252
253 virtual void register_start(const Ticks& start) const;
254 virtual void register_end(const Ticks& start, const Ticks& end) const;
255 };
256
257 class ZStatCriticalPhase : public ZStatPhase {
258 private:
259 const ZStatCounter _counter;
260 const bool _verbose;
261
262 public:
263 ZStatCriticalPhase(const char* name, bool verbose = true);
264
265 virtual void register_start(const Ticks& start) const;
266 virtual void register_end(const Ticks& start, const Ticks& end) const;
267 };
268
269 //
270 // Stat timer
271 //
272 class ZStatTimer : public StackObj {
273 private:
274 const ZStatPhase& _phase;
275 const Ticks _start;
276
277 public:
278 ZStatTimer(const ZStatPhase& phase) :
279 _phase(phase),
280 _start(Ticks::now()) {
281 _phase.register_start(_start);
282 }
283
284 ~ZStatTimer() {
285 const Ticks end = Ticks::now();
286 _phase.register_end(_start, end);
287 }
288 };
289
290 //
291 // Stat sample/increment
292 //
293 void ZStatSample(const ZStatSampler& sampler, uint64_t value, bool trace = ZStatisticsForceTrace);
294 void ZStatInc(const ZStatCounter& counter, uint64_t increment = 1, bool trace = ZStatisticsForceTrace);
295 void ZStatInc(const ZStatUnsampledCounter& counter, uint64_t increment = 1);
296
297 //
298 // Stat allocation rate
299 //
300 class ZStatAllocRate : public AllStatic {
301 private:
302 static const ZStatUnsampledCounter _counter;
303 static TruncatedSeq _rate; // B/s
304 static TruncatedSeq _rate_avg; // B/s
305
306 public:
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252
253 virtual void register_start(const Ticks& start) const;
254 virtual void register_end(const Ticks& start, const Ticks& end) const;
255 };
256
257 class ZStatCriticalPhase : public ZStatPhase {
258 private:
259 const ZStatCounter _counter;
260 const bool _verbose;
261
262 public:
263 ZStatCriticalPhase(const char* name, bool verbose = true);
264
265 virtual void register_start(const Ticks& start) const;
266 virtual void register_end(const Ticks& start, const Ticks& end) const;
267 };
268
269 //
270 // Stat timer
271 //
272 class ZStatTimerDisable : public StackObj {
273 private:
274 static __thread uint32_t _active;
275
276 public:
277 ZStatTimerDisable() {
278 _active++;
279 }
280
281 ~ZStatTimerDisable() {
282 _active--;
283 }
284
285 static bool is_active() {
286 return _active > 0;
287 }
288 };
289
290 class ZStatTimer : public StackObj {
291 private:
292 const bool _enabled;
293 const ZStatPhase& _phase;
294 const Ticks _start;
295
296 public:
297 ZStatTimer(const ZStatPhase& phase) :
298 _enabled(!ZStatTimerDisable::is_active()),
299 _phase(phase),
300 _start(Ticks::now()) {
301 if (_enabled) {
302 _phase.register_start(_start);
303 }
304 }
305
306 ~ZStatTimer() {
307 if (_enabled) {
308 const Ticks end = Ticks::now();
309 _phase.register_end(_start, end);
310 }
311 }
312 };
313
314 //
315 // Stat sample/increment
316 //
317 void ZStatSample(const ZStatSampler& sampler, uint64_t value, bool trace = ZStatisticsForceTrace);
318 void ZStatInc(const ZStatCounter& counter, uint64_t increment = 1, bool trace = ZStatisticsForceTrace);
319 void ZStatInc(const ZStatUnsampledCounter& counter, uint64_t increment = 1);
320
321 //
322 // Stat allocation rate
323 //
324 class ZStatAllocRate : public AllStatic {
325 private:
326 static const ZStatUnsampledCounter _counter;
327 static TruncatedSeq _rate; // B/s
328 static TruncatedSeq _rate_avg; // B/s
329
330 public:
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