899 *
900 * {
901 * PerfTraceTime ptt(my_time_counter);
902 * // perform the operation you want to measure
903 * }
904 *
905 * Note: use of this class does not need to occur within a guarded
906 * block. The UsePerfData guard is used with the implementation
907 * of this class.
908 */
909 class PerfTraceTime : public StackObj {
910
911 protected:
912 elapsedTimer _t;
913 PerfLongCounter* _timerp;
914 // pointer to thread-local or global recursion counter variable
915 int* _recursion_counter;
916
917 public:
918 inline PerfTraceTime(PerfLongCounter* timerp) : _timerp(timerp), _recursion_counter(NULL) {
919 if (!UsePerfData) return;
920 _t.start();
921 }
922
923 inline PerfTraceTime(PerfLongCounter* timerp, int* recursion_counter) : _timerp(timerp), _recursion_counter(recursion_counter) {
924 if (!UsePerfData || (_recursion_counter != NULL &&
925 (*_recursion_counter)++ > 0)) return;
926 _t.start();
927 }
928
929 inline void suspend() { if (!UsePerfData) return; _t.stop(); }
930 inline void resume() { if (!UsePerfData) return; _t.start(); }
931
932 inline ~PerfTraceTime() {
933 if (!UsePerfData || (_recursion_counter != NULL &&
934 --(*_recursion_counter) > 0)) return;
935 _t.stop();
936 _timerp->inc(_t.ticks());
937 }
938 };
939
940 /* The PerfTraceTimedEvent class is responsible for counting the
941 * occurrence of some event and measuring the the elapsed time of
942 * the event in two separate PerfCounter instances.
943 *
944 * Example:
945 *
946 * static PerfCounter* my_time_counter = PerfDataManager::create_counter("my.time.counter", PerfData::U_Ticks, CHECK);
947 * static PerfCounter* my_event_counter = PerfDataManager::create_counter("my.event.counter", PerfData::U_Events, CHECK);
948 *
949 * {
950 * PerfTraceTimedEvent ptte(my_time_counter, my_event_counter);
951 * // perform the operation you want to count and measure
952 * }
953 *
954 * Note: use of this class does not need to occur within a guarded
955 * block. The UsePerfData guard is used with the implementation
956 * of this class.
957 *
958 */
959 class PerfTraceTimedEvent : public PerfTraceTime {
960
961 protected:
962 PerfLongCounter* _eventp;
963
964 public:
965 inline PerfTraceTimedEvent(PerfLongCounter* timerp, PerfLongCounter* eventp): PerfTraceTime(timerp), _eventp(eventp) {
966 if (!UsePerfData) return;
967 _eventp->inc();
968 }
969
970 inline PerfTraceTimedEvent(PerfLongCounter* timerp, PerfLongCounter* eventp, int* recursion_counter): PerfTraceTime(timerp, recursion_counter), _eventp(eventp) {
971 if (!UsePerfData) return;
972 _eventp->inc();
973 }
974 };
975
976 #endif // SHARE_VM_RUNTIME_PERFDATA_HPP
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899 *
900 * {
901 * PerfTraceTime ptt(my_time_counter);
902 * // perform the operation you want to measure
903 * }
904 *
905 * Note: use of this class does not need to occur within a guarded
906 * block. The UsePerfData guard is used with the implementation
907 * of this class.
908 */
909 class PerfTraceTime : public StackObj {
910
911 protected:
912 elapsedTimer _t;
913 PerfLongCounter* _timerp;
914 // pointer to thread-local or global recursion counter variable
915 int* _recursion_counter;
916
917 public:
918 inline PerfTraceTime(PerfLongCounter* timerp) : _timerp(timerp), _recursion_counter(NULL) {
919 if (!UsePerfData || (_timerp == NULL)) return;
920 _t.start();
921 }
922
923 inline PerfTraceTime(PerfLongCounter* timerp, int* recursion_counter) : _timerp(timerp), _recursion_counter(recursion_counter) {
924 if (!UsePerfData || (_timerp == NULL) ||
925 (_recursion_counter != NULL && (*_recursion_counter)++ > 0)) return;
926 _t.start();
927 }
928
929 inline void suspend() { if (!UsePerfData || (_timerp == NULL)) return; _t.stop(); }
930 inline void resume() { if (!UsePerfData || (_timerp == NULL)) return; _t.start(); }
931
932 inline ~PerfTraceTime() {
933 if (!UsePerfData || (_timerp == NULL) ||
934 (_recursion_counter != NULL && --(*_recursion_counter) > 0)) return;
935 _t.stop();
936 _timerp->inc(_t.ticks());
937 }
938 };
939
940 /* The PerfTraceTimedEvent class is responsible for counting the
941 * occurrence of some event and measuring the the elapsed time of
942 * the event in two separate PerfCounter instances.
943 *
944 * Example:
945 *
946 * static PerfCounter* my_time_counter = PerfDataManager::create_counter("my.time.counter", PerfData::U_Ticks, CHECK);
947 * static PerfCounter* my_event_counter = PerfDataManager::create_counter("my.event.counter", PerfData::U_Events, CHECK);
948 *
949 * {
950 * PerfTraceTimedEvent ptte(my_time_counter, my_event_counter);
951 * // perform the operation you want to count and measure
952 * }
953 *
954 * Note: use of this class does not need to occur within a guarded
955 * block. The UsePerfData guard is used with the implementation
956 * of this class.
957 *
958 */
959 class PerfTraceTimedEvent : public PerfTraceTime {
960
961 protected:
962 PerfLongCounter* _eventp;
963
964 public:
965 inline PerfTraceTimedEvent(PerfLongCounter* timerp, PerfLongCounter* eventp): PerfTraceTime(timerp), _eventp(eventp) {
966 if (!UsePerfData || (timerp == NULL)) return;
967 _eventp->inc();
968 }
969
970 inline PerfTraceTimedEvent(PerfLongCounter* timerp, PerfLongCounter* eventp, int* recursion_counter): PerfTraceTime(timerp, recursion_counter), _eventp(eventp) {
971 if (!UsePerfData || (timerp == NULL)) return;
972 _eventp->inc();
973 }
974 };
975
976 #endif // SHARE_VM_RUNTIME_PERFDATA_HPP
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