[haiku-commits] Re: r33647 - in haiku/trunk: headers/private/kernel src/system/kernel
- From: "Axel Dörfler" <axeld@xxxxxxxxxxxxxxxx>
- To: haiku-commits@xxxxxxxxxxxxx
- Date: Mon, 19 Oct 2009 10:03:17 +0000
Ingo Weinhold <ingo_weinhold@xxxxxx> wrote:
> On 2009-10-19 at 08:16:54 [+0800], axeld@xxxxxxxxxxxxxxxx wrote:
> > Author: axeld
> > Date: 2009-10-19 02:16:54 +0200 (Mon, 19 Oct 2009)
> > New Revision: 33647
> > Changeset: http://dev.haiku-os.org/changeset/33647/haiku
> >
> > Modified:
> > haiku/trunk/headers/private/kernel/lock.h
> > haiku/trunk/src/system/kernel/lock.cpp
> > Log:
> > * Reverted r33643 - while it doubled the performance for my test
> > case (with
> > high contention of the read lock (I experimented with the VM page
> > mapping
> > lock)), it actually hurt the compile performance pretty
> > obviously.
> I hope you're testing with KDEBUG=0, since otherwise the results are
> not
> really saying much. Though it's obviously a good thing, when things
> improve
> with KDEBUG=1 as well.
Good thinking! I completely forgot about that, and I'm actually always
testing with KDEBUG=1 (and tracing, for that matter). Will fix that,
and try again.
Bye,
Axel.
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