Messages in this thread | | | From | "Kai" <> | Subject | Re: Serious performance regression in Wine applications and Linux 2.6.24.* | Date | Thu, 03 Apr 2008 07:04:11 -0700 |
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On Thu, 27 Mar 2008 10:17:14 +0100, "Ingo Molnar" <mingo@elte.hu> said: > > * Kai <epimetreus@fastmail.fm> wrote: > > > The issue only shows with Age of Wonders II and AoW Shadow Magic. > > > > Every version of wine from 0.9.55 to 0.9.58, including several > > intermediate git builds. > > > > Xorg version 1.4.0.90, and a couple other versions (the problems has > > persisted across a couple updates of Xorg) > > > > Hardware rendering; using the prop. nV driver; updating that also > > doesn't affect the issue, nor does retaining the same version. > > could you run this script while such a slowdown is really prominent: > > http://people.redhat.com/mingo/cfs-scheduler/tools/cfs-debug-info.sh > > and send me the output it generates? The output is the most useful if > you do this on a kernel that has CONFIG_SCHED_DEBUG=y and > CONFIG_SCHEDSTATS=y enabled. > > on the off chance that this issue has been fixed in the soon-to-be > 2.6.25 kernel, you might also want to try x86.git/latest, which is based > on the latest Linus tree and has all relevant x86 fixes and improvements > added as well: > > http://people.redhat.com/mingo/x86.git/README > > several of the changes can affect performance. > > a third (and most comprehensive) way to debug this would be to send me a > scheduler trace of such a slowdown, you can generate a scheduler trace > the following way: > > http://people.redhat.com/mingo/sched-devel.git/readme-tracer.txt > > but we can probably give a first estimation based on the cfs-debug-info > output already. Btw., you can combine the scheduler and the x86 git tree > into a temporary unified tree by doing these two commands: > > git-checkout -b tmp x86/latest > git-merge sched-devel/latest > > (run "make oldconfig" to pick up the new config options.)
Okay, so I don't know a lot about git; I tried following the instructions in the readme at http://people.redhat.com/mingo/x86.git/README to get a latest x86 tree, and merge it with sched-devel/latest using the commands git-checkout -b tmp x86/latest and git-merge sched-devel/latest:
mkdir linux.trees.git || exit -1 cd linux.trees.git git-init-db git-remote add linus git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git git-remote add x86 git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86.git git-remote update git-checkout -b tmp x86/latest git-merge sched-devel/latest
Then I copied over a config file and updated it, but building failed shortly into the process, with some errors about missing a } before ;, and excess elements in scalar initializer, in file arch/x86/kernel/init_task.cc.. anyway, I tried to update again, using git-remote update, but it kept giving me this output:
Updating linus Updating sched-devel fatal: The remote end hung up unexpectedly fetch sched-devel: command returned error: 128
So I'm just going to test using 2.6.25-rc8-git2; however, can someone also give me the proper sequence of commands to get a working tree as Ingo Molnar requested, so I can test that way, too? Sorry to be a pain.
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