tree be04d041043652f0704996c9bfcded63aec1745f
parent b2fa4708ade8ed5b02d8dfd99e238b6a5d03aadb
author Y. Srinivas Ramakrishna <ysr@openjdk.org> 1292658091 -0800
committer Y. Srinivas Ramakrishna <ysr@openjdk.org> 1292658091 -0800

6807801: CMS: could save/restore fewer header words during scavenge

Age bits need not enter the mark-word preservation calculus; also affected, in addition to CMS, per CR synopsis above, were ParNew (but not DefNew), ParallelScavenge and G1, albeit to a lesser degree than CMS.

Reviewed-by: tonyp, johnc