henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 1 | /* |
| 2 | * libjingle |
| 3 | * Copyright 2004--2013, Google Inc. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions are met: |
| 7 | * |
| 8 | * 1. Redistributions of source code must retain the above copyright notice, |
| 9 | * this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| 11 | * this list of conditions and the following disclaimer in the documentation |
| 12 | * and/or other materials provided with the distribution. |
| 13 | * 3. The name of the author may not be used to endorse or promote products |
| 14 | * derived from this software without specific prior written permission. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 18 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
| 19 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 20 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 21 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
| 22 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 23 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| 24 | * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| 25 | * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 26 | */ |
| 27 | |
| 28 | #include "talk/base/gunit.h" |
| 29 | #include "talk/base/profiler.h" |
| 30 | #include "talk/base/thread.h" |
| 31 | |
| 32 | namespace { |
| 33 | |
| 34 | const int kWaitMs = 250; |
| 35 | const double kWaitSec = 0.250; |
| 36 | const double kTolerance = 0.1; |
| 37 | |
| 38 | const char* TestFunc() { |
| 39 | PROFILE_F(); |
| 40 | talk_base::Thread::SleepMs(kWaitMs); |
| 41 | return __FUNCTION__; |
| 42 | } |
| 43 | |
| 44 | } // namespace |
| 45 | |
| 46 | namespace talk_base { |
| 47 | |
| 48 | TEST(ProfilerTest, TestFunction) { |
| 49 | ASSERT_TRUE(Profiler::Instance()->Clear()); |
| 50 | // Profile a long-running function. |
| 51 | const char* function_name = TestFunc(); |
| 52 | const ProfilerEvent* event = Profiler::Instance()->GetEvent(function_name); |
| 53 | ASSERT_TRUE(event != NULL); |
| 54 | EXPECT_FALSE(event->is_started()); |
| 55 | EXPECT_EQ(1, event->event_count()); |
| 56 | EXPECT_NEAR(kWaitSec, event->mean(), kTolerance); |
| 57 | // Run it a second time. |
| 58 | TestFunc(); |
| 59 | EXPECT_FALSE(event->is_started()); |
| 60 | EXPECT_EQ(2, event->event_count()); |
| 61 | EXPECT_NEAR(kWaitSec, event->mean(), kTolerance); |
| 62 | EXPECT_NEAR(kWaitSec * 2, event->total_time(), kTolerance * 2); |
| 63 | EXPECT_DOUBLE_EQ(event->mean(), event->total_time() / event->event_count()); |
| 64 | } |
| 65 | |
| 66 | TEST(ProfilerTest, TestScopedEvents) { |
| 67 | const std::string kEvent1Name = "Event 1"; |
| 68 | const std::string kEvent2Name = "Event 2"; |
| 69 | const int kEvent2WaitMs = 150; |
| 70 | const double kEvent2WaitSec = 0.150; |
| 71 | const ProfilerEvent* event1; |
| 72 | const ProfilerEvent* event2; |
| 73 | ASSERT_TRUE(Profiler::Instance()->Clear()); |
| 74 | { // Profile a scope. |
| 75 | PROFILE(kEvent1Name); |
| 76 | event1 = Profiler::Instance()->GetEvent(kEvent1Name); |
| 77 | ASSERT_TRUE(event1 != NULL); |
| 78 | EXPECT_TRUE(event1->is_started()); |
| 79 | EXPECT_EQ(0, event1->event_count()); |
| 80 | talk_base::Thread::SleepMs(kWaitMs); |
| 81 | EXPECT_TRUE(event1->is_started()); |
| 82 | } |
| 83 | // Check the result. |
| 84 | EXPECT_FALSE(event1->is_started()); |
| 85 | EXPECT_EQ(1, event1->event_count()); |
| 86 | EXPECT_NEAR(kWaitSec, event1->mean(), kTolerance); |
| 87 | { // Profile a second event. |
| 88 | PROFILE(kEvent2Name); |
| 89 | event2 = Profiler::Instance()->GetEvent(kEvent2Name); |
| 90 | ASSERT_TRUE(event2 != NULL); |
| 91 | EXPECT_FALSE(event1->is_started()); |
| 92 | EXPECT_TRUE(event2->is_started()); |
| 93 | talk_base::Thread::SleepMs(kEvent2WaitMs); |
| 94 | } |
| 95 | // Check the result. |
| 96 | EXPECT_FALSE(event2->is_started()); |
| 97 | EXPECT_EQ(1, event2->event_count()); |
| 98 | EXPECT_NEAR(kEvent2WaitSec, event2->mean(), kTolerance); |
| 99 | // Make sure event1 is unchanged. |
| 100 | EXPECT_FALSE(event1->is_started()); |
| 101 | EXPECT_EQ(1, event1->event_count()); |
| 102 | { // Run another event 1. |
| 103 | PROFILE(kEvent1Name); |
| 104 | EXPECT_TRUE(event1->is_started()); |
| 105 | talk_base::Thread::SleepMs(kWaitMs); |
| 106 | } |
| 107 | // Check the result. |
| 108 | EXPECT_FALSE(event1->is_started()); |
| 109 | EXPECT_EQ(2, event1->event_count()); |
| 110 | EXPECT_NEAR(kWaitSec, event1->mean(), kTolerance); |
| 111 | EXPECT_NEAR(kWaitSec * 2, event1->total_time(), kTolerance * 2); |
| 112 | EXPECT_DOUBLE_EQ(event1->mean(), |
| 113 | event1->total_time() / event1->event_count()); |
| 114 | } |
| 115 | |
| 116 | TEST(ProfilerTest, Clear) { |
| 117 | ASSERT_TRUE(Profiler::Instance()->Clear()); |
| 118 | PROFILE_START("event"); |
| 119 | EXPECT_FALSE(Profiler::Instance()->Clear()); |
| 120 | EXPECT_TRUE(Profiler::Instance()->GetEvent("event") != NULL); |
| 121 | PROFILE_STOP("event"); |
| 122 | EXPECT_TRUE(Profiler::Instance()->Clear()); |
| 123 | EXPECT_EQ(NULL, Profiler::Instance()->GetEvent("event")); |
| 124 | } |
| 125 | |
| 126 | } // namespace talk_base |