Message-ID: <1329761755.2293.373.camel@twins>
Subject: Re: sched: Avoid SMT siblings in select_idle_sibling() if possible
From: Peter Zijlstra <peterz@infradead.org>
To: Mike Galbraith <efault@gmx.de>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>,
        linux-kernel <linux-kernel@vger.kernel.org>,
        Ingo Molnar <mingo@elte.hu>, Paul Turner <pjt@google.com>,
        Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>
Date: Mon, 20 Feb 2012 19:15:55 +0100
In-Reply-To: <1329761661.6276.146.camel@marge.simpson.net>
References: <1321350377.1421.55.camel@twins>
	 <1321406062.16760.60.camel@sbsiddha-desk.sc.intel.com>
	 <1321435455.5072.64.camel@marge.simson.net>
	 <1321468646.11680.2.camel@sbsiddha-desk.sc.intel.com>
	 <1321495153.5100.7.camel@marge.simson.net>
	 <1321544313.6308.25.camel@marge.simson.net>
	 <1321545376.2495.1.camel@laptop>
	 <1321547917.6308.48.camel@marge.simson.net>
	 <1321551381.15339.21.camel@sbsiddha-desk.sc.intel.com>
	 <1321629267.7080.13.camel@marge.simson.net>
	 <1329748861.2293.345.camel@twins>
	 <1329761661.6276.146.camel@marge.simpson.net>
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7BIT
Mime-Version: 1.0
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 629
Lines: 13

On Mon, 2012-02-20 at 19:14 +0100, Mike Galbraith wrote:
> I thought this was pretty much sorted.  We want to prefer core over
> sibling, because on at laest some modern CPUs with L3, siblings suck
> rocks. 

Yeah, I since figured out how its supposed (and supposedly) does work.
Suresh was a bit too clever and forgot to put a comment in since clearly
it was obvious at the time ;-)
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/