Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754343Ab2BWRhx (ORCPT ); Thu, 23 Feb 2012 12:37:53 -0500 Received: from mail-gy0-f174.google.com ([209.85.160.174]:50212 "EHLO mail-gy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753026Ab2BWRhv (ORCPT ); Thu, 23 Feb 2012 12:37:51 -0500 Authentication-Results: mr.google.com; spf=pass (google.com: domain of arnaldo.melo@gmail.com designates 10.101.136.7 as permitted sender) smtp.mail=arnaldo.melo@gmail.com; dkim=pass header.i=arnaldo.melo@gmail.com Date: Thu, 23 Feb 2012 15:37:43 -0200 From: Arnaldo Carvalho de Melo To: Pekka Enberg Cc: linux-kernel@vger.kernel.org, Peter Zijlstra , Paul Mackerras , Ingo Molnar Subject: Re: [PATCH] perf report: Add a simple GTK2-based 'perf report' browser Message-ID: <20120223173743.GH25177@infradead.org> References: <1330013922-3332-1-git-send-email-penberg@kernel.org> <20120223162850.GC25177@infradead.org> <20120223163938.GD25177@infradead.org> <1330015504.13624.84.camel@jaguar> <20120223164739.GF25177@infradead.org> <20120223165302.GG25177@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-Url: http://acmel.wordpress.com User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2032 Lines: 50 Em Thu, Feb 23, 2012 at 07:10:48PM +0200, Pekka Enberg escreveu: > On Thu, Feb 23, 2012 at 6:53 PM, Arnaldo Carvalho de Melo wrote: > > Em Thu, Feb 23, 2012 at 02:47:39PM -0200, Arnaldo Carvalho de Melo escreveu: > >> Em Thu, Feb 23, 2012 at 06:45:04PM +0200, Pekka Enberg escreveu: > >> > How big files are we talking about here? > >> > >> 5 MB ones, say. > > > > Nah: > > > > [root@felicio linux]# perf record -a -F 10000 sleep 5m > > [ perf record: Woken up 166 times to write data ] > > [ perf record: Captured and wrote 42.104 MB perf.data (~1839573 samples) > > ] > > [root@felicio linux]# > > [root@felicio linux]# > > [root@felicio linux]# perf report --gtk > > > > ?PID USER ? ? ?PR ?NI ?VIRT ?RES ?SHR S %CPU %MEM ? ?TIME+ ?COMMAND > > 10618 root ? ? ?20 ? 0 ?408m 170m ?49m S ?0.0 ?2.2 ? 0:04.71 perf > > > > [root@felicio linux]# perf report --tui > > > > 10633 root ? ? ?20 ? 0 ?379m 165m ?45m S ?0.0 ?2.1 ? 0:01.15 perf > > Sorry, I don't understand how to interpret your numbers. I was just gauging how much overhead --gtk had over --tui, for this specific file VIRT was "just" 29 MB more, which for todays standards is almost nothing :-) So just for really, really big files this will make a difference. > I used the same "perf record" command here which generated a 26 MB > perf.data file. "perf report --gtk" starts up almost instantly here. Yeah, seems to be OK for most cases, for the ones where it may get in the way, we can use --tui or --stdio or revisit the providing a callback for GTK to ask for just the lines it wants rendered. One thing I saw was that it now defaults to --stdio and then doesn't setup the pager, i.e. just build it with newt-devel, gtk2-devel installed and don't specify --gtk to see what I mean. - 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/