8233061: ZGC: Enforce memory ordering in segmented bit maps
Reviewed-by: pliden, stefank
/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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*
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* 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).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
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*/
#ifndef SHARE_GC_Z_Z_GLOBALS_HPP
#define SHARE_GC_Z_Z_GLOBALS_HPP
#define GC_Z_FLAGS(develop, \
develop_pd, \
product, \
product_pd, \
diagnostic, \
diagnostic_pd, \
experimental, \
notproduct, \
manageable, \
product_rw, \
lp64_product, \
range, \
constraint, \
writeable) \
\
experimental(ccstr, ZPath, NULL, \
"Filesystem path for Java heap backing storage " \
"(must be a tmpfs or a hugetlbfs filesystem)") \
\
experimental(double, ZAllocationSpikeTolerance, 2.0, \
"Allocation spike tolerance factor") \
\
experimental(double, ZFragmentationLimit, 25.0, \
"Maximum allowed heap fragmentation") \
\
experimental(size_t, ZMarkStackSpaceLimit, 8*G, \
"Maximum number of bytes allocated for mark stacks") \
range(32*M, 1024*G) \
\
experimental(uint, ZCollectionInterval, 0, \
"Force GC at a fixed time interval (in seconds)") \
\
experimental(bool, ZUncommit, true, \
"Uncommit unused memory") \
\
experimental(uintx, ZUncommitDelay, 5 * 60, \
"Uncommit memory if it has been unused for the specified " \
"amount of time (in seconds)") \
\
diagnostic(uint, ZStatisticsInterval, 10, \
"Time between statistics print outs (in seconds)") \
range(1, (uint)-1) \
\
diagnostic(bool, ZProactive, true, \
"Enable proactive GC cycles") \
\
diagnostic(bool, ZVerifyViews, false, \
"Verify heap view accesses") \
\
diagnostic(bool, ZVerifyRoots, trueInDebug, \
"Verify roots") \
\
diagnostic(bool, ZVerifyObjects, false, \
"Verify objects") \
\
diagnostic(bool, ZVerifyMarking, false, \
"Verify marking stacks") \
\
diagnostic(bool, ZVerifyForwarding, false, \
"Verify forwarding tables")
#endif // SHARE_GC_Z_Z_GLOBALS_HPP