1 /* 2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #include "system_wrappers/interface/cpu_wrapper.h" 12 13 #include "gtest/gtest.h" 14 #include "system_wrappers/interface/cpu_info.h" 15 #include "system_wrappers/interface/event_wrapper.h" 16 #include "system_wrappers/interface/scoped_ptr.h" 17 #include "system_wrappers/interface/trace.h" 18 #include "testsupport/fileutils.h" 19 20 using webrtc::CpuInfo; 21 using webrtc::CpuWrapper; 22 using webrtc::EventWrapper; 23 using webrtc::scoped_ptr; 24 using webrtc::Trace; 25 26 // This test is flaky on Windows/Release. 27 // http://code.google.com/p/webrtc/issues/detail?id=290 28 #ifdef _WIN32 29 #define MAYBE_Usage DISABLED_Usage 30 #else 31 #define MAYBE_Usage Usage 32 #endif 33 TEST(CpuWrapperTest, MAYBE_Usage) { 34 Trace::CreateTrace(); 35 std::string trace_file = webrtc::test::OutputPath() + 36 "cpu_wrapper_unittest.txt"; 37 Trace::SetTraceFile(trace_file.c_str()); 38 Trace::SetLevelFilter(webrtc::kTraceAll); 39 printf("Number of cores detected:%u\n", CpuInfo::DetectNumberOfCores()); 40 scoped_ptr<CpuWrapper> cpu(CpuWrapper::CreateCpu()); 41 ASSERT_TRUE(cpu.get() != NULL); 42 scoped_ptr<EventWrapper> sleep_event(EventWrapper::Create()); 43 ASSERT_TRUE(sleep_event.get() != NULL); 44 45 int num_iterations = 0; 46 WebRtc_UWord32 num_cores = 0; 47 WebRtc_UWord32* cores = NULL; 48 bool cpu_usage_available = cpu->CpuUsageMultiCore(num_cores, cores) != -1; 49 // Initializing the CPU measurements may take a couple of seconds on Windows. 50 // Since the initialization is lazy we need to wait until it is completed. 51 // Should not take more than 10000 ms. 52 while (!cpu_usage_available && (++num_iterations < 10000)) { 53 if (cores != NULL) { 54 ASSERT_GT(num_cores, 0u); 55 break; 56 } 57 sleep_event->Wait(1); 58 cpu_usage_available = cpu->CpuUsageMultiCore(num_cores, cores) != -1; 59 } 60 ASSERT_TRUE(cpu_usage_available); 61 62 const WebRtc_Word32 average = cpu->CpuUsageMultiCore(num_cores, cores); 63 ASSERT_TRUE(cores != NULL); 64 EXPECT_GT(num_cores, 0u); 65 EXPECT_GE(average, 0); 66 EXPECT_LE(average, 100); 67 68 printf("\nNumber of cores:%d\n", num_cores); 69 printf("Average cpu:%d\n", average); 70 for (WebRtc_UWord32 i = 0; i < num_cores; i++) { 71 printf("Core:%u CPU:%u \n", i, cores[i]); 72 EXPECT_GE(cores[i], 0u); 73 EXPECT_LE(cores[i], 100u); 74 } 75 76 Trace::ReturnTrace(); 77 }; 78
