RFR(S): 6818524: G1: use ergonomic resizing of PLABs

Kirk Pepperdine kirk at kodewerk.com
Wed Aug 8 11:56:02 UTC 2012


Hi,

I'm looking at this record.

919.673: [GC-- [PSYoungGen: 643582K->643582K(648704K)] 1905561K->2004508K(2014080K), 0.0319900 secs]

This implies that there are +98947K bytes consumed during the collection. However, this is a STW collection implying that the source of the heap consumption is the garbage collector it's self which implies that objects are copied and then removed from young gen. If so, does this mean that there is a failure in that the VM have recognized that heap occupancy was @ 94.6% prior to the collection implying that is was very likely that tenured would be flooded by scavenge?

Regards,
Kirk




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