From nobody Mon Nov 25 17:30:49 2024 Received: from mail-yw1-f202.google.com (mail-yw1-f202.google.com [209.85.128.202]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 564C121766B for ; Fri, 25 Oct 2024 19:21:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.202 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729884095; cv=none; b=A/TDUKrGT/F26MMB0A3ABXIVaseb8lOjR849vzbuqBmutHIuuv781wd3PISE90vTzSIEbCkcI0Dv6wZQlRPa1BG9uKvV7AopRzVpPEuPq45oXuDd8b6gG3HTJ9/2p5fJ92s3K8Klh0mb7itkzjU5v6qQ4XJRYDaJrTCmpkWo6RY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729884095; c=relaxed/simple; bh=h+S7lvjznO6aeDproo7dQHdVN5YR74SQ/ZENnLj7+oI=; h=Date:In-Reply-To:Message-Id:Mime-Version:References:Subject:From: To:Content-Type; b=tWGdUA+p3j2MeECFYzYF7n+5R2Dpo0NWX5+8FNsm7vKlTisiUYmSenuKDmWM3oSi08dHaXVoDQ6W9L6Eo+dkfWaR1HRqr2VODoxctoKdZThdKvWKxqv4fpJr2E0GOzQpXU3VnddpbNsgKHhLkaNlm9ueUaMnvVpl8zsdr8SaS2w= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=Z/2NJzFM; arc=none smtp.client-ip=209.85.128.202 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="Z/2NJzFM" Received: by mail-yw1-f202.google.com with SMTP id 00721157ae682-6e389169f92so46599827b3.0 for ; Fri, 25 Oct 2024 12:21:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1729884090; x=1730488890; darn=vger.kernel.org; h=to:from:subject:references:mime-version:message-id:in-reply-to:date :from:to:cc:subject:date:message-id:reply-to; bh=x7hM2wwF2vu4Jxi4L+kQlwZyT/L+0QugQwYnGtLXglM=; b=Z/2NJzFMVCyuuo6WJokTPGjAF1dE1O9FY74apfMdaH6etNJO5CGZevs4mJ0ofksoB1 nQCAwrSMM4Crd2T7FUmDFuTo1FCDkXpkI8NYvg/ZX6NUA8cY3iMvLJIn5xhVPsiFnk3B c24hyinEziQ0t/X4/DmE98HCDslZw3ZBBON1nJyEoP2OnaYx3fqtPLymE1D6IFRwEQYD QuIs8VQIh0CzXSbchgogxJkbalAuEmlLGWc1wkBGmgM6A7C9y8xTJsxaBAmM5SZ5rdk1 kQHIZ2cq2OI2RcJc3tn1rqN1vT3ArqkUAB7bFHV7lV77W10H5sr2udqmpFTDo83+rchm ZLPg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1729884090; x=1730488890; h=to:from:subject:references:mime-version:message-id:in-reply-to:date :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=x7hM2wwF2vu4Jxi4L+kQlwZyT/L+0QugQwYnGtLXglM=; b=IdkE4cWAL6sWXNsGaP5RbwdRXnpBSXZsQml/GxQgEr962l1gnu+aLc6rOqrba3+cj2 A8acrwKdFWplaUd3n8DmYkqYMuCvLvdBdEHy9UMf0bgKG3caU7STRolQ4sezxu4JEH9V ERSmw6ouFfr1NMuT5yZbF1V1ID0qTcHVkVgf+9YFSuPacFEL/xNBUwukXcZ85KygugQP xuB4CfwMLr+SZzCQUrdj/1hyld81iJ0ltEmNlqG/xjftmnT6UH/EXjOT4o4Hf+QdXTyv KBLlb0xp1/HN3q1oMrvBhA4UID6jdvJ53jhU+j4IlWyW4qpJfwADDzkkCFsrtx6wqVeS j+0w== X-Forwarded-Encrypted: i=1; AJvYcCWdw7maNRg5PfozUF0d/XDRre4n1WCbBdOfg56qZ9K1N31YJwsZ9WhaqepXFVYVX87hf7NiGhgn5GY7ltQ=@vger.kernel.org X-Gm-Message-State: AOJu0YxVp2b3Ax55jpOKFmZVCdm2rdI2UX+vGxkeQrpTFzts9S2RvQKr ilygO37jVihPtwIbeS0AvX8VD/Hu3eSKN6nvFUwDFbdlkr26zwGf/E8exNKSkYhHyGHSYqUrwNH 9/qIW3A== X-Google-Smtp-Source: AGHT+IH8G1Pejx6BA9vj2hHQprjVJkFzlmPXeUNJjxk0MlQSSdot5RN6IZXIER8lTdh7cURruQowv1cmZPO5 X-Received: from irogers.svl.corp.google.com ([2620:15c:2c5:11:5d42:c43e:5e08:3a85]) (user=irogers job=sendgmr) by 2002:a05:690c:6283:b0:6e3:da91:3e17 with SMTP id 00721157ae682-6e9d88b0da5mr91037b3.2.1729884090210; Fri, 25 Oct 2024 12:21:30 -0700 (PDT) Date: Fri, 25 Oct 2024 12:21:06 -0700 In-Reply-To: <20241025192109.132482-1-irogers@google.com> Message-Id: <20241025192109.132482-8-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20241025192109.132482-1-irogers@google.com> X-Mailer: git-send-email 2.47.0.163.g1226f6d8fa-goog Subject: [PATCH v5 07/10] perf test: Run parallel tests in two passes From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , Kan Liang , James Clark , Howard Chu , Athira Jajeev , Michael Petlan , Veronika Molnarova , Dapeng Mi , Thomas Richter , Ilya Leoshkevich , Colin Ian King , Weilin Wang , Andi Kleen , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" In pass 1 run all tests that succeed when run in parallel. In pass 2 sequentially run all remaining tests that are flagged as "exclusive". Sequential and dont_fork tests keep to run in pass 1. Read the exclusive flag from the shell test descriptions, but remove from display to avoid >100 characters. Add error handling to finish tests if starting a later test fails. Mark the task-exit test as exclusive due to issues reported-by James Clark. Tested-by: James Clark Signed-off-by: Ian Rogers --- tools/perf/tests/builtin-test.c | 157 +++++++++++++++++++------------ tools/perf/tests/task-exit.c | 9 +- tools/perf/tests/tests-scripts.c | 7 +- tools/perf/tests/tests.h | 9 ++ 4 files changed, 121 insertions(+), 61 deletions(-) diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-tes= t.c index 8a720ddb0396..b997d0a68ca2 100644 --- a/tools/perf/tests/builtin-test.c +++ b/tools/perf/tests/builtin-test.c @@ -199,6 +199,14 @@ static test_fnptr test_function(const struct test_suit= e *t, int subtest) return t->test_cases[subtest].run_case; } =20 +static bool test_exclusive(const struct test_suite *t, int subtest) +{ + if (subtest <=3D 0) + return t->test_cases[0].exclusive; + + return t->test_cases[subtest].exclusive; +} + static bool perf_test__matches(const char *desc, int curr, int argc, const= char *argv[]) { int i; @@ -242,7 +250,7 @@ static int run_test_child(struct child_process *process) const int signals[] =3D { SIGABRT, SIGBUS, SIGFPE, SIGILL, SIGINT, SIGPIPE, SIGQUIT, SIGSEGV, SIGT= ERM, }; - static struct child_test *child; + struct child_test *child =3D container_of(process, struct child_test, pro= cess); int err; =20 err =3D sigsetjmp(run_test_jmp_buf, 1); @@ -252,7 +260,6 @@ static int run_test_child(struct child_process *process) goto err_out; } =20 - child =3D container_of(process, struct child_test, process); for (size_t i =3D 0; i < ARRAY_SIZE(signals); i++) signal(signals[i], child_test_sig_handler); =20 @@ -305,19 +312,25 @@ static int print_test_result(struct test_suite *t, in= t i, int subtest, int resul return 0; } =20 -static int finish_test(struct child_test **child_tests, int running_test, = int child_test_num, - int width) +static void finish_test(struct child_test **child_tests, int running_test,= int child_test_num, + int width) { struct child_test *child_test =3D child_tests[running_test]; - struct test_suite *t =3D child_test->test; - int i =3D child_test->test_num; - int subi =3D child_test->subtest; - int err =3D child_test->process.err; + struct test_suite *t; + int i, subi, err; bool err_done =3D false; struct strbuf err_output =3D STRBUF_INIT; int last_running =3D -1; int ret; =20 + if (child_test =3D=3D NULL) { + /* Test wasn't started. */ + return; + } + t =3D child_test->test; + i =3D child_test->test_num; + subi =3D child_test->subtest; + err =3D child_test->process.err; /* * For test suites with subtests, display the suite name ahead of the * sub test names. @@ -347,6 +360,8 @@ static int finish_test(struct child_test **child_tests,= int running_test, int ch int running =3D 0; =20 for (int y =3D running_test; y < child_test_num; y++) { + if (child_tests[y] =3D=3D NULL) + continue; if (check_if_command_finished(&child_tests[y]->process) =3D=3D 0) running++; } @@ -399,23 +414,32 @@ static int finish_test(struct child_test **child_test= s, int running_test, int ch print_test_result(t, i, subi, ret, width, /*running=3D*/0); if (err > 0) close(err); - return 0; + zfree(&child_tests[running_test]); } =20 static int start_test(struct test_suite *test, int i, int subi, struct chi= ld_test **child, - int width) + int width, int pass) { int err; =20 *child =3D NULL; if (dont_fork) { - pr_debug("--- start ---\n"); - err =3D test_function(test, subi)(test, subi); - pr_debug("---- end ----\n"); - print_test_result(test, i, subi, err, width, /*running=3D*/0); + if (pass =3D=3D 1) { + pr_debug("--- start ---\n"); + err =3D test_function(test, subi)(test, subi); + pr_debug("---- end ----\n"); + print_test_result(test, i, subi, err, width, /*running=3D*/0); + } + return 0; + } + if (pass =3D=3D 1 && !sequential && test_exclusive(test, subi)) { + /* When parallel, skip exclusive tests on the first pass. */ + return 0; + } + if (pass !=3D 1 && (sequential || !test_exclusive(test, subi))) { + /* Sequential and non-exclusive tests were run on the first pass. */ return 0; } - *child =3D zalloc(sizeof(**child)); if (!*child) return -ENOMEM; @@ -434,10 +458,14 @@ static int start_test(struct test_suite *test, int i,= int subi, struct child_tes (*child)->process.err =3D -1; } (*child)->process.no_exec_cmd =3D run_test_child; - err =3D start_command(&(*child)->process); - if (err || !sequential) - return err; - return finish_test(child, /*running_test=3D*/0, /*child_test_num=3D*/1, w= idth); + if (sequential || pass =3D=3D 2) { + err =3D start_command(&(*child)->process); + if (err) + return err; + finish_test(child, /*running_test=3D*/0, /*child_test_num=3D*/1, width); + return 0; + } + return start_command(&(*child)->process); } =20 #define for_each_test(j, k, t) \ @@ -447,12 +475,11 @@ static int start_test(struct test_suite *test, int i,= int subi, struct child_tes static int __cmd_test(int argc, const char *argv[], struct intlist *skipli= st) { struct test_suite *t; - unsigned int j, k; - int i =3D 0; int width =3D 0; + unsigned int j, k; size_t num_tests =3D 0; struct child_test **child_tests; - int child_test_num =3D 0; + int err =3D 0; =20 for_each_test(j, k, t) { int len =3D strlen(test_description(t, -1)); @@ -475,62 +502,73 @@ static int __cmd_test(int argc, const char *argv[], s= truct intlist *skiplist) if (!child_tests) return -ENOMEM; =20 - for_each_test(j, k, t) { - int curr =3D i++; - - if (!perf_test__matches(test_description(t, -1), curr, argc, argv)) { - bool skip =3D true; + /* + * In parallel mode pass 1 runs non-exclusive tests in parallel, pass 2 + * runs the exclusive tests sequentially. In other modes all tests are + * run in pass 1. + */ + for (int pass =3D 1; pass <=3D 2; pass++) { + int child_test_num =3D 0; + int i =3D 0; + + for_each_test(j, k, t) { + int curr =3D i++; + + if (!perf_test__matches(test_description(t, -1), curr, argc, argv)) { + /* + * Test suite shouldn't be run based on + * description. See if subtest should. + */ + bool skip =3D true; + + for (int subi =3D 0, subn =3D num_subtests(t); subi < subn; subi++) { + if (perf_test__matches(test_description(t, subi), + curr, argc, argv)) + skip =3D false; + } =20 - for (int subi =3D 0, subn =3D num_subtests(t); subi < subn; subi++) { - if (perf_test__matches(test_description(t, subi), - curr, argc, argv)) - skip =3D false; + if (skip) + continue; } =20 - if (skip) + if (intlist__find(skiplist, i)) { + pr_info("%3d: %-*s:", curr + 1, width, test_description(t, -1)); + color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (user override)\n"); continue; - } - - if (intlist__find(skiplist, i)) { - pr_info("%3d: %-*s:", curr + 1, width, test_description(t, -1)); - color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (user override)\n"); - continue; - } - - if (!has_subtests(t)) { - int err =3D start_test(t, curr, -1, &child_tests[child_test_num++], wid= th); + } =20 - if (err) { - /* TODO: if !sequential waitpid the already forked children. */ - free(child_tests); - return err; + if (!has_subtests(t)) { + err =3D start_test(t, curr, -1, &child_tests[child_test_num++], + width, pass); + if (err) + goto err_out; + continue; } - } else { for (int subi =3D 0, subn =3D num_subtests(t); subi < subn; subi++) { - int err; - if (!perf_test__matches(test_description(t, subi), curr, argc, argv)) continue; =20 err =3D start_test(t, curr, subi, &child_tests[child_test_num++], - width); + width, pass); if (err) - return err; + goto err_out; } } - } - for (i =3D 0; i < child_test_num; i++) { if (!sequential) { - int ret =3D finish_test(child_tests, i, child_test_num, width); - - if (ret) - return ret; + /* Parallel mode starts tests but doesn't finish them. Do that now. */ + for (size_t x =3D 0; x < num_tests; x++) + finish_test(child_tests, x, num_tests, width); } - free(child_tests[i]); + } +err_out: + if (err) { + pr_err("Internal test harness failure. Completing any started tests:\n:"= ); + for (size_t x =3D 0; x < num_tests; x++) + finish_test(child_tests, x, num_tests, width); } free(child_tests); - return 0; + return err; } =20 static int perf_test__list(int argc, const char **argv) @@ -656,6 +694,7 @@ int cmd_test(int argc, const char **argv) symbol_conf.priv_size =3D sizeof(int); symbol_conf.try_vmlinux_path =3D true; =20 + if (symbol__init(NULL) < 0) return -1; =20 diff --git a/tools/perf/tests/task-exit.c b/tools/perf/tests/task-exit.c index d33d0952025c..8e328bbd509d 100644 --- a/tools/perf/tests/task-exit.c +++ b/tools/perf/tests/task-exit.c @@ -152,4 +152,11 @@ static int test__task_exit(struct test_suite *test __m= aybe_unused, int subtest _ return err; } =20 -DEFINE_SUITE("Number of exit events of a simple workload", task_exit); +struct test_case tests__task_exit[] =3D { + TEST_CASE_EXCLUSIVE("Number of exit events of a simple workload", task_ex= it), + { .name =3D NULL, } +}; +struct test_suite suite__task_exit =3D { + .desc =3D "Number of exit events of a simple workload", + .test_cases =3D tests__task_exit, +}; diff --git a/tools/perf/tests/tests-scripts.c b/tools/perf/tests/tests-scri= pts.c index ed114b044293..cf3ae0c1d871 100644 --- a/tools/perf/tests/tests-scripts.c +++ b/tools/perf/tests/tests-scripts.c @@ -175,6 +175,7 @@ static void append_script(int dir_fd, const char *name,= char *desc, struct test_suite *test_suite, **result_tmp; struct test_case *tests; size_t len; + char *exclusive; =20 snprintf(link, sizeof(link), "/proc/%d/fd/%d", getpid(), dir_fd); len =3D readlink(link, filename, sizeof(filename)); @@ -191,9 +192,13 @@ static void append_script(int dir_fd, const char *name= , char *desc, return; } tests[0].name =3D strdup_check(name); + exclusive =3D strstr(desc, " (exclusive)"); + if (exclusive !=3D NULL) { + tests[0].exclusive =3D true; + exclusive[0] =3D '\0'; + } tests[0].desc =3D strdup_check(desc); tests[0].run_case =3D shell_test__run; - test_suite =3D zalloc(sizeof(*test_suite)); if (!test_suite) { pr_err("Out of memory while building script test suite list\n"); diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h index 1ed76d4156b6..af284dd47e5c 100644 --- a/tools/perf/tests/tests.h +++ b/tools/perf/tests/tests.h @@ -36,6 +36,7 @@ struct test_case { const char *desc; const char *skip_reason; test_fnptr run_case; + bool exclusive; }; =20 struct test_suite { @@ -62,6 +63,14 @@ struct test_suite { .skip_reason =3D _reason, \ } =20 +#define TEST_CASE_EXCLUSIVE(description, _name) \ + { \ + .name =3D #_name, \ + .desc =3D description, \ + .run_case =3D test__##_name, \ + .exclusive =3D true, \ + } + #define DEFINE_SUITE(description, _name) \ struct test_case tests__##_name[] =3D { \ TEST_CASE(description, _name), \ --=20 2.47.0.163.g1226f6d8fa-goog