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=-9.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 1D435C38A2A for ; Sun, 10 May 2020 15:08:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DD1AD208CA for ; Sun, 10 May 2020 15:08:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="A4qfuP9Z" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729199AbgEJPIR (ORCPT ); Sun, 10 May 2020 11:08:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48346 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726104AbgEJPIQ (ORCPT ); Sun, 10 May 2020 11:08:16 -0400 Received: from mail-pj1-x1044.google.com (mail-pj1-x1044.google.com [IPv6:2607:f8b0:4864:20::1044]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7D0C0C061A0C for ; Sun, 10 May 2020 08:08:16 -0700 (PDT) Received: by mail-pj1-x1044.google.com with SMTP id hi11so6513161pjb.3 for ; Sun, 10 May 2020 08:08:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=yBEZRP+VnIfa0Frn8xyE5U/oNqnLOPY+QHZM3x5oRPs=; b=A4qfuP9ZcGq5+lT+KLr9XL5BuJfxMLRcXRRl30yaKnnVKmlFv6pueIDG03rXXUrUh3 4AboE1u1d8/sX+KV3OVMfnTWRiyZR0V/k54J5tAcmISUeiXeZGWNrAY7OnWQhqQgb+NB oSvsKwLhltH4hTwiAvzKBDL6VDBaBL2DeqSoSzhQckVDJP84ijKRT5GoE31s0IYjT8RJ jV8+7JiVG846Qpe3SLxufcHsGbkOjmC19kV8tjUTBs6ltTzoJ4VbZ9Scztrnzw0gq/+Q rFLf2PnzQHBwQPj5XweRr+JEOodXEfWzPyfWWKH5eE4kE0DHnC+8jNXWl4H81zRVGTDl YX2A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=yBEZRP+VnIfa0Frn8xyE5U/oNqnLOPY+QHZM3x5oRPs=; b=Jj0InqFLUOiKzfabkWE2IvuR2BHm94MiPHn6uAd2VARG0ypGqJkKK8+kFanFFej8NE F/Rw0RTJ80GdzV3xUUYHX6BJESg/WDQUwzjogqtOPNfYUPhA2qqDkrcqZDRnO9a2hEn6 Wd/poCQipZE/hZhFVDzdTfXzgv2lqb5XhoQyQ26E8NIq5cQUae7SI8DtOfJiMajdBOdY p6SpKKz/UQbJtbHAs3vCvGVrF20ro5LYmBFdzxisDdSFFZpUGrLqn3VUCXlIST7slxbO K1LON4NWOV3HpuLrGqEylRI/fpaaV/z/a3ufduEDyb21uSGHjXymwjxYeMiOoDLJRf0w XN9w== X-Gm-Message-State: AGi0PuZYkifii70hihUc+XbRK7XexE9KxOcjNsgXIpaW24UILd/zGjWS smnyopuyOh+pkaGCHOIj5pI= X-Google-Smtp-Source: APiQypLa+VLxavRv0vyeixfTpaIzdU0ycU1ypJ89ATCXmNfrzwjVOupuWRZh7qAYOSgky6K0ScHDpg== X-Received: by 2002:a17:902:784c:: with SMTP id e12mr10949927pln.191.1589123296064; Sun, 10 May 2020 08:08:16 -0700 (PDT) Received: from vultr.guest ([149.248.10.52]) by smtp.gmail.com with ESMTPSA id v7sm6870909pfm.146.2020.05.10.08.08.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 10 May 2020 08:08:15 -0700 (PDT) From: Changbin Du To: Jiri Olsa , Arnaldo Carvalho de Melo Cc: Peter Zijlstra , Ingo Molnar , Namhyung Kim , Steven Rostedt , linux-kernel@vger.kernel.org, Changbin Du Subject: [PATCH 06/19] perf ftrace: add support for trace option sleep-time Date: Sun, 10 May 2020 23:06:15 +0800 Message-Id: <20200510150628.16610-7-changbin.du@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200510150628.16610-1-changbin.du@gmail.com> References: <20200510150628.16610-1-changbin.du@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This adds an option '--nosleep-time' which allow us only to measure on-CPU time. This option is function_graph tracer only. Signed-off-by: Changbin Du --- tools/perf/builtin-ftrace.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/tools/perf/builtin-ftrace.c b/tools/perf/builtin-ftrace.c index 8133d910d5d8..d3fcf3b0b792 100644 --- a/tools/perf/builtin-ftrace.c +++ b/tools/perf/builtin-ftrace.c @@ -40,6 +40,7 @@ struct perf_ftrace { struct list_head nograph_funcs; int graph_depth; bool func_stack_trace; + bool nosleep_time; }; struct filter_entry { @@ -186,6 +187,7 @@ static void reset_tracing_filters(void); static void reset_tracing_options(struct perf_ftrace *ftrace __maybe_unused) { write_tracing_option_file("func_stack_trace", "0"); + write_tracing_option_file("sleep-time", "1"); } static int reset_tracing_files(struct perf_ftrace *ftrace __maybe_unused) @@ -345,6 +347,17 @@ static int set_tracing_depth(struct perf_ftrace *ftrace) return 0; } +static int set_tracing_sleep_time(struct perf_ftrace *ftrace) +{ + if (!ftrace->nosleep_time) + return 0; + + if (write_tracing_option_file("sleep-time", "0") < 0) + return -1; + + return 0; +} + static int __cmd_ftrace(struct perf_ftrace *ftrace, int argc, const char **argv) { char *trace_file; @@ -413,6 +426,11 @@ static int __cmd_ftrace(struct perf_ftrace *ftrace, int argc, const char **argv) goto out_reset; } + if (set_tracing_sleep_time(ftrace) < 0) { + pr_err("failed to set tracing option sleep-time\n"); + goto out_reset; + } + if (write_tracing_file("current_tracer", ftrace->tracer) < 0) { pr_err("failed to set current_tracer to %s\n", ftrace->tracer); goto out_reset; @@ -548,6 +566,8 @@ int cmd_ftrace(int argc, const char **argv) parse_filter_func), OPT_INTEGER('D', "graph-depth", &ftrace.graph_depth, "Max depth for function graph tracer"), + OPT_BOOLEAN(0, "nosleep-time", &ftrace.nosleep_time, + "Measure on-CPU time only (function_graph only)"), OPT_END() }; -- 2.25.1