39                    constraint,                                              \
  40                    writeable)                                               \
  41                                                                             \
  42   experimental(ccstr, ZPath, NULL,                                          \
  43           "Filesystem path for Java heap backing storage "                  \
  44           "(must be a tmpfs or a hugetlbfs filesystem)")                    \
  45                                                                             \
  46   experimental(double, ZAllocationSpikeTolerance, 2.0,                      \
  47           "Allocation spike tolerance factor")                              \
  48                                                                             \
  49   experimental(double, ZFragmentationLimit, 25.0,                           \
  50           "Maximum allowed heap fragmentation")                             \
  51                                                                             \
  52   experimental(size_t, ZMarkStackSpaceLimit, 8*G,                           \
  53           "Maximum number of bytes allocated for mark stacks")              \
  54           range(32*M, 1024*G)                                               \
  55                                                                             \
  56   experimental(uint, ZCollectionInterval, 0,                                \
  57           "Force GC at a fixed time interval (in seconds)")                 \
  58                                                                             \







  59   diagnostic(uint, ZStatisticsInterval, 10,                                 \
  60           "Time between statistics print outs (in seconds)")                \
  61           range(1, (uint)-1)                                                \
  62                                                                             \
  63   diagnostic(bool, ZStatisticsForceTrace, false,                            \
  64           "Force tracing of ZStats")                                        \
  65                                                                             \
  66   diagnostic(bool, ZProactive, true,                                        \
  67           "Enable proactive GC cycles")                                     \
  68                                                                             \
  69   diagnostic(bool, ZVerifyViews, false,                                     \
  70           "Verify heap view accesses")                                      \
  71                                                                             \
  72   diagnostic(bool, ZVerifyMarking, false,                                   \
  73           "Verify marking stacks")                                          \
  74                                                                             \
  75   diagnostic(bool, ZVerifyForwarding, false,                                \
  76           "Verify forwarding tables")                                       \
  77                                                                             \
  78   diagnostic(bool, ZOptimizeLoadBarriers, true,                             \

  39                    constraint,                                              \
  40                    writeable)                                               \
  41                                                                             \
  42   experimental(ccstr, ZPath, NULL,                                          \
  43           "Filesystem path for Java heap backing storage "                  \
  44           "(must be a tmpfs or a hugetlbfs filesystem)")                    \
  45                                                                             \
  46   experimental(double, ZAllocationSpikeTolerance, 2.0,                      \
  47           "Allocation spike tolerance factor")                              \
  48                                                                             \
  49   experimental(double, ZFragmentationLimit, 25.0,                           \
  50           "Maximum allowed heap fragmentation")                             \
  51                                                                             \
  52   experimental(size_t, ZMarkStackSpaceLimit, 8*G,                           \
  53           "Maximum number of bytes allocated for mark stacks")              \
  54           range(32*M, 1024*G)                                               \
  55                                                                             \
  56   experimental(uint, ZCollectionInterval, 0,                                \
  57           "Force GC at a fixed time interval (in seconds)")                 \
  58                                                                             \
  59   experimental(bool, ZUncommit, true,                                       \
  60           "Uncommit unused memory")                                         \
  61                                                                             \
  62   experimental(uintx, ZUncommitDelay, 5 * 60,                               \
  63           "Uncommit memory if it has been unused for the specified "        \
  64           "amount of time (in seconds)")                                    \
  65                                                                             \
  66   diagnostic(uint, ZStatisticsInterval, 10,                                 \
  67           "Time between statistics print outs (in seconds)")                \
  68           range(1, (uint)-1)                                                \
  69                                                                             \
  70   diagnostic(bool, ZStatisticsForceTrace, false,                            \
  71           "Force tracing of ZStats")                                        \
  72                                                                             \
  73   diagnostic(bool, ZProactive, true,                                        \
  74           "Enable proactive GC cycles")                                     \
  75                                                                             \
  76   diagnostic(bool, ZVerifyViews, false,                                     \
  77           "Verify heap view accesses")                                      \
  78                                                                             \
  79   diagnostic(bool, ZVerifyMarking, false,                                   \
  80           "Verify marking stacks")                                          \
  81                                                                             \
  82   diagnostic(bool, ZVerifyForwarding, false,                                \
  83           "Verify forwarding tables")                                       \
  84                                                                             \
  85   diagnostic(bool, ZOptimizeLoadBarriers, true,                             \