Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/runtime/advancedThresholdPolicy.cpp
src/share/vm/runtime/advancedThresholdPolicy.cpp
- changeset 9637
- eef07cd490d4
- parent 7535
- 7ae4e26cb1e0
- parent 9614
- bb44c0e88235
- child 9703
- 2fdf635bcf28
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| 9581:95fce20624fc | 9637:eef07cd490d4 |
|---|---|
| 45 FLAG_SET_DEFAULT(CICompilerCountPerCPU, true); | 45 FLAG_SET_DEFAULT(CICompilerCountPerCPU, true); |
| 46 } | 46 } |
| 47 int count = CICompilerCount; | 47 int count = CICompilerCount; |
| 48 if (CICompilerCountPerCPU) { | 48 if (CICompilerCountPerCPU) { |
| 49 // Simple log n seems to grow too slowly for tiered, try something faster: log n * log log n | 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()); | 50 int log_cpu = log2_int(os::active_processor_count()); |
| 51 int loglog_cpu = log2_intptr(MAX2(log_cpu, 1)); | 51 int loglog_cpu = log2_int(MAX2(log_cpu, 1)); |
| 52 count = MAX2(log_cpu * loglog_cpu, 1) * 3 / 2; | 52 count = MAX2(log_cpu * loglog_cpu, 1) * 3 / 2; |
| 53 } | 53 } |
| 54 | 54 |
| 55 set_c1_count(MAX2(count / 3, 1)); | 55 set_c1_count(MAX2(count / 3, 1)); |
| 56 set_c2_count(MAX2(count - c1_count(), 1)); | 56 set_c2_count(MAX2(count - c1_count(), 1)); |
| 129 bool AdvancedThresholdPolicy::is_old(Method* method) { | 129 bool AdvancedThresholdPolicy::is_old(Method* method) { |
| 130 return method->invocation_count() > 50000 || method->backedge_count() > 500000; | 130 return method->invocation_count() > 50000 || method->backedge_count() > 500000; |
| 131 } | 131 } |
| 132 | 132 |
| 133 double AdvancedThresholdPolicy::weight(Method* method) { | 133 double AdvancedThresholdPolicy::weight(Method* method) { |
| 134 return (method->rate() + 1) * ((method->invocation_count() + 1) * (method->backedge_count() + 1)); | 134 return (double)(method->rate() + 1) * |
| 135 (method->invocation_count() + 1) * (method->backedge_count() + 1); | |
| 135 } | 136 } |
| 136 | 137 |
| 137 // Apply heuristics and return true if x should be compiled before y | 138 // Apply heuristics and return true if x should be compiled before y |
| 138 bool AdvancedThresholdPolicy::compare_methods(Method* x, Method* y) { | 139 bool AdvancedThresholdPolicy::compare_methods(Method* x, Method* y) { |
| 139 if (x->highest_comp_level() > y->highest_comp_level()) { | 140 if (x->highest_comp_level() > y->highest_comp_level()) { |
