linux-kernel - Re: [PATCH v3] sched: modify how to compute a slice and check a preemptability

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Message-ID: <1437363758.3489.58.camel@gmail.com>
Date:	Mon, 20 Jul 2015 05:42:38 +0200
From:	Mike Galbraith <umgwanakikbuti@...il.com>
To:	Byungchul Park <byungchul.park@....com>
Cc:	mingo@...nel.org, peterz@...radead.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] sched: modify how to compute a slice and check a
 preemptability

On Mon, 2015-07-20 at 09:34 +0900, Byungchul Park wrote:

> yes, i also think that a preemption granularity has little meaning, atually 
> because of tick granularity.

See HR_TICK.  It's not cheap though, why it's default off.

	-Mike

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