From: Andrew Morton <akpm@digeo.com>
To: Daniel Phillips <phillips@arcor.de>
Cc: Paolo Ciarrocchi <ciarrocchi@linuxmail.org>,
linux-kernel@vger.kernel.org
Subject: Re: [chatroom benchmark version 1.0.1] Results
Date: Thu, 19 Sep 2002 01:29:30 -0700 [thread overview]
Message-ID: <3D898AEA.7E53DF1E@digeo.com> (raw)
In-Reply-To: E17rwaz-0000vY-00@starship
Daniel Phillips wrote:
>
> Just thought I'd bounce this one over to Andrew as a warm-n-fuzzy.
Is a scheduler test, isn't it?
> There's also some kind of hint that preemption improves throughput
> here.
One needs to treat any test which involves networking to localhost
with caution. They tend to show large (+/- 10% or more) swings
in throughput from one run to the next. Some sort of cache
associativity thing; not sure.
Running the test between separate machines is much, much more repeatable.
We'll get the cpu-local hot pages list code going soon; that may
provide some benefit to this sort of thing. Even on uniprocessor.
next prev parent reply other threads:[~2002-09-19 8:24 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-19 8:06 [chatroom benchmark version 1.0.1] Results Paolo Ciarrocchi
2002-09-19 8:23 ` Daniel Phillips
2002-09-19 8:29 ` Andrew Morton [this message]
2002-09-19 8:39 ` Daniel Phillips
2002-09-23 14:05 ` Rusty Russell
2002-09-19 14:46 ` Martin J. Bligh
-- strict thread matches above, loose matches on Subject: below --
2002-09-19 8:30 Paolo Ciarrocchi
2002-09-19 16:10 Paolo Ciarrocchi
2002-09-20 7:51 Paolo Ciarrocchi
2002-09-20 22:58 Paolo Ciarrocchi
2002-09-22 12:37 Paolo Ciarrocchi
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