1 /*
2 * Copyright (c) 2011 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
TEST(CpuWrapperTest,Usage)26 TEST(CpuWrapperTest, Usage) {
27 Trace::CreateTrace();
28 std::string trace_file = webrtc::test::OutputPath() +
29 "cpu_wrapper_unittest.txt";
30 Trace::SetTraceFile(trace_file.c_str());
31 Trace::SetLevelFilter(webrtc::kTraceAll);
32 printf("Number of cores detected:%u\n", CpuInfo::DetectNumberOfCores());
33 scoped_ptr<CpuWrapper> cpu(CpuWrapper::CreateCpu());
34 ASSERT_TRUE(cpu.get() != NULL);
35 scoped_ptr<EventWrapper> sleep_event(EventWrapper::Create());
36 ASSERT_TRUE(sleep_event.get() != NULL);
37
38 int num_iterations = 0;
39 WebRtc_UWord32 num_cores = 0;
40 WebRtc_UWord32* cores = NULL;
41 bool cpu_usage_available = cpu->CpuUsageMultiCore(num_cores, cores) != -1;
42 // Initializing the CPU measurements may take a couple of seconds on Windows.
43 // Since the initialization is lazy we need to wait until it is completed.
44 // Should not take more than 10000 ms.
45 while (cpu_usage_available && (++num_iterations < 10000)) {
46 if (cores != NULL) {
47 ASSERT_GT(num_cores, 0u);
48 break;
49 }
50 sleep_event->Wait(1);
51 cpu_usage_available = cpu->CpuUsageMultiCore(num_cores, cores) != -1;
52 }
53 ASSERT_TRUE(cpu_usage_available);
54
55 const WebRtc_Word32 average = cpu->CpuUsageMultiCore(num_cores, cores);
56 ASSERT_TRUE(cores != NULL);
57 EXPECT_GT(num_cores, 0u);
58 EXPECT_GE(average, 0);
59 EXPECT_LE(average, 100);
60
61 printf("\nNumber of cores:%d\n", num_cores);
62 printf("Average cpu:%d\n", average);
63 for (WebRtc_UWord32 i = 0; i < num_cores; i++) {
64 printf("Core:%u CPU:%u \n", i, cores[i]);
65 EXPECT_GE(cores[i], 0u);
66 EXPECT_LE(cores[i], 100u);
67 }
68
69 Trace::ReturnTrace();
70 };
71