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src/os/aix/vm/globals_aix.hpp
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rev 7960 : 8075506: aix: improve handling of native memory
@@ -1,8 +1,8 @@
/*
- * Copyright (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved.
- * Copyright 2012, 2013 SAP AG. All rights reserved.
+ * Copyright (c) 2005, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright 2012, 2015 SAP AG. 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.
@@ -29,10 +29,14 @@
//
// Defines Aix specific flags. They are not available on other platforms.
//
#define RUNTIME_OS_FLAGS(develop, develop_pd, product, product_pd, diagnostic, notproduct) \
\
+ /* Use 64K pages for virtual memory (shmat). */ \
+ product(bool, Use64KPages, true, \
+ "Use 64K pages if available.") \
+ \
/* If UseLargePages == true allow or deny usage of 16M pages. 16M pages are */ \
/* a scarce resource and there may be situations where we do not want the VM */ \
/* to run with 16M pages. (Will fall back to 64K pages). */ \
product_pd(bool, Use16MPages, \
"Use 16M pages if available.") \
@@ -53,11 +57,11 @@
//
// Defines Aix-specific default values. The flags are available on all
// platforms, but they may have different default values on other platforms.
//
-define_pd_global(bool, UseLargePages, true);
+define_pd_global(bool, UseLargePages, false);
define_pd_global(bool, UseLargePagesIndividualAllocation, false);
define_pd_global(bool, UseOSErrorReporting, false);
define_pd_global(bool, UseThreadPriorities, true) ;
#endif // OS_AIX_VM_GLOBALS_AIX_HPP
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