tree 1b40050796f54ac8f1cd4db70cd1bad571492f18
parent 57b47f9b59b8850c5cf7ddba587cc0cb094ca878
author Mathieu Chartier <mathieuc@google.com> 1340136909 -0700
committer Mathieu Chartier <mathieuc@google.com> 1340667595 -0700

Enable mod union table

Enable mod union table(bitmap). This change aims to reduce the second pause times by processing dirty image cards and cleaning them by storing their alloc space references in a bitmap. The bitmap is then scanned concurrently(if CMS) before recursive mark.

Reduces second pause time. Second pause time now typically < 5 ms instead of 30-40ms.

Change-Id: I831eeb8af7299d4e86cf2dd9c29d0b7e230cd387