Zhizhou Yang 17371ecffc Enable PGO for hwui
This patch is trying to apply PGO for hwui. According to some research
on PGO before, we got a 5% to 10% performance improvement with PGO on
hwui and we hope to enable it.

The patch specified a hwui.profdata file, which locates in internal
google_data/pgo_profile directory, to work as the profile to feed PGO.
This profdata can be re-collected through the PGO collecting script in
the benchmark directory, and it was based on hwuimicro/hwuimacro
benchmark for now.

PGO can be turned of by setting ANDROID_PGO_NO_PROFILE_USE environment
variable.

Test: Build hwui successfully and verified the performance improvement
on device through benchmark.
Bug: http://b/63768402

Change-Id: Ib63e5504be34bdfe49f6bc2c52964c30c81f1416
2017-10-13 11:42:13 -07:00
2017-10-13 11:42:13 -07:00
2017-05-23 11:51:15 +01:00
2017-05-01 10:22:44 -04:00
2017-05-10 16:54:20 -07:00
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