Message-ID: <YWxhbg==.5c396bf3e8e65dc7442a4adb6f35702e@1036715544.cotse.net>
Date: Thu, 7 Nov 2002 19:32:24 -0500 (EST)
Subject: Re: [BENCHMARK] 2.5.46-mm1 with contest
From: "Alan Willis" <alan@cotse.net>
To: <linux-kernel@vger.kernel.org>
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> Why?  We are preempting during the generic file write/read routines, I
> bet, which can otherwise be long periods of latency.  CPU is up and I
> bet the throughput is down, but his test is getting the attention it
> wants.

  I'm curious, would running contest after a fresh boot and with profile=2
provide a profile that tells exactly where time is being spent?  Since
about 2.5.45 I've had some strange slow periods, and starting aterm
would take a while, redrawing windows in X would slow down, it 'feels'
like my workstation becomes a laptop that is just waking up.  Sometimes
this is after only a few minutes of inactivity, or after switching
virtual desktops in kde, or when I have alot of aterm instances running.
 Normal activity for me involves untarring and compiling lots of
software on a regular basis, on a 1.2Ghz celeron and 256mb of mem.  I'm
using 2.5.46+reiser4 patches at the moment.  I'll boot to 2.5.46-mm1
shortly, but I'd love to use reiser4 with akpm's tree though.

Would oprofile help figure out why aterm gets so effing slow at times?
I guess I need to sit down and figure out how to use it.

-alan


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