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src/share/vm/gc/g1/g1DefaultPolicy.cpp

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 587     // This usually happens due to the timer not having the required
 588     // granularity. Some Linuxes are the usual culprits.
 589     // We'll just set it to something (arbitrarily) small.
 590     app_time_ms = 1.0;
 591   }
 592 
 593   if (update_stats) {
 594     // We maintain the invariant that all objects allocated by mutator
 595     // threads will be allocated out of eden regions. So, we can use
 596     // the eden region number allocated since the previous GC to
 597     // calculate the application's allocate rate. The only exception
 598     // to that is humongous objects that are allocated separately. But
 599     // given that humongous object allocations do not really affect
 600     // either the pause's duration nor when the next pause will take
 601     // place we can safely ignore them here.
 602     uint regions_allocated = _collection_set->eden_region_length();
 603     double alloc_rate_ms = (double) regions_allocated / app_time_ms;
 604     _analytics->report_alloc_rate_ms(alloc_rate_ms);
 605 
 606     double interval_ms =
 607       (end_time_sec - _analytics->oldest_known_gc_end_time_sec()) * 1000.0;
 608     _analytics->update_recent_gc_times(end_time_sec, pause_time_ms);
 609     _analytics->compute_pause_time_ratio(interval_ms, pause_time_ms);
 610   }
 611 
 612   bool new_in_marking_window = collector_state()->in_marking_window();
 613   bool new_in_marking_window_im = false;
 614   if (last_pause_included_initial_mark) {
 615     new_in_marking_window = true;
 616     new_in_marking_window_im = true;
 617   }
 618 
 619   if (collector_state()->last_young_gc()) {
 620     // This is supposed to to be the "last young GC" before we start
 621     // doing mixed GCs. Here we decide whether to start mixed GCs or not.
 622     assert(!last_pause_included_initial_mark, "The last young GC is not allowed to be an initial mark GC");
 623 
 624     if (next_gc_should_be_mixed("start mixed GCs",
 625                                 "do not start mixed GCs")) {
 626       collector_state()->set_gcs_are_young(false);
 627     } else {




 587     // This usually happens due to the timer not having the required
 588     // granularity. Some Linuxes are the usual culprits.
 589     // We'll just set it to something (arbitrarily) small.
 590     app_time_ms = 1.0;
 591   }
 592 
 593   if (update_stats) {
 594     // We maintain the invariant that all objects allocated by mutator
 595     // threads will be allocated out of eden regions. So, we can use
 596     // the eden region number allocated since the previous GC to
 597     // calculate the application's allocate rate. The only exception
 598     // to that is humongous objects that are allocated separately. But
 599     // given that humongous object allocations do not really affect
 600     // either the pause's duration nor when the next pause will take
 601     // place we can safely ignore them here.
 602     uint regions_allocated = _collection_set->eden_region_length();
 603     double alloc_rate_ms = (double) regions_allocated / app_time_ms;
 604     _analytics->report_alloc_rate_ms(alloc_rate_ms);
 605 
 606     double interval_ms =
 607       (end_time_sec - _analytics->last_known_gc_end_time_sec()) * 1000.0;
 608     _analytics->update_recent_gc_times(end_time_sec, pause_time_ms);
 609     _analytics->compute_pause_time_ratio(interval_ms, pause_time_ms);
 610   }
 611 
 612   bool new_in_marking_window = collector_state()->in_marking_window();
 613   bool new_in_marking_window_im = false;
 614   if (last_pause_included_initial_mark) {
 615     new_in_marking_window = true;
 616     new_in_marking_window_im = true;
 617   }
 618 
 619   if (collector_state()->last_young_gc()) {
 620     // This is supposed to to be the "last young GC" before we start
 621     // doing mixed GCs. Here we decide whether to start mixed GCs or not.
 622     assert(!last_pause_included_initial_mark, "The last young GC is not allowed to be an initial mark GC");
 623 
 624     if (next_gc_should_be_mixed("start mixed GCs",
 625                                 "do not start mixed GCs")) {
 626       collector_state()->set_gcs_are_young(false);
 627     } else {


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