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8149650: Create a trace event for G1 heap region type transitions

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Reviewed-by: jwilhelm, sjohanss
This commit is contained in:
David Lindholm 2016-02-12 09:19:10 +01:00
parent 7323d69771
commit 8d8189b9e5
10 changed files with 283 additions and 6 deletions
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43
hotspot/src/share/vm/gc/g1/heapRegion.cpp
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@ -26,11 +26,13 @@
#include "code/nmethod.hpp"
#include "gc/g1/g1BlockOffsetTable.inline.hpp"
#include "gc/g1/g1CollectedHeap.inline.hpp"
#include "gc/g1/g1HeapRegionTraceType.hpp"
#include "gc/g1/g1OopClosures.inline.hpp"
#include "gc/g1/heapRegion.inline.hpp"
#include "gc/g1/heapRegionBounds.inline.hpp"
#include "gc/g1/heapRegionManager.inline.hpp"
#include "gc/g1/heapRegionRemSet.hpp"
#include "gc/g1/heapRegionTracer.hpp"
#include "gc/shared/genOopClosures.inline.hpp"
#include "gc/shared/liveRange.hpp"
#include "gc/shared/space.inline.hpp"
@ -212,10 +214,41 @@ void HeapRegion::calc_gc_efficiency() {
_gc_efficiency = (double) reclaimable_bytes() / region_elapsed_time_ms;
}
void HeapRegion::set_free() {
report_region_type_change(G1HeapRegionTraceType::Free);
_type.set_free();
}
void HeapRegion::set_eden() {
report_region_type_change(G1HeapRegionTraceType::Eden);
_type.set_eden();
}
void HeapRegion::set_eden_pre_gc() {
report_region_type_change(G1HeapRegionTraceType::Eden);
_type.set_eden_pre_gc();
}
void HeapRegion::set_survivor() {
report_region_type_change(G1HeapRegionTraceType::Survivor);
_type.set_survivor();
}
void HeapRegion::set_old() {
report_region_type_change(G1HeapRegionTraceType::Old);
_type.set_old();
}
void HeapRegion::set_archive() {
report_region_type_change(G1HeapRegionTraceType::Archive);
_type.set_archive();
}
void HeapRegion::set_starts_humongous(HeapWord* obj_top, size_t fill_size) {
assert(!is_humongous(), "sanity / pre-condition");
assert(top() == bottom(), "should be empty");
report_region_type_change(G1HeapRegionTraceType::StartsHumongous);
_type.set_starts_humongous();
_humongous_start_region = this;
@ -227,6 +260,7 @@ void HeapRegion::set_continues_humongous(HeapRegion* first_hr) {
assert(top() == bottom(), "should be empty");
assert(first_hr->is_starts_humongous(), "pre-condition");
report_region_type_change(G1HeapRegionTraceType::ContinuesHumongous);
_type.set_continues_humongous();
_humongous_start_region = first_hr;
}
@ -272,6 +306,15 @@ void HeapRegion::initialize(MemRegion mr, bool clear_space, bool mangle_space) {
record_timestamp();
}
void HeapRegion::report_region_type_change(G1HeapRegionTraceType::Type to) {
HeapRegionTracer::send_region_type_change(_hrm_index,
get_trace_type(),
to,
(uintptr_t)bottom(),
used(),
(uint)allocation_context());
}
CompactibleSpace* HeapRegion::next_compaction_space() const {
return G1CollectedHeap::heap()->next_compaction_region(this);
}