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 00CF2C4332F for ; Wed, 16 Nov 2022 23:39:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234532AbiKPXjQ (ORCPT ); Wed, 16 Nov 2022 18:39:16 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60622 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231634AbiKPXjD (ORCPT ); Wed, 16 Nov 2022 18:39:03 -0500 Received: from mail-pj1-x1032.google.com (mail-pj1-x1032.google.com [IPv6:2607:f8b0:4864:20::1032]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BBE2ABE2B; Wed, 16 Nov 2022 15:39:02 -0800 (PST) Received: by mail-pj1-x1032.google.com with SMTP id w4-20020a17090ac98400b002186f5d7a4cso291845pjt.0; Wed, 16 Nov 2022 15:39:02 -0800 (PST) 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=hV9u5PxVvqmV+BpGh3+8lIJe2BvSUrc7KFHFFdwiD9k=; b=EVKtp/j2eht2QovsgJ3wqzLdIVzxwPf117oXwcO7GIUJ/wtopHywSHAnzOfQblWHN6 BEf5plioroWg37zahPDrFKtc/LNRP00oiuvXIvtid1oQhMfQNxcRMncKJqOa+vVNXgnX GH8UhH6mLTz6o9facoKElJxdlnahcWuuXolG0MMqVUimnsgXfszfvX0MW63x2Ehbw6+r 3Ed4Pjx2Xc6EWtKFnxWdg38XyYjxSI66Xy/0jygfpGuMla3WzhIXEW2qzYM1y5eJBzmM tm9uNu3yghimo91s2N1j83lWijAQUyZXwnhX3Ham5tg9FYQYJATBfu8+US5hkTaE4dEd ckxQ== 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=hV9u5PxVvqmV+BpGh3+8lIJe2BvSUrc7KFHFFdwiD9k=; b=IBqfZBKwbk80EoXXhiezYIRG81FaFRCow6vbbVDox9K3Cxzsbg9WbYqgGvdl+1AfXo QpRgMiYklL3PQwBqNyDwMRvNXEtCqpr+uzWEUZDcaUWEMp3Me5cXRo3JIciLmbQbqF5F iDHPCRyNj+ihd1rvPrwue3xG5Hf0R3wgTxGngLOwtUGHbAAoxiRgfB11XDomua5uytIH /vw2biqj2nio/02tboSY1Pc6tddVgYjm46AcWJn8172D4sFXT/bfUbJi+Y7yTA2ByqGh jkLnBm+QjMzsEnANrmHxxRHnpUIX3JtGKWEQufnNbqSHxLc+HRMzYN5PqPfsElys6xbl hN7A== X-Gm-Message-State: ANoB5pn/vIbXhN1D0sbB9QaktagIIMoUiWspOz0dnzv7eOMK9L0DPl+3 7LPfBufAW0GMNjTsu4Y3ytw= X-Google-Smtp-Source: AA0mqf767LTaMdwMaWH+aRivTtdCQayAYW29msLhpm4aLuGABU/qGDuj1sv/xVt2hfe8pIQrvZXqEw== X-Received: by 2002:a17:90b:1892:b0:218:8f2:5af9 with SMTP id mn18-20020a17090b189200b0021808f25af9mr5982135pjb.65.1668641942168; Wed, 16 Nov 2022 15:39:02 -0800 (PST) Received: from youngsil.svl.corp.google.com ([2620:15c:2d4:203:5b40:ce8c:1f7c:9acc]) by smtp.gmail.com with ESMTPSA id bc10-20020a170902930a00b00188ef3ea2b6sm95929plb.262.2022.11.16.15.39.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 16 Nov 2022 15:39:01 -0800 (PST) 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, Leo Yan , German Gomez , Zhengjun Xing , James Clark , Athira Jajeev Subject: [PATCH 03/12] perf test: Add 'thloop' test workload Date: Wed, 16 Nov 2022 15:38:45 -0800 Message-Id: <20221116233854.1596378-4-namhyung@kernel.org> X-Mailer: git-send-email 2.38.1.584.g0f3c55d4c2-goog In-Reply-To: <20221116233854.1596378-1-namhyung@kernel.org> References: <20221116233854.1596378-1-namhyung@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The thloop is similar to noploop but runs in two threads. This is needed to verify perf record --per-thread to handle multi-threaded programs properly. $ perf test -w thloop It also takes an optional argument to specify runtime in seconds (default: 1). Signed-off-by: Namhyung Kim --- tools/perf/tests/builtin-test.c | 1 + tools/perf/tests/tests.h | 1 + tools/perf/tests/workloads/Build | 1 + tools/perf/tests/workloads/thloop.c | 53 +++++++++++++++++++++++++++++ 4 files changed, 56 insertions(+) create mode 100644 tools/perf/tests/workloads/thloop.c diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c index ce641ccfcf81..161f38476e77 100644 --- a/tools/perf/tests/builtin-test.c +++ b/tools/perf/tests/builtin-test.c @@ -120,6 +120,7 @@ static struct test_suite **tests[] = { static struct test_workload *workloads[] = { &workload__noploop, + &workload__thloop, }; static int num_subtests(const struct test_suite *t) diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h index d315d0d6fc97..e6edfeeadaeb 100644 --- a/tools/perf/tests/tests.h +++ b/tools/perf/tests/tests.h @@ -201,5 +201,6 @@ struct test_workload workload__##work = { \ /* The list of test workloads */ DECLARE_WORKLOAD(noploop); +DECLARE_WORKLOAD(thloop); #endif /* TESTS_H */ diff --git a/tools/perf/tests/workloads/Build b/tools/perf/tests/workloads/Build index f98e968d4633..b8964b1099c0 100644 --- a/tools/perf/tests/workloads/Build +++ b/tools/perf/tests/workloads/Build @@ -1,3 +1,4 @@ # SPDX-License-Identifier: GPL-2.0 perf-y += noploop.o +perf-y += thloop.o diff --git a/tools/perf/tests/workloads/thloop.c b/tools/perf/tests/workloads/thloop.c new file mode 100644 index 000000000000..29193b75717e --- /dev/null +++ b/tools/perf/tests/workloads/thloop.c @@ -0,0 +1,53 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#include +#include +#include +#include +#include +#include "../tests.h" + +static volatile sig_atomic_t done; +static volatile unsigned count; + +/* We want to check this symbol in perf report */ +noinline void test_loop(void); + +static void sighandler(int sig __maybe_unused) +{ + done = 1; +} + +noinline void test_loop(void) +{ + while (!done) + count++; +} + +static void *thfunc(void *arg) +{ + void (*loop_fn)(void) = arg; + + loop_fn(); + return NULL; +} + +static int thloop(int argc, const char **argv) +{ + int sec = 1; + pthread_t th; + + if (argc > 0) + sec = atoi(argv[0]); + + signal(SIGINT, sighandler); + signal(SIGALRM, sighandler); + alarm(sec); + + pthread_create(&th, NULL, thfunc, test_loop); + test_loop(); + pthread_join(th, NULL); + + return 0; +} + +DEFINE_WORKLOAD(thloop); -- 2.38.1.584.g0f3c55d4c2-goog