src/share/vm/runtime/advancedThresholdPolicy.cpp
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src/share/vm/runtime/advancedThresholdPolicy.cpp

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  35   else tty->print("%f", mh->rate());
  36 
  37   tty->print(" k=%.2lf,%.2lf", threshold_scale(CompLevel_full_profile, Tier3LoadFeedback),
  38                                threshold_scale(CompLevel_full_optimization, Tier4LoadFeedback));
  39 
  40 }
  41 
  42 void AdvancedThresholdPolicy::initialize() {
  43   // Turn on ergonomic compiler count selection
  44   if (FLAG_IS_DEFAULT(CICompilerCountPerCPU) && FLAG_IS_DEFAULT(CICompilerCount)) {
  45     FLAG_SET_DEFAULT(CICompilerCountPerCPU, true);
  46   }
  47   int count = CICompilerCount;
  48   if (CICompilerCountPerCPU) {
  49     // Simple log n seems to grow too slowly for tiered, try something faster: log n * log log n
  50     int log_cpu = log2_intptr(os::active_processor_count());
  51     int loglog_cpu = log2_intptr(MAX2(log_cpu, 1));
  52     count = MAX2(log_cpu * loglog_cpu, 1) * 3 / 2;
  53   }
  54 



  55   set_c1_count(MAX2(count / 3, 1));
  56   set_c2_count(MAX2(count - count / 3, 1));

  57 
  58   // Some inlining tuning
  59 #ifdef X86
  60   if (FLAG_IS_DEFAULT(InlineSmallCode)) {
  61     FLAG_SET_DEFAULT(InlineSmallCode, 2000);
  62   }
  63 #endif
  64 
  65 #ifdef SPARC
  66   if (FLAG_IS_DEFAULT(InlineSmallCode)) {
  67     FLAG_SET_DEFAULT(InlineSmallCode, 2500);
  68   }
  69 #endif
  70 
  71   set_increase_threshold_at_ratio();
  72   set_start_time(os::javaTimeMillis());
  73 }
  74 
  75 // update_rate() is called from select_task() while holding a compile queue lock.
  76 void AdvancedThresholdPolicy::update_rate(jlong t, Method* m) {




  35   else tty->print("%f", mh->rate());
  36 
  37   tty->print(" k=%.2lf,%.2lf", threshold_scale(CompLevel_full_profile, Tier3LoadFeedback),
  38                                threshold_scale(CompLevel_full_optimization, Tier4LoadFeedback));
  39 
  40 }
  41 
  42 void AdvancedThresholdPolicy::initialize() {
  43   // Turn on ergonomic compiler count selection
  44   if (FLAG_IS_DEFAULT(CICompilerCountPerCPU) && FLAG_IS_DEFAULT(CICompilerCount)) {
  45     FLAG_SET_DEFAULT(CICompilerCountPerCPU, true);
  46   }
  47   int count = CICompilerCount;
  48   if (CICompilerCountPerCPU) {
  49     // Simple log n seems to grow too slowly for tiered, try something faster: log n * log log n
  50     int log_cpu = log2_intptr(os::active_processor_count());
  51     int loglog_cpu = log2_intptr(MAX2(log_cpu, 1));
  52     count = MAX2(log_cpu * loglog_cpu, 1) * 3 / 2;
  53   }
  54 
  55   assert ((c1_count() == 0) && (c2_count() == 0), "Must be initialized to 0");
  56   // Set number of compiler threads only if we also use the compiler
  57   if (Arguments::mode() != Arguments::_int) {
  58     set_c1_count(MAX2(count / 3, 1));
  59     set_c2_count(MAX2(count - count / 3, 1));
  60   }
  61 
  62   // Some inlining tuning
  63 #ifdef X86
  64   if (FLAG_IS_DEFAULT(InlineSmallCode)) {
  65     FLAG_SET_DEFAULT(InlineSmallCode, 2000);
  66   }
  67 #endif
  68 
  69 #ifdef SPARC
  70   if (FLAG_IS_DEFAULT(InlineSmallCode)) {
  71     FLAG_SET_DEFAULT(InlineSmallCode, 2500);
  72   }
  73 #endif
  74 
  75   set_increase_threshold_at_ratio();
  76   set_start_time(os::javaTimeMillis());
  77 }
  78 
  79 // update_rate() is called from select_task() while holding a compile queue lock.
  80 void AdvancedThresholdPolicy::update_rate(jlong t, Method* m) {


src/share/vm/runtime/advancedThresholdPolicy.cpp
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