From: "Zhang, Yanmin" <yanmin_zhang@linux.intel.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: LKML <linux-kernel@vger.kernel.org>, mingo@elte.hu
Subject: Re: aim7 -30% regression in 2.6.24-rc1
Date: Mon, 29 Oct 2007 08:15:33 +0800 [thread overview]
Message-ID: <1193616933.3019.181.camel@ymzhang> (raw)
In-Reply-To: <1193392422.6914.25.camel@twins>
On Fri, 2007-10-26 at 11:53 +0200, Peter Zijlstra wrote:
> On Fri, 2007-10-26 at 17:43 +0800, Zhang, Yanmin wrote:
> > I tested 2.6.24-rc1 on my x86_64 machine which has 2 quad-core processors.
> >
> > Comparing with 2.6.23, aim7 has about -30% regression. I did a bisect and found
> > patch http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=b5869ce7f68b233ceb81465a7644be0d9a5f3dbb
> > caused the issue.
>
> Bit weird that you point to a merge commit, and not an actual patch. Are
> you sure git bisect pointed at this one?
When I did a bisect, kernel couldn't boot and my testing log showed
it's at b5869ce7f68b233ceb81465a7644be0d9a5f3dbb. So I did a manual
checkout.
#git clone ...
#git pull ...
#git checkout b5869ce7f68b233ceb81465a7644be0d9a5f3dbb
Then, compiled kernel and tested it. Then, reversed above patch and recompiled/retested it.
If I ran git log, I could see this tag in the list.
-yanmin
next prev parent reply other threads:[~2007-10-29 0:17 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-26 9:43 aim7 -30% regression in 2.6.24-rc1 Zhang, Yanmin
2007-10-26 9:53 ` Peter Zijlstra
2007-10-29 0:15 ` Zhang, Yanmin [this message]
2007-10-26 11:23 ` Ingo Molnar
2007-10-29 2:22 ` Zhang, Yanmin
2007-10-29 9:37 ` Zhang, Yanmin
2007-10-30 2:12 ` Zhang, Yanmin
2007-10-30 7:26 ` Ingo Molnar
2007-10-30 8:36 ` Zhang, Yanmin
2007-10-31 9:57 ` Zhang, Yanmin
2007-10-31 10:30 ` Peter Zijlstra
2007-11-01 8:58 ` Ingo Molnar
[not found] ` <1193922687.27652.279.camel@twins>
[not found] ` <20071101150049.GB4044@elte.hu>
2007-11-01 15:29 ` Peter Zijlstra
2007-11-01 15:36 ` Ingo Molnar
2007-11-01 9:34 ` Zhang, Yanmin
2007-11-01 10:02 ` Cyrus Massoumi
2007-11-05 1:24 ` Zhang, Yanmin
2007-11-05 9:37 ` Cyrus Massoumi
2007-11-07 5:30 ` Zhang, Yanmin
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