Record process start time for native processes
Process start time is recorded to detect whether two memory samples
come from the same process and how long the process was alive.
Bug: 118249210
Test: atest MemoryStatUtilTest and manually verified that data is in
statsd report
Change-Id: I7f49cd8bfc81c5e7e70e4f8b49729632eeec5798
diff --git a/cmds/statsd/src/atoms.proto b/cmds/statsd/src/atoms.proto
index 2f69ac1..bce1820 100644
--- a/cmds/statsd/src/atoms.proto
+++ b/cmds/statsd/src/atoms.proto
@@ -2404,25 +2404,28 @@
* Logs the memory stats for a native process (from procfs).
*/
message NativeProcessMemoryState {
- // The uid if available. -1 means not available.
- optional int32 uid = 1 [(is_uid) = true];
+ // The uid if available. -1 means not available.
+ optional int32 uid = 1 [(is_uid) = true];
- // The process name.
- optional string process_name = 2;
+ // The process name.
+ optional string process_name = 2;
- // # of page-faults
- optional int64 page_fault = 3;
+ // # of page-faults
+ optional int64 page_fault = 3;
- // # of major page-faults
- optional int64 page_major_fault = 4;
+ // # of major page-faults
+ optional int64 page_major_fault = 4;
- // RSS
- optional int64 rss_in_bytes = 5;
+ // RSS
+ optional int64 rss_in_bytes = 5;
- // RSS high watermark.
- // Peak RSS usage of the process. Value is read from the VmHWM field in /proc/PID/status or
- // from memory.max_usage_in_bytes under /dev/memcg if the device uses per-app memory cgroups.
- optional int64 rss_high_watermark_in_bytes = 6;
+ // RSS high watermark.
+ // Peak RSS usage of the process. Value is read from the VmHWM field in /proc/PID/status.
+ optional int64 rss_high_watermark_in_bytes = 6;
+
+ // Elapsed real time when the process started.
+ // Value is read from /proc/PID/stat, field 22.
+ optional int64 start_time_nanos = 7;
}
/*
@@ -3117,4 +3120,4 @@
optional int64 user_time_millis = 3;
// Process cpu time in system space, cumulative from boot/process start
optional int64 system_time_millis = 4;
-}
\ No newline at end of file
+}