From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_PASS,T_DKIMWL_WL_HIGH,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5FB71C433F4 for ; Thu, 30 Aug 2018 18:50:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1D97720661 for ; Thu, 30 Aug 2018 18:50:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="yPQopcs+" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1D97720661 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727505AbeH3WyG (ORCPT ); Thu, 30 Aug 2018 18:54:06 -0400 Received: from mail.kernel.org ([198.145.29.99]:45798 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727337AbeH3WyG (ORCPT ); Thu, 30 Aug 2018 18:54:06 -0400 Received: from jouet.infradead.org (unknown [189.43.51.114]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 0E8B7205F4; Thu, 30 Aug 2018 18:50:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1535655033; bh=n9F6AzQMSS0Zpr7/zZgP12eOlMwdFpq3YhYoAGdW49I=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=yPQopcs+BXtSUpQBdZGV9wLiBHCZ+CVI0U7LrivdFFUVkxNbcaDAZhyx5zNndNHtu BU4dSdfB2F2ioay1qmrC6tVX1ksWi2jsDG2G6rAIYu1OnhG4YFxOmQQ1V9NramSqtD wLKcDeyPViVPwhSYB6W5tqO8/f7pWbXib56JKQlY= Received: by jouet.infradead.org (Postfix, from userid 1000) id 0F18B141C3F; Thu, 30 Aug 2018 15:50:27 -0300 (-03) Date: Thu, 30 Aug 2018 15:50:27 -0300 From: Arnaldo Carvalho de Melo To: Steven Rostedt Cc: Ravi Bangoria , srikar@linux.vnet.ibm.com, oleg@redhat.com, mhiramat@kernel.org, liu.song.a23@gmail.com, peterz@infradead.org, mingo@redhat.com, alexander.shishkin@linux.intel.com, jolsa@redhat.com, namhyung@kernel.org, linux-kernel@vger.kernel.org, ananth@linux.vnet.ibm.com, alexis.berlemont@gmail.com, naveen.n.rao@linux.vnet.ibm.com, linux-arm-kernel@lists.infradead.org, linux-mips@linux-mips.org, linux@armlinux.org.uk, ralf@linux-mips.org, paul.burton@mips.com Subject: Re: [PATCH v9 4/4] perf probe: Support SDT markers having reference counter (semaphore) Message-ID: <20180830185026.GI6097@kernel.org> References: <20180820044250.11659-1-ravi.bangoria@linux.ibm.com> <20180820044250.11659-5-ravi.bangoria@linux.ibm.com> <20180830144531.3011e185@gandalf.local.home> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180830144531.3011e185@gandalf.local.home> X-Url: http://acmel.wordpress.com User-Agent: Mutt/1.9.2 (2017-12-15) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Em Thu, Aug 30, 2018 at 02:45:31PM -0400, Steven Rostedt escreveu: > > Arnaldo, > > I'm going to be playing with some of the probe code which may conflict > with these patches, so I would like to pull these in my tree. But this > patch requires an Acked-by from you before I can pull it in. > > You OK with this? Acked-by: Arnaldo Carvalho de Melo > Thanks! > > -- Steve > > > On Mon, 20 Aug 2018 10:12:50 +0530 > Ravi Bangoria wrote: > > > With this, perf buildid-cache will save SDT markers with reference > > counter in probe cache. Perf probe will be able to probe markers > > having reference counter. Ex, > > > > # readelf -n /tmp/tick | grep -A1 loop2 > > Name: loop2 > > ... Semaphore: 0x0000000010020036 > > > > # ./perf buildid-cache --add /tmp/tick > > # ./perf probe sdt_tick:loop2 > > # ./perf stat -e sdt_tick:loop2 /tmp/tick > > hi: 0 > > hi: 1 > > hi: 2 > > ^C > > Performance counter stats for '/tmp/tick': > > 3 sdt_tick:loop2 > > 2.561851452 seconds time elapsed > > > > Signed-off-by: Ravi Bangoria > > Acked-by: Masami Hiramatsu > > Acked-by: Srikar Dronamraju