linux-kernel - Re: [discussion]sched: a rough proposal to enable power saving in scheduler

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20120820155203.GB29974@srcf.ucam.org>
Date:	Mon, 20 Aug 2012 16:52:03 +0100
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Christoph Lameter <cl@...ux.com>
Cc:	Arjan van de Ven <arjan@...ux.intel.com>,
	Alex Shi <alex.shi@...el.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Suresh Siddha <suresh.b.siddha@...el.com>,
	vincent.guittot@...aro.org, svaidy@...ux.vnet.ibm.com,
	Ingo Molnar <mingo@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [discussion]sched: a rough proposal to enable power saving in
 scheduler

On Mon, Aug 20, 2012 at 03:47:54PM +0000, Christoph Lameter wrote:

> So please make sure that there are obvious and easy ways to switch this
> stuff off or provide "low latency" know that keeps the system from
> assuming that idle time means that full performance is not needed.

That seems like an issue for cpuidle, not the scheduler. Does pm_qos not 
already do what you want?

-- 
Matthew Garrett | mjg59@...f.ucam.org
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/