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From: Arjan van de Ven <arjan@infradead.org>
To: bert hubert <bert.hubert@netherlabs.nl>
Cc: Rick Jones <rick.jones2@hp.com>,
	Evgeniy Polyakov <johnpol@2ka.mipt.ru>,
	Josef Sipek <jsipek@fsl.cs.sunysb.edu>,
	Andi Kleen <andi@firstfloor.org>,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: all syscalls initially taking 4usec on a P4? Re: nonblocking  UDPv4 recvfrom() taking 4usec @ 3GHz?
Date: Tue, 20 Feb 2007 23:22:27 +0100	[thread overview]
Message-ID: <1172010148.3531.158.camel@laptopd505.fenrus.org> (raw)
In-Reply-To: <20070220221719.GA16263@outpost.ds9a.nl>


> I'm trying to figure out which processes have the most impact, I had already
> killed anything non-essential. But that still leaves 140 pids.

btw if you have systemtap on your system you can see who is doing evil
with

http://www.fenrus.org/cstop.stp

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)



  reply	other threads:[~2007-02-20 22:22 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20070219231447.GA4400@outpost.ds9a.nl>
     [not found] ` <p73d545drx6.fsf@bingen.suse.de>
2007-02-20 16:27   ` bert hubert
2007-02-20 16:41     ` Evgeniy Polyakov
2007-02-20 17:02       ` bert hubert
2007-02-20 17:11         ` Evgeniy Polyakov
2007-02-20 17:18           ` Evgeniy Polyakov
2007-02-21 11:06           ` Evgeniy Polyakov
2007-02-21 11:34             ` Andi Kleen
2007-02-20 18:42       ` Josef Sipek
2007-02-20 18:48         ` Evgeniy Polyakov
2007-02-20 19:33           ` bert hubert
2007-02-20 19:40             ` Benjamin LaHaise
2007-02-20 20:45               ` bert hubert
2007-02-20 21:02                 ` Stephen Hemminger
2007-02-20 22:02             ` Rick Jones
2007-02-20 22:17               ` bert hubert
2007-02-20 22:22                 ` Arjan van de Ven [this message]
2007-02-21 16:25                   ` Chuck Ebbert
2007-02-20 22:46                 ` Ian McDonald
2007-02-25 10:41       ` Pavel Machek
2007-02-25 17:06         ` Evgeniy Polyakov
2007-02-20 16:57     ` Eric Dumazet

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