3 Commits

Author SHA1 Message Date
John Cuthbertson
0fa6fc2279 6484965: G1: piggy-back liveness accounting phase on marking
Remove the separate counting phase of concurrent marking by tracking the amount of marked bytes and the cards spanned by marked objects in marking task/worker thread local data structures, which are updated as individual objects are marked.

Reviewed-by: brutisso, tonyp
2012-01-12 00:06:47 -08:00
Antonios Printezis
1d3b26e52b 6888336: G1: avoid explicitly marking and pushing objects in survivor spaces
This change simplifies the interaction between GC and concurrent marking. By disabling survivor spaces during the initial-mark pause we don't need to propagate marks of objects we copy during each GC (since we never need to copy an explicitly marked object).

Reviewed-by: johnc, brutisso
2012-01-10 18:58:13 -05:00
John Cuthbertson
39d61f89a2 7121496: G1: do the per-region evacuation failure handling work in parallel
Parallelize the removal of self forwarding pointers etc. by wrapping in a HeapRegion closure, which is then wrapped inside an AbstractGangTask.

Reviewed-by: tonyp, iveresov
2011-12-23 11:14:18 -08:00