| /* |
| * 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 "metrics_collector.h" |
| |
| #include <sysexits.h> |
| #include <time.h> |
| |
| #include <base/bind.h> |
| #include <base/files/file_path.h> |
| #include <base/files/file_util.h> |
| #include <base/hash.h> |
| #include <base/logging.h> |
| #include <base/strings/string_number_conversions.h> |
| #include <base/strings/string_split.h> |
| #include <base/strings/string_util.h> |
| #include <base/strings/stringprintf.h> |
| #include <brillo/osrelease_reader.h> |
| #include <dbus/dbus.h> |
| #include <dbus/message.h> |
| |
| #include "constants.h" |
| #include "metrics_collector_service_trampoline.h" |
| |
| using base::FilePath; |
| using base::StringPrintf; |
| using base::Time; |
| using base::TimeDelta; |
| using base::TimeTicks; |
| using chromeos_metrics::PersistentInteger; |
| using std::map; |
| using std::string; |
| using std::vector; |
| |
| namespace { |
| |
| const int kSecondsPerMinute = 60; |
| const int kMinutesPerHour = 60; |
| const int kHoursPerDay = 24; |
| const int kMinutesPerDay = kHoursPerDay * kMinutesPerHour; |
| const int kSecondsPerDay = kSecondsPerMinute * kMinutesPerDay; |
| const int kDaysPerWeek = 7; |
| const int kSecondsPerWeek = kSecondsPerDay * kDaysPerWeek; |
| |
| // Interval between calls to UpdateStats(). |
| const uint32_t kUpdateStatsIntervalMs = 300000; |
| |
| const char kKernelCrashDetectedFile[] = "/var/run/kernel-crash-detected"; |
| const char kUncleanShutdownDetectedFile[] = |
| "/var/run/unclean-shutdown-detected"; |
| |
| const int kMetricMeminfoInterval = 30; // seconds |
| |
| const char kMeminfoFileName[] = "/proc/meminfo"; |
| const char kVmStatFileName[] = "/proc/vmstat"; |
| |
| const char kWeaveComponent[] = "metrics"; |
| |
| } // namespace |
| |
| // Zram sysfs entries. |
| |
| const char MetricsCollector::kComprDataSizeName[] = "compr_data_size"; |
| const char MetricsCollector::kOrigDataSizeName[] = "orig_data_size"; |
| const char MetricsCollector::kZeroPagesName[] = "zero_pages"; |
| |
| // Memory use stats collection intervals. We collect some memory use interval |
| // at these intervals after boot, and we stop collecting after the last one, |
| // with the assumption that in most cases the memory use won't change much |
| // after that. |
| static const int kMemuseIntervals[] = { |
| 1 * kSecondsPerMinute, // 1 minute mark |
| 4 * kSecondsPerMinute, // 5 minute mark |
| 25 * kSecondsPerMinute, // 0.5 hour mark |
| 120 * kSecondsPerMinute, // 2.5 hour mark |
| 600 * kSecondsPerMinute, // 12.5 hour mark |
| }; |
| |
| MetricsCollector::MetricsCollector() |
| : memuse_final_time_(0), |
| memuse_interval_index_(0) {} |
| |
| MetricsCollector::~MetricsCollector() { |
| } |
| |
| // static |
| double MetricsCollector::GetActiveTime() { |
| struct timespec ts; |
| int r = clock_gettime(CLOCK_MONOTONIC, &ts); |
| if (r < 0) { |
| PLOG(WARNING) << "clock_gettime(CLOCK_MONOTONIC) failed"; |
| return 0; |
| } else { |
| return ts.tv_sec + static_cast<double>(ts.tv_nsec) / (1000 * 1000 * 1000); |
| } |
| } |
| |
| int MetricsCollector::Run() { |
| if (CheckSystemCrash(kKernelCrashDetectedFile)) { |
| ProcessKernelCrash(); |
| } |
| |
| if (CheckSystemCrash(kUncleanShutdownDetectedFile)) { |
| ProcessUncleanShutdown(); |
| } |
| |
| // On OS version change, clear version stats (which are reported daily). |
| int32_t version = GetOsVersionHash(); |
| if (version_cycle_->Get() != version) { |
| version_cycle_->Set(version); |
| kernel_crashes_version_count_->Set(0); |
| version_cumulative_active_use_->Set(0); |
| version_cumulative_cpu_use_->Set(0); |
| } |
| |
| // Start metricscollectorservice via trampoline |
| MetricsCollectorServiceTrampoline metricscollectorservice_trampoline(this); |
| metricscollectorservice_trampoline.Run(); |
| |
| return brillo::DBusDaemon::Run(); |
| } |
| |
| uint32_t MetricsCollector::GetOsVersionHash() { |
| brillo::OsReleaseReader reader; |
| reader.Load(); |
| string version; |
| if (!reader.GetString(metrics::kProductVersion, &version)) { |
| LOG(ERROR) << "failed to read the product version."; |
| version = metrics::kDefaultVersion; |
| } |
| |
| uint32_t version_hash = base::Hash(version); |
| if (testing_) { |
| version_hash = 42; // return any plausible value for the hash |
| } |
| return version_hash; |
| } |
| |
| void MetricsCollector::Init(bool testing, MetricsLibraryInterface* metrics_lib, |
| const string& diskstats_path, |
| const base::FilePath& private_metrics_directory, |
| const base::FilePath& shared_metrics_directory) { |
| CHECK(metrics_lib); |
| testing_ = testing; |
| shared_metrics_directory_ = shared_metrics_directory; |
| metrics_lib_ = metrics_lib; |
| |
| daily_active_use_.reset(new PersistentInteger("Platform.UseTime.PerDay", |
| private_metrics_directory)); |
| version_cumulative_active_use_.reset(new PersistentInteger( |
| "Platform.CumulativeUseTime", private_metrics_directory)); |
| version_cumulative_cpu_use_.reset(new PersistentInteger( |
| "Platform.CumulativeCpuTime", private_metrics_directory)); |
| |
| kernel_crash_interval_.reset(new PersistentInteger( |
| "Platform.KernelCrashInterval", private_metrics_directory)); |
| unclean_shutdown_interval_.reset(new PersistentInteger( |
| "Platform.UncleanShutdownInterval", private_metrics_directory)); |
| user_crash_interval_.reset(new PersistentInteger("Platform.UserCrashInterval", |
| private_metrics_directory)); |
| |
| any_crashes_daily_count_.reset(new PersistentInteger( |
| "Platform.AnyCrashes.PerDay", private_metrics_directory)); |
| any_crashes_weekly_count_.reset(new PersistentInteger( |
| "Platform.AnyCrashes.PerWeek", private_metrics_directory)); |
| user_crashes_daily_count_.reset(new PersistentInteger( |
| "Platform.UserCrashes.PerDay", private_metrics_directory)); |
| user_crashes_weekly_count_.reset(new PersistentInteger( |
| "Platform.UserCrashes.PerWeek", private_metrics_directory)); |
| kernel_crashes_daily_count_.reset(new PersistentInteger( |
| "Platform.KernelCrashes.PerDay", private_metrics_directory)); |
| kernel_crashes_weekly_count_.reset(new PersistentInteger( |
| "Platform.KernelCrashes.PerWeek", private_metrics_directory)); |
| kernel_crashes_version_count_.reset(new PersistentInteger( |
| "Platform.KernelCrashesSinceUpdate", private_metrics_directory)); |
| unclean_shutdowns_daily_count_.reset(new PersistentInteger( |
| "Platform.UncleanShutdown.PerDay", private_metrics_directory)); |
| unclean_shutdowns_weekly_count_.reset(new PersistentInteger( |
| "Platform.UncleanShutdowns.PerWeek", private_metrics_directory)); |
| |
| daily_cycle_.reset( |
| new PersistentInteger("daily.cycle", private_metrics_directory)); |
| weekly_cycle_.reset( |
| new PersistentInteger("weekly.cycle", private_metrics_directory)); |
| version_cycle_.reset( |
| new PersistentInteger("version.cycle", private_metrics_directory)); |
| |
| disk_usage_collector_.reset(new DiskUsageCollector(metrics_lib_)); |
| averaged_stats_collector_.reset( |
| new AveragedStatisticsCollector(metrics_lib_, diskstats_path, |
| kVmStatFileName)); |
| cpu_usage_collector_.reset(new CpuUsageCollector(metrics_lib_)); |
| } |
| |
| int MetricsCollector::OnInit() { |
| int return_code = brillo::DBusDaemon::OnInit(); |
| if (return_code != EX_OK) |
| return return_code; |
| |
| StatsReporterInit(); |
| |
| // Start collecting meminfo stats. |
| ScheduleMeminfoCallback(kMetricMeminfoInterval); |
| memuse_final_time_ = GetActiveTime() + kMemuseIntervals[0]; |
| ScheduleMemuseCallback(kMemuseIntervals[0]); |
| |
| if (testing_) |
| return EX_OK; |
| |
| bus_->AssertOnDBusThread(); |
| CHECK(bus_->SetUpAsyncOperations()); |
| |
| device_ = weaved::Device::CreateInstance( |
| bus_, |
| base::Bind(&MetricsCollector::UpdateWeaveState, base::Unretained(this))); |
| device_->AddComponent(kWeaveComponent, {"_metrics"}); |
| device_->AddCommandHandler( |
| kWeaveComponent, |
| "_metrics._enableAnalyticsReporting", |
| base::Bind(&MetricsCollector::OnEnableMetrics, base::Unretained(this))); |
| device_->AddCommandHandler( |
| kWeaveComponent, |
| "_metrics._disableAnalyticsReporting", |
| base::Bind(&MetricsCollector::OnDisableMetrics, base::Unretained(this))); |
| |
| latest_cpu_use_microseconds_ = cpu_usage_collector_->GetCumulativeCpuUse(); |
| base::MessageLoop::current()->PostDelayedTask(FROM_HERE, |
| base::Bind(&MetricsCollector::HandleUpdateStatsTimeout, |
| base::Unretained(this)), |
| base::TimeDelta::FromMilliseconds(kUpdateStatsIntervalMs)); |
| |
| return EX_OK; |
| } |
| |
| void MetricsCollector::OnShutdown(int* return_code) { |
| brillo::DBusDaemon::OnShutdown(return_code); |
| } |
| |
| void MetricsCollector::OnEnableMetrics( |
| const std::weak_ptr<weaved::Command>& cmd) { |
| auto command = cmd.lock(); |
| if (!command) |
| return; |
| |
| if (base::WriteFile( |
| shared_metrics_directory_.Append(metrics::kConsentFileName), "", 0) != |
| 0) { |
| PLOG(ERROR) << "Could not create the consent file."; |
| command->Abort("metrics_error", "Could not create the consent file", |
| nullptr); |
| return; |
| } |
| |
| UpdateWeaveState(); |
| command->Complete({}, nullptr); |
| } |
| |
| void MetricsCollector::OnDisableMetrics( |
| const std::weak_ptr<weaved::Command>& cmd) { |
| auto command = cmd.lock(); |
| if (!command) |
| return; |
| |
| if (!base::DeleteFile( |
| shared_metrics_directory_.Append(metrics::kConsentFileName), false)) { |
| PLOG(ERROR) << "Could not delete the consent file."; |
| command->Abort("metrics_error", "Could not delete the consent file", |
| nullptr); |
| return; |
| } |
| |
| UpdateWeaveState(); |
| command->Complete({}, nullptr); |
| } |
| |
| void MetricsCollector::UpdateWeaveState() { |
| if (!device_) |
| return; |
| |
| std::string enabled = |
| metrics_lib_->AreMetricsEnabled() ? "enabled" : "disabled"; |
| |
| if (!device_->SetStateProperty(kWeaveComponent, |
| "_metrics._AnalyticsReportingState", |
| enabled, |
| nullptr)) { |
| LOG(ERROR) << "failed to update weave's state"; |
| } |
| } |
| |
| void MetricsCollector::ProcessUserCrash() { |
| // Counts the active time up to now. |
| UpdateStats(TimeTicks::Now(), Time::Now()); |
| |
| // Reports the active use time since the last crash and resets it. |
| SendAndResetCrashIntervalSample(user_crash_interval_); |
| |
| any_crashes_daily_count_->Add(1); |
| any_crashes_weekly_count_->Add(1); |
| user_crashes_daily_count_->Add(1); |
| user_crashes_weekly_count_->Add(1); |
| } |
| |
| void MetricsCollector::ProcessKernelCrash() { |
| // Counts the active time up to now. |
| UpdateStats(TimeTicks::Now(), Time::Now()); |
| |
| // Reports the active use time since the last crash and resets it. |
| SendAndResetCrashIntervalSample(kernel_crash_interval_); |
| |
| any_crashes_daily_count_->Add(1); |
| any_crashes_weekly_count_->Add(1); |
| kernel_crashes_daily_count_->Add(1); |
| kernel_crashes_weekly_count_->Add(1); |
| |
| kernel_crashes_version_count_->Add(1); |
| } |
| |
| void MetricsCollector::ProcessUncleanShutdown() { |
| // Counts the active time up to now. |
| UpdateStats(TimeTicks::Now(), Time::Now()); |
| |
| // Reports the active use time since the last crash and resets it. |
| SendAndResetCrashIntervalSample(unclean_shutdown_interval_); |
| |
| unclean_shutdowns_daily_count_->Add(1); |
| unclean_shutdowns_weekly_count_->Add(1); |
| any_crashes_daily_count_->Add(1); |
| any_crashes_weekly_count_->Add(1); |
| } |
| |
| bool MetricsCollector::CheckSystemCrash(const string& crash_file) { |
| FilePath crash_detected(crash_file); |
| if (!base::PathExists(crash_detected)) |
| return false; |
| |
| // Deletes the crash-detected file so that the daemon doesn't report |
| // another kernel crash in case it's restarted. |
| base::DeleteFile(crash_detected, false); // not recursive |
| return true; |
| } |
| |
| void MetricsCollector::StatsReporterInit() { |
| disk_usage_collector_->Schedule(); |
| |
| cpu_usage_collector_->Init(); |
| cpu_usage_collector_->Schedule(); |
| |
| // Don't start a collection cycle during the first run to avoid delaying the |
| // boot. |
| averaged_stats_collector_->ScheduleWait(); |
| } |
| |
| void MetricsCollector::ScheduleMeminfoCallback(int wait) { |
| if (testing_) { |
| return; |
| } |
| base::TimeDelta waitDelta = base::TimeDelta::FromSeconds(wait); |
| base::MessageLoop::current()->PostDelayedTask(FROM_HERE, |
| base::Bind(&MetricsCollector::MeminfoCallback, base::Unretained(this), |
| waitDelta), |
| waitDelta); |
| } |
| |
| void MetricsCollector::MeminfoCallback(base::TimeDelta wait) { |
| string meminfo_raw; |
| const FilePath meminfo_path(kMeminfoFileName); |
| if (!base::ReadFileToString(meminfo_path, &meminfo_raw)) { |
| LOG(WARNING) << "cannot read " << meminfo_path.value().c_str(); |
| return; |
| } |
| // Make both calls even if the first one fails. |
| if (ProcessMeminfo(meminfo_raw)) { |
| base::MessageLoop::current()->PostDelayedTask(FROM_HERE, |
| base::Bind(&MetricsCollector::MeminfoCallback, base::Unretained(this), |
| wait), |
| wait); |
| } |
| } |
| |
| // static |
| bool MetricsCollector::ReadFileToUint64(const base::FilePath& path, |
| uint64_t* value) { |
| std::string content; |
| if (!base::ReadFileToString(path, &content)) { |
| PLOG(WARNING) << "cannot read " << path.MaybeAsASCII(); |
| return false; |
| } |
| // Remove final newline. |
| base::TrimWhitespaceASCII(content, base::TRIM_TRAILING, &content); |
| if (!base::StringToUint64(content, value)) { |
| LOG(WARNING) << "invalid integer: " << content; |
| return false; |
| } |
| return true; |
| } |
| |
| bool MetricsCollector::ReportZram(const base::FilePath& zram_dir) { |
| // Data sizes are in bytes. |zero_pages| is in number of pages. |
| uint64_t compr_data_size, orig_data_size, zero_pages; |
| const size_t page_size = 4096; |
| |
| if (!ReadFileToUint64(zram_dir.Append(kComprDataSizeName), |
| &compr_data_size) || |
| !ReadFileToUint64(zram_dir.Append(kOrigDataSizeName), &orig_data_size) || |
| !ReadFileToUint64(zram_dir.Append(kZeroPagesName), &zero_pages)) { |
| return false; |
| } |
| |
| // |orig_data_size| does not include zero-filled pages. |
| orig_data_size += zero_pages * page_size; |
| |
| const int compr_data_size_mb = compr_data_size >> 20; |
| const int savings_mb = (orig_data_size - compr_data_size) >> 20; |
| const int zero_ratio_percent = zero_pages * page_size * 100 / orig_data_size; |
| |
| // Report compressed size in megabytes. 100 MB or less has little impact. |
| SendSample("Platform.ZramCompressedSize", compr_data_size_mb, 100, 4000, 50); |
| SendSample("Platform.ZramSavings", savings_mb, 100, 4000, 50); |
| // The compression ratio is multiplied by 100 for better resolution. The |
| // ratios of interest are between 1 and 6 (100% and 600% as reported). We |
| // don't want samples when very little memory is being compressed. |
| if (compr_data_size_mb >= 1) { |
| SendSample("Platform.ZramCompressionRatioPercent", |
| orig_data_size * 100 / compr_data_size, 100, 600, 50); |
| } |
| // The values of interest for zero_pages are between 1MB and 1GB. The units |
| // are number of pages. |
| SendSample("Platform.ZramZeroPages", zero_pages, 256, 256 * 1024, 50); |
| SendSample("Platform.ZramZeroRatioPercent", zero_ratio_percent, 1, 50, 50); |
| |
| return true; |
| } |
| |
| bool MetricsCollector::ProcessMeminfo(const string& meminfo_raw) { |
| static const MeminfoRecord fields_array[] = { |
| { "MemTotal", "MemTotal" }, // SPECIAL CASE: total system memory |
| { "MemFree", "MemFree" }, |
| { "Buffers", "Buffers" }, |
| { "Cached", "Cached" }, |
| // { "SwapCached", "SwapCached" }, |
| { "Active", "Active" }, |
| { "Inactive", "Inactive" }, |
| { "ActiveAnon", "Active(anon)" }, |
| { "InactiveAnon", "Inactive(anon)" }, |
| { "ActiveFile" , "Active(file)" }, |
| { "InactiveFile", "Inactive(file)" }, |
| { "Unevictable", "Unevictable", kMeminfoOp_HistLog }, |
| // { "Mlocked", "Mlocked" }, |
| { "SwapTotal", "SwapTotal", kMeminfoOp_SwapTotal }, |
| { "SwapFree", "SwapFree", kMeminfoOp_SwapFree }, |
| // { "Dirty", "Dirty" }, |
| // { "Writeback", "Writeback" }, |
| { "AnonPages", "AnonPages" }, |
| { "Mapped", "Mapped" }, |
| { "Shmem", "Shmem", kMeminfoOp_HistLog }, |
| { "Slab", "Slab", kMeminfoOp_HistLog }, |
| // { "SReclaimable", "SReclaimable" }, |
| // { "SUnreclaim", "SUnreclaim" }, |
| }; |
| vector<MeminfoRecord> fields(fields_array, |
| fields_array + arraysize(fields_array)); |
| if (!FillMeminfo(meminfo_raw, &fields)) { |
| return false; |
| } |
| int total_memory = fields[0].value; |
| if (total_memory == 0) { |
| // this "cannot happen" |
| LOG(WARNING) << "borked meminfo parser"; |
| return false; |
| } |
| int swap_total = 0; |
| int swap_free = 0; |
| // Send all fields retrieved, except total memory. |
| for (unsigned int i = 1; i < fields.size(); i++) { |
| string metrics_name = base::StringPrintf("Platform.Meminfo%s", |
| fields[i].name); |
| int percent; |
| switch (fields[i].op) { |
| case kMeminfoOp_HistPercent: |
| // report value as percent of total memory |
| percent = fields[i].value * 100 / total_memory; |
| SendLinearSample(metrics_name, percent, 100, 101); |
| break; |
| case kMeminfoOp_HistLog: |
| // report value in kbytes, log scale, 4Gb max |
| SendSample(metrics_name, fields[i].value, 1, 4 * 1000 * 1000, 100); |
| break; |
| case kMeminfoOp_SwapTotal: |
| swap_total = fields[i].value; |
| case kMeminfoOp_SwapFree: |
| swap_free = fields[i].value; |
| break; |
| } |
| } |
| if (swap_total > 0) { |
| int swap_used = swap_total - swap_free; |
| int swap_used_percent = swap_used * 100 / swap_total; |
| SendSample("Platform.MeminfoSwapUsed", swap_used, 1, 8 * 1000 * 1000, 100); |
| SendLinearSample("Platform.MeminfoSwapUsed.Percent", swap_used_percent, |
| 100, 101); |
| } |
| return true; |
| } |
| |
| bool MetricsCollector::FillMeminfo(const string& meminfo_raw, |
| vector<MeminfoRecord>* fields) { |
| vector<string> lines; |
| unsigned int nlines = Tokenize(meminfo_raw, "\n", &lines); |
| |
| // Scan meminfo output and collect field values. Each field name has to |
| // match a meminfo entry (case insensitive) after removing non-alpha |
| // characters from the entry. |
| unsigned int ifield = 0; |
| for (unsigned int iline = 0; |
| iline < nlines && ifield < fields->size(); |
| iline++) { |
| vector<string> tokens; |
| Tokenize(lines[iline], ": ", &tokens); |
| if (strcmp((*fields)[ifield].match, tokens[0].c_str()) == 0) { |
| // Name matches. Parse value and save. |
| if (!base::StringToInt(tokens[1], &(*fields)[ifield].value)) { |
| LOG(WARNING) << "Cound not convert " << tokens[1] << " to int"; |
| return false; |
| } |
| ifield++; |
| } |
| } |
| if (ifield < fields->size()) { |
| // End of input reached while scanning. |
| LOG(WARNING) << "cannot find field " << (*fields)[ifield].match |
| << " and following"; |
| return false; |
| } |
| return true; |
| } |
| |
| void MetricsCollector::ScheduleMemuseCallback(double interval) { |
| if (testing_) { |
| return; |
| } |
| base::MessageLoop::current()->PostDelayedTask(FROM_HERE, |
| base::Bind(&MetricsCollector::MemuseCallback, base::Unretained(this)), |
| base::TimeDelta::FromSeconds(interval)); |
| } |
| |
| void MetricsCollector::MemuseCallback() { |
| // Since we only care about active time (i.e. uptime minus sleep time) but |
| // the callbacks are driven by real time (uptime), we check if we should |
| // reschedule this callback due to intervening sleep periods. |
| double now = GetActiveTime(); |
| // Avoid intervals of less than one second. |
| double remaining_time = ceil(memuse_final_time_ - now); |
| if (remaining_time > 0) { |
| ScheduleMemuseCallback(remaining_time); |
| } else { |
| // Report stats and advance the measurement interval unless there are |
| // errors or we've completed the last interval. |
| if (MemuseCallbackWork() && |
| memuse_interval_index_ < arraysize(kMemuseIntervals)) { |
| double interval = kMemuseIntervals[memuse_interval_index_++]; |
| memuse_final_time_ = now + interval; |
| ScheduleMemuseCallback(interval); |
| } |
| } |
| } |
| |
| bool MetricsCollector::MemuseCallbackWork() { |
| string meminfo_raw; |
| const FilePath meminfo_path(kMeminfoFileName); |
| if (!base::ReadFileToString(meminfo_path, &meminfo_raw)) { |
| LOG(WARNING) << "cannot read " << meminfo_path.value().c_str(); |
| return false; |
| } |
| return ProcessMemuse(meminfo_raw); |
| } |
| |
| bool MetricsCollector::ProcessMemuse(const string& meminfo_raw) { |
| static const MeminfoRecord fields_array[] = { |
| { "MemTotal", "MemTotal" }, // SPECIAL CASE: total system memory |
| { "ActiveAnon", "Active(anon)" }, |
| { "InactiveAnon", "Inactive(anon)" }, |
| }; |
| vector<MeminfoRecord> fields(fields_array, |
| fields_array + arraysize(fields_array)); |
| if (!FillMeminfo(meminfo_raw, &fields)) { |
| return false; |
| } |
| int total = fields[0].value; |
| int active_anon = fields[1].value; |
| int inactive_anon = fields[2].value; |
| if (total == 0) { |
| // this "cannot happen" |
| LOG(WARNING) << "borked meminfo parser"; |
| return false; |
| } |
| string metrics_name = base::StringPrintf("Platform.MemuseAnon%d", |
| memuse_interval_index_); |
| SendLinearSample(metrics_name, (active_anon + inactive_anon) * 100 / total, |
| 100, 101); |
| return true; |
| } |
| |
| void MetricsCollector::SendSample(const string& name, int sample, |
| int min, int max, int nbuckets) { |
| metrics_lib_->SendToUMA(name, sample, min, max, nbuckets); |
| } |
| |
| void MetricsCollector::SendKernelCrashesCumulativeCountStats() { |
| // Report the number of crashes for this OS version, but don't clear the |
| // counter. It is cleared elsewhere on version change. |
| int64_t crashes_count = kernel_crashes_version_count_->Get(); |
| SendSample(kernel_crashes_version_count_->Name(), |
| crashes_count, |
| 1, // value of first bucket |
| 500, // value of last bucket |
| 100); // number of buckets |
| |
| |
| int64_t cpu_use_ms = version_cumulative_cpu_use_->Get(); |
| SendSample(version_cumulative_cpu_use_->Name(), |
| cpu_use_ms / 1000, // stat is in seconds |
| 1, // device may be used very little... |
| 8 * 1000 * 1000, // ... or a lot (a little over 90 days) |
| 100); |
| |
| // On the first run after an autoupdate, cpu_use_ms and active_use_seconds |
| // can be zero. Avoid division by zero. |
| if (cpu_use_ms > 0) { |
| // Send the crash frequency since update in number of crashes per CPU year. |
| SendSample("Logging.KernelCrashesPerCpuYear", |
| crashes_count * kSecondsPerDay * 365 * 1000 / cpu_use_ms, |
| 1, |
| 1000 * 1000, // about one crash every 30s of CPU time |
| 100); |
| } |
| |
| int64_t active_use_seconds = version_cumulative_active_use_->Get(); |
| if (active_use_seconds > 0) { |
| SendSample(version_cumulative_active_use_->Name(), |
| active_use_seconds, |
| 1, // device may be used very little... |
| 8 * 1000 * 1000, // ... or a lot (about 90 days) |
| 100); |
| // Same as above, but per year of active time. |
| SendSample("Logging.KernelCrashesPerActiveYear", |
| crashes_count * kSecondsPerDay * 365 / active_use_seconds, |
| 1, |
| 1000 * 1000, // about one crash every 30s of active time |
| 100); |
| } |
| } |
| |
| void MetricsCollector::SendAndResetDailyUseSample( |
| const scoped_ptr<PersistentInteger>& use) { |
| SendSample(use->Name(), |
| use->GetAndClear(), |
| 1, // value of first bucket |
| kSecondsPerDay, // value of last bucket |
| 50); // number of buckets |
| } |
| |
| void MetricsCollector::SendAndResetCrashIntervalSample( |
| const scoped_ptr<PersistentInteger>& interval) { |
| SendSample(interval->Name(), |
| interval->GetAndClear(), |
| 1, // value of first bucket |
| 4 * kSecondsPerWeek, // value of last bucket |
| 50); // number of buckets |
| } |
| |
| void MetricsCollector::SendAndResetCrashFrequencySample( |
| const scoped_ptr<PersistentInteger>& frequency) { |
| SendSample(frequency->Name(), |
| frequency->GetAndClear(), |
| 1, // value of first bucket |
| 100, // value of last bucket |
| 50); // number of buckets |
| } |
| |
| void MetricsCollector::SendLinearSample(const string& name, int sample, |
| int max, int nbuckets) { |
| // TODO(semenzato): add a proper linear histogram to the Chrome external |
| // metrics API. |
| LOG_IF(FATAL, nbuckets != max + 1) << "unsupported histogram scale"; |
| metrics_lib_->SendEnumToUMA(name, sample, max); |
| } |
| |
| void MetricsCollector::UpdateStats(TimeTicks now_ticks, |
| Time now_wall_time) { |
| const int elapsed_seconds = (now_ticks - last_update_stats_time_).InSeconds(); |
| daily_active_use_->Add(elapsed_seconds); |
| version_cumulative_active_use_->Add(elapsed_seconds); |
| user_crash_interval_->Add(elapsed_seconds); |
| kernel_crash_interval_->Add(elapsed_seconds); |
| TimeDelta cpu_use = cpu_usage_collector_->GetCumulativeCpuUse(); |
| version_cumulative_cpu_use_->Add( |
| (cpu_use - latest_cpu_use_microseconds_).InMilliseconds()); |
| latest_cpu_use_microseconds_ = cpu_use; |
| last_update_stats_time_ = now_ticks; |
| |
| const TimeDelta since_epoch = now_wall_time - Time::UnixEpoch(); |
| const int day = since_epoch.InDays(); |
| const int week = day / 7; |
| |
| if (daily_cycle_->Get() != day) { |
| daily_cycle_->Set(day); |
| SendAndResetDailyUseSample(daily_active_use_); |
| SendAndResetCrashFrequencySample(any_crashes_daily_count_); |
| SendAndResetCrashFrequencySample(user_crashes_daily_count_); |
| SendAndResetCrashFrequencySample(kernel_crashes_daily_count_); |
| SendAndResetCrashFrequencySample(unclean_shutdowns_daily_count_); |
| SendKernelCrashesCumulativeCountStats(); |
| } |
| |
| if (weekly_cycle_->Get() != week) { |
| weekly_cycle_->Set(week); |
| SendAndResetCrashFrequencySample(any_crashes_weekly_count_); |
| SendAndResetCrashFrequencySample(user_crashes_weekly_count_); |
| SendAndResetCrashFrequencySample(kernel_crashes_weekly_count_); |
| SendAndResetCrashFrequencySample(unclean_shutdowns_weekly_count_); |
| } |
| } |
| |
| void MetricsCollector::HandleUpdateStatsTimeout() { |
| UpdateStats(TimeTicks::Now(), Time::Now()); |
| base::MessageLoop::current()->PostDelayedTask(FROM_HERE, |
| base::Bind(&MetricsCollector::HandleUpdateStatsTimeout, |
| base::Unretained(this)), |
| base::TimeDelta::FromMilliseconds(kUpdateStatsIntervalMs)); |
| } |
