From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755394Ab1ALRHd (ORCPT ); Wed, 12 Jan 2011 12:07:33 -0500 Received: from casper.infradead.org ([85.118.1.10]:59338 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755335Ab1ALRHa (ORCPT ); Wed, 12 Jan 2011 12:07:30 -0500 Date: Wed, 12 Jan 2011 15:07:17 -0200 From: Arnaldo Carvalho de Melo To: Kirill Smelkov Cc: linux-kernel@vger.kernel.org, Frederic Weisbecker , Ingo Molnar , Mike Galbraith , Paul Mackerras , Peter Zijlstra , Stephane Eranian , Tom Zanussi Subject: Re: Q: perf log mode? Message-ID: <20110112170716.GB24598@ghostprotocols.net> References: <20110112140613.GA11698@tugrik.mns.mnsspb.ru> <20110112152112.GE11968@ghostprotocols.net> <20110112163131.GA2924@tugrik.mns.mnsspb.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20110112163131.GA2924@tugrik.mns.mnsspb.ru> X-Url: http://acmel.wordpress.com User-Agent: Mutt/1.5.21 (2010-09-15) X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Em Wed, Jan 12, 2011 at 07:31:32PM +0300, Kirill Smelkov escreveu: > As I wrote in my first mail, maybe a bit not explicitly (sorry then), the > latency is introduced in perf-record. I'm telling this because I've Ok, all is well and we'll tune the kernel to do it as we need using your patch. > visually monitored perf-record output to console (yes, binary output, > but it does not matter) to see whether there is output progress at all. > > After initial startup there was no progress for long time and then bunch > of data after 30-40 seconds. > > > And with the patch posted inline within reply-to-Peter mail, the delay > goes away, so could you please consider applying it? I will.