Snapshot memory state for some native processes
Which processes to snapshot is controlled by a whitelist.
Benchmark for taking the snapshot:
https://docs.google.com/spreadsheets/d/1vG9ku8Uu8104CmKbO4cNeEKVeeByvHY--p0_dK1GAdA/edit?usp=sharing
(The difference between the first two sheets.)
~20ms constant cost plus ~4ms per process.
Bug: 115968899
Test: manually verified that statsd is included in the report
Change-Id: Iba680531c563ba28fae849e44044313866b2103f
diff --git a/atoms.proto b/atoms.proto
index 4045996..10b7c0b 100644
--- a/atoms.proto
+++ b/atoms.proto
@@ -146,7 +146,7 @@
}
// Pulled events will start at field 10000.
- // Next: 10025
+ // Next: 10037
oneof pulled {
WifiBytesTransfer wifi_bytes_transfer = 10000;
WifiBytesTransferByFgBg wifi_bytes_transfer_by_fg_bg = 10001;
@@ -184,6 +184,7 @@
PowerProfile power_profile = 10033;
ProcStats proc_stats_pkg_proc = 10034;
ProcessCpuTime process_cpu_time = 10035;
+ NativeProcessMemoryState native_process_memory_state = 10036;
}
// DO NOT USE field numbers above 100,000 in AOSP.
@@ -2345,6 +2346,31 @@
}
/*
+ * 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 process name.
+ optional string process_name = 2;
+
+ // # of page-faults
+ optional int64 pgfault = 3;
+
+ // # of major page-faults
+ optional int64 pgmajfault = 4;
+
+ // 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;
+}
+
+/*
* Elapsed real time from SystemClock.
*/
message SystemElapsedRealtime {
@@ -3022,4 +3048,4 @@
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
+}
