aaf608959c2feafd40508ce3ef32fef2a01d7553 - platform/frameworks/base

commit	aaf608959c2feafd40508ce3ef32fef2a01d7553	[log] [tgz]
author	Rafal Slawik <rslawik@google.com>	Wed Sep 12 13:04:30 2018 +0100
committer	Rafal Slawik <rslawik@google.com>	Wed Sep 26 09:25:01 2018 +0000
tree	461d0b910c3fd8be51fc1118f16243f9cb4cbe1f
parent	4fee398440e4cb69dd2b79f4f0ac85cea89a6bdc [diff]

Read RSS high watermark

The value is read from /proc/PID/status or memory.max_usage_in_bytes (for devices with per-app memcg enabled).

Reading the value takes about 2ms per process.
Full snapshot taken by statsd is around 300ms.

Results: https://docs.google.com/spreadsheets/d/1vG9ku8Uu8104CmKbO4cNeEKVeeByvHY--p0_dK1GAdA/edit?usp=sharing

Bug: 115477992
Test: atest FrameworksServicesTests
Change-Id: I87995cbd85085375ade685f29e986ba173f9693e

cmds/statsd/src/atoms.proto[diff]
cmds/statsd/src/external/StatsPullerManager.cpp[diff]
core/java/android/app/ProcessMemoryState.java[diff]
services/core/java/com/android/server/am/ActivityManagerService.java[diff]
services/core/java/com/android/server/am/MemoryStatUtil.java[diff]
services/core/java/com/android/server/stats/StatsCompanionService.java[diff]
services/tests/servicestests/src/com/android/server/am/MemoryStatUtilTest.java[diff]

7 files changed

tree: 461d0b910c3fd8be51fc1118f16243f9cb4cbe1f