Mercurial > hg > graal-compiler

comparison src/share/vm/memory/genMarkSweep.cpp @ 1387:0bfd3fb24150

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. Summary: Ensure a full GC that clears SoftReferences before throwing an out-of-memory Reviewed-by: ysr, jcoomes
author jmasa
date Tue, 13 Apr 2010 13:52:10 -0700
parents 2a1472c30599
children c18cbe5936b8
comparison
equal deleted inserted replaced
1361:6b73e879f1c2 1387:0bfd3fb24150
1 /* 1 /*
2 * Copyright 2001-2009 Sun Microsystems, Inc. All Rights Reserved. 2 * Copyright 2001-2010 Sun Microsystems, Inc. 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.
27 27
28 void GenMarkSweep::invoke_at_safepoint(int level, ReferenceProcessor* rp, 28 void GenMarkSweep::invoke_at_safepoint(int level, ReferenceProcessor* rp,
29 bool clear_all_softrefs) { 29 bool clear_all_softrefs) {
30 assert(SafepointSynchronize::is_at_safepoint(), "must be at a safepoint"); 30 assert(SafepointSynchronize::is_at_safepoint(), "must be at a safepoint");
31 31
32 GenCollectedHeap* gch = GenCollectedHeap::heap();
33 #ifdef ASSERT
34 if (gch->collector_policy()->should_clear_all_soft_refs()) {
35 assert(clear_all_softrefs, "Policy should have been checked earlier");
36 }
37 #endif
38
32 // hook up weak ref data so it can be used during Mark-Sweep 39 // hook up weak ref data so it can be used during Mark-Sweep
33 assert(ref_processor() == NULL, "no stomping"); 40 assert(ref_processor() == NULL, "no stomping");
34 assert(rp != NULL, "should be non-NULL"); 41 assert(rp != NULL, "should be non-NULL");
35 _ref_processor = rp; 42 _ref_processor = rp;
36 rp->setup_policy(clear_all_softrefs); 43 rp->setup_policy(clear_all_softrefs);
42 CodeCache::gc_prologue(); 49 CodeCache::gc_prologue();
43 Threads::gc_prologue(); 50 Threads::gc_prologue();
44 51
45 // Increment the invocation count for the permanent generation, since it is 52 // Increment the invocation count for the permanent generation, since it is
46 // implicitly collected whenever we do a full mark sweep collection. 53 // implicitly collected whenever we do a full mark sweep collection.
47 GenCollectedHeap* gch = GenCollectedHeap::heap();
48 gch->perm_gen()->stat_record()->invocations++; 54 gch->perm_gen()->stat_record()->invocations++;
49 55
50 // Capture heap size before collection for printing. 56 // Capture heap size before collection for printing.
51 size_t gch_prev_used = gch->used(); 57 size_t gch_prev_used = gch->used();
52 58