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comparison src/share/vm/runtime/mutexLocker.hpp @ 4837:eff609af17d7

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7127706: G1: re-enable survivors during the initial-mark pause Summary: Re-enable survivors during the initial-mark pause. Afterwards, the concurrent marking threads have to scan them and mark everything reachable from them. The next GC will have to wait for the survivors to be scanned. Reviewed-by: brutisso, johnc
author tonyp
date Wed, 25 Jan 2012 12:58:23 -0500
parents f08d439fab8c
children 0a10d80352d5
comparison
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4836:d30fa85f9994 4837:eff609af17d7
1 /* 1 /*
2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 1997, 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.
113 extern Mutex* ExceptionCache_lock; // a lock used to synchronize exception cache updates 113 extern Mutex* ExceptionCache_lock; // a lock used to synchronize exception cache updates
114 extern Mutex* OsrList_lock; // a lock used to serialize access to OSR queues 114 extern Mutex* OsrList_lock; // a lock used to serialize access to OSR queues
115 115
116 #ifndef PRODUCT 116 #ifndef PRODUCT
117 extern Mutex* FullGCALot_lock; // a lock to make FullGCALot MT safe 117 extern Mutex* FullGCALot_lock; // a lock to make FullGCALot MT safe
118 #endif 118 #endif // PRODUCT
119 extern Mutex* Debug1_lock; // A bunch of pre-allocated locks that can be used for tracing 119 extern Mutex* Debug1_lock; // A bunch of pre-allocated locks that can be used for tracing
120 extern Mutex* Debug2_lock; // down synchronization related bugs! 120 extern Mutex* Debug2_lock; // down synchronization related bugs!
121 extern Mutex* Debug3_lock; 121 extern Mutex* Debug3_lock;
122 122
123 extern Mutex* RawMonitor_lock; 123 extern Mutex* RawMonitor_lock;
127 extern Mutex* OopMapCacheAlloc_lock; // protects allocation of oop_map caches 127 extern Mutex* OopMapCacheAlloc_lock; // protects allocation of oop_map caches
128 128
129 extern Mutex* FreeList_lock; // protects the free region list during safepoints 129 extern Mutex* FreeList_lock; // protects the free region list during safepoints
130 extern Monitor* SecondaryFreeList_lock; // protects the secondary free region list 130 extern Monitor* SecondaryFreeList_lock; // protects the secondary free region list
131 extern Mutex* OldSets_lock; // protects the old region sets 131 extern Mutex* OldSets_lock; // protects the old region sets
132 extern Monitor* RootRegionScan_lock; // used to notify that the CM threads have finished scanning the IM snapshot regions
132 extern Mutex* MMUTracker_lock; // protects the MMU 133 extern Mutex* MMUTracker_lock; // protects the MMU
133 // tracker data structures 134 // tracker data structures
134 extern Mutex* HotCardCache_lock; // protects the hot card cache 135 extern Mutex* HotCardCache_lock; // protects the hot card cache
135 136
136 extern Mutex* Management_lock; // a lock used to serialize JVM management 137 extern Mutex* Management_lock; // a lock used to serialize JVM management