tonyp [Sun, 19 Dec 2010 20:57:16 -0500] rev 7659
6896624: G1: hotspot:::gc and hotspot:::mem-pool-gc probes are not fired
Summary: Fire the gc-begin and gc-end probes for G1.
Reviewed-by: kamg, ysr, jcoomes
ysr [Fri, 17 Dec 2010 23:41:31 -0800] rev 7658
6807801: CMS: could save/restore fewer header words during scavenge
Summary: 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