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 84288C433FE for ; Thu, 10 Nov 2022 18:20:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231986AbiKJSUF (ORCPT ); Thu, 10 Nov 2022 13:20:05 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57304 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231862AbiKJSTs (ORCPT ); Thu, 10 Nov 2022 13:19:48 -0500 Received: from mail-pg1-x52f.google.com (mail-pg1-x52f.google.com [IPv6:2607:f8b0:4864:20::52f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ACC684E41D; Thu, 10 Nov 2022 10:19:35 -0800 (PST) Received: by mail-pg1-x52f.google.com with SMTP id e129so2478809pgc.9; Thu, 10 Nov 2022 10:19:35 -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=Ad6CYrOOdzs5XimR11K4fWv4D01X6+lyVjHOyaLup4A=; b=AZHPUnF1x4GURYsUY6xefpVfUR7702OIutkbc4opdUOJCqeqTkFO99CQu417+Gcp/m +Ius47BJMJxks6g4UyQaX2+H0Lc3bEVFhK4xv5h+9pqlVi/5n9JgA1rlANhg+rx7r7oh yJW9yjVg4ZeTSRA1OCMry1ihGhzAtGhgPHJaHzyAftBBHeNDlN5Tsw9fzDkInWVoe8h8 +041TWlJWDneqzBwWZzRQfVBueNXRJOPLqUlPsKYSRtEZztwHS3xSUxuPKPS4Epw3hKY a32V5c2C3HXm3+STKIYPplKJSBrx31MhrGTLH3x/VzNV9dNqqDxq/0AqRdaV66hBqBlP xGwg== 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=Ad6CYrOOdzs5XimR11K4fWv4D01X6+lyVjHOyaLup4A=; b=JuAe4rgkurvbF7s44OtRcF/dyJN+QDwYjssnBEKSIbfRyi1Fa0A3Ru5GeWlfb3lAxo BlWKyvqcSAq5HGs6bV+wH6KLk3gsHcYC69SCXBjceORjn5hbTOAlUJN4bN7Ci2zzS+Z3 BzeCS2SuiVpTR4DpRwf3F8pF6/xgf4sj9268gUn3GyXz48bOAYv9pLfJ7i0P8bowVJ5R 1Mn1o+PiiCUp9sFjKrV7bMl2VDlDsv5Px0AuYzeGWp8WNaRmqHxPwoVcOMC3ses7qZ89 P0dJ+mxPTx+Q5Eso6aG4ht1mDIS9R3Mec0e48hQD0CNvMpSbV+PmYlh6jwpUDIZnFWYV SIaQ== X-Gm-Message-State: ACrzQf3xluZ7tqJ7/nlLUeumNZfVMZH/7dajCsnfgoOqY4pH4AgRRtdf 5r63NBUOm4Fo3j1IbLo+p7o= X-Google-Smtp-Source: AMsMyM7raWsdKBaEOb1DmXLCfVJ5SfWxgeRHWYrQzhC6DDorcsBuXKc6d+u2v0PQWic3FfctB0sGeA== X-Received: by 2002:a63:3d4:0:b0:464:527a:5796 with SMTP id 203-20020a6303d4000000b00464527a5796mr3019420pgd.38.1668104374830; Thu, 10 Nov 2022 10:19:34 -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.121.2022.11.10.10.19.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 10 Nov 2022 10:19:34 -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: Thu, 10 Nov 2022 10:19:17 -0800 Message-Id: <20221110181920.84900-10-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 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 | 39 ++++++++++++++++++++++++++++ 4 files changed, 43 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..61c9a9f24b43 --- /dev/null +++ b/tools/perf/tests/workloads/brstack.c @@ -0,0 +1,39 @@ +/* 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) +{ + if (argc > 0) + cnt = atoi(argv[0]); + + while (1) { + if ((cnt++) > BENCH_RUNS) + break; + brstack_bench();/* call */ + } /* branch (uncond) */ + return 0; +} + +DEFINE_WORKLOAD(brstack); -- 2.38.1.493.g58b659f92b-goog