linux-kernel - [RFC PATCH v5 16/16] perf stat: Add hardware-grouping cmd option to perf stat

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20240412210756.309828-17-weilin.wang@intel.com>
Date: Fri, 12 Apr 2024 14:07:56 -0700
From: weilin.wang@...el.com
To: weilin.wang@...el.com,
	Ian Rogers <irogers@...gle.com>,
	Kan Liang <kan.liang@...ux.intel.com>,
	Namhyung Kim <namhyung@...nel.org>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...hat.com>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
	Jiri Olsa <jolsa@...nel.org>,
	Adrian Hunter <adrian.hunter@...el.com>
Cc: linux-perf-users@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Perry Taylor <perry.taylor@...el.com>,
	Samantha Alt <samantha.alt@...el.com>,
	Caleb Biggers <caleb.biggers@...el.com>
Subject: [RFC PATCH v5 16/16] perf stat: Add hardware-grouping cmd option to perf stat

From: Weilin Wang <weilin.wang@...el.com>

Add a cmd option to allow user to choose this new metric grouping method.

$ perf stat -M TopdownL1 -a --hardware-grouping

Reviewed-by: Ian Rogers <irogers@...gle.com>
Signed-off-by: Weilin Wang <weilin.wang@...el.com>
---
 tools/perf/builtin-stat.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index c4a5f0984295..8c33e3f8bc80 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1259,6 +1259,8 @@ static struct option stat_options[] = {
 		       "don't try to share events between metrics in a group"),
 	OPT_BOOLEAN(0, "metric-no-threshold", &stat_config.metric_no_threshold,
 		       "disable adding events for the metric threshold calculation"),
+	OPT_BOOLEAN(0, "hardware-grouping", &stat_config.hardware_aware_grouping,
+				"Use hardware aware metric grouping method"),
 	OPT_BOOLEAN(0, "topdown", &topdown_run,
 			"measure top-down statistics"),
 	OPT_UINTEGER(0, "td-level", &stat_config.topdown_level,
-- 
2.42.0