Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754364Ab2EXNUq (ORCPT ); Thu, 24 May 2012 09:20:46 -0400 Received: from merlin.infradead.org ([205.233.59.134]:59854 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751456Ab2EXNUp (ORCPT ); Thu, 24 May 2012 09:20:45 -0400 Subject: Re: [rfc][patch] select_idle_sibling() inducing bouncing on westmere From: Peter Zijlstra To: Mike Galbraith Cc: lkml , Suresh Siddha , Paul Turner , Arjan Van De Ven In-Reply-To: <1337865431.9783.148.camel@laptop> References: <1337857490.7300.19.camel@marge.simpson.net> <1337865431.9783.148.camel@laptop> Content-Type: text/plain; charset="UTF-8" Date: Thu, 24 May 2012 15:20:41 +0200 Message-ID: <1337865641.9783.149.camel@laptop> Mime-Version: 1.0 X-Mailer: Evolution 2.32.2 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 529 Lines: 12 On Thu, 2012-05-24 at 15:17 +0200, Peter Zijlstra wrote: > For power7 with 4 smt it would end up as 1230 I guess. One more thing, in light of that, can't you simplify the core stuff to be a simple shift as well? map them 123450, does it really matter to pair them off like 103254 ? -- 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/