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comparison src/share/vm/gc_implementation/parallelScavenge/psTasks.cpp @ 4909:95f6641e38e0

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7144296: PS: Optimize nmethods processing Summary: Prunes scavenge roots in code list every young GC, promote objects directly pointed by the code immediately Reviewed-by: johnc, jcoomes
author iveresov
date Fri, 10 Feb 2012 17:40:20 -0800
parents bca17e38de00
children da91efe96a93
comparison
equal deleted inserted replaced
4888:3c4621be5149 4909:95f6641e38e0
1 /* 1 /*
2 * Copyright (c) 2002, 2011, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2002, 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.
49 void ScavengeRootsTask::do_it(GCTaskManager* manager, uint which) { 49 void ScavengeRootsTask::do_it(GCTaskManager* manager, uint which) {
50 assert(Universe::heap()->is_gc_active(), "called outside gc"); 50 assert(Universe::heap()->is_gc_active(), "called outside gc");
51 51
52 PSPromotionManager* pm = PSPromotionManager::gc_thread_promotion_manager(which); 52 PSPromotionManager* pm = PSPromotionManager::gc_thread_promotion_manager(which);
53 PSScavengeRootsClosure roots_closure(pm); 53 PSScavengeRootsClosure roots_closure(pm);
54 PSPromoteRootsClosure roots_to_old_closure(pm);
54 55
55 switch (_root_type) { 56 switch (_root_type) {
56 case universe: 57 case universe:
57 Universe::oops_do(&roots_closure); 58 Universe::oops_do(&roots_closure);
58 break; 59 break;
89 break; 90 break;
90 91
91 92
92 case code_cache: 93 case code_cache:
93 { 94 {
94 CodeBlobToOopClosure each_scavengable_code_blob(&roots_closure, /*do_marking=*/ true); 95 CodeBlobToOopClosure each_scavengable_code_blob(&roots_to_old_closure, /*do_marking=*/ true);
95 CodeCache::scavenge_root_nmethods_do(&each_scavengable_code_blob); 96 CodeCache::scavenge_root_nmethods_do(&each_scavengable_code_blob);
96 } 97 }
97 break; 98 break;
98 99
99 default: 100 default: