319
320 LinearLeastSquareFit* major_pause_young_estimator() {
321 return _major_pause_young_estimator;
322 }
323
324
325 virtual void clear_generation_free_space_flags();
326
327 float major_pause_old_slope() { return _major_pause_old_estimator->slope(); }
328 float major_pause_young_slope() {
329 return _major_pause_young_estimator->slope();
330 }
331 float major_collection_slope() { return _major_collection_estimator->slope();}
332
333 bool old_gen_policy_is_ready() { return _old_gen_policy_is_ready; }
334
335 // Given the amount of live data in the heap, should we
336 // perform a Full GC?
337 bool should_full_GC(size_t live_in_old_gen);
338
339 // Calculates optimial free space sizes for both the old and young
340 // generations. Stores results in _eden_size and _promo_size.
341 // Takes current used space in all generations as input, as well
342 // as an indication if a full gc has just been performed, for use
343 // in deciding if an OOM error should be thrown.
344 void compute_generation_free_space(size_t young_live,
345 size_t eden_live,
346 size_t old_live,
347 size_t cur_eden, // current eden in bytes
348 size_t max_old_gen_size,
349 size_t max_eden_size,
350 bool is_full_gc,
351 GCCause::Cause gc_cause,
352 CollectorPolicy* collector_policy);
353
354 // Calculates new survivor space size; returns a new tenuring threshold
355 // value. Stores new survivor size in _survivor_size.
356 uint compute_survivor_space_size_and_threshold(bool is_survivor_overflow,
357 uint tenuring_threshold,
358 size_t survivor_limit);
359
360 // Return the maximum size of a survivor space if the young generation were of
361 // size gen_size.
362 size_t max_survivor_size(size_t gen_size) {
363 // Never allow the target survivor size to grow more than MinSurvivorRatio
364 // of the young generation size. We cannot grow into a two semi-space
|
319
320 LinearLeastSquareFit* major_pause_young_estimator() {
321 return _major_pause_young_estimator;
322 }
323
324
325 virtual void clear_generation_free_space_flags();
326
327 float major_pause_old_slope() { return _major_pause_old_estimator->slope(); }
328 float major_pause_young_slope() {
329 return _major_pause_young_estimator->slope();
330 }
331 float major_collection_slope() { return _major_collection_estimator->slope();}
332
333 bool old_gen_policy_is_ready() { return _old_gen_policy_is_ready; }
334
335 // Given the amount of live data in the heap, should we
336 // perform a Full GC?
337 bool should_full_GC(size_t live_in_old_gen);
338
339 // Calculates optimal free space sizes for both the young and tenured
340 // generations. Stores results in _eden_size and _promo_size.
341 // Takes current used space in all generations as input, as well
342 // as an indication if a full gc has just been performed, for use
343 // in deciding if an OOM error should be thrown.
344 void compute_generations_free_space(size_t young_live,
345 size_t eden_live,
346 size_t old_live,
347 size_t cur_eden, // current eden in bytes
348 size_t max_old_gen_size,
349 size_t max_eden_size,
350 bool is_full_gc,
351 GCCause::Cause gc_cause,
352 CollectorPolicy* collector_policy);
353
354 // Calculates new survivor space size; returns a new tenuring threshold
355 // value. Stores new survivor size in _survivor_size.
356 uint compute_survivor_space_size_and_threshold(bool is_survivor_overflow,
357 uint tenuring_threshold,
358 size_t survivor_limit);
359
360 // Return the maximum size of a survivor space if the young generation were of
361 // size gen_size.
362 size_t max_survivor_size(size_t gen_size) {
363 // Never allow the target survivor size to grow more than MinSurvivorRatio
364 // of the young generation size. We cannot grow into a two semi-space
|