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 7C763C4332F for ; Wed, 16 Nov 2022 23:39:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231431AbiKPXjt (ORCPT ); Wed, 16 Nov 2022 18:39:49 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:32770 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234561AbiKPXjS (ORCPT ); Wed, 16 Nov 2022 18:39:18 -0500 Received: from mail-pj1-x102d.google.com (mail-pj1-x102d.google.com [IPv6:2607:f8b0:4864:20::102d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9039169DE4; Wed, 16 Nov 2022 15:39:10 -0800 (PST) Received: by mail-pj1-x102d.google.com with SMTP id q1-20020a17090a750100b002139ec1e999so351264pjk.1; Wed, 16 Nov 2022 15:39:10 -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=rrmrlQ/AAcwA49LE/YDY46PPOq6RVCXtH2b5XWXmDxM=; b=kZxKAA/bYyDmZeiqQWpjQlx5Kuapaak/srJrdnnSr34iHO7OOG4s2scDN/NggUyplA WnW0G9RfXpKUdZvaBl2at/8BHTuNprGrX3GMHM41HL6kTJLgV0gz8/yQzcPVIWDHoO6j o7BdNm4EQ0WSoKttavUuVT+ooYcZR22QWckd2FnvBU0PfQA5uw4OJuh2BtgUBQNMPLlb b9ECm+UifdukICwjg9xx4/5NKnjivUO2/VdlQgsQ0SDEDaInfmAokAtkynsPLa335h+I ONiO3suG2LF60BkuT2HADwVTcPkui5dNLk9BSxesH57tW3M8HS3nS35G9dIk+dIDn0u0 Kk0g== 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=rrmrlQ/AAcwA49LE/YDY46PPOq6RVCXtH2b5XWXmDxM=; b=U9nefKhMrqHTTgBgvW3q6dHMdQcPjI5MQOsu+lPQRr+b9WWCgxZmWQlSyToOLug339 /uxH7zTB/mP1MTuayH/s+OubvyYmNiN8pqkQvB3AebiM/SqW4DCqwT3bnCATM0SnA1eA nkUX5dG1qb82VWCwhFUeJi0atRH9/HBgRneTeuSCgNLP2kgCSkvAe/d9exqu6Vrmfczq TeGVWII02HWZ/0yJjpF0oRlDt4RGY5SPDQI1uJa9cs/UNMMinqIte5uDwGlxiHD2aOwx W/WMb6r7cDoZ2SAKy2GJAED0KpChQJMJp9uPMngO0Jx3tuygexfgk98+LcOkla0U7YhG t1Pg== X-Gm-Message-State: ANoB5pnjypEg348gOzyOeu6Kdzh8C1AKjj5jjBfP3xAf5hjZ6Wg0xboY abDkf2Djnb7zI9az02hSqCg= X-Google-Smtp-Source: AA0mqf7cjG++Khnb+FEVk8Zv13uaFJtKWpTthQ0JJmVTbmkTYJBcLdohAh3J2FwiVIgts9nSZ+orXw== X-Received: by 2002:a17:902:8306:b0:187:31da:a27e with SMTP id bd6-20020a170902830600b0018731daa27emr72012plb.111.1668641950027; Wed, 16 Nov 2022 15:39:10 -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.262.2022.11.16.15.39.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 16 Nov 2022 15:39:09 -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 09/12] perf test: Add 'brstack' test workload Date: Wed, 16 Nov 2022 15:38:51 -0800 Message-Id: <20221116233854.1596378-10-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 brstack is to run different kinds of branches repeatedly. This is necessary for brstack test case to verify if it has correct branch info. $ perf test -w brstack I renamed the internal functions to have brstack_ prefix as it's too generic name. Signed-off-by: Namhyung Kim --- tools/perf/tests/builtin-test.c | 1 + tools/perf/tests/tests.h | 1 + tools/perf/tests/workloads/Build | 2 ++ tools/perf/tests/workloads/brstack.c | 41 ++++++++++++++++++++++++++++ 4 files changed, 45 insertions(+) create mode 100644 tools/perf/tests/workloads/brstack.c diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c index 9acb7a93eeb9..69fa56939309 100644 --- a/tools/perf/tests/builtin-test.c +++ b/tools/perf/tests/builtin-test.c @@ -123,6 +123,7 @@ static struct test_workload *workloads[] = { &workload__thloop, &workload__leafloop, &workload__sqrtloop, + &workload__brstack, }; static int num_subtests(const struct test_suite *t) diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h index 18c40319e67c..dc96f59cac2e 100644 --- a/tools/perf/tests/tests.h +++ b/tools/perf/tests/tests.h @@ -204,5 +204,6 @@ DECLARE_WORKLOAD(noploop); DECLARE_WORKLOAD(thloop); DECLARE_WORKLOAD(leafloop); DECLARE_WORKLOAD(sqrtloop); +DECLARE_WORKLOAD(brstack); #endif /* TESTS_H */ diff --git a/tools/perf/tests/workloads/Build b/tools/perf/tests/workloads/Build index 1ca95cb0fdb5..c933cdcf91d1 100644 --- a/tools/perf/tests/workloads/Build +++ b/tools/perf/tests/workloads/Build @@ -4,5 +4,7 @@ perf-y += noploop.o perf-y += thloop.o perf-y += leafloop.o perf-y += sqrtloop.o +perf-y += brstack.o CFLAGS_leafloop.o = -g -O0 -fno-inline -fno-omit-frame-pointer +CFLAGS_brstack.o = -g -O0 -fno-inline diff --git a/tools/perf/tests/workloads/brstack.c b/tools/perf/tests/workloads/brstack.c new file mode 100644 index 000000000000..cd0386d58f97 --- /dev/null +++ b/tools/perf/tests/workloads/brstack.c @@ -0,0 +1,41 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#include +#include "../tests.h" + + +#define BENCH_RUNS 999999 + +static volatile int cnt; + +static void brstack_bar(void) { +} /* return */ + +static void brstack_foo(void) { + brstack_bar(); /* call */ +} /* return */ + +static void brstack_bench(void) { + void (*brstack_foo_ind)(void) = brstack_foo; + + if ((cnt++) % 3) /* branch (cond) */ + brstack_foo(); /* call */ + brstack_bar(); /* call */ + brstack_foo_ind(); /* call (ind) */ +} + +static int brstack(int argc, const char **argv) +{ + int num_loops = BENCH_RUNS; + + if (argc > 0) + num_loops = atoi(argv[0]); + + while (1) { + if ((cnt++) > num_loops) + break; + brstack_bench();/* call */ + } /* branch (uncond) */ + return 0; +} + +DEFINE_WORKLOAD(brstack); -- 2.38.1.584.g0f3c55d4c2-goog