From: Andi Kleen <andi@firstfloor.org>
To: "lode leroy" <lode_leroy@hotmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] memchr (trivial) optimization
Date: 22 Aug 2007 12:56:57 +0200 [thread overview]
Message-ID: <p73bqczzvk6.fsf@bingen.suse.de> (raw)
In-Reply-To: <BAY105-F323FF3DC8E6C544A2BBE98FFD50@phx.gbl>
"lode leroy" <lode_leroy@hotmail.com> writes:
> While profiling something completely unrelated, I noticed
> that on the workloads I used memchr for, I saw a 30%-40% improvement
> in performance, with the following trivial changes...
> (basically, it saves 3 operations for each call)
What kind of workload? I didn't think anything in tree
was memchr intensive.
-Andi
next prev parent reply other threads:[~2007-08-22 10:03 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-22 9:34 [PATCH] memchr (trivial) optimization lode leroy
2007-08-22 10:56 ` Andi Kleen [this message]
2007-08-23 0:13 ` Ingo Oeser
2007-08-24 0:13 ` Matt Mackall
2007-08-24 1:03 ` Jeremy Fitzhardinge
2007-08-24 2:19 ` Matt Mackall
2007-08-24 12:54 ` Jan Engelhardt
2007-08-24 15:57 ` Matt Mackall
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