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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DE9CCC433FE for ; Thu, 20 Oct 2022 17:26:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229876AbiJTR0w (ORCPT ); Thu, 20 Oct 2022 13:26:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55860 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229834AbiJTR0v (ORCPT ); Thu, 20 Oct 2022 13:26:51 -0400 Received: from mail-pl1-x634.google.com (mail-pl1-x634.google.com [IPv6:2607:f8b0:4864:20::634]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8F7171A1B01; Thu, 20 Oct 2022 10:26:50 -0700 (PDT) Received: by mail-pl1-x634.google.com with SMTP id k9so20474769pll.11; Thu, 20 Oct 2022 10:26:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:sender:from:to:cc:subject:date :message-id:reply-to; bh=PH0g+SRm+dkCNaIciH1RdMRbmhrFmdajvY8xociCPdQ=; b=L4AhiqLscNtbMUNvjtXn237HAUbTRwwvcT2SyM7nA64Vng9WA6lcrXaMqGt4+MITFP fqx9GLLV/YN8HfZWeVaVTavPxjd4UaJrhkdPRd97yrJY0D1n0meMhmMlP6WRuluflecO EVM1LqI1Ya/EqcECbaHAt8TRvlJ+zcpFEWxd8U7f5apMy15Xth17x6EFh2MsCUV9aXNL rQhWOmxdUm9ZPKrmLnNXioYJo/6o3ZGzjqzitL4NMpKLWXUs48/i1KaP/VMbbwKuEOjF p91D9cqAHhXQPC/lSjU+AWA7S+YAfO9KG6QLUxri5eKjFAClqliOI9rOijGtlFlRopzr cdDA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:sender:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=PH0g+SRm+dkCNaIciH1RdMRbmhrFmdajvY8xociCPdQ=; b=tDUklj8JRf3scEm+bDrXFkPb4LMNX5vVhUN6YuNpKrd0kZ3vJSPpCrviHMguwEg3WO BbIIU4BsBmmBuqtodyd2yeNYI9arWWuhyaiZmmHltZik8TwUXczTiZDmH16+No5yk0XZ ZC2khdlmdp2GFSB/+BYUIkythUgnWqJfAR/HUjU97CvzQEfEBrgdYR9jxCqz7q8I2Np4 vR+qcftXv9yplI6TPILKmukiHZiVcZqxZlt4Q48pKg7MclN9b5VACIN4NjSEPdhOGmg+ HklXKCZOYjLcUi6VN66/4HSS4BrGBc1fDwiaZbmpKZhZkHZhfNUiftsk8D0ckbJrQI4X 92SA== X-Gm-Message-State: ACrzQf04RoraxGY4qIdzM/jp2SIs04+EvHIjyF/lT2nQR1/zaLmJr+ZL tKSJDwrETjeBwJLVvjEARRA= X-Google-Smtp-Source: AMsMyM4l7pGyusHbrGGaOew0gC/CQDiLaQSVzhF6DMOXYWcO5BAsp7Attt80gnRgKrnrgHU8jT84aQ== X-Received: by 2002:a17:902:720a:b0:181:150c:fcc4 with SMTP id ba10-20020a170902720a00b00181150cfcc4mr15153685plb.109.1666286810012; Thu, 20 Oct 2022 10:26:50 -0700 (PDT) Received: from youngsil.svl.corp.google.com ([2620:15c:2d4:203:637f:7dcc:4bbf:4981]) by smtp.gmail.com with ESMTPSA id q13-20020a170902f34d00b0017680faa1a8sm12951754ple.112.2022.10.20.10.26.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 20 Oct 2022 10:26:49 -0700 (PDT) Sender: Namhyung Kim From: Namhyung Kim To: Arnaldo Carvalho de Melo , Jiri Olsa Cc: Ingo Molnar , Peter Zijlstra , LKML , Ian Rogers , Adrian Hunter , linux-perf-users@vger.kernel.org Subject: [PATCH 3/8] perf test: Use a test program in perf record tests Date: Thu, 20 Oct 2022 10:26:38 -0700 Message-Id: <20221020172643.3458767-4-namhyung@kernel.org> X-Mailer: git-send-email 2.38.0.135.g90850a2211-goog In-Reply-To: <20221020172643.3458767-1-namhyung@kernel.org> References: <20221020172643.3458767-1-namhyung@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-perf-users@vger.kernel.org If the system has cc it could build a test program with two threads and then use it for more detailed testing. Also it accepts an option to run a thread forever to ensure multi-thread runs. If cc is not found, it falls back to use the default value 'true'. Signed-off-by: Namhyung Kim --- tools/perf/tests/shell/record.sh | 64 ++++++++++++++++++++++++++++++-- 1 file changed, 60 insertions(+), 4 deletions(-) diff --git a/tools/perf/tests/shell/record.sh b/tools/perf/tests/shell/record.sh index 464071462809..952981481239 100755 --- a/tools/perf/tests/shell/record.sh +++ b/tools/perf/tests/shell/record.sh @@ -6,10 +6,17 @@ set -e err=0 perfdata=$(mktemp /tmp/__perf_test.perf.data.XXXXX) +testprog=$(mktemp /tmp/__perf_test.prog.XXXXXX) +testsym="test_loop" cleanup() { rm -f "${perfdata}" rm -f "${perfdata}".old + + if [ "${testprog}" != "true" ]; then + rm -f "${testprog}" + fi + trap - EXIT TERM INT } @@ -19,9 +26,56 @@ trap_cleanup() { } trap trap_cleanup EXIT TERM INT +build_test_program() { + if ! [ -x "$(command -v cc)" ]; then + # No CC found. Fall back to 'true' + testprog=true + testsym=true + return + fi + + echo "Build a test program" + cat < +#include +#include + +void test_loop(void) { + volatile int count = 1000000; + + while (count--) + continue; +} + +void *thfunc(void *arg) { + int forever = *(int *)arg; + + do { + test_loop(); + } while (forever); + + return NULL; +} + +int main(int argc, char *argv[]) { + pthread_t th; + int forever = 0; + + if (argc > 1) + forever = atoi(argv[1]); + + pthread_create(&th, NULL, thfunc, &forever); + test_loop(); + pthread_join(th, NULL); + + return 0; +} +EOF +} + test_per_thread() { echo "Basic --per-thread mode test" - if ! perf record -o /dev/null --quiet true 2> /dev/null + if ! perf record -o /dev/null --quiet ${testprog} 2> /dev/null then echo "Per-thread record [Skipped event not supported]" if [ $err -ne 1 ] @@ -30,13 +84,13 @@ test_per_thread() { fi return fi - if ! perf record --per-thread -o "${perfdata}" true 2> /dev/null + if ! perf record --per-thread -o "${perfdata}" ${testprog} 2> /dev/null then echo "Per-thread record [Failed record]" err=1 return fi - if ! perf report -i "${perfdata}" -q | grep -q true + if ! perf report -i "${perfdata}" -q | grep -q "${testsym}" then echo "Per-thread record [Failed missing output]" err=1 @@ -62,7 +116,7 @@ test_register_capture() { return fi if ! perf record -o - --intr-regs=di,r8,dx,cx -e br_inst_retired.near_call:p \ - -c 1000 --per-thread true 2> /dev/null \ + -c 1000 --per-thread ${testprog} 2> /dev/null \ | perf script -F ip,sym,iregs -i - 2> /dev/null \ | grep -q "DI:" then @@ -73,6 +127,8 @@ test_register_capture() { echo "Register capture test [Success]" } +build_test_program + test_per_thread test_register_capture -- 2.38.0.135.g90850a2211-goog