merged

misc/PerfCheck.h

@@ -0,0 +1,130 @@
+#ifndef PERFCHECK_H
+#define PERFCHECK_H
+
+
+//#define WITH_PERF_CHECK
+
+#ifdef WITH_PERF_CHECK
+
+	#include <string>
+	#include <time.h>
+	#include <unordered_map>
+
+	class PerfCheck {
+
+		struct Stats {
+			size_t calls = 0;
+			clock_t time = 0;
+		};
+
+		uint32_t name;
+		clock_t in;
+
+		static Stats stats[1024];
+
+	public:
+
+		/** ctor */
+		explicit PerfCheck(const uint32_t name) : name(name), in(clock()) {
+			;
+		}
+
+		/** dtor */
+		~PerfCheck() {
+			stats[name].calls += 1;
+			stats[name].time += clock() - in;
+		}
+
+		PerfCheck(PerfCheck const&) = delete;
+
+		PerfCheck& operator = (PerfCheck const&) = delete;
+
+		static void dump() {
+			for (int i = 0; i < 1024; ++i) {
+				const Stats& s = stats[i];
+				if (s.calls != 0) {
+					std::cout << i << ":\t";
+					std::cout << "\tcalls: " << s.calls;
+					std::cout << "\ttime: " << s.time;
+					std::cout << "\ttime/call: " << ((double)s.time / (double)s.calls);
+					std::cout << std::endl;
+				}
+			}
+		}
+
+
+
+	//	static inline Stats* map() {
+	//		static Stats stats[1024];// = new Stats[1024];
+	//		return stats;
+	//	}
+
+	};
+
+	PerfCheck::Stats PerfCheck::stats[1024];
+
+	#define PERF_REGION(idx, name) PerfCheck pcr_idx(idx)
+	#define PERF_DUMP() PerfCheck::dump();
+
+#else
+
+	#define PERF_REGION(idx, name)
+	#define PERF_DUMP()
+
+#endif
+
+
+
+/*
+class PerfCheck {
+
+	std::string name;
+	clock_t in;
+
+public:
+
+	explicit PerfCheck(const std::string& name) : name(name), in(clock()) {
+		;
+	}
+
+	~PerfCheck() {
+		const clock_t diff = (clock() - in);
+		add(name, diff);
+	}
+
+	PerfCheck(PerfCheck const&) = delete;
+
+	PerfCheck& operator = (PerfCheck const&) = delete;
+
+	static void dump() {
+		for (const auto& it : map()) {
+			std::cout << it.first << ":\t";
+			std::cout << "\tcalls: " << it.second.calls;
+			std::cout << "\ttime: " << it.second.time;
+			std::cout << "\ttime/call: " << ((double)it.second.time / (double)it.second.calls);
+			std::cout << std::endl;
+		}
+	}
+
+private:
+
+	struct Stats {
+		size_t calls = 0;
+		clock_t time = 0;
+	};
+
+	static std::unordered_map<std::string, Stats>& map() {
+		static std::unordered_map<std::string, Stats> stats;
+		return stats;
+	}
+
+	void add(const std::string& name, const clock_t diff) {
+		std::unordered_map<std::string, Stats>& m = map();
+		m[name].calls += 1;
+		m[name].time += diff;
+	}
+
+};
+*/
+
+#endif // PERFCHECK_H