tree 3f31c9c660a5d17fb81a9c200b8049c40bd45036
parent 9098ea745c98cd64b19eaac999310da19e0c1a39
author Rafal Slawik <rslawik@google.com> 1542285573 +0000
committer Rafal Slawik <rslawik@google.com> 1542642246 +0000

Add ProcessMemoryHighWaterMark atom

Collection of the RSS high-water mark is moved to a separate atom to
improve performance, increase flexibility and overcome security
constrainsts.
Performance: avoid reading /proc/pid/status in ProcessMemoryState;
flexibility: allow pulling RSS high-water mark on a different schedule;
security: add single point where we can trigger the high-water mark
reset.
The RSS high-water mark will be removed from ProcessMemoryState and
NativeProcessMemoryState atoms in a followup-up CL to ensure that the
collected data is continuous.

Bug: 119598534
Test: atest UidAtomTests#testProcessMemoryHighWaterMark
Change-Id: I52da7b5e695f771f1551e1f6a6a773bded4504d1