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 3EA25C4332F for ; Wed, 16 Nov 2022 23:39:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236796AbiKPXj3 (ORCPT ); Wed, 16 Nov 2022 18:39:29 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60758 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234379AbiKPXjI (ORCPT ); Wed, 16 Nov 2022 18:39:08 -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 0A0DA45EFA; Wed, 16 Nov 2022 15:39:08 -0800 (PST) Received: by mail-pj1-x1032.google.com with SMTP id d59-20020a17090a6f4100b00213202d77e1so3852823pjk.2; Wed, 16 Nov 2022 15:39:08 -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=TA+6dbtIStadvAuHvkrtYwI6bvKg5btHy1tHp0RwTqg=; b=HlsotV8aYsxQD2uYpIDy78RWOA0mzRu/W+zWyjxi3barQ6sK+PrklVvZwCCq//9Sqf 2QRwLW9mKrg7cPawjIgx+WjS8CBpEYZrnfkD3N6IkDmd3kmxeX63m25lEl1c+RlF354d tj/4oHywEqQtiGOj3Xmd9NQypUbG3JLFq0fxQ6918Z/FPslJN1JLMPk7x8NpYss9p4p9 pvzuO+6g8ms2JUU7fHeEKCQUOq5FuLfPr6lTYcJk1lnTZ62Kki+pTdiyC/cQZ+/Yee9G HnxgYcqxFQWzWKnUu2j0gfrwa8KL19IZ2Ihex65+MgRNDkzXMOZxmcOQnnDGNZqizgta P6zA== 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=TA+6dbtIStadvAuHvkrtYwI6bvKg5btHy1tHp0RwTqg=; b=x+q/tY5tWY1lfL5RxKyFamCXdiuJXzPXvNPbvYwy2BG2g8qBJPtG9b6cy/BsOwqR1d Xs0PqlOt5iXeJXZoXIJlySeGt3dV+Z/wKlaCil/roUud+0Cikr9oPJO7dpQMszUCuHet +DrKpz89bxOw6CQ4ia7BXyOJGC0R2ZCq+oanuTi6fKtRv0OgWd1zxSrDvYoHrVMY/nzp UwDfwkDkU0HnJSSv9B5wmbMC2s6TAVYs6NhJK+frSl4zYH3JORFBKg2m9pJTxRSa+rww NjROxbyFSqo5VWu+FnZiQaeNGIVayJdTpXAZAw0cleluwcsfR0FoywNrsyd/ebWHWhM6 gBsw== X-Gm-Message-State: ANoB5pmx0iUl4c8QC3uJ0N9MhL+VmrjPcyPPTI24vulzaXPBH1h3m539 gqdvWblSbtOWCqAGZvOsnd4= X-Google-Smtp-Source: AA0mqf7Vn6lesHlX0cQkbSy3rKJXFx8OOkBflWz2AiejVIHJ0I0kNsZ0M8uLlR4oAh8HllPyEBpVhQ== X-Received: by 2002:a17:90b:3c45:b0:20a:db08:8a8a with SMTP id pm5-20020a17090b3c4500b0020adb088a8amr5991480pjb.141.1668641947510; Wed, 16 Nov 2022 15:39:07 -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.262.2022.11.16.15.39.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 16 Nov 2022 15:39:07 -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 07/12] perf test: Add 'sqrtloop' test workload Date: Wed, 16 Nov 2022 15:38:49 -0800 Message-Id: <20221116233854.1596378-8-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 sqrtloop creates a child process to run an infinite loop calling sqrt() with rand(). This is needed for ARM SPE fork test. $ perf test -w sqrtloop It can take an optional argument to specify how long it will run 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/sqrtloop.c | 45 +++++++++++++++++++++++++++ 4 files changed, 48 insertions(+) create mode 100644 tools/perf/tests/workloads/sqrtloop.c diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c index 0ed5ac452f6e..9acb7a93eeb9 100644 --- a/tools/perf/tests/builtin-test.c +++ b/tools/perf/tests/builtin-test.c @@ -122,6 +122,7 @@ static struct test_workload *workloads[] = { &workload__noploop, &workload__thloop, &workload__leafloop, + &workload__sqrtloop, }; static int num_subtests(const struct test_suite *t) diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h index 86804dd6452b..18c40319e67c 100644 --- a/tools/perf/tests/tests.h +++ b/tools/perf/tests/tests.h @@ -203,5 +203,6 @@ struct test_workload workload__##work = { \ DECLARE_WORKLOAD(noploop); DECLARE_WORKLOAD(thloop); DECLARE_WORKLOAD(leafloop); +DECLARE_WORKLOAD(sqrtloop); #endif /* TESTS_H */ diff --git a/tools/perf/tests/workloads/Build b/tools/perf/tests/workloads/Build index 631596bdb2b3..1ca95cb0fdb5 100644 --- a/tools/perf/tests/workloads/Build +++ b/tools/perf/tests/workloads/Build @@ -3,5 +3,6 @@ perf-y += noploop.o perf-y += thloop.o perf-y += leafloop.o +perf-y += sqrtloop.o CFLAGS_leafloop.o = -g -O0 -fno-inline -fno-omit-frame-pointer diff --git a/tools/perf/tests/workloads/sqrtloop.c b/tools/perf/tests/workloads/sqrtloop.c new file mode 100644 index 000000000000..1e44d541d737 --- /dev/null +++ b/tools/perf/tests/workloads/sqrtloop.c @@ -0,0 +1,45 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#include +#include +#include +#include +#include +#include +#include "../tests.h" + +static volatile sig_atomic_t done; + +static void sighandler(int sig __maybe_unused) +{ + done = 1; +} + +static int __sqrtloop(int sec) +{ + signal(SIGALRM, sighandler); + alarm(sec); + + while (!done) + sqrt(rand()); + return 0; +} + +static int sqrtloop(int argc, const char **argv) +{ + int sec = 1; + + if (argc > 0) + sec = atoi(argv[0]); + + switch (fork()) { + case 0: + return __sqrtloop(sec); + case -1: + return -1; + default: + wait(NULL); + } + return 0; +} + +DEFINE_WORKLOAD(sqrtloop); -- 2.38.1.584.g0f3c55d4c2-goog