Re: [BENCHMARK] 2.5.46-mm1 with contest

From: Alan Willis (alan@cotse.net)
Date: Thu Nov 07 2002 - 19:32:24 EST


> 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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