibly some security check or call to an AV process or logging/auditing or who knows what may also be slowing down results somewhat. Certainly it's not unusual to hear on Windows if AV or some particular service or weird driver is turned off or tweaked then it can turn from a slug to usable. I'm sure Windows is not 2 orders of magnitude slower on fork+exec when things are running properly and comparably.

I certainly don't think any kind of microkernel no matter how bad should be responsible for orders of magnitude slow down here - a synchronous single-threaded test like this is about the least problematic case for a microkernel (even if you had a pure microkernel that required a few full context switches into different kernel services, those should be on the order of a few microseconds even if you have to switch address spaces so that doesn't fundamentally explain +50 microseconds) -- it's when you get into scaling and pipelining and concurrency that you can see bigger breakdowns (and which is why they've shoehorned most of the IO subsystem into a BSD kernel on the side I would say). But I digress.

A big part of the problem for end users even somewhat technical people are these defaults which don't suit what they want to do, and there tends to be no obvious indication of the reason for the slow performance or how to fix it. Although some might counter stack exchange is fine for such FAQ these days.
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TopicPosted ByDate
The macOS performance deficitGabriele Svelto2020/11/22 03:02 PM
  The macOS performance deficitrpg2020/11/22 09:45 PM
    The macOS performance deficitChester2020/11/22 10:20 PM
    It's not really a fair fightanon22020/11/22 11:24 PM
      It's not really a fair fightGabriele Svelto2020/11/22 11:30 PM
        WSLanon2020/11/23 01:21 AM
          WSLkonrad schwarz2020/11/23 04:49 AM
            WSLMichael S2020/11/23 04:53 AM
              WSLKonrad Schwarz2020/11/25 09:02 AM
                WSLMichael S2020/11/25 09:19 AM
                  Cygwin vs MSYSKonrad Schwarz2020/11/26 02:12 AM
                    Cygwin vs MSYSMichael S2020/11/26 02:55 AM
                      Cygwin vs MSYSKonrad Schwarz2020/11/26 06:44 AM
                      Cygwin vs MSYSHoward Chu2020/11/26 12:15 PM
          WSLWindowsExperience2020/11/23 05:17 AM
            WSLHoward Chu2020/11/24 09:37 AM
        WindowsChester2020/11/24 01:34 AM
          WindowsMichael S2020/11/24 02:22 AM
            WindowsHoward Chu2020/11/24 09:41 AM
              WindowsChester2020/11/24 11:49 PM
                WindowsMichael S2020/11/25 12:26 AM
                  WindowsChester2020/11/25 03:40 PM
                    WindowsMichael S2020/11/26 03:03 AM
                      Windows and kernel timeChester2020/11/27 12:57 AM
                        Windows and kernel timeEtienne Lorrain2020/11/27 01:21 AM
                          Windows and kernel timeAndrey2020/11/27 02:56 AM
                            Windows and kernel timeMichael S2020/11/27 03:34 AM
                              Windows and kernel timeJames2020/11/27 06:35 AM
                                Windows and kernel timeanon32020/11/27 01:02 PM
                                  Windows and kernel timeBrendan2020/11/27 04:39 PM
                                    Windows and kernel timeanon32020/11/27 05:22 PM
                                      Windows and kernel timeBrendan2020/11/27 06:43 PM
                                  Windows and kernel timeGionatan Danti2020/11/28 02:13 PM
                              Windows and kernel timeAndrey2020/11/27 07:56 AM
                                Windows and kernel timeSimon Farnsworth2020/11/27 10:04 AM
                                  Windows and kernel timeanon2020/11/27 01:55 PM
                                  You also avoid bus contentionCarson2020/12/05 02:26 AM
                                    You also avoid bus contentionDavid Hess2020/12/05 05:07 AM
                                      You also avoid bus contentionCarson2020/12/05 09:50 AM
                                        You also avoid bus contentionDavid Hess2020/12/05 05:04 PM
                                Windows and kernel timeKonrad Schwarz2020/12/21 06:45 AM
                            Windows and kernel timeDavid Hess2020/11/27 07:13 PM
                          Windows and kernel timeLinus Torvalds2020/11/27 12:00 PM
                            Windows and kernel timeGionatan Danti2020/11/28 03:05 PM
                              Windows and kernel timeLinus Torvalds2020/11/28 04:18 PM
                                Windows and kernel timeBrendan2020/11/28 08:21 PM
                                  Windows and kernel timeDoug S2020/11/29 08:58 AM
                                    Windows and kernel timeBrendan2020/11/29 07:10 PM
                                      I read the profile wrongChester2020/11/30 11:10 AM
                                      Windows and kernel timeDoug S2020/11/30 11:10 AM
                                Windows and kernel timeJörn Engel2020/11/29 03:47 AM
                                  Windows and kernel timeLinus Torvalds2020/11/29 11:17 AM
                                Thanks for the explanation (NT)Gionatan Danti2020/11/29 04:25 AM
                            Windows and kernel timeGabriele Svelto2020/11/29 12:17 PM
                            Windows and kernel timeEtienne Lorrain2020/11/30 01:19 AM
                              Windows and kernel timeAdrian2020/11/30 04:57 AM
        It's not really a fair fightHoward Chu2020/11/24 09:34 AM
  The macOS performance deficitkonrad schwarz2020/11/23 04:52 AM
    The macOS performance deficitJon Masters2020/11/23 09:14 AM
      The macOS performance deficitsoftware_engineer2020/11/23 10:33 AM
        The macOS performance deficitMaynard Handley2020/11/23 11:03 AM
          The macOS performance deficitanon22020/11/23 04:28 PM
            The macOS performance deficitMaynard Handley2020/11/23 05:31 PM
              The macOS performance deficitanon22020/11/23 07:10 PM
                The macOS performance deficitMaynard Handley2020/11/23 08:53 PM
                  The macOS performance deficitanon22020/11/23 10:41 PM
            The macOS performance deficitGabriele Svelto2020/11/24 02:02 AM
              The macOS performance deficitUngo2020/11/24 03:30 AM
                The macOS performance deficitGabriele Svelto2020/11/24 03:38 AM
                The macOS performance deficitanon22020/11/24 06:37 AM
                  The macOS performance deficitUngo2020/11/24 11:31 AM
                    The macOS performance deficitanon22020/11/24 03:17 PM
                      The macOS performance deficitUngo2020/11/24 07:27 PM
                        The macOS performance deficitanon22020/11/24 09:06 PM
      The macOS performance deficitLinus Torvalds2020/11/23 11:59 AM
        The macOS performance deficitgallier22020/11/23 11:13 PM
          The macOS performance deficitLinus Torvalds2020/11/24 11:40 AM
        The macOS performance deficitJon Masters2020/11/24 01:52 AM
        Microsoft LinuxPaul2020/11/25 02:16 AM
          Microsoft LinuxMichael S2020/11/25 04:29 AM
          Microsoft Linuxm2020/11/25 07:52 AM
          Microsoft LinuxDummond D. Slow2020/11/25 08:46 AM
          Microsoft LinuxRobert Williams2020/11/25 09:49 AM
            Microsoft Linuxm2020/11/25 12:22 PM
              Microsoft LinuxMichael S2020/11/26 02:21 AM
                Microsoft Linuxm2020/11/26 09:54 AM
          Microsoft Linuxjuanrga2020/11/25 01:53 PM
            Microsoft Linuxm2020/11/25 10:02 PM
              Microsoft Linuxgpd2020/11/26 06:05 AM
      The macOS performance deficitGabriele Svelto2020/11/23 01:03 PM
        The macOS performance deficitRicardo B2020/11/29 06:31 PM
          The macOS performance deficitGionatan Danti2020/11/30 12:05 AM
            The macOS performance deficitRicardo B2020/11/30 12:35 AM
              The macOS performance deficitJacob Marley2020/11/30 12:45 AM
                The macOS performance deficitRicardo B2020/11/30 01:08 AM
                  The macOS performance deficitGionatan Danti2020/11/30 01:22 AM
            The macOS performance deficitEtienne Lorrain2020/11/30 03:08 AM
              The macOS performance deficitGionatan Danti2020/11/30 04:47 AM
  The macOS performance deficitI_vs2020/11/23 04:58 AM
    The macOS performance deficitGabriele Svelto2020/11/23 05:36 AM
      The macOS performance deficitI_vs2020/11/23 06:06 AM
        What is the disk performance of each system? (NT)Anon2020/11/23 06:29 AM
          What is the disk performance of each system?I_vs2020/11/23 09:29 AM
        The macOS performance deficitDummond D. Slow2020/11/23 07:24 AM
          The macOS performance deficitI_vs2020/11/23 09:39 AM
            The macOS performance deficitJukka Larja2020/11/24 06:37 AM
            The macOS performance deficitHoward Chu2020/11/24 09:58 AM
              The macOS performance deficitI_vs2020/11/24 11:22 AM
            The macOS performance deficitAdrian2020/11/24 10:27 AM
          The macOS performance deficitMichael S2020/11/23 11:12 AM
        The macOS performance deficitGabriele Svelto2020/11/23 12:59 PM
  The macOS performance deficitDoug S2020/11/23 11:58 AM
    The macOS performance deficitLinus Torvalds2020/11/23 12:05 PM
      The macOS performance deficitm2020/11/26 11:11 AM
        Process Creation and MacOSRob Thorpe2020/11/27 10:45 AM
          Process Creation and MacOSNksingh2020/11/28 04:23 PM
            Process Creation and MacOSFoo_2020/11/29 03:01 AM
              Process Creation and MacOSnksingh2020/11/29 09:15 PM
            Interesting, looks like I was wrong on Windows tooRob Thorpe2020/11/30 07:42 AM
              I meant to put (NT) in that title. And this one. (NT)Rob Thorpe2020/11/30 07:44 AM
          Process Creation and MacOSLouis Gerbarg2020/11/29 10:41 AM
            Process Creation and MacOSGabriele Svelto2020/11/29 12:09 PM
              Process Creation and MacOSLouis Gerbarg2020/11/29 05:23 PM
                Process Creation and MacOSGabriele Svelto2020/11/30 01:05 PM
                  Process Creation and MacOSLouis Gerbarg2020/11/30 03:19 PM
                  Process Creation and MacOSgallier22020/12/01 12:25 AM
                    Process Creation and MacOSGabriele Svelto2020/12/01 01:56 AM
                    Process Creation and MacOSFoo_2020/12/01 12:30 PM
            That's informative (NT).Rob Thorpe2020/11/30 07:43 AM
          Process Creation and MacOSnoko2020/11/29 11:12 PM
    The macOS performance deficitGabriele Svelto2020/11/23 12:56 PM
      The macOS performance deficitanon22020/11/23 03:59 PM
      The macOS performance deficitI_vs2020/11/24 11:40 AM
        The macOS performance deficitMaynard Handley2020/11/24 02:06 PM
          The macOS performance deficitanon22020/11/24 03:46 PM
            The macOS performance deficitMaynard Handley2020/11/24 04:24 PM
              The macOS performance deficitanon22020/11/24 05:43 PM
                The macOS performance deficitMaynard Handley2020/11/24 06:04 PM
                  The macOS performance deficitanon22020/11/24 06:57 PM
                    The macOS performance deficitBrett2020/11/24 07:20 PM
                      The macOS performance deficitanon22020/11/24 09:22 PM
                  The macOS performance deficitJörn Engel2020/11/25 03:31 AM
              The macOS performance deficitGionatan Danti2020/11/25 10:26 AM
          The macOS performance deficitI_vs2020/11/24 11:12 PM
            The macOS performance deficitanon22020/11/26 01:50 AM
    The macOS performance deficitAndrey2020/11/26 04:24 AM
  The macOS performance deficitBrett2020/11/24 08:01 PM
    The macOS performance deficitMaynard Handley2020/11/24 09:09 PM
    Sour grapes (NT)anon22020/11/24 09:28 PM
    The macOS performance deficitGabriele Svelto2020/11/25 05:15 AM
    The macOS performance deficitAndrey2020/11/26 05:08 AM
      The macOS performance deficitBrett2020/11/26 11:29 AM
        The macOS performance deficitAndrey2020/11/26 12:33 PM
          The macOS performance deficitMaynard Handley2020/11/26 01:02 PM
            The macOS performance deficitAndrey2020/11/26 01:41 PM
              The macOS performance deficitrwessel2020/11/26 10:43 PM
              The macOS performance deficitJames2020/11/27 02:06 AM
            The macOS performance deficitGabriele Svelto2020/11/26 03:08 PM
          The macOS performance deficitBrett2020/11/26 04:11 PM
            The macOS performance deficitDummond D. Slow2020/11/26 05:16 PM
              The macOS performance deficitBrett2020/11/27 12:56 PM
                The macOS performance deficitMaynard Handley2020/11/27 02:32 PM
                  The macOS performance deficitJukka Larja2020/11/27 09:02 PM
                    The macOS performance deficitMaynard Handley2020/11/28 10:46 AM
                      The macOS performance deficitDummond D. Slow2020/11/28 12:09 PM
                      The macOS performance deficitsoftware_engineer2020/11/28 01:35 PM
                        The macOS performance deficitMaynard Handley2020/11/28 03:20 PM
                          The macOS performance deficitJukka Larja2020/11/28 09:09 PM
                            The macOS performance deficitMaynard Handley2020/11/28 09:27 PM
                              The macOS performance deficitJukka Larja2020/11/28 11:29 PM
                          The macOS performance deficitsoftware_engineer2020/11/29 12:56 AM
                            The macOS performance deficitMaynard Handley2020/11/29 11:29 AM
                      The macOS performance deficitJukka Larja2020/11/28 09:18 PM
                      The macOS performance deficitJames2020/11/29 04:02 AM
                        The macOS performance deficitFoo_2020/11/29 05:12 AM
                          The macOS performance deficitFoo_2020/11/29 05:18 AM
                            The macOS performance deficitMaynard Handley2020/11/29 11:35 AM
            The macOS performance deficitanon22020/11/26 05:59 PM
              The macOS performance deficitBrett2020/11/27 01:18 PM
                The macOS performance deficitanon22020/11/27 03:13 PM
            The macOS performance deficitAndrey2020/11/27 03:25 AM
              The macOS performance deficitBrett2020/11/27 01:49 PM
                The macOS performance deficitLinus Torvalds2020/11/28 11:16 AM
                  The macOS performance deficitBrett2020/11/28 06:44 PM
                    The macOS performance deficitanon22020/11/29 12:35 AM
                      The macOS performance deficitBrett2020/11/29 11:31 AM
                        The macOS performance deficitGabriele Svelto2020/11/29 12:00 PM
                          The macOS performance deficitBrett2020/11/29 01:09 PM
                            The macOS performance deficitMaynard Handley2020/11/29 08:57 PM
                              The macOS performance deficitanon32020/11/29 09:37 PM
                              The macOS performance deficitGionatan Danti2020/11/29 11:59 PM
                                The macOS performance deficitDummond D. Slow2020/11/30 08:00 AM
                                  The macOS performance deficitMaynard Handley2020/11/30 09:36 AM
                                    The macOS performance deficitGionatan Danti2020/11/30 10:12 AM
                                      The macOS performance deficitMaynard Handley2020/11/30 08:21 PM
                                        The macOS performance deficitBrett2020/11/30 11:17 PM
                                        The macOS performance deficitGionatan Danti2020/12/01 09:34 AM
                                          The macOS performance deficitMaynard Handley2020/12/01 12:03 PM
                                            The macOS performance deficitGionatan Danti2020/12/01 02:38 PM
                                          The macOS performance deficitUngo2020/12/01 03:13 PM
                                            The macOS performance deficitGionatan Danti2020/12/02 03:23 AM
                                              The macOS performance deficitDoug S2020/12/02 10:38 AM
                                                The macOS performance deficitGionatan Danti2020/12/03 02:23 AM
                                                  The macOS performance deficitDoug S2020/12/03 11:42 AM
                                                    The macOS performance deficitGionatan Danti2020/12/03 12:01 PM
                                                      The macOS performance deficitDoug S2020/12/03 02:37 PM
                                                        The macOS performance deficitDummond D. Slow2020/12/03 05:20 PM
                                                          The macOS performance deficitEtienne Lorrain2020/12/04 01:14 AM
                                                        The macOS performance deficitGionatan Danti2020/12/03 10:53 PM
                                                    The macOS performance deficitDummond D. Slow2020/12/03 05:15 PM
                                                    SDRGJHI4 ?Michael S2020/12/04 02:22 AM
                                                      SDRGJHI4 ?Doug S2020/12/04 08:21 AM
                                                      SDRGJHI4 ?Ungo2020/12/04 10:20 PM
                                              The macOS performance deficitUngo2020/12/02 01:57 PM
                                                The macOS performance deficitRicardo B2020/12/02 05:01 PM
                                          The macOS performance deficitMichael S2020/12/02 12:15 PM
                                            4xMichael S2020/12/02 01:09 PM
                                              4xDoug S2020/12/02 01:40 PM
                                              4xRicardo B2020/12/02 05:16 PM
                                                4xAnon2020/12/02 10:45 PM
                                                  4xAnon2020/12/02 10:47 PM
                                                  4xAndrey2020/12/03 12:01 AM
                                                  4xRicardo B2020/12/03 01:51 AM
                                                    4xAnon2020/12/03 02:00 AM
                                                      4xRicardo B2020/12/03 04:28 AM
                                                        4xAnon2020/12/03 05:25 AM
                                                          4xRicardo B2020/12/03 07:33 AM
                                                            4xAnon2020/12/03 10:34 AM
                                              python v C/C++Michael S2020/12/03 01:42 PM
                                                hw mattersMichael S2020/12/03 03:43 PM
                                                  hw mattersFoo_2020/12/04 02:57 AM
                                                    hw mattersMichael S2020/12/04 03:59 AM
                                                      SSD history mattersAdrian2020/12/04 10:10 AM
                                                  hw mattersRicardo B2020/12/04 03:23 AM
                                                    hw mattersMichael S2020/12/04 04:14 AM
                                                      hw mattersRicardo B2020/12/04 04:58 AM
                                                  hw mattersGionatan Danti2020/12/04 03:38 AM
                                                    hw mattersMichael S2020/12/04 04:33 AM
                                                      hw mattersGionatan Danti2020/12/04 08:49 AM
                                                        hw mattersMichael S2020/12/05 09:04 AM
                                                          hw mattersGionatan Danti2020/12/05 10:07 AM
                                                            hw mattersMichael S2020/12/05 10:25 AM
                                                              Win7 Home vs ProMichael S2020/12/07 08:43 AM
                                                                Win7 Home vs ProGionatan Danti2020/12/08 01:04 AM
                                                for MSVC usersMichael S2020/12/04 04:37 AM
                                            The macOS performance deficitGionatan Danti2020/12/03 02:09 AM
                                              The macOS performance deficitJukka Larja2020/12/03 07:31 AM
                                                The macOS performance deficitRicardo B2020/12/03 08:46 AM
                                                  The macOS performance deficitJukka Larja2020/12/03 10:01 AM
                                                    The macOS performance deficitGionatan Danti2020/12/03 12:37 PM
                                                      The macOS performance deficitJukka Larja2020/12/04 06:14 AM
                                                        The macOS performance deficitGionatan Danti2020/12/04 08:51 AM
                                                      The macOS performance deficitUngo2020/12/04 10:45 PM
                                                        The macOS performance deficitJukka Larja2020/12/05 02:11 AM
                                                          The macOS performance deficitMichael S2020/12/05 09:49 AM
                                                            The macOS performance deficitGionatan Danti2020/12/05 10:11 AM
                                                              The macOS performance deficitMichael S2020/12/05 11:00 AM
                                                                The macOS performance deficitGionatan Danti2020/12/05 11:59 AM
                                                                  The macOS performance deficitMichael S2020/12/05 12:22 PM
                                                        The macOS performance deficitGionatan Danti2020/12/05 09:41 AM
                                                          The macOS performance deficitMichael S2020/12/05 09:55 AM
                                                          The macOS performance deficitUngo2020/12/05 09:39 PM
                                                            The macOS performance deficitanon32020/12/05 11:07 PM
                                                              The macOS performance deficitGionatan Danti2020/12/06 01:10 AM
                                                            The macOS performance deficitGionatan Danti2020/12/06 01:04 AM
                                                              The macOS performance deficitUngo2020/12/06 12:24 PM
                                                                The macOS performance deficitLinus Torvalds2020/12/06 02:17 PM
                                                                  The macOS performance deficitUngo2020/12/06 03:28 PM
                                                                  The macOS performance deficitGionatan Danti2020/12/07 02:31 AM
                                                                    The macOS performance deficitLinus Torvalds2020/12/07 11:14 AM
                                                                      The macOS performance deficitGionatan Danti2020/12/07 02:29 PM
                                                                        The macOS performance deficitLinus Torvalds2020/12/08 12:36 PM
                                                                          Linux writebackGionatan Danti2020/12/08 01:23 PM
                                                                            Linux writebackLinus Torvalds2020/12/08 03:57 PM
                                                                              Good points, thanks (NT)Gionatan Danti2020/12/08 11:42 PM
                                                                The macOS performance deficitRicardo B2020/12/06 04:05 PM
                                                            The macOS performance deficitRicardo B2020/12/06 05:43 AM
                                                              The macOS performance deficitRicardo B2020/12/06 05:48 AM
                                                              The macOS performance deficitLinus Torvalds2020/12/06 11:11 AM
                                                                The macOS performance deficitRicardo B2020/12/06 02:57 PM
                                                                  Ext4 performance deficitBrett2020/12/06 05:01 PM
                                                                    Ext4 performance deficitRicardo B2020/12/06 05:36 PM
                                                                      Ext4 performance deficitBrett2020/12/06 06:13 PM
                                                                        Ext4 performance deficitBrett2020/12/06 11:25 PM
                                                                        Ext4 performance deficitGionatan Danti2020/12/07 03:06 AM
                                                                          Ext4 performance deficitBrett2020/12/07 02:12 PM
                                                                            Ext4 performance deficitanonymou52020/12/07 08:04 PM
                                                                            Ext4 performance deficitGionatan Danti2020/12/08 12:59 AM
                                                                              Ext4 performance deficitBrett2020/12/09 01:54 PM
                                                                                Ext4 performance deficitGionatan Danti2020/12/10 12:41 AM
                                                                                  Ext4 performance deficitBrett2020/12/10 12:08 PM
                                                                                    Ext4 performance deficitanon22020/12/10 12:33 PM
                                                                                  Ext4 performance deficitUngo2020/12/10 12:14 PM
                                                                                    Ext4 performance deficitBrett2020/12/10 01:00 PM
                                                                                      Ext4 performance deficitanonymou52020/12/10 03:20 PM
                                                                                        Ext4 performance deficitBrett2020/12/13 12:04 AM
                                                                                          Ext4 performance deficitMichael S2020/12/13 01:29 AM
                                                                                          Ext4 performance deficitanonymou52020/12/13 02:46 AM
                                                                                          Ext4 performance deficitLinus Torvalds2020/12/13 11:30 AM
                                                                                            Ext4 performance deficitMichael S2020/12/13 12:24 PM
                                                                                              Ext4 performance deficitBrett2020/12/13 06:26 PM
                                                                                            Ext4 performance deficitanon2020/12/13 04:58 PM
                                                                                            Ext4 performance deficitFoo_2020/12/14 03:56 AM
                                                                                              Ext4 performance deficitrwessel2020/12/14 06:16 AM
                                                                                            Ext4 performance deficitBrett2020/12/15 04:59 PM
                                                                                              Ext4 performance deficitBrett2020/12/19 04:23 PM
                                                                                                Ext4 performance deficitanon2020/12/19 04:44 PM
                                                                                                  Ext4 performance deficitBrett2020/12/19 07:47 PM
                                                                                                    Ext4 performance deficitMichael S2020/12/19 11:40 PM
                                                                                                      Ext4 performance deficitLinus Torvalds2020/12/20 11:09 AM
                                                                                                      Ext4 performance deficitBrett2020/12/24 06:08 PM
                                                                                                        Ext4 performance deficitMichael S2020/12/25 01:32 AM
                                                                                      Ext4 performance deficitAdrian2020/12/11 01:42 AM
                                                                                        Ext4 performance deficitanon2020/12/11 12:34 PM
                                                                                          Ext4 performance deficitAdrian2020/12/12 02:46 AM
                                                                                    Ext4 performance deficitGionatan Danti2020/12/10 01:06 PM
                                                                            Ext4 performance deficitJörn Engel2020/12/08 04:19 AM
                                                                    Serving NTFS?Michael S2020/12/07 12:32 AM
                                                            The macOS performance deficitgallier22020/12/07 12:50 AM
                                    The macOS performance deficitAndrey2020/11/30 12:14 PM
                                      The macOS performance deficitUngo2020/11/30 02:58 PM
                                        The macOS performance deficitMaynard Handley2020/11/30 05:13 PM
                                          The macOS performance deficitUngo2020/12/01 12:37 AM
                                            The macOS performance deficitMaynard Handley2020/12/01 09:49 AM
                                        The macOS performance deficitAndrey2020/12/01 12:55 AM
                                          The macOS performance deficitGionatan Danti2020/12/01 01:48 AM
                                          The macOS performance deficitAnne O. Nymous2020/12/01 02:10 AM
                                        The macOS performance deficitRicardo B2020/12/01 07:40 AM
                                          The macOS performance deficitUngo2020/12/01 06:03 PM
                                            The macOS performance deficitRicardo B2020/12/02 03:08 AM
                                            The macOS performance deficitDoug S2020/12/02 10:51 AM
                                              The macOS performance deficitMatt Sayler2020/12/02 05:36 PM
                                              The macOS performance deficitGionatan Danti2020/12/03 01:47 AM
                                              The macOS performance deficitLouis Gerbarg2020/12/03 09:32 AM
                                                The macOS performance deficitDoug S2020/12/03 11:51 AM
                                      The macOS performance deficitMaynard Handley2020/11/30 06:21 PM
                                        The macOS performance deficitAndrey2020/12/01 02:03 AM
                                          I take it no one here has any real storage admin experienceDoug S2020/12/01 09:39 AM
                                            I take it no one here has any real storage admin experienceGionatan Danti2020/12/01 09:58 AM
                                            I take it no one here has any real storage admin experienceAndrey2020/12/01 12:40 PM
                                            I take it no one here has any real storage admin experienceDavid Hess2020/12/02 04:03 AM
                                              I take it no one here has any real storage admin experienceDoug S2020/12/02 10:57 AM
                                                I take it no one here has any real storage admin experienceDavid Hess2020/12/02 03:46 PM
                                        The macOS performance deficitSimon Farnsworth2020/12/01 03:50 AM
                                        The macOS performance deficitRicardo B2020/12/01 11:23 AM
                        The macOS performance deficitanon22020/11/29 01:20 PM
                  The macOS performance deficitDoug S2020/11/29 09:18 AM
                    The macOS performance deficitLinus Torvalds2020/11/29 11:03 AM
                      The macOS performance deficitHoward Chu2020/11/30 09:07 AM
                        The macOS performance deficitLinus Torvalds2020/11/30 11:05 AM
                          The macOS performance deficitrwessel2020/11/30 11:54 AM
                          The macOS performance deficitanon2020/11/30 03:05 PM
                          The macOS performance deficitHoward Chu2020/11/30 07:57 PM
                            The macOS performance deficitLinus Torvalds2020/11/30 10:34 PM
                              The macOS performance deficitBrett2020/11/30 11:34 PM
                                The macOS performance deficitBrett2020/12/01 01:47 PM
                                  The macOS performance deficitLinus Torvalds2020/12/01 02:57 PM
                                    The macOS performance deficitPatrick Schlüter aka gallier22020/12/02 07:31 AM
                                    The macOS performance deficitDoug S2020/12/02 11:07 AM
                                      The macOS performance deficitAdrian2020/12/03 02:50 AM
                                        The macOS performance deficitLinus Torvalds2020/12/03 12:28 PM
                                          The macOS performance deficitAdrian2020/12/03 12:40 PM
                                    The macOS performance deficitBrett2020/12/02 02:49 PM
                                The macOS performance deficitDavid Hess2020/12/01 08:17 PM
                              BitKeeperanon2020/12/01 12:03 AM
                                BitKeeperanon2020/12/01 12:28 AM
                                charlatansanon22020/12/01 02:57 AM
                                  charlatansMichael S2020/12/01 04:30 AM
                                    charlatansanon22020/12/01 05:38 AM
                                      charlatansrwessel2020/12/01 06:18 AM
                                      version controlMichael S2020/12/02 11:50 AM
                                        version controlLinus Torvalds2020/12/02 01:18 PM
                                          Cheap commits are a huge git winCarson2020/12/08 02:05 AM
                                        version controlanon22020/12/02 08:43 PM
                                BitKeeperLinus Torvalds2020/12/01 11:35 AM
                                  BitKeeperanon2020/12/01 03:42 PM
                                    BitKeeperanonymou52020/12/01 05:26 PM
                                    Larry? (NT)anon22020/12/01 08:25 PM
                                      Larry McVoy, the lead developer of bitkeeper (NT)Carson2020/12/08 02:07 AM
                              The macOS performance deficitDoug S2020/12/01 09:42 AM
                            The macOS performance deficitrwessel2020/12/01 05:51 AM
                              The macOS performance deficitanon2020/12/01 02:49 PM
                        LMDB transactionsanon2020/11/30 02:58 PM
                          LMDB transactionsHoward Chu2020/11/30 07:29 PM
                            LMDB transactionsanon2020/11/30 11:44 PM
                              LMDB transactionsHoward Chu2020/12/01 12:44 PM
                                LMDB transactionsanon2020/12/01 02:33 PM
                                  LMDB transactionsHoward Chu2020/12/02 08:52 AM
                                    LMDB transactionsHoward Chu2020/12/02 08:55 AM
                                      LMDB transactionsAnon2020/12/02 10:54 AM
                        Fossil SCM (SQLite based) works pretty well (NT)anonymous22020/11/30 03:50 PM
                      The macOS performance deficitAnon2020/12/01 11:39 PM
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