From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754007AbaCTFho (ORCPT ); Thu, 20 Mar 2014 01:37:44 -0400 Received: from lgeamrelo02.lge.com ([156.147.1.126]:61615 "EHLO LGEAMRELO02.lge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750922AbaCTFgz (ORCPT ); Thu, 20 Mar 2014 01:36:55 -0400 X-AuditID: 9c93017e-b7b10ae000000e66-21-532a7e730c16 From: Namhyung Kim To: Arnaldo Carvalho de Melo Cc: Peter Zijlstra , Ingo Molnar , Paul Mackerras , Namhyung Kim , Namhyung Kim , LKML , Jiri Olsa , David Ahern , Frederic Weisbecker , Andi Kleen , Arun Sharma , Rodrigo Campos Subject: [PATCH 19/21] perf top: Add --children option Date: Thu, 20 Mar 2014 14:36:44 +0900 Message-Id: <1395293806-25847-20-git-send-email-namhyung@kernel.org> X-Mailer: git-send-email 1.7.11.7 In-Reply-To: <1395293806-25847-1-git-send-email-namhyung@kernel.org> References: <1395293806-25847-1-git-send-email-namhyung@kernel.org> X-Brightmail-Tracker: AAAAAA== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The --children option is for showing accumulated overhead (period) value as well as self overhead. It should be used with one of -g or --call-graph option. Tested-by: Arun Sharma Acked-by: Jiri Olsa Cc: Frederic Weisbecker Signed-off-by: Namhyung Kim --- tools/perf/Documentation/perf-top.txt | 8 +++++++- tools/perf/builtin-top.c | 7 +++++++ 2 files changed, 14 insertions(+), 1 deletion(-) diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt index 50fcf97a7dc9..fd2db1a83de2 100644 --- a/tools/perf/Documentation/perf-top.txt +++ b/tools/perf/Documentation/perf-top.txt @@ -119,7 +119,7 @@ Default is to monitor all CPUS. --fields=:: Specify output field - multiple keys can be specified in CSV format. Following fields are available: - overhead, overhead_sys, overhead_us, sample and period. + overhead, overhead_sys, overhead_us, overhead_children, sample and period. Also it can contain any sort key(s). By default, every sort keys not specified in --field will be appended @@ -161,6 +161,12 @@ Default is to monitor all CPUS. Setup and enable call-graph (stack chain/backtrace) recording, implies -g. +--children:: + Accumulate callchain of children to parent entry so that then can + show up in the output. The output will have a new "Children" column + and will be sorted on the data. It requires -g/--call-graph option + enabled. + --max-stack:: Set the stack depth limit when parsing the callchain, anything beyond the specified depth will be ignored. This is a trade-off diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index b08939c7f15b..2a8dc3e0a913 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -1103,6 +1103,8 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused) OPT_CALLBACK(0, "call-graph", &top.record_opts, "mode[,dump_size]", record_callchain_help, &parse_callchain_opt), + OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain, + "Accumulate callchains of children and show total overhead as well"), OPT_INTEGER(0, "max-stack", &top.max_stack, "Set the maximum stack depth when parsing the callchain. " "Default: " __stringify(PERF_MAX_STACK_DEPTH)), @@ -1205,6 +1207,11 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused) top.sym_evsel = perf_evlist__first(top.evlist); + if (!symbol_conf.use_callchain) { + symbol_conf.cumulate_callchain = false; + perf_hpp__cancel_cumulate(); + } + symbol_conf.priv_size = sizeof(struct annotation); symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); -- 1.7.11.7