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 X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=MAILING_LIST_MULTI,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BF2ECC07520 for ; Thu, 13 Sep 2018 12:55:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 77F262133F for ; Thu, 13 Sep 2018 12:55:51 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 77F262133F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728319AbeIMSFK (ORCPT ); Thu, 13 Sep 2018 14:05:10 -0400 Received: from mx1.redhat.com ([209.132.183.28]:34854 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727009AbeIMSFJ (ORCPT ); Thu, 13 Sep 2018 14:05:09 -0400 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 25BFDC050006; Thu, 13 Sep 2018 12:55:48 +0000 (UTC) Received: from krava.brq.redhat.com (unknown [10.43.17.10]) by smtp.corp.redhat.com (Postfix) with ESMTP id 1C358600C8; Thu, 13 Sep 2018 12:55:45 +0000 (UTC) From: Jiri Olsa To: Arnaldo Carvalho de Melo Cc: Frederic Weisbecker , lkml , Ingo Molnar , Namhyung Kim , Alexander Shishkin , Peter Zijlstra , Andi Kleen , Alexey Budankov Subject: [PATCH 24/48] perf tools: Add a test case for timed map groups handling Date: Thu, 13 Sep 2018 14:54:26 +0200 Message-Id: <20180913125450.21342-25-jolsa@kernel.org> In-Reply-To: <20180913125450.21342-1-jolsa@kernel.org> References: <20180913125450.21342-1-jolsa@kernel.org> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.31]); Thu, 13 Sep 2018 12:55:48 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Namhyung Kim A test case for verifying thread->mg and ->mg_list handling during time change and new thread__find_addr_map_by_time() and friends. Cc: Frederic Weisbecker Link: http://lkml.kernel.org/n/tip-20jkz8hzs9njsvmrseo2o3s8@git.kernel.org Signed-off-by: Namhyung Kim Signed-off-by: Jiri Olsa --- tools/perf/tests/Build | 1 + tools/perf/tests/builtin-test.c | 4 ++ tools/perf/tests/tests.h | 1 + tools/perf/tests/thread-mg-time.c | 94 +++++++++++++++++++++++++++++++ 4 files changed, 100 insertions(+) create mode 100644 tools/perf/tests/thread-mg-time.c diff --git a/tools/perf/tests/Build b/tools/perf/tests/Build index 715eb17d8047..d14a532f87f1 100644 --- a/tools/perf/tests/Build +++ b/tools/perf/tests/Build @@ -27,6 +27,7 @@ perf-y += mmap-thread-lookup.o perf-y += thread-comm.o perf-y += thread-mg-share.o perf-y += thread-lookup-time.o +perf-y += thread-mg-time.o perf-y += switch-tracking.o perf-y += keep-tracking.o perf-y += code-reading.o diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c index c985ece3fab8..ee58cb40ebc2 100644 --- a/tools/perf/tests/builtin-test.c +++ b/tools/perf/tests/builtin-test.c @@ -287,6 +287,10 @@ static struct test generic_tests[] = { .desc = "Test thread lookup with time", .func = test__thread_lookup_time, }, + { + .desc = "Test thread map group handling with time", + .func = test__thread_mg_time, + }, { .func = NULL, }, diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h index 60fdc7bea1d8..cd7cca258398 100644 --- a/tools/perf/tests/tests.h +++ b/tools/perf/tests/tests.h @@ -106,6 +106,7 @@ int test__unit_number__scnprint(struct test *test, int subtest); int test__mem2node(struct test *t, int subtest); int test__thread_comm(struct test *test, int subtest); int test__thread_lookup_time(struct test *test, int subtest); +int test__thread_mg_time(struct test *test, int subtest); bool test__bp_signal_is_supported(void); diff --git a/tools/perf/tests/thread-mg-time.c b/tools/perf/tests/thread-mg-time.c new file mode 100644 index 000000000000..6a735f59c097 --- /dev/null +++ b/tools/perf/tests/thread-mg-time.c @@ -0,0 +1,94 @@ +#include +#include "tests.h" +#include "machine.h" +#include "thread.h" +#include "map.h" +#include "debug.h" + +#define PERF_MAP_START 0x40000 + +int test__thread_mg_time(struct test *test __maybe_unused, int subtest __maybe_unused) +{ + struct machines machines; + struct machine *machine; + struct thread *t; + struct map_groups *mg; + struct map *map, *old_map; + struct addr_location al = { .map = NULL, }; + + /* + * This test is to check whether it can retrieve a correct map + * for a given time. When multi-file data storage is enabled, + * those task/comm/mmap events are processed first so the + * later sample should find a matching comm properly. + */ + machines__init(&machines); + machine = &machines.host; + + /* this is needed to add/find map by time */ + perf_has_index = true; + + t = machine__findnew_thread(machine, 0, 0); + mg = t->mg; + + map = dso__new_map("/usr/bin/perf"); + map->start = PERF_MAP_START; + map->end = PERF_MAP_START + 0x1000; + + thread__insert_map(t, map); + + if (verbose > 1) + map_groups__fprintf(t->mg, stderr); + + thread__find_addr_map(t, PERF_RECORD_MISC_USER, MAP__FUNCTION, + PERF_MAP_START, &al); + + TEST_ASSERT_VAL("cannot find mapping for perf", al.map != NULL); + TEST_ASSERT_VAL("non matched mapping found", al.map == map); + TEST_ASSERT_VAL("incorrect map groups", al.map->groups == mg); + TEST_ASSERT_VAL("incorrect map groups", al.map->groups == t->mg); + + thread__find_addr_map_by_time(t, PERF_RECORD_MISC_USER, MAP__FUNCTION, + PERF_MAP_START, &al, -1ULL); + + TEST_ASSERT_VAL("cannot find timed mapping for perf", al.map != NULL); + TEST_ASSERT_VAL("non matched timed mapping", al.map == map); + TEST_ASSERT_VAL("incorrect timed map groups", al.map->groups == mg); + TEST_ASSERT_VAL("incorrect map groups", al.map->groups == t->mg); + + + pr_debug("simulate EXEC event (generate new mg)\n"); + __thread__set_comm(t, "perf-test", 10000, true); + + old_map = map; + + map = dso__new_map("/usr/bin/perf-test"); + map->start = PERF_MAP_START; + map->end = PERF_MAP_START + 0x2000; + + thread__insert_map(t, map); + + if (verbose > 1) + map_groups__fprintf(t->mg, stderr); + + thread__find_addr_map(t, PERF_RECORD_MISC_USER, MAP__FUNCTION, + PERF_MAP_START + 4, &al); + + TEST_ASSERT_VAL("cannot find mapping for perf-test", al.map != NULL); + TEST_ASSERT_VAL("invalid mapping found", al.map == map); + TEST_ASSERT_VAL("incorrect map groups", al.map->groups != mg); + TEST_ASSERT_VAL("incorrect map groups", al.map->groups == t->mg); + + pr_debug("searching map in the old mag groups\n"); + thread__find_addr_map_by_time(t, PERF_RECORD_MISC_USER, MAP__FUNCTION, + PERF_MAP_START, &al, 5000); + + TEST_ASSERT_VAL("cannot find timed mapping for perf-test", al.map != NULL); + TEST_ASSERT_VAL("non matched timed mapping", al.map == old_map); + TEST_ASSERT_VAL("incorrect timed map groups", al.map->groups == mg); + TEST_ASSERT_VAL("incorrect map groups", al.map->groups != t->mg); + + machine__delete_threads(machine); + machines__exit(&machines); + return 0; +} -- 2.17.1