From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753114AbcEJUdA (ORCPT ); Tue, 10 May 2016 16:33:00 -0400 Received: from terminus.zytor.com ([198.137.202.10]:58232 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752386AbcEJUc5 (ORCPT ); Tue, 10 May 2016 16:32:57 -0400 Date: Tue, 10 May 2016 13:32:38 -0700 From: tip-bot for Arnaldo Carvalho de Melo Message-ID: Cc: adrian.hunter@intel.com, jolsa@kernel.org, mingo@kernel.org, wangnan0@huawei.com, acme@redhat.com, hpa@zytor.com, linux-kernel@vger.kernel.org, dsahern@gmail.com, milian.wolff@kdab.com, namhyung@kernel.org, tglx@linutronix.de Reply-To: acme@redhat.com, hpa@zytor.com, adrian.hunter@intel.com, wangnan0@huawei.com, jolsa@kernel.org, mingo@kernel.org, namhyung@kernel.org, tglx@linutronix.de, linux-kernel@vger.kernel.org, milian.wolff@kdab.com, dsahern@gmail.com To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/core] perf evsel: Print state of perf_event_attr.write_backward Git-Commit-ID: 0a241ef4a27a00807fefdf913da104a4534c606a X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 0a241ef4a27a00807fefdf913da104a4534c606a Gitweb: http://git.kernel.org/tip/0a241ef4a27a00807fefdf913da104a4534c606a Author: Arnaldo Carvalho de Melo AuthorDate: Mon, 9 May 2016 18:08:33 -0300 Committer: Arnaldo Carvalho de Melo CommitDate: Mon, 9 May 2016 18:11:27 -0300 perf evsel: Print state of perf_event_attr.write_backward Now we can see if it is set when using verbose mode in various tools, such as 'perf test': # perf test -vv back 45: Test backward reading from ring buffer : --- start --- ------------------------------------------------------------ perf_event_attr: type 2 size 112 config 0x98 { sample_period, sample_freq } 1 sample_type IP|TID|TIME|CPU|PERIOD|RAW disabled 1 mmap 1 comm 1 task 1 sample_id_all 1 exclude_guest 1 mmap2 1 comm_exec 1 write_backward 1 ------------------------------------------------------------ sys_perf_event_open: pid 20911 cpu -1 group_fd -1 flags 0x8 ---- end ---- Test backward reading from ring buffer: Ok # Cc: Adrian Hunter Cc: David Ahern Cc: Jiri Olsa Cc: Milian Wolff Cc: Namhyung Kim Cc: Wang Nan Link: http://lkml.kernel.org/n/tip-kxv05kv9qwl5of7rzfeiiwbv@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/evsel.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 3371721..a23f547 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -1316,6 +1316,7 @@ int perf_event_attr__fprintf(FILE *fp, struct perf_event_attr *attr, PRINT_ATTRf(comm_exec, p_unsigned); PRINT_ATTRf(use_clockid, p_unsigned); PRINT_ATTRf(context_switch, p_unsigned); + PRINT_ATTRf(write_backward, p_unsigned); PRINT_ATTRn("{ wakeup_events, wakeup_watermark }", wakeup_events, p_unsigned); PRINT_ATTRf(bp_type, p_unsigned);