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6814437: G1: remove the _new_refs array
Summary: The per-worker _new_refs array is used to hold references that point into the collection set. It is populated during RSet updating and subsequently processed. In the event of an evacuation failure it processed again to recreate the RSets of regions in the collection set. Remove the per-worker _new_refs array by processing the references directly. Use a DirtyCardQueue to hold the cards containing the references so that the RSets of regions in the collection set can be recreated when handling an evacuation failure.
Reviewed-by: iveresov, jmasa, tonyp
author | johnc |
---|---|
date | Mon, 02 Aug 2010 12:51:43 -0700 |
parents | c18cbe5936b8 |
children | 126ea7725993 |
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# # Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. # # This code is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License version 2 only, as # published by the Free Software Foundation. # # This code is distributed in the hope that it will be useful, but WITHOUT # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License # version 2 for more details (a copy is included in the LICENSE file that # accompanied this code). # # You should have received a copy of the GNU General Public License version # 2 along with this work; if not, write to the Free Software Foundation, # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. # # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA # or visit www.oracle.com if you need additional information or have any # questions. # # # Top level gnumake file for hotspot builds # # Default is to build the both product images and construct an export dir. # The default export directory name is `pwd`/export-$(PLATFORM). # # Use: 'gnumake help' for more information. # # This makefile uses the default settings for where to find compilers and # tools, and obeys the ALT_* variable settings used by the other JDK # workspaces. # # Expected/optional make variables defined on make command line: # LP64=1 or ARCH_DATA_MODEL=64 for 64bit build # 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