Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp
src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp
- changeset 3221
- dbfcbecbb2dc
- parent 3219
- c6a6e936dc68
- child 3268
- 8aae2050e83e
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| 3220:c08412904149 | 3221:dbfcbecbb2dc |
|---|---|
| 496 assert(Heap_lock->owned_by_self(), "Locking discipline."); | 496 assert(Heap_lock->owned_by_self(), "Locking discipline."); |
| 497 | 497 |
| 498 initialize_gc_policy_counters(); | 498 initialize_gc_policy_counters(); |
| 499 | 499 |
| 500 G1YoungGenSizer sizer; | 500 G1YoungGenSizer sizer; |
| 501 size_t initial_region_num = sizer.initial_young_region_num(); | |
| 502 _min_desired_young_length = sizer.min_young_region_num(); | 501 _min_desired_young_length = sizer.min_young_region_num(); |
| 503 _max_desired_young_length = sizer.max_young_region_num(); | 502 _max_desired_young_length = sizer.max_young_region_num(); |
| 504 | 503 |
| 505 if (FLAG_IS_CMDLINE(NewRatio)) { | 504 if (FLAG_IS_CMDLINE(NewRatio)) { |
| 506 if (FLAG_IS_CMDLINE(NewSize) || FLAG_IS_CMDLINE(MaxNewSize)) { | 505 if (FLAG_IS_CMDLINE(NewSize) || FLAG_IS_CMDLINE(MaxNewSize)) { |
| 510 update_young_list_size_using_newratio(_g1->n_regions()); | 509 update_young_list_size_using_newratio(_g1->n_regions()); |
| 511 _using_new_ratio_calculations = true; | 510 _using_new_ratio_calculations = true; |
| 512 } | 511 } |
| 513 } | 512 } |
| 514 | 513 |
| 515 // GenCollectorPolicy guarantees that min <= initial <= max. | |
| 516 // Asserting here just to state that we rely on this property. | |
| 517 assert(_min_desired_young_length <= _max_desired_young_length, "Invalid min/max young gen size values"); | 514 assert(_min_desired_young_length <= _max_desired_young_length, "Invalid min/max young gen size values"); |
| 518 assert(initial_region_num <= _max_desired_young_length, "Initial young gen size too large"); | |
| 519 assert(_min_desired_young_length <= initial_region_num, "Initial young gen size too small"); | |
| 520 | 515 |
| 521 set_adaptive_young_list_length(_min_desired_young_length < _max_desired_young_length); | 516 set_adaptive_young_list_length(_min_desired_young_length < _max_desired_young_length); |
| 522 if (adaptive_young_list_length()) { | 517 if (adaptive_young_list_length()) { |
| 523 _young_list_fixed_length = 0; | 518 _young_list_fixed_length = 0; |
| 524 } else { | 519 } else { |
| 525 _young_list_fixed_length = initial_region_num; | 520 assert(_min_desired_young_length == _max_desired_young_length, "Min and max young size differ"); |
| 521 _young_list_fixed_length = _min_desired_young_length; | |
| 526 } | 522 } |
| 527 _free_regions_at_end_of_collection = _g1->free_regions(); | 523 _free_regions_at_end_of_collection = _g1->free_regions(); |
| 528 update_young_list_target_length(); | 524 update_young_list_target_length(); |
| 529 _prev_eden_capacity = _young_list_target_length * HeapRegion::GrainBytes; | 525 _prev_eden_capacity = _young_list_target_length * HeapRegion::GrainBytes; |
| 530 | 526 |
