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-rw-r--r--perfprofd/tests/perfprofd_test.cc1743
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+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <algorithm>
+#include <cctype>
+#include <functional>
+#include <iterator>
+#include <memory>
+#include <mutex>
+#include <regex>
+#include <string>
+#include <unordered_set>
+
+#include <fcntl.h>
+#include <stdio.h>
+#include <libgen.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <android-base/file.h>
+#include <android-base/logging.h>
+#include <android-base/macros.h>
+#include <android-base/stringprintf.h>
+#include <android-base/strings.h>
+#include <android-base/thread_annotations.h>
+#include <gtest/gtest.h>
+#include <zlib.h>
+
+#include "config.h"
+#include "configreader.h"
+#include "map_utils.h"
+#include "perfprofdcore.h"
+#include "perfprofd_cmdline.h"
+#include "perfprofd_perf.h"
+#include "perfprofd_threaded_handler.h"
+#include "quipper_helper.h"
+#include "symbolizer.h"
+
+#include "perfprofd_record.pb.h"
+
+using namespace android::perfprofd::quipper;
+
+static_assert(android::base::kEnableDChecks, "Expected DCHECKs to be enabled");
+
+//
+// Set to argv[0] on startup
+//
+static std::string gExecutableRealpath;
+
+namespace {
+
+using android::base::LogId;
+using android::base::LogSeverity;
+
+class TestLogHelper {
+ public:
+ void Install() {
+ using namespace std::placeholders;
+ android::base::SetLogger(
+ std::bind(&TestLogHelper::TestLogFunction, this, _1, _2, _3, _4, _5, _6));
+ }
+
+ std::string JoinTestLog(const char* delimiter) {
+ std::unique_lock<std::mutex> ul(lock_);
+ return android::base::Join(test_log_messages_, delimiter);
+ }
+ template <typename Predicate>
+ std::string JoinTestLog(const char* delimiter, Predicate pred) {
+ std::unique_lock<std::mutex> ul(lock_);
+ std::vector<std::string> tmp;
+ std::copy_if(test_log_messages_.begin(),
+ test_log_messages_.end(),
+ std::back_inserter(tmp),
+ pred);
+ return android::base::Join(tmp, delimiter);
+ }
+
+ private:
+ void TestLogFunction(LogId log_id,
+ LogSeverity severity,
+ const char* tag,
+ const char* file,
+ unsigned int line,
+ const char* message) {
+ std::unique_lock<std::mutex> ul(lock_);
+ constexpr char log_characters[] = "VDIWEFF";
+ char severity_char = log_characters[severity];
+ test_log_messages_.push_back(android::base::StringPrintf("%c: %s", severity_char, message));
+
+ if (severity >= LogSeverity::FATAL_WITHOUT_ABORT) {
+ android::base::StderrLogger(log_id, severity, tag, file, line, message);
+ }
+ }
+
+ private:
+ std::mutex lock_;
+
+ std::vector<std::string> test_log_messages_;
+};
+
+} // namespace
+
+// Path to perf executable on device
+#define PERFPATH "/system/bin/perf"
+
+// Temporary config file that we will emit for the daemon to read
+#define CONFIGFILE "perfprofd.conf"
+
+static bool bothWhiteSpace(char lhs, char rhs)
+{
+ return (std::isspace(lhs) && std::isspace(rhs));
+}
+
+#ifdef __ANDROID__
+
+static bool IsPerfSupported() {
+ auto check_perf_supported = []() {
+#if defined(__i386__) || defined(__x86_64__)
+ // Cloud devices may suppress perf. Check for arch_perfmon.
+ std::string cpuinfo;
+ if (!android::base::ReadFileToString("/proc/cpuinfo", &cpuinfo)) {
+ // This is pretty unexpected. Return true to see if we can run tests anyways.
+ return true;
+ }
+ return cpuinfo.find("arch_perfmon") != std::string::npos;
+#else
+ // Expect other architectures to have perf support.
+ return true;
+#endif
+ };
+ static bool perf_supported = check_perf_supported();
+ return perf_supported;
+}
+
+#endif
+
+//
+// Squeeze out repeated whitespace from expected/actual logs.
+//
+static std::string squeezeWhite(const std::string &str,
+ const char *tag,
+ bool dump=false)
+{
+ if (dump) { fprintf(stderr, "raw %s is %s\n", tag, str.c_str()); }
+ std::string result(str);
+ std::replace(result.begin(), result.end(), '\n', ' ');
+ auto new_end = std::unique(result.begin(), result.end(), bothWhiteSpace);
+ result.erase(new_end, result.end());
+ while (result.begin() != result.end() && std::isspace(*result.rbegin())) {
+ result.pop_back();
+ }
+ if (dump) { fprintf(stderr, "squeezed %s is %s\n", tag, result.c_str()); }
+ return result;
+}
+
+//
+// Replace all occurrences of a string with another string.
+//
+static std::string replaceAll(const std::string &str,
+ const std::string &from,
+ const std::string &to)
+{
+ std::string ret = "";
+ size_t pos = 0;
+ while (pos < str.size()) {
+ size_t found = str.find(from, pos);
+ if (found == std::string::npos) {
+ ret += str.substr(pos);
+ break;
+ }
+ ret += str.substr(pos, found - pos) + to;
+ pos = found + from.size();
+ }
+ return ret;
+}
+
+//
+// Replace occurrences of special variables in the string.
+//
+#ifdef __ANDROID__
+static std::string expandVars(const std::string &str) {
+#ifdef __LP64__
+ return replaceAll(str, "$NATIVE_TESTS", "/data/nativetest64");
+#else
+ return replaceAll(str, "$NATIVE_TESTS", "/data/nativetest");
+#endif
+}
+#endif
+
+class PerfProfdTest : public testing::Test {
+ protected:
+ virtual void SetUp() {
+ test_logger.Install();
+ create_dirs();
+ }
+
+ virtual void TearDown() {
+ android::base::SetLogger(android::base::StderrLogger);
+
+ // TODO: proper management of test files. For now, use old system() code.
+ for (const auto dir : { &dest_dir, &conf_dir }) {
+ std::string cmd("rm -rf ");
+ cmd += *dir;
+ int ret = system(cmd.c_str());
+ CHECK_EQ(0, ret);
+ }
+ }
+
+ protected:
+ //
+ // Check to see if the log messages emitted by the daemon
+ // match the expected result. By default we use a partial
+ // match, e.g. if we see the expected excerpt anywhere in the
+ // result, it's a match (for exact match, set exact to true)
+ //
+ ::testing::AssertionResult CompareLogMessages(const std::string& expected,
+ bool exactMatch = false) {
+ std::string sqexp = squeezeWhite(expected, "expected");
+
+ // Strip out JIT errors.
+ std::regex jit_regex("E: Failed to open ELF file: [^ ]*dalvik-jit-code-cache.*");
+ auto strip_jit = [&](const std::string& str) {
+ std::smatch jit_match;
+ return !std::regex_match(str, jit_match, jit_regex);
+ };
+ std::string sqact = squeezeWhite(test_logger.JoinTestLog(" ", strip_jit), "actual");
+
+ if (exactMatch) {
+ if (sqexp == sqact) {
+ return ::testing::AssertionSuccess() << sqexp << " is equal to " << sqact;
+ }
+ return ::testing::AssertionFailure() << "Expected:" << std::endl << sqexp << std::endl
+ << "Received:" << std::endl << sqact;
+ } else {
+ if (sqact.find(sqexp) == std::string::npos) {
+ return ::testing::AssertionFailure()
+ << "Expected to find:" << std::endl << sqexp << std::endl
+ << "in:" << std::endl << sqact;
+ }
+ return ::testing::AssertionSuccess() << sqexp << " was found in " << sqact;
+ }
+ }
+
+ // test_dir is the directory containing the test executable and
+ // any files associated with the test (will be created by the harness).
+ std::string test_dir;
+
+ // dest_dir is a temporary directory that we're using as the destination directory.
+ // It is backed by temp_dir1.
+ std::string dest_dir;
+
+ // conf_dir is a temporary directory that we're using as the configuration directory.
+ // It is backed by temp_dir2.
+ std::string conf_dir;
+
+ TestLogHelper test_logger;
+
+ private:
+ void create_dirs() {
+ temp_dir1.reset(new TemporaryDir());
+ temp_dir2.reset(new TemporaryDir());
+ dest_dir = temp_dir1->path;
+ conf_dir = temp_dir2->path;
+ test_dir = android::base::Dirname(gExecutableRealpath);
+ }
+
+ std::unique_ptr<TemporaryDir> temp_dir1;
+ std::unique_ptr<TemporaryDir> temp_dir2;
+};
+
+///
+/// Helper class to kick off a run of the perfprofd daemon with a specific
+/// config file.
+///
+class PerfProfdRunner {
+ public:
+ explicit PerfProfdRunner(const std::string& config_dir)
+ : config_dir_(config_dir)
+ {
+ config_path_ = config_dir + "/" CONFIGFILE;
+ }
+
+ ~PerfProfdRunner()
+ {
+ remove_processed_file();
+ }
+
+ void addToConfig(const std::string &line)
+ {
+ config_text_ += line;
+ config_text_ += "\n";
+ }
+
+ void remove_semaphore_file()
+ {
+ std::string semaphore(config_dir_);
+ semaphore += "/" SEMAPHORE_FILENAME;
+ unlink(semaphore.c_str());
+ }
+
+ void create_semaphore_file()
+ {
+ std::string semaphore(config_dir_);
+ semaphore += "/" SEMAPHORE_FILENAME;
+ close(open(semaphore.c_str(), O_WRONLY|O_CREAT, 0600));
+ }
+
+ void write_processed_file(int start_seq, int end_seq)
+ {
+ std::string processed = config_dir_ + "/" PROCESSED_FILENAME;
+ FILE *fp = fopen(processed.c_str(), "w");
+ for (int i = start_seq; i < end_seq; i++) {
+ fprintf(fp, "%d\n", i);
+ }
+ fclose(fp);
+ }
+
+ void remove_processed_file()
+ {
+ std::string processed = config_dir_ + "/" PROCESSED_FILENAME;
+ unlink(processed.c_str());
+ }
+
+ struct LoggingConfig : public Config {
+ void Sleep(size_t seconds) override {
+ // Log sleep calls but don't sleep.
+ LOG(INFO) << "sleep " << seconds << " seconds";
+ }
+
+ bool IsProfilingEnabled() const override {
+ //
+ // Check for existence of semaphore file in config directory
+ //
+ if (access(config_directory.c_str(), F_OK) == -1) {
+ PLOG(WARNING) << "unable to open config directory " << config_directory;
+ return false;
+ }
+
+ // Check for existence of semaphore file
+ std::string semaphore_filepath = config_directory
+ + "/" + SEMAPHORE_FILENAME;
+ if (access(semaphore_filepath.c_str(), F_OK) == -1) {
+ return false;
+ }
+
+ return true;
+ }
+ };
+
+ int invoke()
+ {
+ static const char *argv[3] = { "perfprofd", "-c", "" };
+ argv[2] = config_path_.c_str();
+
+ writeConfigFile(config_path_, config_text_);
+
+ // execute daemon main
+ LoggingConfig config;
+ return perfprofd_main(3, (char **) argv, &config);
+ }
+
+ private:
+ std::string config_dir_;
+ std::string config_path_;
+ std::string config_text_;
+
+ void writeConfigFile(const std::string &config_path,
+ const std::string &config_text)
+ {
+ FILE *fp = fopen(config_path.c_str(), "w");
+ ASSERT_TRUE(fp != nullptr);
+ fprintf(fp, "%s\n", config_text.c_str());
+ fclose(fp);
+ }
+};
+
+//......................................................................
+
+static std::string encoded_file_path(const std::string& dest_dir,
+ int seq) {
+ return android::base::StringPrintf("%s/perf.data.encoded.%d",
+ dest_dir.c_str(), seq);
+}
+
+static void readEncodedProfile(const std::string& dest_dir,
+ bool compressed,
+ android::perfprofd::PerfprofdRecord& encodedProfile)
+{
+ struct stat statb;
+ int perf_data_stat_result = stat(encoded_file_path(dest_dir, 0).c_str(), &statb);
+ ASSERT_NE(-1, perf_data_stat_result);
+
+ // read
+ std::string encoded;
+ encoded.resize(statb.st_size);
+ FILE *ifp = fopen(encoded_file_path(dest_dir, 0).c_str(), "r");
+ ASSERT_NE(nullptr, ifp);
+ size_t items_read = fread((void*) encoded.data(), statb.st_size, 1, ifp);
+ ASSERT_EQ(1, items_read);
+ fclose(ifp);
+
+ // uncompress
+ if (compressed && !encoded.empty()) {
+ z_stream stream;
+ stream.zalloc = Z_NULL;
+ stream.zfree = Z_NULL;
+ stream.opaque = Z_NULL;
+
+ {
+ constexpr int kWindowBits = 15;
+ constexpr int kGzipEncoding = 16;
+ int init_result = inflateInit2(&stream, kWindowBits | kGzipEncoding);
+ if (init_result != Z_OK) {
+ LOG(ERROR) << "Could not initialize libz stream " << init_result;
+ return;
+ }
+ }
+
+ std::string buf;
+ buf.reserve(2 * encoded.size());
+ stream.avail_in = encoded.size();
+ stream.next_in = reinterpret_cast<Bytef*>(const_cast<char*>(encoded.data()));
+
+ int result;
+ do {
+ uint8_t chunk[1024];
+ stream.next_out = static_cast<Bytef*>(chunk);
+ stream.avail_out = arraysize(chunk);
+
+ result = inflate(&stream, 0);
+ const size_t amount = arraysize(chunk) - stream.avail_out;
+ if (amount > 0) {
+ if (buf.capacity() - buf.size() < amount) {
+ buf.reserve(buf.capacity() + 64u * 1024u);
+ CHECK_LE(amount, buf.capacity() - buf.size());
+ }
+ size_t index = buf.size();
+ buf.resize(buf.size() + amount);
+ memcpy(reinterpret_cast<uint8_t*>(const_cast<char*>(buf.data())) + index, chunk, amount);
+ }
+ } while (result == Z_OK);
+ inflateEnd(&stream);
+ if (result != Z_STREAM_END) {
+ LOG(ERROR) << "Finished with not-Z_STREAM_END " << result;
+ return;
+ }
+ encoded = buf;
+ }
+
+ // decode
+ encodedProfile.ParseFromString(encoded);
+}
+
+#define RAW_RESULT(x) #x
+
+TEST_F(PerfProfdTest, TestUtil)
+{
+ EXPECT_EQ("", replaceAll("", "", ""));
+ EXPECT_EQ("zzbc", replaceAll("abc", "a", "zz"));
+ EXPECT_EQ("azzc", replaceAll("abc", "b", "zz"));
+ EXPECT_EQ("abzz", replaceAll("abc", "c", "zz"));
+ EXPECT_EQ("xxyyzz", replaceAll("abc", "abc", "xxyyzz"));
+}
+
+TEST_F(PerfProfdTest, MissingGMS)
+{
+ //
+ // AWP requires cooperation between the daemon and the GMS core
+ // piece. If we're running on a device that has an old or damaged
+ // version of GMS core, then the config directory we're interested in
+ // may not be there. This test insures that the daemon does the
+ // right thing in this case.
+ //
+ PerfProfdRunner runner(conf_dir);
+ runner.addToConfig("only_debug_build=0");
+ runner.addToConfig("trace_config_read=0");
+ runner.addToConfig("config_directory=/does/not/exist");
+ runner.addToConfig("main_loop_iterations=1");
+ runner.addToConfig("use_fixed_seed=1");
+ runner.addToConfig("collection_interval=100");
+
+ // Kick off daemon
+ int daemon_main_return_code = runner.invoke();
+
+ // Check return code from daemon
+ EXPECT_EQ(0, daemon_main_return_code);
+
+ // Verify log contents
+ const std::string expected = RAW_RESULT(
+ I: sleep 90 seconds
+ W: unable to open config directory /does/not/exist: No such file or directory
+ I: profile collection skipped (missing config directory)
+ );
+
+ // check to make sure entire log matches
+ EXPECT_TRUE(CompareLogMessages(expected));
+}
+
+
+TEST_F(PerfProfdTest, MissingOptInSemaphoreFile)
+{
+ //
+ // Android device owners must opt in to "collect and report usage
+ // data" in order for us to be able to collect profiles. The opt-in
+ // check is performed in the GMS core component; if the check
+ // passes, then it creates a semaphore file for the daemon to pick
+ // up on.
+ //
+ PerfProfdRunner runner(conf_dir);
+ runner.addToConfig("only_debug_build=0");
+ std::string cfparam("config_directory="); cfparam += conf_dir;
+ runner.addToConfig(cfparam);
+ std::string ddparam("destination_directory="); ddparam += dest_dir;
+ runner.addToConfig(ddparam);
+ runner.addToConfig("main_loop_iterations=1");
+ runner.addToConfig("use_fixed_seed=1");
+ runner.addToConfig("collection_interval=100");
+
+ runner.remove_semaphore_file();
+
+ // Kick off daemon
+ int daemon_main_return_code = runner.invoke();
+
+ // Check return code from daemon
+ EXPECT_EQ(0, daemon_main_return_code);
+
+ // Verify log contents
+ const std::string expected = RAW_RESULT(
+ I: profile collection skipped (missing config directory)
+ );
+ // check to make sure log excerpt matches
+ EXPECT_TRUE(CompareLogMessages(expected));
+}
+
+TEST_F(PerfProfdTest, MissingPerfExecutable)
+{
+ //
+ // Perfprofd uses the 'simpleperf' tool to collect profiles
+ // (although this may conceivably change in the future). This test
+ // checks to make sure that if 'simpleperf' is not present we bail out
+ // from collecting profiles.
+ //
+ PerfProfdRunner runner(conf_dir);
+ runner.addToConfig("only_debug_build=0");
+ runner.addToConfig("trace_config_read=1");
+ std::string cfparam("config_directory="); cfparam += conf_dir;
+ runner.addToConfig(cfparam);
+ std::string ddparam("destination_directory="); ddparam += dest_dir;
+ runner.addToConfig(ddparam);
+ runner.addToConfig("main_loop_iterations=1");
+ runner.addToConfig("use_fixed_seed=1");
+ runner.addToConfig("collection_interval=100");
+ runner.addToConfig("perf_path=/does/not/exist");
+
+ // Create semaphore file
+ runner.create_semaphore_file();
+
+ // Kick off daemon
+ int daemon_main_return_code = runner.invoke();
+
+ // Check return code from daemon
+ EXPECT_EQ(0, daemon_main_return_code);
+
+ // expected log contents
+ const std::string expected = RAW_RESULT(
+ I: profile collection skipped (missing 'perf' executable)
+ );
+ // check to make sure log excerpt matches
+ EXPECT_TRUE(CompareLogMessages(expected));
+}
+
+TEST_F(PerfProfdTest, BadPerfRun)
+{
+ //
+ // Perf tools tend to be tightly coupled with a specific kernel
+ // version -- if things are out of sync perf could fail or
+ // crash. This test makes sure that we detect such a case and log
+ // the error.
+ //
+ PerfProfdRunner runner(conf_dir);
+ runner.addToConfig("only_debug_build=0");
+ std::string cfparam("config_directory="); cfparam += conf_dir;
+ runner.addToConfig(cfparam);
+ std::string ddparam("destination_directory="); ddparam += dest_dir;
+ runner.addToConfig(ddparam);
+ runner.addToConfig("main_loop_iterations=1");
+ runner.addToConfig("use_fixed_seed=1");
+ runner.addToConfig("collection_interval=100");
+#ifdef __ANDROID__
+ runner.addToConfig("perf_path=/system/bin/false");
+#else
+ runner.addToConfig("perf_path=/bin/false");
+#endif
+
+ // Create semaphore file
+ runner.create_semaphore_file();
+
+ // Kick off daemon
+ int daemon_main_return_code = runner.invoke();
+
+ // Check return code from daemon
+ EXPECT_EQ(0, daemon_main_return_code);
+
+ // Verify log contents. Because of perferr logging containing pids and test paths,
+ // it is easier to have three expected parts.
+ const std::string expected1 = "W: perf bad exit status 1";
+ const std::string expected2 = "bin/false record";
+ const std::string expected3 = "W: profile collection failed";
+
+ // check to make sure log excerpt matches
+ EXPECT_TRUE(CompareLogMessages(expected1));
+ EXPECT_TRUE(CompareLogMessages(expected2));
+ EXPECT_TRUE(CompareLogMessages(expected3));
+}
+
+TEST_F(PerfProfdTest, ConfigFileParsing)
+{
+ //
+ // Gracefully handly malformed items in the config file
+ //
+ PerfProfdRunner runner(conf_dir);
+ runner.addToConfig("only_debug_build=0");
+ runner.addToConfig("main_loop_iterations=1");
+ runner.addToConfig("collection_interval=100");
+ runner.addToConfig("use_fixed_seed=1");
+ runner.addToConfig("destination_directory=/does/not/exist");
+
+ // assorted bad syntax
+ runner.addToConfig("collection_interval=-1");
+ runner.addToConfig("collection_interval=18446744073709551615");
+ runner.addToConfig("nonexistent_key=something");
+ runner.addToConfig("no_equals_stmt");
+
+ // Kick off daemon
+ int daemon_main_return_code = runner.invoke();
+
+ // Check return code from daemon
+ EXPECT_EQ(0, daemon_main_return_code);
+
+ // Verify log contents
+ const std::string expected = RAW_RESULT(
+ W: line 6: value -1 cannot be parsed
+ W: line 7: specified value 18446744073709551615 for 'collection_interval' outside permitted range [0 4294967295]
+ W: line 8: unknown option 'nonexistent_key'
+ W: line 9: line malformed (no '=' found)
+ );
+
+ // check to make sure log excerpt matches
+ EXPECT_TRUE(CompareLogMessages(expected));
+}
+
+TEST_F(PerfProfdTest, ConfigFileParsing_Events) {
+ auto check_event_config = [](const Config& config,
+ size_t index,
+ const std::vector<std::string>& names,
+ bool group,
+ uint32_t period) {
+ if (config.event_config.size() <= index) {
+ return ::testing::AssertionFailure() << "Not enough entries " << config.event_config.size()
+ << " " << index;
+ }
+ const auto& elem = config.event_config[index];
+
+ if (elem.group != group) {
+ return ::testing::AssertionFailure() << "Type wrong " << elem.group << " " << group;
+ }
+
+ if (elem.sampling_period != period) {
+ return ::testing::AssertionFailure() << "Period wrong " << elem.sampling_period << " "
+ << period;
+ }
+
+ auto strvec = [](const std::vector<std::string>& v) {
+ return "[" + android::base::Join(v, ',') + "]";
+ };
+ if (elem.events.size() != names.size()) {
+ return ::testing::AssertionFailure() << "Names wrong " << strvec(elem.events) << " "
+ << strvec(names);
+ }
+ for (size_t i = 0; i != elem.events.size(); ++i) {
+ if (elem.events[i] != names[i]) {
+ return ::testing::AssertionFailure() << "Names wrong at " << i << ": "
+ << strvec(elem.events) << " "
+ << strvec(names);
+ }
+ }
+ return ::testing::AssertionSuccess();
+ };
+
+ {
+ std::string data = "-e_hello,world=1\n"
+ "-g_foo,bar=2\n"
+ "-e_abc,xyz=3\n"
+ "-g_ftrace:test,ftrace:test2=4";
+
+ ConfigReader reader;
+ std::string error_msg;
+ ASSERT_TRUE(reader.Read(data, true, &error_msg)) << error_msg;
+
+ PerfProfdRunner::LoggingConfig config;
+ reader.FillConfig(&config);
+
+ EXPECT_TRUE(check_event_config(config, 0, { "hello", "world" }, false, 1));
+ EXPECT_TRUE(check_event_config(config, 1, { "foo", "bar" }, true, 2));
+ EXPECT_TRUE(check_event_config(config, 2, { "abc", "xyz" }, false, 3));
+ EXPECT_TRUE(check_event_config(config, 3, { "ftrace:test", "ftrace:test2" }, true, 4));
+ }
+
+ {
+ std::string data = "-e_hello,world=dummy";
+
+ ConfigReader reader;
+ std::string error_msg;
+ EXPECT_FALSE(reader.Read(data, true, &error_msg));
+ }
+
+ {
+ std::string data = "-g_hello,world=dummy";
+
+ ConfigReader reader;
+ std::string error_msg;
+ EXPECT_FALSE(reader.Read(data, true, &error_msg));
+ }
+}
+
+
+TEST_F(PerfProfdTest, ConfigDump) {
+ constexpr const char* kConfigElems[] = {
+ "collection_interval=14400",
+ "use_fixed_seed=1",
+ "main_loop_iterations=2",
+ "destination_directory=/does/not/exist",
+ "config_directory=a",
+ "perf_path=/system/xbin/simpleperf2",
+ "sampling_period=3",
+ "sampling_frequency=4",
+ "sample_duration=5",
+ "only_debug_build=1",
+ "hardwire_cpus=1",
+ "hardwire_cpus_max_duration=6",
+ "max_unprocessed_profiles=7",
+ "stack_profile=1",
+ "trace_config_read=1",
+ "collect_cpu_utilization=1",
+ "collect_charging_state=1",
+ "collect_booting=1",
+ "collect_camera_active=1",
+ "process=8",
+ "use_elf_symbolizer=1",
+ "symbolize_everything=1",
+ "compress=1",
+ "dropbox=1",
+ "fail_on_unsupported_events=1",
+ "-e_hello,world=1",
+ "-g_foo,bar=2",
+ "-e_abc,xyz=3",
+ "-g_ftrace:test,ftrace:test2=4",
+ };
+
+ std::string input;
+ for (const char* elem : kConfigElems) {
+ input.append(elem);
+ input.append("\n");
+ }
+
+ ConfigReader reader;
+ std::string error_msg;
+ ASSERT_TRUE(reader.Read(input, false, &error_msg)) << error_msg;
+
+ PerfProfdRunner::LoggingConfig config;
+ reader.FillConfig(&config);
+
+ std::string output = ConfigReader::ConfigToString(config);
+ for (const char* elem : kConfigElems) {
+ EXPECT_TRUE(output.find(elem) != std::string::npos) << elem << " not in " << output;
+ }
+}
+
+TEST_F(PerfProfdTest, ProfileCollectionAnnotations)
+{
+ unsigned util1 = collect_cpu_utilization();
+ EXPECT_LE(util1, 100);
+ EXPECT_GE(util1, 0);
+
+ // NB: expectation is that when we run this test, the device will be
+ // completed booted, will be on charger, and will not have the camera
+ // active.
+ EXPECT_FALSE(get_booting());
+#ifdef __ANDROID__
+ EXPECT_TRUE(get_charging());
+#endif
+ EXPECT_FALSE(get_camera_active());
+}
+
+namespace {
+
+template <typename Iterator>
+size_t CountEvents(const quipper::PerfDataProto& proto) {
+ size_t count = 0;
+ for (Iterator it(proto); it != it.end(); ++it) {
+ count++;
+ }
+ return count;
+}
+
+size_t CountCommEvents(const quipper::PerfDataProto& proto) {
+ return CountEvents<CommEventIterator>(proto);
+}
+size_t CountMmapEvents(const quipper::PerfDataProto& proto) {
+ return CountEvents<MmapEventIterator>(proto);
+}
+size_t CountSampleEvents(const quipper::PerfDataProto& proto) {
+ return CountEvents<SampleEventIterator>(proto);
+}
+size_t CountForkEvents(const quipper::PerfDataProto& proto) {
+ return CountEvents<ForkEventIterator>(proto);
+}
+size_t CountExitEvents(const quipper::PerfDataProto& proto) {
+ return CountEvents<ExitEventIterator>(proto);
+}
+
+std::string CreateStats(const quipper::PerfDataProto& proto) {
+ std::ostringstream oss;
+ oss << "Mmap events: " << CountMmapEvents(proto) << std::endl;
+ oss << "Sample events: " << CountSampleEvents(proto) << std::endl;
+ oss << "Comm events: " << CountCommEvents(proto) << std::endl;
+ oss << "Fork events: " << CountForkEvents(proto) << std::endl;
+ oss << "Exit events: " << CountExitEvents(proto) << std::endl;
+ return oss.str();
+}
+
+std::string FormatSampleEvent(const quipper::PerfDataProto_SampleEvent& sample) {
+ std::ostringstream oss;
+ if (sample.has_pid()) {
+ oss << "pid=" << sample.pid();
+ }
+ if (sample.has_tid()) {
+ oss << " tid=" << sample.tid();
+ }
+ if (sample.has_ip()) {
+ oss << " ip=" << sample.ip();
+ }
+ if (sample.has_addr()) {
+ oss << " addr=" << sample.addr();
+ }
+ if (sample.callchain_size() > 0) {
+ oss << " callchain=";
+ for (uint64_t cc : sample.callchain()) {
+ oss << "->" << cc;
+ }
+ }
+ return oss.str();
+}
+
+}
+
+struct BasicRunWithCannedPerf : PerfProfdTest {
+ void VerifyBasicCannedProfile(const android::perfprofd::PerfprofdRecord& encodedProfile) {
+ const quipper::PerfDataProto& perf_data = encodedProfile;
+
+ // Expect 21108 events.
+ EXPECT_EQ(21108, perf_data.events_size()) << CreateStats(perf_data);
+
+ EXPECT_EQ(48, CountMmapEvents(perf_data)) << CreateStats(perf_data);
+ EXPECT_EQ(19986, CountSampleEvents(perf_data)) << CreateStats(perf_data);
+ EXPECT_EQ(1033, CountCommEvents(perf_data)) << CreateStats(perf_data);
+ EXPECT_EQ(15, CountForkEvents(perf_data)) << CreateStats(perf_data);
+ EXPECT_EQ(26, CountExitEvents(perf_data)) << CreateStats(perf_data);
+
+ if (HasNonfatalFailure()) {
+ FAIL();
+ }
+
+ {
+ MmapEventIterator mmap(perf_data);
+ constexpr std::pair<const char*, uint64_t> kMmapEvents[] = {
+ std::make_pair("[kernel.kallsyms]_text", 0),
+ std::make_pair("/system/lib/libc.so", 3067412480u),
+ std::make_pair("/system/vendor/lib/libdsutils.so", 3069911040u),
+ std::make_pair("/system/lib/libc.so", 3067191296u),
+ std::make_pair("/system/lib/libc++.so", 3069210624u),
+ std::make_pair("/data/dalvik-cache/arm/system@framework@boot.oat", 1900048384u),
+ std::make_pair("/system/lib/libjavacore.so", 2957135872u),
+ std::make_pair("/system/vendor/lib/libqmi_encdec.so", 3006644224u),
+ std::make_pair("/data/dalvik-cache/arm/system@framework@wifi-service.jar@classes.dex",
+ 3010351104u),
+ std::make_pair("/system/lib/libart.so", 3024150528u),
+ std::make_pair("/system/lib/libz.so", 3056410624u),
+ std::make_pair("/system/lib/libicui18n.so", 3057610752u),
+ };
+ for (auto& pair : kMmapEvents) {
+ EXPECT_STREQ(pair.first, mmap->mmap_event().filename().c_str());
+ EXPECT_EQ(pair.second, mmap->mmap_event().start()) << pair.first;
+ ++mmap;
+ }
+ }
+
+ {
+ CommEventIterator comm(perf_data);
+ constexpr const char* kCommEvents[] = {
+ "init", "kthreadd", "ksoftirqd/0", "kworker/u:0H", "migration/0", "khelper",
+ "netns", "modem_notifier", "smd_channel_clo", "smsm_cb_wq", "rpm-smd", "kworker/u:1H",
+ };
+ for (auto str : kCommEvents) {
+ EXPECT_STREQ(str, comm->comm_event().comm().c_str());
+ ++comm;
+ }
+ }
+
+ {
+ SampleEventIterator samples(perf_data);
+ constexpr const char* kSampleEvents[] = {
+ "pid=0 tid=0 ip=3222720196",
+ "pid=0 tid=0 ip=3222910876",
+ "pid=0 tid=0 ip=3222910876",
+ "pid=0 tid=0 ip=3222910876",
+ "pid=0 tid=0 ip=3222910876",
+ "pid=0 tid=0 ip=3222910876",
+ "pid=0 tid=0 ip=3222910876",
+ "pid=3 tid=3 ip=3231975108",
+ "pid=5926 tid=5926 ip=3231964952",
+ "pid=5926 tid=5926 ip=3225342428",
+ "pid=5926 tid=5926 ip=3223841448",
+ "pid=5926 tid=5926 ip=3069807920",
+ };
+ for (auto str : kSampleEvents) {
+ EXPECT_STREQ(str, FormatSampleEvent(samples->sample_event()).c_str());
+ ++samples;
+ }
+
+ // Skip some samples.
+ for (size_t i = 0; i != 5000; ++i) {
+ ++samples;
+ }
+ constexpr const char* kSampleEvents2[] = {
+ "pid=5938 tid=5938 ip=3069630992",
+ "pid=5938 tid=5938 ip=3069626616",
+ "pid=5938 tid=5938 ip=3069626636",
+ "pid=5938 tid=5938 ip=3069637212",
+ "pid=5938 tid=5938 ip=3069637208",
+ "pid=5938 tid=5938 ip=3069637252",
+ "pid=5938 tid=5938 ip=3069346040",
+ "pid=5938 tid=5938 ip=3069637128",
+ "pid=5938 tid=5938 ip=3069626616",
+ };
+ for (auto str : kSampleEvents2) {
+ EXPECT_STREQ(str, FormatSampleEvent(samples->sample_event()).c_str());
+ ++samples;
+ }
+
+ // Skip some samples.
+ for (size_t i = 0; i != 5000; ++i) {
+ ++samples;
+ }
+ constexpr const char* kSampleEvents3[] = {
+ "pid=5938 tid=5938 ip=3069912036",
+ "pid=5938 tid=5938 ip=3069637260",
+ "pid=5938 tid=5938 ip=3069631024",
+ "pid=5938 tid=5938 ip=3069346064",
+ "pid=5938 tid=5938 ip=3069637356",
+ "pid=5938 tid=5938 ip=3069637144",
+ "pid=5938 tid=5938 ip=3069912036",
+ "pid=5938 tid=5938 ip=3069912036",
+ "pid=5938 tid=5938 ip=3069631244",
+ };
+ for (auto str : kSampleEvents3) {
+ EXPECT_STREQ(str, FormatSampleEvent(samples->sample_event()).c_str());
+ ++samples;
+ }
+ }
+ }
+};
+
+TEST_F(BasicRunWithCannedPerf, Basic)
+{
+ //
+ // Verify the portion of the daemon that reads and encodes
+ // perf.data files. Here we run the encoder on a canned perf.data
+ // file and verify that the resulting protobuf contains what
+ // we think it should contain.
+ //
+ std::string input_perf_data(test_dir);
+ input_perf_data += "/canned.perf.data";
+
+ // Set up config to avoid these annotations (they are tested elsewhere)
+ ConfigReader config_reader;
+ config_reader.overrideUnsignedEntry("collect_cpu_utilization", 0);
+ config_reader.overrideUnsignedEntry("collect_charging_state", 0);
+ config_reader.overrideUnsignedEntry("collect_camera_active", 0);
+
+ // Disable compression.
+ config_reader.overrideUnsignedEntry("compress", 0);
+
+ PerfProfdRunner::LoggingConfig config;
+ config_reader.FillConfig(&config);
+
+ // Kick off encoder and check return code
+ PROFILE_RESULT result =
+ encode_to_proto(input_perf_data, encoded_file_path(dest_dir, 0).c_str(), config, 0, nullptr);
+ ASSERT_EQ(OK_PROFILE_COLLECTION, result) << test_logger.JoinTestLog(" ");
+
+ // Read and decode the resulting perf.data.encoded file
+ android::perfprofd::PerfprofdRecord encodedProfile;
+ readEncodedProfile(dest_dir, false, encodedProfile);
+
+ VerifyBasicCannedProfile(encodedProfile);
+}
+
+TEST_F(BasicRunWithCannedPerf, Compressed)
+{
+ //
+ // Verify the portion of the daemon that reads and encodes
+ // perf.data files. Here we run the encoder on a canned perf.data
+ // file and verify that the resulting protobuf contains what
+ // we think it should contain.
+ //
+ std::string input_perf_data(test_dir);
+ input_perf_data += "/canned.perf.data";
+
+ // Set up config to avoid these annotations (they are tested elsewhere)
+ ConfigReader config_reader;
+ config_reader.overrideUnsignedEntry("collect_cpu_utilization", 0);
+ config_reader.overrideUnsignedEntry("collect_charging_state", 0);
+ config_reader.overrideUnsignedEntry("collect_camera_active", 0);
+
+ // Enable compression.
+ config_reader.overrideUnsignedEntry("compress", 1);
+
+ PerfProfdRunner::LoggingConfig config;
+ config_reader.FillConfig(&config);
+
+ // Kick off encoder and check return code
+ PROFILE_RESULT result =
+ encode_to_proto(input_perf_data, encoded_file_path(dest_dir, 0).c_str(), config, 0, nullptr);
+ ASSERT_EQ(OK_PROFILE_COLLECTION, result) << test_logger.JoinTestLog(" ");
+
+ // Read and decode the resulting perf.data.encoded file
+ android::perfprofd::PerfprofdRecord encodedProfile;
+ readEncodedProfile(dest_dir, true, encodedProfile);
+
+ VerifyBasicCannedProfile(encodedProfile);
+}
+
+class BasicRunWithCannedPerfWithSymbolizer : public BasicRunWithCannedPerf {
+ protected:
+ std::vector<::testing::AssertionResult> Run(bool symbolize_everything, size_t expected_count) {
+ //
+ // Verify the portion of the daemon that reads and encodes
+ // perf.data files. Here we run the encoder on a canned perf.data
+ // file and verify that the resulting protobuf contains what
+ // we think it should contain.
+ //
+ std::string input_perf_data(test_dir);
+ input_perf_data += "/canned.perf.data";
+
+ // Set up config to avoid these annotations (they are tested elsewhere)
+ ConfigReader config_reader;
+ config_reader.overrideUnsignedEntry("collect_cpu_utilization", 0);
+ config_reader.overrideUnsignedEntry("collect_charging_state", 0);
+ config_reader.overrideUnsignedEntry("collect_camera_active", 0);
+
+ // Disable compression.
+ config_reader.overrideUnsignedEntry("compress", 0);
+
+ if (symbolize_everything) {
+ config_reader.overrideUnsignedEntry("symbolize_everything", 1);
+ }
+
+ PerfProfdRunner::LoggingConfig config;
+ config_reader.FillConfig(&config);
+
+ // Kick off encoder and check return code
+ struct TestSymbolizer : public perfprofd::Symbolizer {
+ std::string Decode(const std::string& dso, uint64_t address) override {
+ return dso + "@" + std::to_string(address);
+ }
+ bool GetMinExecutableVAddr(const std::string& dso, uint64_t* addr) override {
+ *addr = 4096;
+ return true;
+ }
+ };
+ TestSymbolizer test_symbolizer;
+ PROFILE_RESULT result =
+ encode_to_proto(input_perf_data,
+ encoded_file_path(dest_dir, 0).c_str(),
+ config,
+ 0,
+ &test_symbolizer);
+ if (result != OK_PROFILE_COLLECTION) {
+ return { ::testing::AssertionFailure() << "Profile collection failed: " << result };
+ }
+
+ std::vector<::testing::AssertionResult> ret;
+
+ // Read and decode the resulting perf.data.encoded file
+ android::perfprofd::PerfprofdRecord encodedProfile;
+ readEncodedProfile(dest_dir, false, encodedProfile);
+
+ VerifyBasicCannedProfile(encodedProfile);
+
+ auto find_symbol = [&](const std::string& filename) -> const quipper::SymbolInfo* {
+ const size_t size = encodedProfile.ExtensionSize(quipper::symbol_info);
+ for (size_t i = 0; i != size; ++i) {
+ auto& symbol_info = encodedProfile.GetExtension(quipper::symbol_info, i);
+ if (symbol_info.filename() == filename) {
+ return &symbol_info;
+ }
+ }
+ return nullptr;
+ };
+ auto all_filenames = [&]() {
+ std::ostringstream oss;
+ const size_t size = encodedProfile.ExtensionSize(quipper::symbol_info);
+ for (size_t i = 0; i != size; ++i) {
+ auto& symbol_info = encodedProfile.GetExtension(quipper::symbol_info, i);
+ oss << " " << symbol_info.filename();
+ }
+ return oss.str();
+ };
+
+ auto check_dsos = [&](const char* const* dsos, const size_t len) {
+ bool failed = false;
+ for (size_t i = 0; i != len; ++i) {
+ if (find_symbol(dsos[i]) == nullptr) {
+ failed = true;
+ ret.push_back(::testing::AssertionFailure() << "Did not find " << dsos[i]);
+ }
+ }
+ return failed;
+ };
+
+ bool failed = false;
+
+ constexpr const char* kDSOs[] = {
+ "/data/app/com.google.android.apps.plus-1/lib/arm/libcronet.so",
+ "/data/dalvik-cache/arm/system@framework@wifi-service.jar@classes.dex",
+ "/data/dalvik-cache/arm/data@app@com.google.android.gms-2@base.apk@classes.dex",
+ "/data/dalvik-cache/arm/system@framework@boot.oat",
+ };
+ failed |= check_dsos(kDSOs, arraysize(kDSOs));
+
+ if (symbolize_everything) {
+ constexpr const char* kDSOsWithBuildIDs[] = {
+ "/system/lib/libz.so", "/system/lib/libutils.so",
+ };
+ failed |= check_dsos(kDSOsWithBuildIDs, arraysize(kDSOsWithBuildIDs));
+ }
+
+ if (failed) {
+ ret.push_back(::testing::AssertionFailure() << "Found: " << all_filenames());
+ }
+
+ if (encodedProfile.ExtensionSize(quipper::symbol_info) != expected_count) {
+ ret.push_back(
+ ::testing::AssertionFailure() << "Expected " << expected_count
+ << " symbolized libraries, found "
+ << encodedProfile.ExtensionSize(quipper::symbol_info));
+ }
+
+ return ret;
+ }
+};
+
+TEST_F(BasicRunWithCannedPerfWithSymbolizer, Default) {
+ auto result = Run(false, 5);
+ for (const auto& result_component : result) {
+ EXPECT_TRUE(result_component);
+ }
+}
+
+TEST_F(BasicRunWithCannedPerfWithSymbolizer, Everything) {
+ auto result = Run(true, 26);
+ for (const auto& result_component : result) {
+ EXPECT_TRUE(result_component);
+ }
+}
+
+TEST_F(PerfProfdTest, CallchainRunWithCannedPerf)
+{
+ // This test makes sure that the perf.data converter
+ // can handle call chains.
+ //
+ std::string input_perf_data(test_dir);
+ input_perf_data += "/callchain.canned.perf.data";
+
+ // Set up config to avoid these annotations (they are tested elsewhere)
+ ConfigReader config_reader;
+ config_reader.overrideUnsignedEntry("collect_cpu_utilization", 0);
+ config_reader.overrideUnsignedEntry("collect_charging_state", 0);
+ config_reader.overrideUnsignedEntry("collect_camera_active", 0);
+
+ // Disable compression.
+ config_reader.overrideUnsignedEntry("compress", 0);
+
+ PerfProfdRunner::LoggingConfig config;
+ config_reader.FillConfig(&config);
+
+ // Kick off encoder and check return code
+ PROFILE_RESULT result =
+ encode_to_proto(input_perf_data, encoded_file_path(dest_dir, 0).c_str(), config, 0, nullptr);
+ ASSERT_EQ(OK_PROFILE_COLLECTION, result);
+
+ // Read and decode the resulting perf.data.encoded file
+ android::perfprofd::PerfprofdRecord encodedProfile;
+ readEncodedProfile(dest_dir, false, encodedProfile);
+
+ const quipper::PerfDataProto& perf_data = encodedProfile;
+
+ // Expect 21108 events.
+ EXPECT_EQ(2224, perf_data.events_size()) << CreateStats(perf_data);
+
+ {
+ SampleEventIterator samples(perf_data);
+ constexpr const char* kSampleEvents[] = {
+ "0: pid=6225 tid=6225 ip=18446743798834668032 callchain=->18446744073709551488->"
+ "18446743798834668032->18446743798834782596->18446743798834784624->"
+ "18446743798835055136->18446743798834788016->18446743798834789192->"
+ "18446743798834789512->18446743798834790216->18446743798833756776",
+ "1: pid=6225 tid=6225 ip=18446743798835685700 callchain=->18446744073709551488->"
+ "18446743798835685700->18446743798835688704->18446743798835650964->"
+ "18446743798834612104->18446743798834612276->18446743798835055528->"
+ "18446743798834788016->18446743798834789192->18446743798834789512->"
+ "18446743798834790216->18446743798833756776",
+ "2: pid=6225 tid=6225 ip=18446743798835055804 callchain=->18446744073709551488->"
+ "18446743798835055804->18446743798834788016->18446743798834789192->"
+ "18446743798834789512->18446743798834790216->18446743798833756776",
+ "3: pid=6225 tid=6225 ip=18446743798835991212 callchain=->18446744073709551488->"
+ "18446743798835991212->18446743798834491060->18446743798834675572->"
+ "18446743798834676516->18446743798834612172->18446743798834612276->"
+ "18446743798835056664->18446743798834788016->18446743798834789192->"
+ "18446743798834789512->18446743798834790216->18446743798833756776",
+ "4: pid=6225 tid=6225 ip=18446743798844881108 callchain=->18446744073709551488->"
+ "18446743798844881108->18446743798834836140->18446743798834846384->"
+ "18446743798834491100->18446743798834675572->18446743798834676516->"
+ "18446743798834612172->18446743798834612276->18446743798835056784->"
+ "18446743798834788016->18446743798834789192->18446743798834789512->"
+ "18446743798834790216->18446743798833756776",
+ };
+ size_t cmp_index = 0;
+ for (size_t index = 0; samples != samples.end(); ++samples, ++index) {
+ if (samples->sample_event().callchain_size() > 0) {
+ std::ostringstream oss;
+ oss << index << ": " << FormatSampleEvent(samples->sample_event());
+ EXPECT_STREQ(kSampleEvents[cmp_index], oss.str().c_str());
+ cmp_index++;
+ if (cmp_index == arraysize(kSampleEvents)) {
+ break;
+ }
+ }
+ }
+ }
+}
+
+#ifdef __ANDROID__
+
+TEST_F(PerfProfdTest, GetSupportedPerfCounters)
+{
+ if (!IsPerfSupported()) {
+ std::cerr << "Test not supported!" << std::endl;
+ return;
+ }
+ // Check basic perf counters.
+ {
+ struct DummyConfig : public Config {
+ void Sleep(size_t seconds) override {}
+ bool IsProfilingEnabled() const override { return false; }
+ };
+ DummyConfig config;
+ ASSERT_TRUE(android::perfprofd::FindSupportedPerfCounters(config.perf_path));
+ }
+ const std::unordered_set<std::string>& counters = android::perfprofd::GetSupportedPerfCounters();
+ EXPECT_TRUE(std::find(counters.begin(), counters.end(), std::string("cpu-cycles"))
+ != counters.end()) << android::base::Join(counters, ',');
+ EXPECT_TRUE(std::find(counters.begin(), counters.end(), std::string("page-faults"))
+ != counters.end()) << android::base::Join(counters, ',');
+}
+
+TEST_F(PerfProfdTest, BasicRunWithLivePerf)
+{
+ if (!IsPerfSupported()) {
+ std::cerr << "Test not supported!" << std::endl;
+ return;
+ }
+ //
+ // Basic test to exercise the main loop of the daemon. It includes
+ // a live 'perf' run
+ //
+ PerfProfdRunner runner(conf_dir);
+ runner.addToConfig("only_debug_build=0");
+ std::string ddparam("destination_directory="); ddparam += dest_dir;
+ runner.addToConfig(ddparam);
+ std::string cfparam("config_directory="); cfparam += conf_dir;
+ runner.addToConfig(cfparam);
+ runner.addToConfig("main_loop_iterations=1");
+ runner.addToConfig("use_fixed_seed=12345678");
+ runner.addToConfig("max_unprocessed_profiles=100");
+ runner.addToConfig("collection_interval=9999");
+ runner.addToConfig("sample_duration=2");
+ // Avoid the symbolizer for spurious messages.
+ runner.addToConfig("use_elf_symbolizer=0");
+
+ // Disable compression.
+ runner.addToConfig("compress=0");
+
+ // Create semaphore file
+ runner.create_semaphore_file();
+
+ // Kick off daemon
+ int daemon_main_return_code = runner.invoke();
+
+ // Check return code from daemon
+ ASSERT_EQ(0, daemon_main_return_code);
+
+ // Read and decode the resulting perf.data.encoded file
+ android::perfprofd::PerfprofdRecord encodedProfile;
+ readEncodedProfile(dest_dir, false, encodedProfile);
+
+ // Examine what we get back. Since it's a live profile, we can't
+ // really do much in terms of verifying the contents.
+ EXPECT_LT(0, encodedProfile.events_size());
+
+ // Verify log contents
+ const std::string expected = std::string(
+ "I: starting Android Wide Profiling daemon ") +
+ "I: config file path set to " + conf_dir + "/perfprofd.conf " +
+ RAW_RESULT(
+ I: random seed set to 12345678
+ I: sleep 674 seconds
+ I: initiating profile collection
+ I: sleep 2 seconds
+ I: profile collection complete
+ I: sleep 9325 seconds
+ I: finishing Android Wide Profiling daemon
+ );
+ // check to make sure log excerpt matches
+ EXPECT_TRUE(CompareLogMessages(expandVars(expected), true));
+}
+
+class PerfProfdLiveEventsTest : public PerfProfdTest {
+ protected:
+ ::testing::AssertionResult SetupAndInvoke(
+ const std::string& event_config,
+ const std::vector<std::string>& extra_config,
+ bool expect_success,
+ std::string expected_log,
+ bool log_match_exact) {
+ //
+ // Basic test to check that the event set functionality works.
+ //
+ // Note: this is brittle, as we do not really know which events the hardware
+ // supports. Use "cpu-cycles" and "page-faults" as something likely.
+ //
+ PerfProfdRunner runner(conf_dir);
+ runner.addToConfig("only_debug_build=0");
+ std::string ddparam("destination_directory="); ddparam += dest_dir;
+ runner.addToConfig(ddparam);
+ std::string cfparam("config_directory="); cfparam += conf_dir;
+ runner.addToConfig(cfparam);
+ runner.addToConfig("main_loop_iterations=1");
+ runner.addToConfig("use_fixed_seed=12345678");
+ runner.addToConfig("max_unprocessed_profiles=100");
+ runner.addToConfig("collection_interval=9999");
+ runner.addToConfig("sample_duration=2");
+ // Avoid the symbolizer for spurious messages.
+ runner.addToConfig("use_elf_symbolizer=0");
+
+ // Disable compression.
+ runner.addToConfig("compress=0");
+
+ // Set event set.
+ runner.addToConfig(event_config);
+
+ for (const std::string& str : extra_config) {
+ runner.addToConfig(str);
+ }
+
+ // Create semaphore file
+ runner.create_semaphore_file();
+
+ // Kick off daemon
+ int daemon_main_return_code = runner.invoke();
+
+ // Check return code from daemon
+ if (0 != daemon_main_return_code) {
+ return ::testing::AssertionFailure() << "Daemon exited with " << daemon_main_return_code;
+ }
+
+ if (expect_success) {
+ // Read and decode the resulting perf.data.encoded file
+ android::perfprofd::PerfprofdRecord encodedProfile;
+ readEncodedProfile(dest_dir, false, encodedProfile);
+
+ // Examine what we get back. Since it's a live profile, we can't
+ // really do much in terms of verifying the contents.
+ if (0 == encodedProfile.events_size()) {
+ return ::testing::AssertionFailure() << "Empty encoded profile.";
+ }
+ }
+
+ // Verify log contents
+ return CompareLogMessages(expandVars(expected_log), log_match_exact);
+ }
+};
+
+TEST_F(PerfProfdLiveEventsTest, BasicRunWithLivePerf_Events)
+{
+ if (!IsPerfSupported()) {
+ std::cerr << "Test not supported!" << std::endl;
+ return;
+ }
+ const std::string expected = std::string(
+ "I: starting Android Wide Profiling daemon ") +
+ "I: config file path set to " + conf_dir + "/perfprofd.conf " +
+ RAW_RESULT(
+ I: random seed set to 12345678
+ I: sleep 674 seconds
+ I: initiating profile collection
+ I: sleep 2 seconds
+ I: profile collection complete
+ I: sleep 9325 seconds
+ I: finishing Android Wide Profiling daemon
+ );
+ ASSERT_TRUE(SetupAndInvoke("-e_cpu-cycles,page-faults=100000", {}, true, expected, true));
+}
+
+TEST_F(PerfProfdLiveEventsTest, BasicRunWithLivePerf_Events_Strip)
+{
+ if (!IsPerfSupported()) {
+ std::cerr << "Test not supported!" << std::endl;
+ return;
+ }
+ const std::string expected = std::string(
+ "I: starting Android Wide Profiling daemon ") +
+ "I: config file path set to " + conf_dir + "/perfprofd.conf " +
+ RAW_RESULT(
+ I: random seed set to 12345678
+ I: sleep 674 seconds
+ I: initiating profile collection
+ W: Event does:not:exist is unsupported.
+ I: sleep 2 seconds
+ I: profile collection complete
+ I: sleep 9325 seconds
+ I: finishing Android Wide Profiling daemon
+ );
+ ASSERT_TRUE(SetupAndInvoke("-e_cpu-cycles,page-faults,does:not:exist=100000",
+ { "fail_on_unsupported_events=0" },
+ true,
+ expected,
+ true));
+}
+
+TEST_F(PerfProfdLiveEventsTest, BasicRunWithLivePerf_Events_NoStrip)
+{
+ if (!IsPerfSupported()) {
+ std::cerr << "Test not supported!" << std::endl;
+ return;
+ }
+ const std::string expected =
+ RAW_RESULT(
+ W: Event does:not:exist is unsupported.
+ W: profile collection failed
+ );
+ ASSERT_TRUE(SetupAndInvoke("-e_cpu-cycles,page-faults,does:not:exist=100000",
+ { "fail_on_unsupported_events=1" },
+ false,
+ expected,
+ false));
+}
+
+TEST_F(PerfProfdLiveEventsTest, BasicRunWithLivePerf_EventsGroup)
+{
+ if (!IsPerfSupported()) {
+ std::cerr << "Test not supported!" << std::endl;
+ return;
+ }
+ const std::string expected = std::string(
+ "I: starting Android Wide Profiling daemon ") +
+ "I: config file path set to " + conf_dir + "/perfprofd.conf " +
+ RAW_RESULT(
+ I: random seed set to 12345678
+ I: sleep 674 seconds
+ I: initiating profile collection
+ I: sleep 2 seconds
+ I: profile collection complete
+ I: sleep 9325 seconds
+ I: finishing Android Wide Profiling daemon
+ );
+ ASSERT_TRUE(SetupAndInvoke("-g_cpu-cycles,page-faults=100000", {}, true, expected, true));
+}
+
+TEST_F(PerfProfdTest, MultipleRunWithLivePerf)
+{
+ if (!IsPerfSupported()) {
+ std::cerr << "Test not supported!" << std::endl;
+ return;
+ }
+ //
+ // Basic test to exercise the main loop of the daemon. It includes
+ // a live 'perf' run
+ //
+ PerfProfdRunner runner(conf_dir);
+ runner.addToConfig("only_debug_build=0");
+ std::string ddparam("destination_directory="); ddparam += dest_dir;
+ runner.addToConfig(ddparam);
+ std::string cfparam("config_directory="); cfparam += conf_dir;
+ runner.addToConfig(cfparam);
+ runner.addToConfig("main_loop_iterations=3");
+ runner.addToConfig("use_fixed_seed=12345678");
+ runner.addToConfig("collection_interval=9999");
+ runner.addToConfig("sample_duration=2");
+ // Avoid the symbolizer for spurious messages.
+ runner.addToConfig("use_elf_symbolizer=0");
+
+ // Disable compression.
+ runner.addToConfig("compress=0");
+
+ runner.write_processed_file(1, 2);
+
+ // Create semaphore file
+ runner.create_semaphore_file();
+
+ // Kick off daemon
+ int daemon_main_return_code = runner.invoke();
+
+ // Check return code from daemon
+ ASSERT_EQ(0, daemon_main_return_code);
+
+ // Read and decode the resulting perf.data.encoded file
+ android::perfprofd::PerfprofdRecord encodedProfile;
+ readEncodedProfile(dest_dir, false, encodedProfile);
+
+ // Examine what we get back. Since it's a live profile, we can't
+ // really do much in terms of verifying the contents.
+ EXPECT_LT(0, encodedProfile.events_size());
+
+ // Examine that encoded.1 file is removed while encoded.{0|2} exists.
+ EXPECT_EQ(0, access(encoded_file_path(dest_dir, 0).c_str(), F_OK));
+ EXPECT_NE(0, access(encoded_file_path(dest_dir, 1).c_str(), F_OK));
+ EXPECT_EQ(0, access(encoded_file_path(dest_dir, 2).c_str(), F_OK));
+
+ // Verify log contents
+ const std::string expected = std::string(
+ "I: starting Android Wide Profiling daemon ") +
+ "I: config file path set to " + conf_dir + "/perfprofd.conf " +
+ RAW_RESULT(
+ I: random seed set to 12345678
+ I: sleep 674 seconds
+ I: initiating profile collection
+ I: sleep 2 seconds
+ I: profile collection complete
+ I: sleep 9325 seconds
+ I: sleep 4974 seconds
+ I: initiating profile collection
+ I: sleep 2 seconds
+ I: profile collection complete
+ I: sleep 5025 seconds
+ I: sleep 501 seconds
+ I: initiating profile collection
+ I: sleep 2 seconds
+ I: profile collection complete
+ I: sleep 9498 seconds
+ I: finishing Android Wide Profiling daemon
+ );
+ // check to make sure log excerpt matches
+ EXPECT_TRUE(CompareLogMessages(expandVars(expected), true));
+}
+
+TEST_F(PerfProfdTest, CallChainRunWithLivePerf)
+{
+ if (!IsPerfSupported()) {
+ std::cerr << "Test not supported!" << std::endl;
+ return;
+ }
+ //
+ // Collect a callchain profile, so as to exercise the code in
+ // perf_data post-processing that digests callchains.
+ //
+ PerfProfdRunner runner(conf_dir);
+ std::string ddparam("destination_directory="); ddparam += dest_dir;
+ runner.addToConfig(ddparam);
+ std::string cfparam("config_directory="); cfparam += conf_dir;
+ runner.addToConfig(cfparam);
+ runner.addToConfig("main_loop_iterations=1");
+ runner.addToConfig("use_fixed_seed=12345678");
+ runner.addToConfig("max_unprocessed_profiles=100");
+ runner.addToConfig("collection_interval=9999");
+ runner.addToConfig("stack_profile=1");
+ runner.addToConfig("sample_duration=2");
+ // Avoid the symbolizer for spurious messages.
+ runner.addToConfig("use_elf_symbolizer=0");
+
+ // Disable compression.
+ runner.addToConfig("compress=0");
+
+ // Create semaphore file
+ runner.create_semaphore_file();
+
+ // Kick off daemon
+ int daemon_main_return_code = runner.invoke();
+
+ // Check return code from daemon
+ ASSERT_EQ(0, daemon_main_return_code);
+
+ // Read and decode the resulting perf.data.encoded file
+ android::perfprofd::PerfprofdRecord encodedProfile;
+ readEncodedProfile(dest_dir, false, encodedProfile);
+
+ // Examine what we get back. Since it's a live profile, we can't
+ // really do much in terms of verifying the contents.
+ EXPECT_LT(0, encodedProfile.events_size());
+
+ // Verify log contents
+ const std::string expected = std::string(
+ "I: starting Android Wide Profiling daemon ") +
+ "I: config file path set to " + conf_dir + "/perfprofd.conf " +
+ RAW_RESULT(
+ I: random seed set to 12345678
+ I: sleep 674 seconds
+ I: initiating profile collection
+ I: sleep 2 seconds
+ I: profile collection complete
+ I: sleep 9325 seconds
+ I: finishing Android Wide Profiling daemon
+ );
+ // check to make sure log excerpt matches
+ EXPECT_TRUE(CompareLogMessages(expandVars(expected), true));
+
+ // Check that we have at least one SampleEvent with a callchain.
+ SampleEventIterator samples(encodedProfile);
+ bool found_callchain = false;
+ while (!found_callchain && samples != samples.end()) {
+ found_callchain = samples->sample_event().callchain_size() > 0;
+ }
+ EXPECT_TRUE(found_callchain) << CreateStats(encodedProfile);
+}
+
+#endif
+
+class RangeMapTest : public testing::Test {
+};
+
+TEST_F(RangeMapTest, TestRangeMap) {
+ using namespace android::perfprofd;
+
+ RangeMap<std::string, uint64_t> map;
+ auto print = [&]() {
+ std::ostringstream oss;
+ for (auto& aggr_sym : map) {
+ oss << aggr_sym.first << "#" << aggr_sym.second.symbol;
+ oss << "[";
+ for (auto& x : aggr_sym.second.offsets) {
+ oss << x << ",";
+ }
+ oss << "]";
+ }
+ return oss.str();
+ };
+
+ EXPECT_STREQ("", print().c_str());
+
+ map.Insert("a", 10);
+ EXPECT_STREQ("10#a[10,]", print().c_str());
+ map.Insert("a", 100);
+ EXPECT_STREQ("10#a[10,100,]", print().c_str());
+ map.Insert("a", 1);
+ EXPECT_STREQ("1#a[1,10,100,]", print().c_str());
+ map.Insert("a", 1);
+ EXPECT_STREQ("1#a[1,10,100,]", print().c_str());
+ map.Insert("a", 2);
+ EXPECT_STREQ("1#a[1,2,10,100,]", print().c_str());
+
+ map.Insert("b", 200);
+ EXPECT_STREQ("1#a[1,2,10,100,]200#b[200,]", print().c_str());
+ map.Insert("b", 199);
+ EXPECT_STREQ("1#a[1,2,10,100,]199#b[199,200,]", print().c_str());
+
+ map.Insert("c", 50);
+ EXPECT_STREQ("1#a[1,2,10,]50#c[50,]100#a[100,]199#b[199,200,]", print().c_str());
+}
+
+class ThreadedHandlerTest : public PerfProfdTest {
+ public:
+ void SetUp() override {
+ PerfProfdTest::SetUp();
+ threaded_handler_.reset(new android::perfprofd::ThreadedHandler());
+ }
+
+ void TearDown() override {
+ threaded_handler_.reset();
+ PerfProfdTest::TearDown();
+ }
+
+ protected:
+ std::unique_ptr<android::perfprofd::ThreadedHandler> threaded_handler_;
+};
+
+TEST_F(ThreadedHandlerTest, Basic) {
+ std::string error_msg;
+ EXPECT_FALSE(threaded_handler_->StopProfiling(&error_msg));
+}
+
+#ifdef __ANDROID__
+#define ThreadedHandlerTestName(x) x
+#else
+#define ThreadedHandlerTestName(x) DISABLED_ ## x
+#endif
+
+TEST_F(ThreadedHandlerTest, ThreadedHandlerTestName(Live)) {
+ auto config_fn = [](android::perfprofd::ThreadedConfig& config) {
+ // Use some values that make it likely that things don't fail quickly.
+ config.main_loop_iterations = 0;
+ config.collection_interval_in_s = 1000000;
+ };
+ std::string error_msg;
+ ASSERT_TRUE(threaded_handler_->StartProfiling(config_fn, &error_msg)) << error_msg;
+ EXPECT_TRUE(threaded_handler_->StopProfiling(&error_msg)) << error_msg;
+}
+
+int main(int argc, char **argv) {
+ // Always log to cerr, so that device failures are visible.
+ android::base::SetLogger(android::base::StderrLogger);
+
+ CHECK(android::base::Realpath(argv[0], &gExecutableRealpath));
+
+ // switch to / before starting testing (perfprofd
+ // should be location-independent)
+ chdir("/");
+ testing::InitGoogleTest(&argc, argv);
+ return RUN_ALL_TESTS();
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-23 19:12:55 +0000