Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752327Ab3IRP7T (ORCPT ); Wed, 18 Sep 2013 11:59:19 -0400 Received: from mx1.redhat.com ([209.132.183.28]:50577 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751218Ab3IRP7S (ORCPT ); Wed, 18 Sep 2013 11:59:18 -0400 Date: Wed, 18 Sep 2013 12:58:55 -0300 From: Arnaldo Carvalho de Melo To: Namhyung Kim Cc: Ingo Molnar , Frederic Weisbecker , LKML , Jiri Olsa , David Ahern , Ingo Molnar , Peter Zijlstra , Stephane Eranian , Linus Torvalds Subject: Re: [PATCH 0/4] perf tools: New comm infrastructure Message-ID: <20130918155855.GD3891@infradead.org> References: <1379017783-27032-1-git-send-email-fweisbec@gmail.com> <20130912203658.GA3216@gmail.com> <20130913124354.GB4844@somewhere> <20130914061148.GF364@gmail.com> <87li2wq9gx.fsf@sejong.aot.lge.com> <20130918142038.GA3891@infradead.org> <20130918151253.GC3891@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20130918151253.GC3891@infradead.org> X-Url: http://acmel.wordpress.com User-Agent: Mutt/1.5.20 (2009-12-10) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1931 Lines: 44 Em Wed, Sep 18, 2013 at 12:12:53PM -0300, Arnaldo Carvalho de Melo escreveu: > Em Wed, Sep 18, 2013 at 11:20:38AM -0300, Arnaldo Carvalho de Melo escreveu: > > Em Tue, Sep 17, 2013 at 02:54:22PM +0900, Namhyung Kim escreveu: > > > On Sat, 14 Sep 2013 08:11:49 +0200, Ingo Molnar wrote: > > > > Well, it was the 100,000+ step linear list walk that was causing 90% of > > > > the slowness here. Namhyung's patch should dramatically improve that. I > > > > guess time for someone to post a combined tree so that it can be tested > > > > all together? > Cherry picking just: > > perf callchain: Convert children list to rbtree > > I go from too-long-to-wait to: > > [root@sandy ~]# echo performance > /sys/devices/system/cpu/cpu3/cpufreq/scaling_governor > [acme@sandy linux]$ taskset -c 3 perf stat --null --sync --repeat 3 perf report -i perf.data.make-j8-kernel > /dev/null > Performance counter stats for 'perf report -i perf.data.make-j8-kernel' (3 runs): > 79.158464654 seconds time elapsed ( +- 0.15% ) > [acme@sandy linux]$ > [acme@sandy linux]$ ls -lah perf.data.make-j8-kernel > -rw-------. 1 acme acme 2.3G Sep 16 11:56 perf.data.make-j8-kernel And with the others, fixed up to cope with PERF_RECORD_MMAP2, except the progress bar updating: [acme@sandy linux]$ taskset -c 3 perf stat --null --sync --repeat 3 perf report -i perf.data.make-j8-kernel > /dev/null Performance counter stats for 'perf report -i perf.data.make-j8-kernel' (3 runs): 55.697701530 seconds time elapsed ( +- 0.13% ) [acme@sandy linux]$ Branch perf/callchain-v4 on my tree. - Arnaldo -- 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/