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From: Robert Watson <rwatson@FreeBSD.org>
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To: Kris Kennaway <kris@obsecurity.org>
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Cc: Sven Petai <hadara@bsd.ee>, performance@freebsd.org, current@freebsd.org,
	csjp@FreeBSD.org
Subject: Re: Fine-grained locking for POSIX local sockets (UNIX domain
	sockets)
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On Sun, 7 May 2006, Kris Kennaway wrote:

>> Typically, I do 12 runs of supersmack in each configuration, and discard 
>> the first 2 runs in which the cache and scheduler (etc) are still settling, 
>> as I'm interested in the steady state.
>
> Yeah, forgot to mention that too.  Also keeping in mind that mysql 
> performance is not time-constant, e.g. you should restart it in between test 
> configurations instead of comparing early and late times.

Yeah, very much so -- my normal test procedure is to reboot between runs, 
allowing the first to cycles in the test to warm things up.

Robert N M Watson