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8168904: Initialize and reset G1 phase times to zero

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Reviewed-by: sjohanss, jprovino
This commit is contained in:
Erik Helin 2016-10-28 15:50:09 +02:00
parent 902650f058
commit db9932fb37
2 changed files with 38 additions and 3 deletions
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40
hotspot/src/share/vm/gc/g1/g1GCPhaseTimes.cpp
View File

@ -36,7 +36,9 @@
static const char* Indents[5] = {"", " ", " ", " ", " "};
G1GCPhaseTimes::G1GCPhaseTimes(uint max_gc_threads) :
_max_gc_threads(max_gc_threads)
_max_gc_threads(max_gc_threads),
_gc_start_counter(0),
_gc_pause_time_ms(0.0)
{
assert(max_gc_threads > 0, "Must have some GC threads");
@ -95,13 +97,40 @@ G1GCPhaseTimes::G1GCPhaseTimes(uint max_gc_threads) :
_gc_par_phases[NonYoungFreeCSet] = new WorkerDataArray<double>(max_gc_threads, "Non-Young Free Collection Set (ms):");
_gc_par_phases[PreserveCMReferents] = new WorkerDataArray<double>(max_gc_threads, "Parallel Preserve CM Refs (ms):");
reset();
}
void G1GCPhaseTimes::note_gc_start() {
_gc_start_counter = os::elapsed_counter();
void G1GCPhaseTimes::reset() {
_cur_collection_par_time_ms = 0.0;
_cur_collection_code_root_fixup_time_ms = 0.0;
_cur_strong_code_root_purge_time_ms = 0.0;
_cur_evac_fail_recalc_used = 0.0;
_cur_evac_fail_restore_remsets = 0.0;
_cur_evac_fail_remove_self_forwards = 0.0;
_cur_string_dedup_fixup_time_ms = 0.0;
_cur_clear_ct_time_ms = 0.0;
_cur_expand_heap_time_ms = 0.0;
_cur_ref_proc_time_ms = 0.0;
_cur_ref_enq_time_ms = 0.0;
_cur_collection_start_sec = 0.0;
_root_region_scan_wait_time_ms = 0.0;
_external_accounted_time_ms = 0.0;
_recorded_clear_claimed_marks_time_ms = 0.0;
_recorded_young_cset_choice_time_ms = 0.0;
_recorded_non_young_cset_choice_time_ms = 0.0;
_recorded_redirty_logged_cards_time_ms = 0.0;
_recorded_preserve_cm_referents_time_ms = 0.0;
_recorded_merge_pss_time_ms = 0.0;
_recorded_total_free_cset_time_ms = 0.0;
_recorded_serial_free_cset_time_ms = 0.0;
_cur_fast_reclaim_humongous_time_ms = 0.0;
_cur_fast_reclaim_humongous_register_time_ms = 0.0;
_cur_fast_reclaim_humongous_total = 0;
_cur_fast_reclaim_humongous_candidates = 0;
_cur_fast_reclaim_humongous_reclaimed = 0;
_cur_verify_before_time_ms = 0.0;
_cur_verify_after_time_ms = 0.0;
for (int i = 0; i < GCParPhasesSentinel; i++) {
if (_gc_par_phases[i] != NULL) {
@ -110,6 +139,11 @@ void G1GCPhaseTimes::note_gc_start() {
}
}
void G1GCPhaseTimes::note_gc_start() {
_gc_start_counter = os::elapsed_counter();
reset();
}
#define ASSERT_PHASE_UNINITIALIZED(phase) \
assert(_gc_par_phases[phase]->get(i) == uninitialized, "Phase " #phase " reported for thread that was not started");

1
hotspot/src/share/vm/gc/g1/g1GCPhaseTimes.hpp
View File

@ -129,6 +129,7 @@ class G1GCPhaseTimes : public CHeapObj<mtGC> {
double worker_time(GCParPhases phase, uint worker);
void note_gc_end();
void reset();
template <class T>
void details(T* phase, const char* indent);