From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754682AbdGURIA (ORCPT ); Fri, 21 Jul 2017 13:08:00 -0400 Received: from mail.kernel.org ([198.145.29.99]:59564 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754316AbdGURHx (ORCPT ); Fri, 21 Jul 2017 13:07:53 -0400 DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2143D22B4D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=acme@kernel.org Date: Fri, 21 Jul 2017 14:07:38 -0300 From: Arnaldo Carvalho de Melo To: Jiri Olsa Cc: lkml , Ingo Molnar , Peter Zijlstra , Alexander Shishkin , Namhyung Kim , David Ahern , Andi Kleen Subject: Re: [PATCH 0/4] perf stat: Enable group read of counters Message-ID: <20170721170737.GM4134@kernel.org> References: <20170721121212.21414-1-jolsa@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20170721121212.21414-1-jolsa@kernel.org> X-Url: http://acmel.wordpress.com User-Agent: Mutt/1.8.3 (2017-05-23) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Em Fri, Jul 21, 2017 at 02:12:08PM +0200, Jiri Olsa escreveu: > hi, > sending changes to enable group read of perf counters > for perf stat command. It allows us to read whole group > of counters within single read syscall. > > Also available in here: > git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git > perf/stat_group > > Not sure why we haven't supported yet, but anyway it was > unavailable for some time due to a bug which was fixed > just recently via: > ba5213ae6b88 ("perf/core: Correct event creation with PERF_FORMAT_GROUP") Thanks, applied. - Arnaldo