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authorGabda <gabda87@gmail.com>2019-02-28 12:18:06 +0100
committerNiels Martin Hansen <nielsm@indvikleren.dk>2019-03-09 01:05:47 +0100
commit7e7563f15f999cac5c140cb93e917905a9450df4 (patch)
tree358177588b7e5865a4d24bd5723ac9835b4a9a49
parent4be2c1022e8576f139035ba41cdae97cf3799f5c (diff)
downloadopenttd-7e7563f15f999cac5c140cb93e917905a9450df4.tar.xz
Add: Chrono based TIC() and TOC() in debug
-rw-r--r--src/debug.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/src/debug.h b/src/debug.h
index 1eaa20868..3faefffaf 100644
--- a/src/debug.h
+++ b/src/debug.h
@@ -13,6 +13,7 @@
#define DEBUG_H
#include "cpu.h"
+#include <chrono>
/* Debugging messages policy:
* These should be the severities used for direct DEBUG() calls
@@ -83,6 +84,9 @@ const char *GetDebugString();
*
* TIC() / TOC() creates its own block, so make sure not the mangle
* it with another block.
+ *
+ * The output is counted in CPU cycles, and not comparable accross
+ * machines. Mainly useful for local optimisations.
**/
#define TIC() {\
uint64 _xxx_ = ottd_rdtsc();\
@@ -98,6 +102,22 @@ const char *GetDebugString();
}\
}
+/* Chrono based version. The output is in microseconds. */
+#define TICC() {\
+ auto _start_ = std::chrono::high_resolution_clock::now();\
+ static uint64 _sum_ = 0;\
+ static uint32 _i_ = 0;
+
+#define TOCC(str, _count_)\
+ _sum_ += (std::chrono::duration_cast<std::chrono::microseconds>(std::chrono::high_resolution_clock::now() - _start_)).count();\
+ if (++_i_ == _count_) {\
+ DEBUG(misc, 0, "[%s] " OTTD_PRINTF64 " us [avg: %.1f us]", str, _sum_, _sum_/(double)_i_);\
+ _i_ = 0;\
+ _sum_ = 0;\
+ }\
+}
+
+
void ShowInfo(const char *str);
void CDECL ShowInfoF(const char *str, ...) WARN_FORMAT(1, 2);