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=-9.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 6A787C4363C for ; Mon, 21 Sep 2020 20:19:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 210B221789 for ; Mon, 21 Sep 2020 20:19:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726556AbgIUUTr (ORCPT ); Mon, 21 Sep 2020 16:19:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39188 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726427AbgIUUTq (ORCPT ); Mon, 21 Sep 2020 16:19:46 -0400 Received: from mout-p-202.mailbox.org (mout-p-202.mailbox.org [IPv6:2001:67c:2050::465:202]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 54809C0613CF for ; Mon, 21 Sep 2020 13:19:46 -0700 (PDT) Received: from smtp2.mailbox.org (smtp2.mailbox.org [IPv6:2001:67c:2050:105:465:1:2:0]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-384) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mout-p-202.mailbox.org (Postfix) with ESMTPS id 4BwG4v6Fc6zQkmC; Mon, 21 Sep 2020 22:19:43 +0200 (CEST) X-Virus-Scanned: amavisd-new at heinlein-support.de Received: from smtp2.mailbox.org ([80.241.60.241]) by spamfilter03.heinlein-hosting.de (spamfilter03.heinlein-hosting.de [80.241.56.117]) (amavisd-new, port 10030) with ESMTP id 8-0nJxhkurv1; Mon, 21 Sep 2020 22:19:40 +0200 (CEST) From: Hagen Paul Pfeifer To: linux-kernel@vger.kernel.org Cc: Hagen Paul Pfeifer , Arnaldo Carvalho de Melo Subject: [PATCH 2/2] perf script: add min, max to futex-contention Date: Mon, 21 Sep 2020 22:19:28 +0200 Message-Id: <20200921201928.799498-2-hagen@jauu.net> In-Reply-To: <20200921201928.799498-1-hagen@jauu.net> References: <20200921201928.799498-1-hagen@jauu.net> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-MBO-SPAM-Probability: X-Rspamd-Score: -2.65 / 15.00 / 15.00 X-Rspamd-Queue-Id: 0804F1704 X-Rspamd-UID: 230c58 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Average is quite informative, but the outliners - especially max - are also of interest. Before: mutex-locker[793299] lock 5637ec61e080 contended 3400 times, 446 avg ns mutex-locker[793301] lock 5637ec61e080 contended 3563 times, 385 avg ns mutex-locker[793300] lock 5637ec61e080 contended 3110 times, 1855 avg ns After: mutex-locker[795251] lock 55b14e6dd080 contended 3853 times, 1279 avg ns [max: 12270 us, min 340 us] mutex-locker[795253] lock 55b14e6dd080 contended 2911 times, 518 avg ns [max: 51660261 us, min 347 us] mutex-locker[795252] lock 55b14e6dd080 contended 3843 times, 385 avg ns [max: 24323998 us, min 338 us] Signed-off-by: Hagen Paul Pfeifer Cc: Arnaldo Carvalho de Melo --- tools/perf/scripts/python/futex-contention.py | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/perf/scripts/python/futex-contention.py b/tools/perf/scripts/python/futex-contention.py index c440f02627dd..e8a02aecabd9 100644 --- a/tools/perf/scripts/python/futex-contention.py +++ b/tools/perf/scripts/python/futex-contention.py @@ -53,5 +53,5 @@ def trace_begin(): def trace_end(): for (tid, lock) in lock_waits: min, max, avg, count = lock_waits[tid, lock] - print("%s[%d] lock %x contended %d times, %d avg ns" % - (process_names[tid], tid, lock, count, avg)) + print("%s[%d] lock %x contended %d times, %d avg ns [max: %d us, min %d us]" % + (process_names[tid], tid, lock, count, avg, max, min)) -- 2.28.0