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platform_system_core
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Merge "bootstat: Log bootloader timing metrics to Tron." am: 01b25ab149 am: c740363341 am: 1c8c915cfb 

am: 550b6d3b0b

Change-Id: I078f1bde0eb299a3dfc541f20aa22e663769c9e1
This commit is contained in:
James Hawkins 2017-02-03 19:27:40 +00:00 committed by android-build-merger
parent 900678cfca 550b6d3b0b
commit 9f5d1c1258
1 changed files with 25 additions and 0 deletions
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25
bootstat/bootstat.cpp
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@ -28,10 +28,12 @@
#include <map>
#include <memory>
#include <string>
#include <vector>
#include <android/log.h>
#include <android-base/logging.h>
#include <android-base/parseint.h>
#include <android-base/strings.h>
#include <cutils/properties.h>
#include "boot_event_record_store.h"
@ -218,6 +220,27 @@ void RecordInitBootTimeProp(
}
}
// Parses and records the set of bootloader stages and associated boot times
// from the ro.boot.boottime system property.
void RecordBootloaderTimings(BootEventRecordStore* boot_event_store) {
// |ro.boot.boottime| is of the form 'stage1:time1,...,stageN:timeN'.
std::string value = GetProperty("ro.boot.boottime");
auto stages = android::base::Split(value, ",");
for (auto const &stageTiming : stages) {
// |stageTiming| is of the form 'stage:time'.
auto stageTimingValues = android::base::Split(stageTiming, ":");
DCHECK_EQ(2, stageTimingValues.size());
std::string stageName = stageTimingValues[0];
int32_t time_ms;
if (android::base::ParseInt(stageTimingValues[1], &time_ms)) {
boot_event_store->AddBootEventWithValue(
"boottime.bootloader." + stageName, time_ms);
}
}
}
// Records several metrics related to the time it takes to boot the device,
// including disambiguating boot time on encrypted or non-encrypted devices.
void RecordBootComplete() {
@ -271,6 +294,8 @@ void RecordBootComplete() {
RecordInitBootTimeProp(&boot_event_store, "ro.boottime.init");
RecordInitBootTimeProp(&boot_event_store, "ro.boottime.init.selinux");
RecordInitBootTimeProp(&boot_event_store, "ro.boottime.init.cold_boot_wait");
RecordBootloaderTimings(&boot_event_store);
}
// Records the boot_reason metric by querying the ro.boot.bootreason system