Mercurial > hg > truffle
comparison src/share/vm/gc_implementation/g1/concurrentMark.hpp @ 4711:adedfbbf0360
7120038: G1: ParallelGCThreads==0 is broken
Summary: Running G1 with ParallelGCThreads==0 results in various crashes and asserts. Most of these are caused by unguarded references to the worker threads array or an incorrect number of active workers.
Reviewed-by: jmasa, tonyp
| author | johnc |
|---|---|
| date | Fri, 16 Dec 2011 11:40:00 -0800 |
| parents | dc467e8b2c5e |
| children | 441e946dc1af |
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| 4710:41406797186b | 4711:adedfbbf0360 |
|---|---|
| 716 // phase based on the number of GC threads being used in a STW | 716 // phase based on the number of GC threads being used in a STW |
| 717 // phase. | 717 // phase. |
| 718 size_t scale_parallel_threads(size_t n_par_threads); | 718 size_t scale_parallel_threads(size_t n_par_threads); |
| 719 | 719 |
| 720 // Calculates the number of GC threads to be used in a concurrent phase. | 720 // Calculates the number of GC threads to be used in a concurrent phase. |
| 721 int calc_parallel_marking_threads(); | 721 size_t calc_parallel_marking_threads(); |
| 722 | 722 |
| 723 // The following three are interaction between CM and | 723 // The following three are interaction between CM and |
| 724 // G1CollectedHeap | 724 // G1CollectedHeap |
| 725 | 725 |
| 726 // This notifies CM that a root during initial-mark needs to be | 726 // This notifies CM that a root during initial-mark needs to be |