commit 094c3ef60bd7f9c69e653413771c1fe17494359f
author Jing Ji <jji@google.com> Tue Aug 27 17:02:09 2019 -0700
committer Jing Ji <jji@google.com> Thu Oct 17 10:57:35 2019 -0700
tree d7922c305dadba1a47d57636ccb38c11c9769197
parent 794318432f8867e540e828f939492bf83b681344

OomAdjust Performance Improvement

* Reduce the number of processes to be computed.
* Reduce the overhead of getting process attributes

Overall by average the time spent on the OomAdjust update goes
down from 911us to 441us (51.6% faster) in Day-Of-Use test.

Bug: 135941673
Test: forrest test health/reliability/greenday
Test: Loop test
Test: atest MockingOomAdjusterTests
Test: atest FrameworksServicesTests:ActivityManagerServiceTest
Test: atest CtsAppTestCases:ActivityManagerProcessStateTest

Change-Id: I43cc4af4a268b24620c3231a87f7c9d2a14e4fbc