Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932150Ab2EGTRP (ORCPT ); Mon, 7 May 2012 15:17:15 -0400 Received: from www.linutronix.de ([62.245.132.108]:41662 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932132Ab2EGTRM (ORCPT ); Mon, 7 May 2012 15:17:12 -0400 Date: Mon, 7 May 2012 21:17:10 +0200 (CEST) From: Thomas Gleixner To: Mike Galbraith cc: LKML Subject: Re: [PATCH] clockevents: Per cpu tick skew boot option In-Reply-To: <1336309127.7351.13.camel@marge.simpson.net> Message-ID: References: <1336309127.7351.13.camel@marge.simpson.net> User-Agent: Alpine 2.02 (LFD 1266 2009-07-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 665 Lines: 16 On Sun, 6 May 2012, Mike Galbraith wrote: > > + skew_tick= [KNL] Offset the periodic timer tick per cpu to mitigate > + xtime_lock contention on larger systems. Note: increases > + power consumption, and should only be enabled if running > + jitter sensitive (HPC/RT) workloads. > + The "=" is wrong as skew_tick should not take parameters. It's disabled by default. So "skew_tick" simply enables it, right ? -- 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/