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Commit ef0a090e authored by James Hawkins's avatar James Hawkins
Browse files

bootstat: Log ro.boottime.init timing properties. 

Bug: none
Test: adb logcat | grep bootstat
Change-Id: I3375c75e8ef39be710c8001f19a9e2fb493805e9
parent 9f59a466

bootstat/bootstat.cpp

+17 −0
Original line number Diff line number Diff line
@@ -207,6 +207,19 @@ std::string CalculateBootCompletePrefix() { 
  return boot_complete_prefix;

}



// Records the value of a given ro.boottime.init property in milliseconds.

void RecordInitBootTimeProp(

    BootEventRecordStore* boot_event_store, const char* property) {

  std::string value = GetProperty(property);



  int32_t time_in_ns;

  if (android::base::ParseInt(value, &time_in_ns)) {

    static constexpr int32_t kNanosecondsPerMillisecond = 1e6;

    int32_t time_in_ms = static_cast<int32_t>(time_in_ns / kNanosecondsPerMillisecond);

    boot_event_store->AddBootEventWithValue(property, time_in_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() {
@@ -256,6 +269,10 @@ void RecordBootComplete() { 
  // Record the total time from device startup to boot complete, regardless of

  // encryption state.

  boot_event_store.AddBootEventWithValue(boot_complete_prefix, uptime);



  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");

}



// Records the boot_reason metric by querying the ro.boot.bootreason system