1.1 --- a/src/share/vm/gc_implementation/g1/concurrentMark.hpp Tue Nov 22 04:47:10 2011 -0500
1.2 +++ b/src/share/vm/gc_implementation/g1/concurrentMark.hpp Tue Aug 09 10:16:01 2011 -0700
1.3 @@ -375,7 +375,9 @@
1.4 ConcurrentMarkThread* _cmThread; // the thread doing the work
1.5 G1CollectedHeap* _g1h; // the heap.
1.6 size_t _parallel_marking_threads; // the number of marking
1.7 - // threads we'll use
1.8 + // threads we're use
1.9 + size_t _max_parallel_marking_threads; // max number of marking
1.10 + // threads we'll ever use
1.11 double _sleep_factor; // how much we have to sleep, with
1.12 // respect to the work we just did, to
1.13 // meet the marking overhead goal
1.14 @@ -473,7 +475,7 @@
1.15
1.16 double* _accum_task_vtime; // accumulated task vtime
1.17
1.18 - WorkGang* _parallel_workers;
1.19 + FlexibleWorkGang* _parallel_workers;
1.20
1.21 ForceOverflowSettings _force_overflow_conc;
1.22 ForceOverflowSettings _force_overflow_stw;
1.23 @@ -504,6 +506,7 @@
1.24
1.25 // accessor methods
1.26 size_t parallel_marking_threads() { return _parallel_marking_threads; }
1.27 + size_t max_parallel_marking_threads() { return _max_parallel_marking_threads;}
1.28 double sleep_factor() { return _sleep_factor; }
1.29 double marking_task_overhead() { return _marking_task_overhead;}
1.30 double cleanup_sleep_factor() { return _cleanup_sleep_factor; }
1.31 @@ -709,6 +712,14 @@
1.32 CMBitMapRO* prevMarkBitMap() const { return _prevMarkBitMap; }
1.33 CMBitMap* nextMarkBitMap() const { return _nextMarkBitMap; }
1.34
1.35 + // Returns the number of GC threads to be used in a concurrent
1.36 + // phase based on the number of GC threads being used in a STW
1.37 + // phase.
1.38 + size_t scale_parallel_threads(size_t n_par_threads);
1.39 +
1.40 + // Calculates the number of GC threads to be used in a concurrent phase.
1.41 + int calc_parallel_marking_threads();
1.42 +
1.43 // The following three are interaction between CM and
1.44 // G1CollectedHeap
1.45
