Add statsd atom PROCESS_START_TIME
The definition of app process start time is from the app
launch time to the time that Zygote finished fork the app process and
loaded the application package's java classes.
The app process can be started for any component including activity,
service, content provider, broadcast receiver or other, either in
foreground or background.
The difference of this atom from existing atom like AppStartOccured
is that this atom can report start time for both foreground and
background process.
Bug: 122356380
Test: NA.
Change-Id: Ifcc0c80f1da45c2ff89f7c88da6407ba777473e2
diff --git a/cmds/statsd/src/atoms.proto b/cmds/statsd/src/atoms.proto
index 427662a..b7f819f 100644
--- a/cmds/statsd/src/atoms.proto
+++ b/cmds/statsd/src/atoms.proto
@@ -235,6 +235,7 @@
BluetoothClassicPairingEventReported bluetooth_classic_pairing_event_reported = 166;
BluetoothSmpPairingEventReported bluetooth_smp_pairing_event_reported = 167;
ScreenTimeoutExtensionReported screen_timeout_extension_reported = 168;
+ ProcessStartTime process_start_time = 169;
}
// Pulled events will start at field 10000.
@@ -5303,3 +5304,59 @@
// Describes how many times in a row did the power manager reset the screen off timeout.
optional uint32 consecutive_timeout_extended_count = 1;
}
+
+/*
+* Logs number of milliseconds it takes to start a process.
+* The definition of app process start time is from the app launch time to
+* the time that Zygote finished forking the app process and loaded the
+* application package's java classes.
+
+* This metric is different from AppStartOccurred which is for foreground
+* activity only.
+
+* ProcessStartTime can report all processes (both foreground and background)
+* start time.
+*
+* Logged from:
+* frameworks/base/services/core/java/com/android/server/am/ActivityManagerService.java
+*/
+message ProcessStartTime {
+ // The uid of the ProcessRecord.
+ optional int32 uid = 1 [(is_uid) = true];
+
+ // The process pid.
+ optional int32 pid = 2;
+
+ // The process name.
+ // Usually package name, "system" for system server.
+ // Provided by ActivityManagerService.
+ optional string process_name = 3;
+
+ enum StartType {
+ UNKNOWN = 0;
+ WARM = 1;
+ HOT = 2;
+ COLD = 3;
+ }
+
+ // The start type.
+ optional StartType type = 4;
+
+ // The elapsed realtime at the start of the process.
+ optional int64 process_start_time_millis = 5;
+
+ // Number of milliseconds it takes to reach bind application.
+ optional int32 bind_application_delay_millis = 6;
+
+ // Number of milliseconds it takes to finish start of the process.
+ optional int32 process_start_delay_millis = 7;
+
+ // hostingType field in ProcessRecord, the component type such as "activity",
+ // "service", "content provider", "broadcast" or other strings.
+ optional string hosting_type = 8;
+
+ // hostingNameStr field in ProcessRecord. The component class name that runs
+ // in this process.
+ optional string hosting_name = 9;
+}
+