From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758034AbcBXPT0 (ORCPT ); Wed, 24 Feb 2016 10:19:26 -0500 Received: from mail.kernel.org ([198.145.29.136]:44931 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752870AbcBXPTW (ORCPT ); Wed, 24 Feb 2016 10:19:22 -0500 Date: Wed, 24 Feb 2016 12:19:18 -0300 From: Arnaldo Carvalho de Melo To: Wang Nan Cc: jolsa@kernel.org, linux-kernel@vger.kernel.org, Arnaldo Carvalho de Melo , Brendan Gregg , Masami Hiramatsu , Namhyung Kim , Li Zefan , pi3orama@163.com Subject: Re: [RFC PATCH 2/2] perf script: Print bpf-output events in 'perf script' Message-ID: <20160224151918.GC8720@kernel.org> References: <1456312845-111583-1-git-send-email-wangnan0@huawei.com> <1456312845-111583-3-git-send-email-wangnan0@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1456312845-111583-3-git-send-email-wangnan0@huawei.com> X-Url: http://acmel.wordpress.com User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Em Wed, Feb 24, 2016 at 11:20:45AM +0000, Wang Nan escreveu: > This patch allows 'perf script' output messages from BPF program. > For example, use test_bpf_output_3.c at the end of this commit > message, > > # ./perf record -e bpf-output/no-inherit,name=evt/ \ > -e ./test_bpf_output_3.c/map:channel.event=evt/ \ > usleep 100000 Trying to test this with 'perf trace', i.e. to shortcircuit record + analysis: [root@jouet bpf]# perf trace -a --ev bpf-output/no-inherit,name=evt/ --ev ./test_bpf_output_3.c/map:channel.event=evt/ --ev 'perf_bpf_probe:*' usleep 100000 Failed to set filter "common_pid != 23954" on event evt with 22 (Invalid argument) Can't we set tracepoint filters on these events? - Arnaldo