1 #ifndef SRC_NODE_PERF_COMMON_H_ 2 #define SRC_NODE_PERF_COMMON_H_ 3 4 #if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS 5 6 #include "node.h" 7 #include "uv.h" 8 #include "v8.h" 9 10 #include <algorithm> 11 #include <map> 12 #include <string> 13 14 namespace node { 15 namespace performance { 16 17 #define PERFORMANCE_NOW() uv_hrtime() 18 19 // These occur before the environment is created. Cache them 20 // here and add them to the milestones when the env is init'd. 21 extern uint64_t performance_v8_start; 22 23 #define NODE_PERFORMANCE_MILESTONES(V) \ 24 V(ENVIRONMENT, "environment") \ 25 V(NODE_START, "nodeStart") \ 26 V(V8_START, "v8Start") \ 27 V(LOOP_START, "loopStart") \ 28 V(LOOP_EXIT, "loopExit") \ 29 V(BOOTSTRAP_COMPLETE, "bootstrapComplete") 30 31 32 #define NODE_PERFORMANCE_ENTRY_TYPES(V) \ 33 V(NODE, "node") \ 34 V(MARK, "mark") \ 35 V(MEASURE, "measure") \ 36 V(GC, "gc") \ 37 V(FUNCTION, "function") \ 38 V(HTTP2, "http2") \ 39 V(HTTP, "http") 40 41 enum PerformanceMilestone { 42 #define V(name, _) NODE_PERFORMANCE_MILESTONE_##name, 43 NODE_PERFORMANCE_MILESTONES(V) 44 #undef V 45 NODE_PERFORMANCE_MILESTONE_INVALID 46 }; 47 48 enum PerformanceEntryType { 49 #define V(name, _) NODE_PERFORMANCE_ENTRY_TYPE_##name, 50 NODE_PERFORMANCE_ENTRY_TYPES(V) 51 #undef V 52 NODE_PERFORMANCE_ENTRY_TYPE_INVALID 53 }; 54 55 class PerformanceState { 56 public: PerformanceState(v8::Isolate * isolate)57 explicit PerformanceState(v8::Isolate* isolate) : 58 root( 59 isolate, 60 sizeof(performance_state_internal)), 61 milestones( 62 isolate, 63 offsetof(performance_state_internal, milestones), 64 NODE_PERFORMANCE_MILESTONE_INVALID, 65 root), 66 observers( 67 isolate, 68 offsetof(performance_state_internal, observers), 69 NODE_PERFORMANCE_ENTRY_TYPE_INVALID, 70 root) { 71 for (size_t i = 0; i < milestones.Length(); i++) 72 milestones[i] = -1.; 73 } 74 75 AliasedUint8Array root; 76 AliasedFloat64Array milestones; 77 AliasedUint32Array observers; 78 79 uint64_t performance_last_gc_start_mark = 0; 80 81 void Mark(enum PerformanceMilestone milestone, 82 uint64_t ts = PERFORMANCE_NOW()); 83 84 private: 85 struct performance_state_internal { 86 // doubles first so that they are always sizeof(double)-aligned 87 double milestones[NODE_PERFORMANCE_MILESTONE_INVALID]; 88 uint32_t observers[NODE_PERFORMANCE_ENTRY_TYPE_INVALID]; 89 }; 90 }; 91 92 } // namespace performance 93 } // namespace node 94 95 #endif // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS 96 97 #endif // SRC_NODE_PERF_COMMON_H_ 98