netdev - Re: all syscalls initially taking 4usec on a P4? Re: nonblocking UDPv4 recvfrom() taking 4usec @ 3GHz?

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Date:	Wed, 21 Feb 2007 11:25:31 -0500
From:	Chuck Ebbert <cebbert@...hat.com>
To:	Arjan van de Ven <arjan@...radead.org>
CC:	bert hubert <bert.hubert@...herlabs.nl>,
	Rick Jones <rick.jones2@...com>,
	Evgeniy Polyakov <johnpol@....mipt.ru>,
	Josef Sipek <jsipek@....cs.sunysb.edu>,
	Andi Kleen <andi@...stfloor.org>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: all syscalls initially taking 4usec on a P4? Re: nonblocking
 	UDPv4 recvfrom() taking 4usec @ 3GHz?

Arjan van de Ven wrote:
> also.. running "vmstat 3" and looking at the "cs" column is interesting;
> it shouldn't be above 50 or so in idle (well not above 10 but our
> userland stinks too much for that)

I average 6 or so with my normal configuration.


Chuck "kill the daemons" Ebbert
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