< prev index next >
src/share/vm/gc/parallel/psMarkSweep.cpp
Print this page
*** 39,53 ****
#include "gc/shared/gcHeapSummary.hpp"
#include "gc/shared/gcId.hpp"
#include "gc/shared/gcLocker.inline.hpp"
#include "gc/shared/gcTimer.hpp"
#include "gc/shared/gcTrace.hpp"
! #include "gc/shared/gcTraceTime.hpp"
#include "gc/shared/isGCActiveMark.hpp"
#include "gc/shared/referencePolicy.hpp"
#include "gc/shared/referenceProcessor.hpp"
#include "gc/shared/spaceDecorator.hpp"
#include "oops/oop.inline.hpp"
#include "runtime/biasedLocking.hpp"
#include "runtime/fprofiler.hpp"
#include "runtime/safepoint.hpp"
#include "runtime/vmThread.hpp"
--- 39,54 ----
#include "gc/shared/gcHeapSummary.hpp"
#include "gc/shared/gcId.hpp"
#include "gc/shared/gcLocker.inline.hpp"
#include "gc/shared/gcTimer.hpp"
#include "gc/shared/gcTrace.hpp"
! #include "gc/shared/gcTraceTime.inline.hpp"
#include "gc/shared/isGCActiveMark.hpp"
#include "gc/shared/referencePolicy.hpp"
#include "gc/shared/referenceProcessor.hpp"
#include "gc/shared/spaceDecorator.hpp"
+ #include "logging/log.hpp"
#include "oops/oop.inline.hpp"
#include "runtime/biasedLocking.hpp"
#include "runtime/fprofiler.hpp"
#include "runtime/safepoint.hpp"
#include "runtime/vmThread.hpp"
*** 135,156 ****
heap->record_gen_tops_before_GC();
// We need to track unique mark sweep invocations as well.
_total_invocations++;
- AdaptiveSizePolicyOutput(size_policy, heap->total_collections());
-
heap->print_heap_before_gc();
heap->trace_heap_before_gc(_gc_tracer);
// Fill in TLABs
heap->accumulate_statistics_all_tlabs();
heap->ensure_parsability(true); // retire TLABs
if (VerifyBeforeGC && heap->total_collections() >= VerifyGCStartAt) {
HandleMark hm; // Discard invalid handles created during verification
! Universe::verify(" VerifyBeforeGC:");
}
// Verify object start arrays
if (VerifyObjectStartArray &&
VerifyBeforeGC) {
--- 136,155 ----
heap->record_gen_tops_before_GC();
// We need to track unique mark sweep invocations as well.
_total_invocations++;
heap->print_heap_before_gc();
heap->trace_heap_before_gc(_gc_tracer);
// Fill in TLABs
heap->accumulate_statistics_all_tlabs();
heap->ensure_parsability(true); // retire TLABs
if (VerifyBeforeGC && heap->total_collections() >= VerifyGCStartAt) {
HandleMark hm; // Discard invalid handles created during verification
! Universe::verify("Before GC");
}
// Verify object start arrays
if (VerifyObjectStartArray &&
VerifyBeforeGC) {
*** 165,176 ****
bool young_gen_empty;
{
HandleMark hm;
! TraceCPUTime tcpu(PrintGCDetails, true, gclog_or_tty);
! GCTraceTime t1(GCCauseString("Full GC", gc_cause), PrintGC, !PrintGCDetails, NULL);
TraceCollectorStats tcs(counters());
TraceMemoryManagerStats tms(true /* Full GC */,gc_cause);
if (TraceOldGenTime) accumulated_time()->start();
--- 164,175 ----
bool young_gen_empty;
{
HandleMark hm;
! GCTraceCPUTime tcpu;
! GCTraceTime(Info, gc) t("Pause Full", NULL, gc_cause, true);
TraceCollectorStats tcs(counters());
TraceMemoryManagerStats tms(true /* Full GC */,gc_cause);
if (TraceOldGenTime) accumulated_time()->start();
*** 178,194 ****
size_policy->major_collection_begin();
CodeCache::gc_prologue();
BiasedLocking::preserve_marks();
- // Capture heap size before collection for printing.
- size_t prev_used = heap->used();
-
// Capture metadata size before collection for sizing.
size_t metadata_prev_used = MetaspaceAux::used_bytes();
- // For PrintGCDetails
size_t old_gen_prev_used = old_gen->used_in_bytes();
size_t young_gen_prev_used = young_gen->used_in_bytes();
allocate_stacks();
--- 177,189 ----
*** 264,284 ****
// Let the size policy know we're done
size_policy->major_collection_end(old_gen->used_in_bytes(), gc_cause);
if (UseAdaptiveSizePolicy) {
! if (PrintAdaptiveSizePolicy) {
! gclog_or_tty->print("AdaptiveSizeStart: ");
! gclog_or_tty->stamp();
! gclog_or_tty->print_cr(" collection: %d ",
! heap->total_collections());
! if (Verbose) {
! gclog_or_tty->print("old_gen_capacity: " SIZE_FORMAT
! " young_gen_capacity: " SIZE_FORMAT,
old_gen->capacity_in_bytes(), young_gen->capacity_in_bytes());
- }
- }
// Don't check if the size_policy is ready here. Let
// the size_policy check that internally.
if (UseAdaptiveGenerationSizePolicyAtMajorCollection &&
AdaptiveSizePolicy::should_update_promo_stats(gc_cause)) {
--- 259,271 ----
// Let the size policy know we're done
size_policy->major_collection_end(old_gen->used_in_bytes(), gc_cause);
if (UseAdaptiveSizePolicy) {
! log_debug(gc, ergo)("AdaptiveSizeStart: collection: %d ", heap->total_collections());
! log_trace(gc, ergo)("old_gen_capacity: " SIZE_FORMAT " young_gen_capacity: " SIZE_FORMAT,
old_gen->capacity_in_bytes(), young_gen->capacity_in_bytes());
// Don't check if the size_policy is ready here. Let
// the size_policy check that internally.
if (UseAdaptiveGenerationSizePolicyAtMajorCollection &&
AdaptiveSizePolicy::should_update_promo_stats(gc_cause)) {
*** 331,344 ****
heap->resize_old_gen(size_policy->calculated_old_free_size_in_bytes());
heap->resize_young_gen(size_policy->calculated_eden_size_in_bytes(),
size_policy->calculated_survivor_size_in_bytes());
}
! if (PrintAdaptiveSizePolicy) {
! gclog_or_tty->print_cr("AdaptiveSizeStop: collection: %d ",
! heap->total_collections());
! }
}
if (UsePerfData) {
heap->gc_policy_counters()->update_counters();
heap->gc_policy_counters()->update_old_capacity(
--- 318,328 ----
heap->resize_old_gen(size_policy->calculated_old_free_size_in_bytes());
heap->resize_young_gen(size_policy->calculated_eden_size_in_bytes(),
size_policy->calculated_survivor_size_in_bytes());
}
! log_debug(gc, ergo)("AdaptiveSizeStop: collection: %d ", heap->total_collections());
}
if (UsePerfData) {
heap->gc_policy_counters()->update_counters();
heap->gc_policy_counters()->update_old_capacity(
*** 352,382 ****
// We collected the heap, recalculate the metaspace capacity
MetaspaceGC::compute_new_size();
if (TraceOldGenTime) accumulated_time()->stop();
- if (PrintGC) {
- if (PrintGCDetails) {
- // Don't print a GC timestamp here. This is after the GC so
- // would be confusing.
young_gen->print_used_change(young_gen_prev_used);
old_gen->print_used_change(old_gen_prev_used);
- }
- heap->print_heap_change(prev_used);
- if (PrintGCDetails) {
MetaspaceAux::print_metaspace_change(metadata_prev_used);
- }
- }
// Track memory usage and detect low memory
MemoryService::track_memory_usage();
heap->update_counters();
}
if (VerifyAfterGC && heap->total_collections() >= VerifyGCStartAt) {
HandleMark hm; // Discard invalid handles created during verification
! Universe::verify(" VerifyAfterGC:");
}
// Re-verify object start arrays
if (VerifyObjectStartArray &&
VerifyAfterGC) {
--- 336,357 ----
// We collected the heap, recalculate the metaspace capacity
MetaspaceGC::compute_new_size();
if (TraceOldGenTime) accumulated_time()->stop();
young_gen->print_used_change(young_gen_prev_used);
old_gen->print_used_change(old_gen_prev_used);
MetaspaceAux::print_metaspace_change(metadata_prev_used);
// Track memory usage and detect low memory
MemoryService::track_memory_usage();
heap->update_counters();
}
if (VerifyAfterGC && heap->total_collections() >= VerifyGCStartAt) {
HandleMark hm; // Discard invalid handles created during verification
! Universe::verify("After GC");
}
// Re-verify object start arrays
if (VerifyObjectStartArray &&
VerifyAfterGC) {
*** 396,405 ****
--- 371,382 ----
#ifdef TRACESPINNING
ParallelTaskTerminator::print_termination_counts();
#endif
+ AdaptiveSizePolicyOutput::print(size_policy, heap->total_collections());
+
_gc_timer->register_gc_end();
_gc_tracer->report_gc_end(_gc_timer->gc_end(), _gc_timer->time_partitions());
return true;
*** 441,461 ****
const size_t new_young_size = young_gen->capacity_in_bytes() - absorb_size;
if (new_young_size < young_gen->min_gen_size()) {
return false; // Respect young gen minimum size.
}
! if (TraceAdaptiveGCBoundary && Verbose) {
! gclog_or_tty->print(" absorbing " SIZE_FORMAT "K: "
"eden " SIZE_FORMAT "K->" SIZE_FORMAT "K "
"from " SIZE_FORMAT "K, to " SIZE_FORMAT "K "
"young_gen " SIZE_FORMAT "K->" SIZE_FORMAT "K ",
absorb_size / K,
eden_capacity / K, (eden_capacity - absorb_size) / K,
young_gen->from_space()->used_in_bytes() / K,
young_gen->to_space()->used_in_bytes() / K,
young_gen->capacity_in_bytes() / K, new_young_size / K);
- }
// Fill the unused part of the old gen.
MutableSpace* const old_space = old_gen->object_space();
HeapWord* const unused_start = old_space->top();
size_t const unused_words = pointer_delta(old_space->end(), unused_start);
--- 418,436 ----
const size_t new_young_size = young_gen->capacity_in_bytes() - absorb_size;
if (new_young_size < young_gen->min_gen_size()) {
return false; // Respect young gen minimum size.
}
! log_trace(heap, ergo)(" absorbing " SIZE_FORMAT "K: "
"eden " SIZE_FORMAT "K->" SIZE_FORMAT "K "
"from " SIZE_FORMAT "K, to " SIZE_FORMAT "K "
"young_gen " SIZE_FORMAT "K->" SIZE_FORMAT "K ",
absorb_size / K,
eden_capacity / K, (eden_capacity - absorb_size) / K,
young_gen->from_space()->used_in_bytes() / K,
young_gen->to_space()->used_in_bytes() / K,
young_gen->capacity_in_bytes() / K, new_young_size / K);
// Fill the unused part of the old gen.
MutableSpace* const old_space = old_gen->object_space();
HeapWord* const unused_start = old_space->top();
size_t const unused_words = pointer_delta(old_space->end(), unused_start);
*** 515,525 ****
_objarray_stack.clear(true);
}
void PSMarkSweep::mark_sweep_phase1(bool clear_all_softrefs) {
// Recursively traverse all live objects and mark them
! GCTraceTime tm("phase 1", PrintGCDetails && Verbose, true, _gc_timer);
ParallelScavengeHeap* heap = ParallelScavengeHeap::heap();
// Need to clear claim bits before the tracing starts.
ClassLoaderDataGraph::clear_claimed_marks();
--- 490,500 ----
_objarray_stack.clear(true);
}
void PSMarkSweep::mark_sweep_phase1(bool clear_all_softrefs) {
// Recursively traverse all live objects and mark them
! GCTraceTime(Trace, gc) tm("Phase 1: Mark live objects", _gc_timer);
ParallelScavengeHeap* heap = ParallelScavengeHeap::heap();
// Need to clear claim bits before the tracing starts.
ClassLoaderDataGraph::clear_claimed_marks();
*** 574,584 ****
_gc_tracer->report_object_count_after_gc(is_alive_closure());
}
void PSMarkSweep::mark_sweep_phase2() {
! GCTraceTime tm("phase 2", PrintGCDetails && Verbose, true, _gc_timer);
// Now all live objects are marked, compute the new object addresses.
// It is not required that we traverse spaces in the same order in
// phase2, phase3 and phase4, but the ValidateMarkSweep live oops
--- 549,559 ----
_gc_tracer->report_object_count_after_gc(is_alive_closure());
}
void PSMarkSweep::mark_sweep_phase2() {
! GCTraceTime(Trace, gc) tm("Phase 2: Compute new object addresses", _gc_timer);
// Now all live objects are marked, compute the new object addresses.
// It is not required that we traverse spaces in the same order in
// phase2, phase3 and phase4, but the ValidateMarkSweep live oops
*** 601,611 ****
};
static PSAlwaysTrueClosure always_true;
void PSMarkSweep::mark_sweep_phase3() {
// Adjust the pointers to reflect the new locations
! GCTraceTime tm("phase 3", PrintGCDetails && Verbose, true, _gc_timer);
ParallelScavengeHeap* heap = ParallelScavengeHeap::heap();
PSYoungGen* young_gen = heap->young_gen();
PSOldGen* old_gen = heap->old_gen();
--- 576,586 ----
};
static PSAlwaysTrueClosure always_true;
void PSMarkSweep::mark_sweep_phase3() {
// Adjust the pointers to reflect the new locations
! GCTraceTime(Trace, gc) tm("Phase 3: Adjust pointers", _gc_timer);
ParallelScavengeHeap* heap = ParallelScavengeHeap::heap();
PSYoungGen* young_gen = heap->young_gen();
PSOldGen* old_gen = heap->old_gen();
*** 641,651 ****
old_gen->adjust_pointers();
}
void PSMarkSweep::mark_sweep_phase4() {
EventMark m("4 compact heap");
! GCTraceTime tm("phase 4", PrintGCDetails && Verbose, true, _gc_timer);
// All pointers are now adjusted, move objects accordingly
ParallelScavengeHeap* heap = ParallelScavengeHeap::heap();
PSYoungGen* young_gen = heap->young_gen();
--- 616,626 ----
old_gen->adjust_pointers();
}
void PSMarkSweep::mark_sweep_phase4() {
EventMark m("4 compact heap");
! GCTraceTime(Trace, gc) tm("Phase 4: Move objects", _gc_timer);
// All pointers are now adjusted, move objects accordingly
ParallelScavengeHeap* heap = ParallelScavengeHeap::heap();
PSYoungGen* young_gen = heap->young_gen();
< prev index next >