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comparison src/share/vm/gc_implementation/parallelScavenge/psMarkSweep.cpp @ 4872:aa3d708d67c4

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7141200: log some interesting information in ring buffers for crashes Reviewed-by: kvn, jrose, kevinw, brutisso, twisti, jmasa
author never
date Wed, 01 Feb 2012 07:59:01 -0800
parents e7dead7e90af
children ab4422d0ed59
comparison
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4871:f067b4e0e04b 4872:aa3d708d67c4
1 /* 1 /*
2 * Copyright (c) 2001, 2011, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
130 // We need to track unique mark sweep invocations as well. 130 // We need to track unique mark sweep invocations as well.
131 _total_invocations++; 131 _total_invocations++;
132 132
133 AdaptiveSizePolicyOutput(size_policy, heap->total_collections()); 133 AdaptiveSizePolicyOutput(size_policy, heap->total_collections());
134 134
135 if (PrintHeapAtGC) { 135 heap->print_heap_before_gc();
136 Universe::print_heap_before_gc();
137 }
138 136
139 // Fill in TLABs 137 // Fill in TLABs
140 heap->accumulate_statistics_all_tlabs(); 138 heap->accumulate_statistics_all_tlabs();
141 heap->ensure_parsability(true); // retire TLABs 139 heap->ensure_parsability(true); // retire TLABs
142 140
375 perm_gen->object_space()->check_mangled_unused_area_complete(); 373 perm_gen->object_space()->check_mangled_unused_area_complete();
376 } 374 }
377 375
378 NOT_PRODUCT(ref_processor()->verify_no_references_recorded()); 376 NOT_PRODUCT(ref_processor()->verify_no_references_recorded());
379 377
380 if (PrintHeapAtGC) { 378 heap->print_heap_after_gc();
381 Universe::print_heap_after_gc();
382 }
383 379
384 heap->post_full_gc_dump(); 380 heap->post_full_gc_dump();
385 381
386 #ifdef TRACESPINNING 382 #ifdef TRACESPINNING
387 ParallelTaskTerminator::print_termination_counts(); 383 ParallelTaskTerminator::print_termination_counts();
502 _revisit_mdo_stack.clear(true); 498 _revisit_mdo_stack.clear(true);
503 } 499 }
504 500
505 void PSMarkSweep::mark_sweep_phase1(bool clear_all_softrefs) { 501 void PSMarkSweep::mark_sweep_phase1(bool clear_all_softrefs) {
506 // Recursively traverse all live objects and mark them 502 // Recursively traverse all live objects and mark them
507 EventMark m("1 mark object");
508 TraceTime tm("phase 1", PrintGCDetails && Verbose, true, gclog_or_tty); 503 TraceTime tm("phase 1", PrintGCDetails && Verbose, true, gclog_or_tty);
509 trace(" 1"); 504 trace(" 1");
510 505
511 ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap(); 506 ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap();
512 assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "Sanity"); 507 assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "Sanity");
561 assert(_marking_stack.is_empty(), "stack should be empty by now"); 556 assert(_marking_stack.is_empty(), "stack should be empty by now");
562 } 557 }
563 558
564 559
565 void PSMarkSweep::mark_sweep_phase2() { 560 void PSMarkSweep::mark_sweep_phase2() {
566 EventMark m("2 compute new addresses");
567 TraceTime tm("phase 2", PrintGCDetails && Verbose, true, gclog_or_tty); 561 TraceTime tm("phase 2", PrintGCDetails && Verbose, true, gclog_or_tty);
568 trace("2"); 562 trace("2");
569 563
570 // Now all live objects are marked, compute the new object addresses. 564 // Now all live objects are marked, compute the new object addresses.
571 565
606 }; 600 };
607 static PSAlwaysTrueClosure always_true; 601 static PSAlwaysTrueClosure always_true;
608 602
609 void PSMarkSweep::mark_sweep_phase3() { 603 void PSMarkSweep::mark_sweep_phase3() {
610 // Adjust the pointers to reflect the new locations 604 // Adjust the pointers to reflect the new locations
611 EventMark m("3 adjust pointers");
612 TraceTime tm("phase 3", PrintGCDetails && Verbose, true, gclog_or_tty); 605 TraceTime tm("phase 3", PrintGCDetails && Verbose, true, gclog_or_tty);
613 trace("3"); 606 trace("3");
614 607
615 ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap(); 608 ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap();
616 assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "Sanity"); 609 assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "Sanity");