995 return _buffer;
996 }
997 };
998
999 public:
1000 ZStatTablePrinter(size_t column0_width, size_t columnN_width) :
1001 _column0_width(column0_width),
1002 _columnN_width(columnN_width) {}
1003
1004 ZColumn operator()() {
1005 return ZColumn(_buffer, 0, _column0_width, _columnN_width);
1006 }
1007 };
1008
1009 //
1010 // Stat cycle
1011 //
1012 uint64_t ZStatCycle::_ncycles = 0;
1013 Ticks ZStatCycle::_start_of_last;
1014 Ticks ZStatCycle::_end_of_last;
1015 NumberSeq ZStatCycle::_duration(0.3 /* alpha */);
1016
1017 void ZStatCycle::at_start() {
1018 _start_of_last = Ticks::now();
1019 }
1020
1021 void ZStatCycle::at_end(double boost_factor) {
1022 _end_of_last = Ticks::now();
1023 _ncycles++;
1024
1025 // Calculate cycle duration. The duration is normalized using the boost
1026 // factor to avoid artificial deflation of the duration when boost mode
1027 // is enabled.
1028 const double duration = TicksToTimeHelper::seconds(_end_of_last - _start_of_last);
1029 const double normalized_duration = duration * boost_factor;
1030 _duration.add(normalized_duration);
1031 }
1032
1033 uint64_t ZStatCycle::ncycles() {
1034 return _ncycles;
1035 }
1036
1037 const AbsSeq& ZStatCycle::duration() {
1038 return _duration;
1039 }
1040
1041 double ZStatCycle::time_since_last() {
1042 if (_ncycles == 0) {
1043 // Return time since VM start-up
1044 return os::elapsedTime();
1045 }
1046
1047 const Ticks now = Ticks::now();
1048 const Tickspan time_since_last = now - _end_of_last;
1049 return TicksToTimeHelper::seconds(time_since_last);
1050 }
1051
1052 //
1053 // Stat load
1054 //
1055 void ZStatLoad::print() {
1056 double loadavg[3] = {};
1057 os::loadavg(loadavg, ARRAY_SIZE(loadavg));
1058 log_info(gc, load)("Load: %.2f/%.2f/%.2f", loadavg[0], loadavg[1], loadavg[2]);
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995 return _buffer;
996 }
997 };
998
999 public:
1000 ZStatTablePrinter(size_t column0_width, size_t columnN_width) :
1001 _column0_width(column0_width),
1002 _columnN_width(columnN_width) {}
1003
1004 ZColumn operator()() {
1005 return ZColumn(_buffer, 0, _column0_width, _columnN_width);
1006 }
1007 };
1008
1009 //
1010 // Stat cycle
1011 //
1012 uint64_t ZStatCycle::_ncycles = 0;
1013 Ticks ZStatCycle::_start_of_last;
1014 Ticks ZStatCycle::_end_of_last;
1015 NumberSeq ZStatCycle::_normalized_duration(0.3 /* alpha */);
1016
1017 void ZStatCycle::at_start() {
1018 _start_of_last = Ticks::now();
1019 }
1020
1021 void ZStatCycle::at_end(double boost_factor) {
1022 _end_of_last = Ticks::now();
1023 _ncycles++;
1024
1025 // Calculate normalized cycle duration. The measured duration is
1026 // normalized using the boost factor to avoid artificial deflation
1027 // of the duration when boost mode is enabled.
1028 const double duration = TicksToTimeHelper::seconds(_end_of_last - _start_of_last);
1029 const double normalized_duration = duration * boost_factor;
1030 _normalized_duration.add(normalized_duration);
1031 }
1032
1033 uint64_t ZStatCycle::ncycles() {
1034 return _ncycles;
1035 }
1036
1037 const AbsSeq& ZStatCycle::normalized_duration() {
1038 return _normalized_duration;
1039 }
1040
1041 double ZStatCycle::time_since_last() {
1042 if (_ncycles == 0) {
1043 // Return time since VM start-up
1044 return os::elapsedTime();
1045 }
1046
1047 const Ticks now = Ticks::now();
1048 const Tickspan time_since_last = now - _end_of_last;
1049 return TicksToTimeHelper::seconds(time_since_last);
1050 }
1051
1052 //
1053 // Stat load
1054 //
1055 void ZStatLoad::print() {
1056 double loadavg[3] = {};
1057 os::loadavg(loadavg, ARRAY_SIZE(loadavg));
1058 log_info(gc, load)("Load: %.2f/%.2f/%.2f", loadavg[0], loadavg[1], loadavg[2]);
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