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src/share/vm/gc/g1/g1_globals.hpp

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rev 9399 : imported patch 8067433-keep-waste-at-end-of-regions-for-further-allocation-during-gc
rev 9405 : imported patch 8136678-implement-adaptive-sizing-algorithm-for-IHOP
rev 9406 : imported patch aihop-thomas-review
rev 9407 : [mq]: erik-jon-review


  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef SHARE_VM_GC_G1_G1_GLOBALS_HPP
  26 #define SHARE_VM_GC_G1_G1_GLOBALS_HPP
  27 
  28 #include "runtime/globals.hpp"
  29 #include <float.h> // for DBL_MAX
  30 //
  31 // Defines all globals flags used by the garbage-first compiler.
  32 //
  33 
  34 #define G1_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct, manageable, product_rw, range, constraint) \
  35                                                                             \
  36   product(bool, G1UseAdaptiveIHOP, false,                                   \
  37           "Adaptively adjust InitiatingHeapOccupancyPercent from the "      \
  38           "initial value.")                                                 \
  39                                                                             \
  40   experimental(size_t, G1AdaptiveIHOPNumInitialSamples, 3,                  \
  41           "How many completed periods from initial mark to first mixed gc  "\
  42           "are required to start adaptively determining the IHOP.")         \


  43                                                                             \
  44   product(uintx, G1ConfidencePercent, 50,                                   \
  45           "Confidence level for MMU/pause predictions")                     \
  46           range(0, 100)                                                     \
  47                                                                             \
  48   develop(intx, G1MarkingOverheadPercent, 0,                                \
  49           "Overhead of concurrent marking")                                 \
  50           range(0, 100)                                                     \
  51                                                                             \
  52   develop(intx, G1MarkingVerboseLevel, 0,                                   \
  53           "Level (0-4) of verboseness of the marking code")                 \
  54           range(0, 4)                                                       \
  55                                                                             \
  56   develop(bool, G1TraceMarkStackOverflow, false,                            \
  57           "If true, extra debugging code for CM restart for ovflw.")        \
  58                                                                             \
  59   diagnostic(bool, G1SummarizeConcMark, false,                              \
  60           "Summarize concurrent mark info")                                 \
  61                                                                             \
  62   diagnostic(bool, G1SummarizeRSetStats, false,                             \




  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef SHARE_VM_GC_G1_G1_GLOBALS_HPP
  26 #define SHARE_VM_GC_G1_G1_GLOBALS_HPP
  27 
  28 #include "runtime/globals.hpp"
  29 #include <float.h> // for DBL_MAX
  30 //
  31 // Defines all globals flags used by the garbage-first compiler.
  32 //
  33 
  34 #define G1_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct, manageable, product_rw, range, constraint) \
  35                                                                             \
  36   product(bool, G1UseAdaptiveIHOP, false,                                   \
  37           "Adaptively adjust InitiatingHeapOccupancyPercent from the "      \
  38           "initial value.")                                                 \
  39                                                                             \
  40   experimental(size_t, G1AdaptiveIHOPNumInitialSamples, 3,                  \
  41           "How many completed time periods from initial mark to first "     \
  42           "mixed gc are required to use the input values for prediction "   \
  43           "of the optimal occupancy to start marking.")                     \
  44           range(1, max_intx)                                                \
  45                                                                             \
  46   product(uintx, G1ConfidencePercent, 50,                                   \
  47           "Confidence level for MMU/pause predictions")                     \
  48           range(0, 100)                                                     \
  49                                                                             \
  50   develop(intx, G1MarkingOverheadPercent, 0,                                \
  51           "Overhead of concurrent marking")                                 \
  52           range(0, 100)                                                     \
  53                                                                             \
  54   develop(intx, G1MarkingVerboseLevel, 0,                                   \
  55           "Level (0-4) of verboseness of the marking code")                 \
  56           range(0, 4)                                                       \
  57                                                                             \
  58   develop(bool, G1TraceMarkStackOverflow, false,                            \
  59           "If true, extra debugging code for CM restart for ovflw.")        \
  60                                                                             \
  61   diagnostic(bool, G1SummarizeConcMark, false,                              \
  62           "Summarize concurrent mark info")                                 \
  63                                                                             \
  64   diagnostic(bool, G1SummarizeRSetStats, false,                             \


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