tree 3dbc930a653615e074cc4965ded9e0cc6ed07a45
parent 66e4c3e96dccdec7423d673ad6bbf7821a776651
author Mathieu Chartier <mathieuc@google.com> 1395274097 -0700
committer Mathieu Chartier <mathieuc@google.com> 1395332222 -0700

Add soft reference pre processing.

Soft reference pre-processing does soft reference preservation with
mutators running. After this is done, it does another pass with
mutators paused in the ProcessReference code. This helps lower pauses
since most preserved soft references have their referents recursive
marked outside the pause.

Changed ergonomics to have non sticky collectors always clear the
soft references.

Maps pauses ~10ms -> ~3ms on Nexus 4.

Bug: 13421927

Change-Id: I1370f7bb6934034869aa5afca0c377876267aa8e