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comparison src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp @ 1611:215576b54709

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6946048: G1: improvements to +PrintGCDetails output Summary: Small improvements to G1's PrintGCDetails output. It also includes minor formatting details. Reviewed-by: ysr, johnc
author tonyp
date Thu, 22 Apr 2010 15:20:16 -0400
parents e9ff18c4ace7
children 4e5661ba9d98
comparison
equal deleted inserted replaced
1610:79107c3a6bd5 1611:215576b54709
3970 return queues()->queue(i); 3970 return queues()->queue(i);
3971 } 3971 }
3972 3972
3973 void work(int i) { 3973 void work(int i) {
3974 if (i >= _n_workers) return; // no work needed this round 3974 if (i >= _n_workers) return; // no work needed this round
3975
3976 double start_time_ms = os::elapsedTime() * 1000.0;
3977 _g1h->g1_policy()->record_gc_worker_start_time(i, start_time_ms);
3978
3975 ResourceMark rm; 3979 ResourceMark rm;
3976 HandleMark hm; 3980 HandleMark hm;
3977 3981
3978 G1ParScanThreadState pss(_g1h, i); 3982 G1ParScanThreadState pss(_g1h, i);
3979 G1ParScanHeapEvacClosure scan_evac_cl(_g1h, &pss); 3983 G1ParScanHeapEvacClosure scan_evac_cl(_g1h, &pss);
4017 G1ParEvacuateFollowersClosure evac(_g1h, &pss, _queues, &_terminator); 4021 G1ParEvacuateFollowersClosure evac(_g1h, &pss, _queues, &_terminator);
4018 evac.do_void(); 4022 evac.do_void();
4019 double elapsed_ms = (os::elapsedTime()-start)*1000.0; 4023 double elapsed_ms = (os::elapsedTime()-start)*1000.0;
4020 double term_ms = pss.term_time()*1000.0; 4024 double term_ms = pss.term_time()*1000.0;
4021 _g1h->g1_policy()->record_obj_copy_time(i, elapsed_ms-term_ms); 4025 _g1h->g1_policy()->record_obj_copy_time(i, elapsed_ms-term_ms);
4022 _g1h->g1_policy()->record_termination_time(i, term_ms); 4026 _g1h->g1_policy()->record_termination(i, term_ms, pss.term_attempts());
4023 } 4027 }
4024 _g1h->g1_policy()->record_thread_age_table(pss.age_table()); 4028 _g1h->g1_policy()->record_thread_age_table(pss.age_table());
4025 _g1h->update_surviving_young_words(pss.surviving_young_words()+1); 4029 _g1h->update_surviving_young_words(pss.surviving_young_words()+1);
4026 4030
4027 // Clean up any par-expanded rem sets. 4031 // Clean up any par-expanded rem sets.
4041 double elapsed = pss.elapsed(); 4045 double elapsed = pss.elapsed();
4042 double strong_roots = pss.strong_roots_time(); 4046 double strong_roots = pss.strong_roots_time();
4043 double term = pss.term_time(); 4047 double term = pss.term_time();
4044 gclog_or_tty->print(" Elapsed: %7.2f ms.\n" 4048 gclog_or_tty->print(" Elapsed: %7.2f ms.\n"
4045 " Strong roots: %7.2f ms (%6.2f%%)\n" 4049 " Strong roots: %7.2f ms (%6.2f%%)\n"
4046 " Termination: %7.2f ms (%6.2f%%) (in %d entries)\n", 4050 " Termination: %7.2f ms (%6.2f%%) "
4051 "(in "SIZE_FORMAT" entries)\n",
4047 elapsed * 1000.0, 4052 elapsed * 1000.0,
4048 strong_roots * 1000.0, (strong_roots*100.0/elapsed), 4053 strong_roots * 1000.0, (strong_roots*100.0/elapsed),
4049 term * 1000.0, (term*100.0/elapsed), 4054 term * 1000.0, (term*100.0/elapsed),
4050 pss.term_attempts()); 4055 pss.term_attempts());
4051 size_t total_waste = pss.alloc_buffer_waste() + pss.undo_waste(); 4056 size_t total_waste = pss.alloc_buffer_waste() + pss.undo_waste();
4057 (pss.undo_waste() * HeapWordSize) / K); 4062 (pss.undo_waste() * HeapWordSize) / K);
4058 } 4063 }
4059 4064
4060 assert(pss.refs_to_scan() == 0, "Task queue should be empty"); 4065 assert(pss.refs_to_scan() == 0, "Task queue should be empty");
4061 assert(pss.overflowed_refs_to_scan() == 0, "Overflow queue should be empty"); 4066 assert(pss.overflowed_refs_to_scan() == 0, "Overflow queue should be empty");
4067 double end_time_ms = os::elapsedTime() * 1000.0;
4068 _g1h->g1_policy()->record_gc_worker_end_time(i, end_time_ms);
4062 } 4069 }
4063 }; 4070 };
4064 4071
4065 // *** Common G1 Evacuation Stuff 4072 // *** Common G1 Evacuation Stuff
4066 4073