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src/os/linux/vm/globals_linux.hpp@833b0f92429a (annotated)

src/os/linux/vm/globals_linux.hpp

Wed, 27 Aug 2014 08:19:12 -0400

author

zgu

date

Wed, 27 Aug 2014 08:19:12 -0400

changeset 7074

833b0f92429a

parent 5857

263f2c796d6c

child 6876

710a3c8b516e

child 8619

3a38e441474d

permissions

-rw-r--r--

8046598: Scalable Native memory tracking development
Summary: Enhance scalability of native memory tracking
Reviewed-by: coleenp, ctornqvi, gtriantafill

duke@435	1	/*
iklam@4710	2	* Copyright (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
stefank@2314	25	#ifndef OS_LINUX_VM_GLOBALS_LINUX_HPP
stefank@2314	26	#define OS_LINUX_VM_GLOBALS_LINUX_HPP
stefank@2314	27
duke@435	28	//
duke@435	29	// Defines Linux specific flags. They are not available on other platforms.
duke@435	30	//
duke@435	31	#define RUNTIME_OS_FLAGS(develop, develop_pd, product, product_pd, diagnostic, notproduct) \
iveresov@2818	32	product(bool, UseOprofile, false, \
iveresov@2818	33	"enable support for Oprofile profiler") \
iveresov@2818	34	\
iveresov@2818	35	product(bool, UseLinuxPosixThreadCPUClocks, true, \
iveresov@2818	36	"enable fast Linux Posix clocks where available") \
iveresov@2818	37	/* NB: The default value of UseLinuxPosixThreadCPUClocks may be \
iveresov@2818	38	overridden in Arguments::parse_each_vm_init_arg. */ \
iveresov@2818	39	\
iveresov@2818	40	product(bool, UseHugeTLBFS, false, \
iveresov@2818	41	"Use MAP_HUGETLB for large pages") \
iveresov@2818	42	\
stefank@5578	43	product(bool, UseTransparentHugePages, false, \
stefank@5578	44	"Use MADV_HUGEPAGE for large pages") \
stefank@5578	45	\
iklam@4710	46	product(bool, LoadExecStackDllInVMThread, true, \
iklam@4710	47	"Load DLLs with executable-stack attribute in the VM Thread") \
iklam@4710	48	\
iveresov@2818	49	product(bool, UseSHM, false, \
iveresov@2818	50	"Use SYSV shared memory for large pages")
duke@435	51
duke@435	52	//
duke@435	53	// Defines Linux-specific default values. The flags are available on all
duke@435	54	// platforms, but they may have different default values on other platforms.
duke@435	55	//
stefank@5857	56	define_pd_global(bool, UseLargePages, false);
jmasa@824	57	define_pd_global(bool, UseLargePagesIndividualAllocation, false);
duke@435	58	define_pd_global(bool, UseOSErrorReporting, false);
duke@435	59	define_pd_global(bool, UseThreadPriorities, true) ;
stefank@2314	60
stefank@2314	61	#endif // OS_LINUX_VM_GLOBALS_LINUX_HPP