linux-kernel - Re: [PATCH] sched: high-res preemption tick

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Message-Id: <1192270269.7221.4.camel@Homer.simpson.net>
Date:	Sat, 13 Oct 2007 12:11:09 +0200
From:	Mike Galbraith <efault@....de>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH] sched: high-res preemption tick

On Sat, 2007-10-13 at 11:17 +0200, Peter Zijlstra wrote:

> Also, this seems to suggest iperf would like SCHED_BATCH.

Yes.  Throughput falls as preemption climbs.

	-Mike

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