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 F34E0C4332F for ; Thu, 10 Nov 2022 18:19:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231876AbiKJSTt (ORCPT ); Thu, 10 Nov 2022 13:19:49 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57078 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231868AbiKJSTm (ORCPT ); Thu, 10 Nov 2022 13:19:42 -0500 Received: from mail-pj1-x1035.google.com (mail-pj1-x1035.google.com [IPv6:2607:f8b0:4864:20::1035]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D26394D5D7; Thu, 10 Nov 2022 10:19:32 -0800 (PST) Received: by mail-pj1-x1035.google.com with SMTP id v4-20020a17090a088400b00212cb0ed97eso2356494pjc.5; Thu, 10 Nov 2022 10:19:32 -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=X+pmvI1xzgAYs9HEK5XMlqqAdnFzxXTz0mFIAnH5WiA=; b=SXm8mv6NhXkEOya2FyhrKvEY7h4ot/P2kILLaBZ0B0zd2kgRzil3ENBZ3nxemj+gd2 3+7DG8IkQC8GdijkxvT9uJ9AnAFBGY003LnJSSY/RZ9qih0QPESFalwtrwyct5Z2kOZP oeOCk2vKNcAv3mAU0wjlCtOfh90nsxfHKcvyrb1jYR0yFMBfvNrXUzvdmunO/pN4PS9q PfFD9S0RDoH3PCtU7RoJuNeJpw6hboE2MuwDTyaYD8CN+hPTRloqjHKTHAnaxqx6/LWZ USa+SwanrSyOlpOdSuxyHJ/9e7NXrYUSIVVmFqxqLHG7C2davi6R595U39abpjp9x6p6 N10g== 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=X+pmvI1xzgAYs9HEK5XMlqqAdnFzxXTz0mFIAnH5WiA=; b=o0IwPXBxK/prIErlHR58LsnDq9xxAQtydgmjnF0fMJ24b/o03FtYnzjHOGfhQU6gES wj56GYZTVRwA5fUylj0Pg12U6sSmIRsPDBsoIpeRt1HMg5LNuQxwjMwBln1kXdf5mhHl rVQ5WkezY3YSWy8R7GaKg6ePmn7p586xScbSV974sGeNq6JAp6JChyt/ZXxNe5fC/8/u Qldj/+PTDaDPjkX730qS1TGhLM7/clVpydERtxIrYDfmO3yNeoHRTh1XxezJR1bf4mrl kIrkYb8sTzunRkH5cCGZn4bSeIETtvt7+IKaS7OXW18lhhu8DxZyQhqTw5NqTUD+ZxCq Vleg== X-Gm-Message-State: ACrzQf0d+kChtwru2oQSRRUR+x4SERw22HEGxXOE3lJdcQ0dRo9VqP6z jZv+qi63a6nXFzPTL9TWUd0= X-Google-Smtp-Source: AMsMyM6LLC0QmhwUSYLJ1aItNWdYbc07z1zOtI900fqR1z0U7nSnkGayfchsn32F+1ah8cSkp/Xcmw== X-Received: by 2002:a17:903:3293:b0:186:867b:e24 with SMTP id jh19-20020a170903329300b00186867b0e24mr64818447plb.127.1668104372255; Thu, 10 Nov 2022 10:19:32 -0800 (PST) Received: from youngsil.svl.corp.google.com ([2620:15c:2d4:203:12cb:b694:b3d8:467c]) by smtp.gmail.com with ESMTPSA id e9-20020a170902784900b00183e2a96414sm11518744pln.121.2022.11.10.10.19.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 10 Nov 2022 10:19:31 -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: Thu, 10 Nov 2022 10:19:15 -0800 Message-Id: <20221110181920.84900-8-namhyung@kernel.org> X-Mailer: git-send-email 2.38.1.493.g58b659f92b-goog In-Reply-To: <20221110181920.84900-1-namhyung@kernel.org> References: <20221110181920.84900-1-namhyung@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-perf-users@vger.kernel.org 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); -- 2.38.1.493.g58b659f92b-goog