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8242083: Shenandoah: split "Prepare Evacuation" tracking into cset/freeset counters

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Reviewed-by: rkennke
This commit is contained in:
Aleksey Shipilev 2020-04-03 13:58:32 +02:00
parent 218d0f71cf
commit 21d5f88f40
2 changed files with 10 additions and 6 deletions
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10
src/hotspot/share/gc/shenandoah/shenandoahHeap.cpp
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@ -1501,14 +1501,15 @@ void ShenandoahHeap::op_final_mark() {
}
{
ShenandoahGCPhase phase(ShenandoahPhaseTimings::prepare_evac);
ShenandoahGCPhase phase(ShenandoahPhaseTimings::choose_cset);
ShenandoahHeapLocker locker(lock());
_collection_set->clear();
_free_set->clear();
heuristics()->choose_collection_set(_collection_set);
}
{
ShenandoahGCPhase phase(ShenandoahPhaseTimings::final_rebuild_freeset);
ShenandoahHeapLocker locker(lock());
_free_set->rebuild();
}
@ -2512,6 +2513,7 @@ void ShenandoahHeap::op_final_updaterefs() {
}
{
ShenandoahGCPhase phase(ShenandoahPhaseTimings::final_update_refs_rebuild_freeset);
ShenandoahHeapLocker locker(lock());
_free_set->rebuild();
}

6
src/hotspot/share/gc/shenandoah/shenandoahPhaseTimings.hpp
View File

@ -82,7 +82,8 @@ class outputStream;
f(complete_liveness, " Complete Liveness") \
f(retire_tlabs, " Retire TLABs") \
f(sync_pinned, " Sync Pinned") \
f(prepare_evac, " Prepare Evacuation") \
f(choose_cset, " Choose Collection Set") \
f(final_rebuild_freeset, " Rebuild Free Set") \
f(init_evac, " Initial Evacuation") \
SHENANDOAH_GC_PAR_PHASE_DO(evac_, " E: ", f) \
\
@ -97,7 +98,8 @@ class outputStream;
f(final_update_refs_roots, " Update Roots") \
SHENANDOAH_GC_PAR_PHASE_DO(final_update_, " UR: ", f) \
f(final_update_refs_sync_pinned, " Sync Pinned") \
f(final_update_refs_trash_cset, " Trash CSet") \
f(final_update_refs_trash_cset, " Trash Collection Set") \
f(final_update_refs_rebuild_freeset, " Rebuild Free Set") \
\
f(degen_gc_gross, "Pause Degenerated GC (G)") \
f(degen_gc, "Pause Degenerated GC (N)") \