linux-kernel - Re: [PATCH] Migration of Standard Timers

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Date:	Tue, 19 Sep 2006 12:33:37 -0400
From:	Lee Revell <rlrevell@...-job.com>
To:	Dimitri Sivanich <sivanich@....com>
Cc:	linux-kernel@...r.kernel.org, akpm@...l.org,
	Thomas Gleixner <tglx@...utronix.de>, Andi Kleen <ak@...e.de>,
	Jes Sorensen <jes@....com>
Subject: Re: [PATCH] Migration of Standard Timers

On Tue, 2006-09-19 at 10:29 -0500, Dimitri Sivanich wrote:
> This patch allows the user to migrate currently queued
> standard timers from one cpu to another.  Migrating
> timers off of select cpus allows those cpus to run
> time critical threads with minimal timer induced latency
> (which can reach 100's of usec for a single timer as shown
> on an X86_64 test machine), thereby improving overall
> determinance on those selected cpus. 

Which driver or subsystem is doing 100s of usecs of work in a timer?
Shouldn't another mechanism like a workqueue be used instead?

Lee

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