From: Andrew Morton <akpm@osdl.org>
To: Peter Chubb <peterc@gelato.unsw.edu.au>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] 2.6.0-test4 -- add context switch counters
Date: Tue, 26 Aug 2003 18:18:07 -0700 [thread overview]
Message-ID: <20030826181807.1edb8c48.akpm@osdl.org> (raw)
In-Reply-To: <16204.520.61149.961640@wombat.disy.cse.unsw.edu.au>
Peter Chubb <peterc@gelato.unsw.edu.au> wrote:
>
> Currently, the context switch counters reported by getrusage() are
> always zero. The appended patch adds fields to struct task_struct to
> count context switches, and adds code to do the counting.
>
> The patch adds 4 longs to struct task struct, and a single addition to
> the fast path in schedule().
OK... Why is this useful? A bit of googling doesn't show much interest in
it.
What apps should be reporting this info? /usr/bin/time?
next prev parent reply other threads:[~2003-08-27 1:15 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-27 0:57 Peter Chubb
2003-08-27 1:18 ` Andrew Morton [this message]
2003-08-27 1:29 ` Mike Fedyk
2003-08-27 1:52 ` Peter Chubb
2003-08-27 7:16 ` William Lee Irwin III
2003-08-27 7:39 ` Peter Chubb
2003-08-27 7:51 ` William Lee Irwin III
2003-08-28 16:55 ` Mike Fedyk
2003-08-28 17:07 ` William Lee Irwin III
2003-08-28 17:09 ` William Lee Irwin III
2003-08-28 17:48 ` Mike Fedyk
2003-08-27 8:10 ` William Lee Irwin III
2003-08-27 1:50 ` Peter Chubb
2003-08-27 7:26 ` William Lee Irwin III
2003-11-18 1:18 ` William Lee Irwin III
2003-08-27 14:41 ` bert hubert
2003-08-27 6:54 ` William Lee Irwin III
2003-08-27 15:52 ` Larry McVoy
2003-08-27 16:01 ` William Lee Irwin III
2003-08-27 16:09 ` Larry McVoy
2003-08-27 17:57 ` William Lee Irwin III
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