From: Ingo Molnar <mingo@elte.hu>
To: Tim Bird <tim.bird@am.sony.com>, Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: "Steven Rostedt" <rostedt@goodmis.org>,
"Frederic Weisbecker" <fweisbec@gmail.com>,
"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
"linux kernel" <linux-kernel@vger.kernel.org>,
linux-arm-kernel <linux-arm-kernel@lists.arm.linux.org.uk>
Subject: Re: How to use a different sched_clock() for ftrace on omap?
Date: Thu, 7 May 2009 10:51:16 +0200 [thread overview]
Message-ID: <20090507085116.GC19133@elte.hu> (raw)
In-Reply-To: <4A022333.8030200@am.sony.com>
* Tim Bird <tim.bird@am.sony.com> wrote:
> Hi all,
>
> I've worked up a replacement sched_clock for ftrace on my omap
> platform. The current sched_clock, based on the 32K timer, has low
> resolution and doesn't provide very useful results.
hm, why dont you replace the real sched_clock() with it? High
resolution sched_clock() gives (much!) better scheduling, better
fairness, etc.
Ingo
next prev parent reply other threads:[~2009-05-07 8:51 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-06 23:54 How to use a different sched_clock() for ftrace on omap? Tim Bird
2009-05-07 0:34 ` Ryan Mallon
2009-05-07 8:51 ` Ingo Molnar [this message]
2009-05-07 13:56 ` Steven Rostedt
2009-05-07 13:59 ` Ingo Molnar
[not found] <cyZbZ-7Eg-9@gated-at.bofh.it>
2009-05-07 14:08 ` Kevin Hilman
2009-05-07 17:19 ` Tim Bird
2009-05-07 17:34 ` Kevin Hilman
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