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8236851: Shenandoah: More details in Traversal GC event messages

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Reviewed-by: shade
This commit is contained in:
Roman Kennke 2020-01-10 12:42:30 +01:00
parent 4f35b4a65c
commit c2b462cf02
2 changed files with 51 additions and 3 deletions
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51
src/hotspot/share/gc/shenandoah/shenandoahHeap.cpp
View File

@ -2805,7 +2805,7 @@ void ShenandoahHeap::entry_init_traversal() {
ShenandoahGCPhase total_phase(ShenandoahPhaseTimings::total_pause);
ShenandoahGCPhase phase(ShenandoahPhaseTimings::init_traversal_gc);
static const char* msg = "Pause Init Traversal";
static const char* msg = init_traversal_event_message();
GCTraceTime(Info, gc) time(msg, gc_timer());
EventMark em("%s", msg);
@ -2820,7 +2820,7 @@ void ShenandoahHeap::entry_final_traversal() {
ShenandoahGCPhase total_phase(ShenandoahPhaseTimings::total_pause);
ShenandoahGCPhase phase(ShenandoahPhaseTimings::final_traversal_gc);
static const char* msg = "Pause Final Traversal";
static const char* msg = final_traversal_event_message();
GCTraceTime(Info, gc) time(msg, gc_timer());
EventMark em("%s", msg);
@ -2972,7 +2972,7 @@ void ShenandoahHeap::entry_preclean() {
}
void ShenandoahHeap::entry_traversal() {
static const char* msg = "Concurrent traversal";
static const char* msg = conc_traversal_event_message();
GCTraceTime(Info, gc) time(msg, NULL, GCCause::_no_gc, true);
EventMark em("%s", msg);
@ -3141,6 +3141,51 @@ const char* ShenandoahHeap::conc_mark_event_message() const {
}
}
const char* ShenandoahHeap::init_traversal_event_message() const {
bool proc_refs = process_references();
bool unload_cls = unload_classes();
if (proc_refs && unload_cls) {
return "Pause Init Traversal (process weakrefs) (unload classes)";
} else if (proc_refs) {
return "Pause Init Traversal (process weakrefs)";
} else if (unload_cls) {
return "Pause Init Traversal (unload classes)";
} else {
return "Pause Init Traversal";
}
}
const char* ShenandoahHeap::final_traversal_event_message() const {
bool proc_refs = process_references();
bool unload_cls = unload_classes();
if (proc_refs && unload_cls) {
return "Pause Final Traversal (process weakrefs) (unload classes)";
} else if (proc_refs) {
return "Pause Final Traversal (process weakrefs)";
} else if (unload_cls) {
return "Pause Final Traversal (unload classes)";
} else {
return "Pause Final Traversal";
}
}
const char* ShenandoahHeap::conc_traversal_event_message() const {
bool proc_refs = process_references();
bool unload_cls = unload_classes();
if (proc_refs && unload_cls) {
return "Concurrent Traversal (process weakrefs) (unload classes)";
} else if (proc_refs) {
return "Concurrent Traversal (process weakrefs)";
} else if (unload_cls) {
return "Concurrent Traversal (unload classes)";
} else {
return "Concurrent Traversal";
}
}
const char* ShenandoahHeap::degen_event_message(ShenandoahDegenPoint point) const {
switch (point) {
case _degenerated_unset:

3
src/hotspot/share/gc/shenandoah/shenandoahHeap.hpp
View File

@ -438,6 +438,9 @@ private:
const char* init_mark_event_message() const;
const char* final_mark_event_message() const;
const char* conc_mark_event_message() const;
const char* init_traversal_event_message() const;
const char* final_traversal_event_message() const;
const char* conc_traversal_event_message() const;
const char* degen_event_message(ShenandoahDegenPoint point) const;
// ---------- GC subsystems