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[23.128.96.18]) by mx.google.com with ESMTP id s6si8886133ejz.76.2020.09.21.13.20.41; Mon, 21 Sep 2020 13:21:04 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726524AbgIUUTr (ORCPT + 99 others); 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