Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758463AbZFJAEO (ORCPT ); Tue, 9 Jun 2009 20:04:14 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754179AbZFJAD7 (ORCPT ); Tue, 9 Jun 2009 20:03:59 -0400 Received: from bilbo.ozlabs.org ([203.10.76.25]:49437 "EHLO bilbo.ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754162AbZFJAD7 (ORCPT ); Tue, 9 Jun 2009 20:03:59 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <18990.61792.721530.554561@cargo.ozlabs.ibm.com> Date: Wed, 10 Jun 2009 09:33:52 +1000 From: Paul Mackerras To: Ingo Molnar Cc: Nick Piggin , Linus Torvalds , Rusty Russell , Jeremy Fitzhardinge , "H. Peter Anvin" , Thomas Gleixner , Linux Kernel Mailing List , Andrew Morton , Peter Zijlstra , Avi Kivity , Arjan van de Ven Subject: Re: [benchmark] 1% performance overhead of paravirt_ops on native kernels In-Reply-To: <20090609122529.GD25586@elte.hu> References: <4A0B62F7.5030802@goop.org> <200906032208.28061.rusty@rustcorp.com.au> <200906041554.37102.rusty@rustcorp.com.au> <20090609093918.GC16940@wotan.suse.de> <20090609111719.GA4463@elte.hu> <20090609121055.GA9158@wotan.suse.de> <20090609122529.GD25586@elte.hu> X-Mailer: VM 8.0.12 under 22.2.1 (i486-pc-linux-gnu) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 432 Lines: 13 Ingo Molnar writes: > I did this fork overhead measurement some time ago, using > perfcounters and 'perf': Could you post the program? I'd like to try it on some systems here. Paul. -- 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/