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comparison src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp @ 3868:ae73da50be4b

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7081064: G1: remove develop params G1FixedSurvivorSpaceSize, G1FixedTenuringThreshold, and G1FixedEdenSize Summary: Remove three develop parameters we don't use. Reviewed-by: brutisso, jwilhelm
author tonyp
date Mon, 22 Aug 2011 10:16:33 -0400
parents ff53346271fe
children 20213c8a3c40
comparison
equal deleted inserted replaced
3867:ff53346271fe 3868:ae73da50be4b
399 399
400 // start conservatively (around 50ms is about right) 400 // start conservatively (around 50ms is about right)
401 _concurrent_mark_remark_times_ms->add(0.05); 401 _concurrent_mark_remark_times_ms->add(0.05);
402 _concurrent_mark_cleanup_times_ms->add(0.20); 402 _concurrent_mark_cleanup_times_ms->add(0.20);
403 _tenuring_threshold = MaxTenuringThreshold; 403 _tenuring_threshold = MaxTenuringThreshold;
404 404 // _max_survivor_regions will be calculated by
405 // if G1FixedSurvivorSpaceSize is 0 which means the size is not 405 // calculate_young_list_target_length() during initialization.
406 // fixed, then _max_survivor_regions will be calculated at 406 _max_survivor_regions = 0;
407 // calculate_young_list_target_length during initialization
408 _max_survivor_regions = G1FixedSurvivorSpaceSize / HeapRegion::GrainBytes;
409 407
410 assert(GCTimeRatio > 0, 408 assert(GCTimeRatio > 0,
411 "we should have set it to a default value set_g1_gc_flags() " 409 "we should have set it to a default value set_g1_gc_flags() "
412 "if a user set it to 0"); 410 "if a user set it to 0");
413 _gc_overhead_perc = 100.0 * (1.0 / (1.0 + GCTimeRatio)); 411 _gc_overhead_perc = 100.0 * (1.0 / (1.0 + GCTimeRatio));
2288 } 2286 }
2289 2287
2290 // Calculates survivor space parameters. 2288 // Calculates survivor space parameters.
2291 void G1CollectorPolicy::calculate_survivors_policy() 2289 void G1CollectorPolicy::calculate_survivors_policy()
2292 { 2290 {
2293 if (G1FixedSurvivorSpaceSize == 0) { 2291 _max_survivor_regions = _young_list_target_length / SurvivorRatio;
2294 _max_survivor_regions = _young_list_target_length / SurvivorRatio; 2292 _tenuring_threshold = _survivors_age_table.compute_tenuring_threshold(
2295 } else {
2296 _max_survivor_regions = G1FixedSurvivorSpaceSize / HeapRegion::GrainBytes;
2297 }
2298
2299 if (G1FixedTenuringThreshold) {
2300 _tenuring_threshold = MaxTenuringThreshold;
2301 } else {
2302 _tenuring_threshold = _survivors_age_table.compute_tenuring_threshold(
2303 HeapRegion::GrainWords * _max_survivor_regions); 2293 HeapRegion::GrainWords * _max_survivor_regions);
2304 }
2305 } 2294 }
2306 2295
2307 #ifndef PRODUCT 2296 #ifndef PRODUCT
2308 class HRSortIndexIsOKClosure: public HeapRegionClosure { 2297 class HRSortIndexIsOKClosure: public HeapRegionClosure {
2309 CollectionSetChooser* _chooser; 2298 CollectionSetChooser* _chooser;