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 219C0C43217 for ; Wed, 9 Nov 2022 17:47:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231810AbiKIRrL (ORCPT ); Wed, 9 Nov 2022 12:47:11 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57134 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231801AbiKIRqs (ORCPT ); Wed, 9 Nov 2022 12:46:48 -0500 Received: from mail-pl1-x62c.google.com (mail-pl1-x62c.google.com [IPv6:2607:f8b0:4864:20::62c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3B1A4658D; Wed, 9 Nov 2022 09:46:47 -0800 (PST) Received: by mail-pl1-x62c.google.com with SMTP id y4so17785934plb.2; Wed, 09 Nov 2022 09:46:47 -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=KiBUNwJw8FX8rn3PRRIvOQe7nPqm7jQrsYrGMfNGV4Y=; b=N7hi0Ju56islhgWrcdkWJHhaovavX7G1GB77k8hhFvFgTeK2+kW8/lySo/LpamaWiz rujAMtlTGNFUxGRxTXhGFGm+6BO6wD6atL17wzrbndNR/TP8MyRHKJa1NbooE6k664nw aaX6PiwSnguFKqpHSrGK0PkeAnIup4ExEEvBMr7Tod2P480tWqRZMj9yXVAWmurKOtu9 Gnm1p+PrYIlnaExBn8lWxVCmOegiuVClACay77JEX5GspRCytEeNH8wJ4hye3OEa8UB5 oP6mF43j3K6e5zx66KqpYJDlhSujy8VLfxcrVl3HXjCyTkgxCYKvmfzvhURbLHKHg5Ak MWdw== 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=KiBUNwJw8FX8rn3PRRIvOQe7nPqm7jQrsYrGMfNGV4Y=; b=6PEDzGdeYBk8XzTnZajkWb/H8ByQy1I8E3UP455GGNKkAExFiJgNFuVzTlzZUwWYHZ akz/7eFD9U24/zW82lYu/WIUNPU6GMP8V/qqi0GDzsjKDovgGRuipk4c6KPeTmy2GkHh x6BN+8TYLyjsasYDtH98yDmPBBxQ4DceuzY8DYRakB/4iD/DRui3gAlFtpKkluV9xBC8 IBXonDPX/lQQRTwQ4ggn2a8n7Q9SlDkIax6LFEp0FyTOXUxzPklSMJ+PuzgUKwDtooTI A9b1xVK93h0HVJyBJKVW4bE6GEZ2BMG+r43eWsdzn7XF1PNVZMEbjn4M6jk8seEG2ijK RY3w== X-Gm-Message-State: ACrzQf1IMuYZZR0DK+rN3hQvyS331C4mkytCWXLwqHOcB8VGtk762fpz Q0ZYQFoV6gaJsSJ04I32HW4= X-Google-Smtp-Source: AMsMyM6Ljbe0cmvEL9GjkRhVO9FkB14Sd81CEaL6x2lAQ/e0cwEPzujjxelmbNvEe0emkRGcrYvstg== X-Received: by 2002:a17:90b:84:b0:213:de0c:1253 with SMTP id bb4-20020a17090b008400b00213de0c1253mr55573904pjb.74.1668016006644; Wed, 09 Nov 2022 09:46:46 -0800 (PST) Received: from balhae.corp.google.com ([2620:15c:2c1:200:fa05:f3cd:da75:3103]) by smtp.gmail.com with ESMTPSA id a10-20020a63cd4a000000b0043941566481sm7877909pgj.39.2022.11.09.09.46.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 09 Nov 2022 09:46:46 -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 Subject: [PATCH 07/12] perf test: Add 'sqrtloop' test workload Date: Wed, 9 Nov 2022 09:46:30 -0800 Message-Id: <20221109174635.859406-8-namhyung@kernel.org> X-Mailer: git-send-email 2.38.1.431.g37b22c650d-goog In-Reply-To: <20221109174635.859406-1-namhyung@kernel.org> References: <20221109174635.859406-1-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 | 44 +++++++++++++++++++++++++++ 4 files changed, 47 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..f7d1f8d4867b --- /dev/null +++ b/tools/perf/tests/workloads/sqrtloop.c @@ -0,0 +1,44 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#include +#include +#include +#include +#include +#include "../tests.h" + +static volatile int 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); -- 2.38.1.431.g37b22c650d-goog