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=-11.4 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_PASS,UNWANTED_LANGUAGE_BODY, USER_AGENT_GIT 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 4C708C43387 for ; Tue, 18 Dec 2018 22:13:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1AB2221871 for ; Tue, 18 Dec 2018 22:13:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1545171217; bh=kXTGFgWkX4k/WPSSsHoyef0cWnrgERpZ+c7OXoXnr1U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=eASHOh1NKquAfydsbmTVsfsD6QoMDgvBvwItLT6ovUt2woxbVSMX825fPHdOlW+vr HTenzabjpQcb/P/am1L/KipiosKppkWlusamquUdSTzpl19iRjskgSX0qgYNNRQ9Ve j67HlFkKdSSZZGM8FVodhLI/PJ+7nqtsstfE9Dco= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727852AbeLRWNg (ORCPT ); Tue, 18 Dec 2018 17:13:36 -0500 Received: from mail.kernel.org ([198.145.29.99]:42566 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726536AbeLRWNe (ORCPT ); Tue, 18 Dec 2018 17:13:34 -0500 Received: from quaco.ghostprotocols.net (unknown [189.40.101.1]) (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 582EF21871; Tue, 18 Dec 2018 22:13:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1545171213; bh=kXTGFgWkX4k/WPSSsHoyef0cWnrgERpZ+c7OXoXnr1U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=T1anrNDLt0txiJRfkVq97e4XYB52NJIRyOaOpozqfObA7AyA/5BU/w5DROsht+8ls i2Ur6/QxGSlhSIbPaJI/aztZ+GSRj+H1GpTJHYfADMlYEaYwa6bRAYewEvaOHPA72+ UmH+vRBlGr+6hF3guUMS9Jib+SbGYx4RyNgSgcUQ= From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: Clark Williams , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Arnaldo Carvalho de Melo , Adrian Hunter , Jiri Olsa , =?UTF-8?q?Luis=20Cl=C3=A1udio=20Gon=C3=A7alves?= , Namhyung Kim , Wang Nan Subject: [PATCH 40/63] perf trace: Allow configuring if the syscall start timestamp should be printed Date: Tue, 18 Dec 2018 19:07:10 -0300 Message-Id: <20181218220733.15839-41-acme@kernel.org> X-Mailer: git-send-email 2.19.2 In-Reply-To: <20181218220733.15839-1-acme@kernel.org> References: <20181218220733.15839-1-acme@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Arnaldo Carvalho de Melo # trace -e open*,close,*sleep sleep 1 0.000 openat(dfd: CWD, filename: /etc/ld.so.cache, flags: CLOEXEC ) = 3 0.016 close(fd: 3 ) = 0 0.024 openat(dfd: CWD, filename: /lib64/libc.so.6, flags: CLOEXEC ) = 3 0.074 close(fd: 3 ) = 0 0.235 openat(dfd: CWD, filename: /usr/lib/locale/locale-archive, flags: CLOEXEC) = 3 0.251 close(fd: 3 ) = 0 0.285 nanosleep(rqtp: 0x7ffd68e6d620, rmtp: 0 ) = 0 1000.386 close(fd: 1 ) = 0 1000.395 close(fd: 2 ) = 0 # # perf config trace.show_timestamp=no # trace -e open*,close,*sleep sleep 1 openat(dfd: CWD, filename: /etc/ld.so.cache, flags: CLOEXEC ) = 3 close(fd: 3 ) = 0 openat(dfd: CWD, filename: /lib64/libc.so.6, flags: CLOEXEC ) = 3 close(fd: 3 ) = 0 openat(dfd: CWD, filename: , flags: CLOEXEC ) = 3 close(fd: 3 ) = 0 nanosleep(rqtp: 0x7fffa79c38e0, rmtp: 0 ) = 0 close(fd: 1 ) = 0 close(fd: 2 ) = 0 # Cc: Adrian Hunter Cc: Jiri Olsa Cc: Luis Cláudio Gonçalves Cc: Namhyung Kim Cc: Wang Nan Link: https://lkml.kernel.org/n/tip-mjjnicy48367jah6ls4k0nk8@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/Documentation/perf-config.txt | 3 +++ tools/perf/builtin-trace.c | 9 ++++++++- 2 files changed, 11 insertions(+), 1 deletion(-) diff --git a/tools/perf/Documentation/perf-config.txt b/tools/perf/Documentation/perf-config.txt index cd9bf12fb255..ecd1e9514925 100644 --- a/tools/perf/Documentation/perf-config.txt +++ b/tools/perf/Documentation/perf-config.txt @@ -535,6 +535,9 @@ trace.*:: trace.show_duration:: Show syscall duration. + trace.show_timestamp:: + Show syscall start timestamp. + trace.show_zeros:: Do not suppress syscall arguments that are equal to zero. diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index a4e2290e57e0..e978ce034863 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -127,6 +127,7 @@ struct trace { bool show_tool_stats; bool trace_syscalls; bool kernel_syscallchains; + bool show_tstamp; bool show_duration; bool show_zeros; bool force; @@ -1215,7 +1216,10 @@ static size_t trace__fprintf_comm_tid(struct trace *trace, struct thread *thread static size_t trace__fprintf_entry_head(struct trace *trace, struct thread *thread, u64 duration, bool duration_calculated, u64 tstamp, FILE *fp) { - size_t printed = trace__fprintf_tstamp(trace, tstamp, fp); + size_t printed = 0; + + if (trace->show_tstamp) + printed = trace__fprintf_tstamp(trace, tstamp, fp); if (trace->show_duration) printed += fprintf_duration(duration, duration_calculated, fp); return printed + trace__fprintf_comm_tid(trace, thread, fp); @@ -3538,6 +3542,8 @@ static int trace__config(const char *var, const char *value, void *arg) "event selector. use 'perf list' to list available events", parse_events_option); err = parse_events_option(&o, value, 0); + } else if (!strcmp(var, "trace.show_timestamp")) { + trace->show_tstamp = perf_config_bool(var, value); } else if (!strcmp(var, "trace.show_duration")) { trace->show_duration = perf_config_bool(var, value); } else if (!strcmp(var, "trace.show_zeros")) { @@ -3574,6 +3580,7 @@ int cmd_trace(int argc, const char **argv) }, .output = stderr, .show_comm = true, + .show_tstamp = true, .show_duration = true, .trace_syscalls = false, .kernel_syscallchains = false, -- 2.19.2