simpleperf/cmd_record_test.cpp

   1 /*
   2  * Copyright (C) 2015 The Android Open Source Project
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *      http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #include <gtest/gtest.h>
  18
  19 #include <android-base/stringprintf.h>
  20
  21 #include "command.h"
  22 #include "environment.h"
  23 #include "event_selection_set.h"
  24 #include "record.h"
  25 #include "record_file.h"
  26 #include "test_util.h"
  27
  28 using namespace PerfFileFormat;
  29
  30 static std::unique_ptr<Command> RecordCmd() {
  31   return CreateCommandInstance("record");
  32 }
  33
  34 TEST(record_cmd, no_options) {
  35   ASSERT_TRUE(RecordCmd()->Run({"sleep", "1"}));
  36 }
  37
  38 TEST(record_cmd, system_wide_option) {
  39   ASSERT_TRUE(RecordCmd()->Run({"-a", "sleep", "1"}));
  40 }
  41
  42 TEST(record_cmd, sample_period_option) {
  43   ASSERT_TRUE(RecordCmd()->Run({"-c", "100000", "sleep", "1"}));
  44 }
  45
  46 TEST(record_cmd, event_option) {
  47   ASSERT_TRUE(RecordCmd()->Run({"-e", "cpu-clock", "sleep", "1"}));
  48 }
  49
  50 TEST(record_cmd, freq_option) {
  51   ASSERT_TRUE(RecordCmd()->Run({"-f", "99", "sleep", "1"}));
  52   ASSERT_TRUE(RecordCmd()->Run({"-F", "99", "sleep", "1"}));
  53 }
  54
  55 TEST(record_cmd, output_file_option) {
  56   ASSERT_TRUE(RecordCmd()->Run({"-o", "perf2.data", "sleep", "1"}));
  57 }
  58
  59 TEST(record_cmd, dump_kernel_mmap) {
  60   ASSERT_TRUE(RecordCmd()->Run({"sleep", "1"}));
  61   std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance("perf.data");
  62   ASSERT_TRUE(reader != nullptr);
  63   std::vector<std::unique_ptr<Record>> records = reader->DataSection();
  64   ASSERT_GT(records.size(), 0U);
  65   bool have_kernel_mmap = false;
  66   for (auto& record : records) {
  67     if (record->header.type == PERF_RECORD_MMAP) {
  68       const MmapRecord* mmap_record = static_cast<const MmapRecord*>(record.get());
  69       if (mmap_record->filename == DEFAULT_KERNEL_MMAP_NAME) {
  70         have_kernel_mmap = true;
  71         break;
  72       }
  73     }
  74   }
  75   ASSERT_TRUE(have_kernel_mmap);
  76 }
  77
  78 TEST(record_cmd, dump_build_id_feature) {
  79   ASSERT_TRUE(RecordCmd()->Run({"sleep", "1"}));
  80   std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance("perf.data");
  81   ASSERT_TRUE(reader != nullptr);
  82   const FileHeader& file_header = reader->FileHeader();
  83   ASSERT_TRUE(file_header.features[FEAT_BUILD_ID / 8] & (1 << (FEAT_BUILD_ID % 8)));
  84   ASSERT_GT(reader->FeatureSectionDescriptors().size(), 0u);
  85 }
  86
  87 TEST(record_cmd, tracepoint_event) {
  88   ASSERT_TRUE(RecordCmd()->Run({"-a", "-e", "sched:sched_switch", "sleep", "1"}));
  89 }
  90
  91 TEST(record_cmd, branch_sampling) {
  92   if (IsBranchSamplingSupported()) {
  93     ASSERT_TRUE(RecordCmd()->Run({"-a", "-b", "sleep", "1"}));
  94     ASSERT_TRUE(RecordCmd()->Run({"-j", "any,any_call,any_ret,ind_call", "sleep", "1"}));
  95     ASSERT_TRUE(RecordCmd()->Run({"-j", "any,k", "sleep", "1"}));
  96     ASSERT_TRUE(RecordCmd()->Run({"-j", "any,u", "sleep", "1"}));
  97     ASSERT_FALSE(RecordCmd()->Run({"-j", "u", "sleep", "1"}));
  98   } else {
  99     GTEST_LOG_(INFO)
 100         << "This test does nothing as branch stack sampling is not supported on this device.";
 101   }
 102 }
 103
 104 TEST(record_cmd, event_modifier) {
 105   ASSERT_TRUE(RecordCmd()->Run({"-e", "cpu-cycles:u", "sleep", "1"}));
 106 }
 107
 108 TEST(record_cmd, fp_callchain_sampling) {
 109   ASSERT_TRUE(RecordCmd()->Run({"--call-graph", "fp", "sleep", "1"}));
 110 }
 111
 112 TEST(record_cmd, dwarf_callchain_sampling) {
 113   if (IsDwarfCallChainSamplingSupported()) {
 114     ASSERT_TRUE(RecordCmd()->Run({"--call-graph", "dwarf", "sleep", "1"}));
 115     ASSERT_TRUE(RecordCmd()->Run({"--call-graph", "dwarf,16384", "sleep", "1"}));
 116     ASSERT_TRUE(RecordCmd()->Run({"-g", "sleep", "1"}));
 117   } else {
 118     GTEST_LOG_(INFO)
 119         << "This test does nothing as dwarf callchain sampling is not supported on this device.";
 120   }
 121 }
 122
 123 TEST(record_cmd, no_unwind_option) {
 124   if (IsDwarfCallChainSamplingSupported()) {
 125     ASSERT_TRUE(RecordCmd()->Run({"--call-graph", "dwarf", "--no-unwind", "sleep", "1"}));
 126   } else {
 127     GTEST_LOG_(INFO)
 128         << "This test does nothing as dwarf callchain sampling is not supported on this device.";
 129   }
 130   ASSERT_FALSE(RecordCmd()->Run({"--no-unwind", "sleep", "1"}));
 131 }
 132
 133 TEST(record_cmd, post_unwind_option) {
 134   if (IsDwarfCallChainSamplingSupported()) {
 135     ASSERT_TRUE(RecordCmd()->Run({"--call-graph", "dwarf", "--post-unwind", "sleep", "1"}));
 136   } else {
 137     GTEST_LOG_(INFO)
 138         << "This test does nothing as dwarf callchain sampling is not supported on this device.";
 139   }
 140   ASSERT_FALSE(RecordCmd()->Run({"--post-unwind", "sleep", "1"}));
 141   ASSERT_FALSE(
 142       RecordCmd()->Run({"--call-graph", "dwarf", "--no-unwind", "--post-unwind", "sleep", "1"}));
 143 }
 144
 145 TEST(record_cmd, existing_processes) {
 146   std::vector<std::unique_ptr<Workload>> workloads;
 147   CreateProcesses(2, &workloads);
 148   std::string pid_list =
 149       android::base::StringPrintf("%d,%d", workloads[0]->GetPid(), workloads[1]->GetPid());
 150   ASSERT_TRUE(RecordCmd()->Run({"-p", pid_list}));
 151 }
 152
 153 TEST(record_cmd, existing_threads) {
 154   std::vector<std::unique_ptr<Workload>> workloads;
 155   CreateProcesses(2, &workloads);
 156   // Process id can also be used as thread id in linux.
 157   std::string tid_list =
 158       android::base::StringPrintf("%d,%d", workloads[0]->GetPid(), workloads[1]->GetPid());
 159   ASSERT_TRUE(RecordCmd()->Run({"-t", tid_list}));
 160 }
 161
 162 TEST(record_cmd, no_monitored_threads) {
 163   ASSERT_FALSE(RecordCmd()->Run({""}));
 164 }
 165
 166 TEST(record_cmd, more_than_one_event_types) {
 167   ASSERT_TRUE(RecordCmd()->Run({"-e", "cpu-cycles,cpu-clock", "sleep", "1"}));
 168   ASSERT_TRUE(RecordCmd()->Run({"-e", "cpu-cycles", "-e", "cpu-clock", "sleep", "1"}));
 169 }
 170
 171 TEST(record_cmd, cpu_option) {
 172   ASSERT_TRUE(RecordCmd()->Run({"--cpu", "0", "sleep", "1"}));
 173   ASSERT_TRUE(RecordCmd()->Run({"--cpu", "0", "-a", "sleep", "1"}));
 174 }