From: Andi Kleen <ak@suse.de>
To: Denis Vlasenko <vda@port.imtp.ilyichevsk.odessa.ua>
Cc: Andi Kleen <ak@suse.de>, Andrew Morton <akpm@digeo.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] 2/2 2.5.45 cleanup & add original copy_ro/from_user
Date: Sat, 2 Nov 2002 13:23:12 +0100 [thread overview]
Message-ID: <20021102132312.A563@wotan.suse.de> (raw)
In-Reply-To: <200211021216.gA2CGEp24534@Port.imtp.ilyichevsk.odessa.ua>
> It's easy to time memcpy() but harder to measure susequent
> cache misses when copied data gets accessed. We can read it
> back after memcpy and measure memcpy()+read, but is entire
> copy gets used immediately after memcpy() in real world usage?
> We're in benchmarking hell :(
You test common operations, like pipe bandwidth or ioctls.
-Andi
next prev parent reply other threads:[~2002-11-02 12:16 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20021102025838.220E.AT541@columbia.edu.suse.lists.linux.kernel>
[not found] ` <3DC3A9C0.7979C276@digeo.com.suse.lists.linux.kernel>
2002-11-02 10:58 ` [PATCH] 2/2 2.5.45 cleanup & add original copy_ro/from_user Andi Kleen
2002-11-02 11:03 ` Andrew Morton
2002-11-02 16:55 ` Denis Vlasenko
2002-11-02 12:09 ` Andi Kleen
2002-11-02 17:08 ` Denis Vlasenko
2002-11-02 12:23 ` Andi Kleen [this message]
2002-11-04 3:36 Akira Tsukamoto
-- strict thread matches above, loose matches on Subject: below --
2002-11-02 8:06 Akira Tsukamoto
2002-11-02 10:32 ` Andrew Morton
2002-11-02 11:07 ` Akira Tsukamoto
2002-11-02 18:13 ` Andrew Morton
2002-11-03 2:43 ` Akira Tsukamoto
2002-11-03 4:04 ` Andrew Morton
2002-11-03 2:43 ` Akira Tsukamoto
2002-11-03 2:57 ` Akira Tsukamoto
2002-11-03 21:24 ` Dave Jones
2002-11-03 22:22 ` Andries Brouwer
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