Commit: e5e7507d31e8ae817231c4189fe0602ebce4003f
Author: Bastien Montagne
Date: Wed Jan 27 11:48:30 2016 +0100
Branches: master
https://developer.blender.org/rBe5e7507d31e8ae817231c4189fe0602ebce4003f
PIL_time_utiledefines: add TIMEIT_AVERAGED variants to block timing macros.
This variant behave exactly as TIMEIT_START etc., but it also sums up all times
in
a static var and prints out average execution time - very useful when dealing
with small/quick pieces of code that get executed often, to get some meaningful
results.
===================================================================
M source/blender/blenlib/PIL_time_utildefines.h
M source/blender/editors/sculpt_paint/paint_stroke.c
===================================================================
diff --git a/source/blender/blenlib/PIL_time_utildefines.h
b/source/blender/blenlib/PIL_time_utildefines.h
index 4141bef..3984482 100644
--- a/source/blender/blenlib/PIL_time_utildefines.h
+++ b/source/blender/blenlib/PIL_time_utildefines.h
@@ -51,15 +51,40 @@
#define TIMEIT_VALUE_PRINT(var) \
{
\
- printf("time update(" #var "): %.6f" " " AT "\n",
TIMEIT_VALUE(var));\
+ printf("time update (" #var "): %.6f" " " AT "\n",
TIMEIT_VALUE(var));\
fflush(stdout);
\
} (void)0
#define TIMEIT_END(var) \
- }
\
- printf("time end (" #var "): %.6f" " " AT "\n", TIMEIT_VALUE(var));
\
- fflush(stdout);
\
-} (void)0
+ }
\
+ printf("time end (" #var "): %.6f" " " AT "\n",
TIMEIT_VALUE(var));\
+ fflush(stdout);
\
+ } (void)0
+
+/**
+ * _AVERAGED variants do same thing as their basic counterpart, but
additionnally add elapsed time to an averaged
+ * static value, useful to get sensible timing of code running fast and often.
+ */
+#define TIMEIT_START_AVERAGED(var) \
+ {
\
+ static float _sum_##var = 0.0f;
\
+ static float _num_##var = 0.0f;
\
+ double _timeit_##var = PIL_check_seconds_timer();
\
+ printf("time start (" #var "): " AT "\n");
\
+ fflush(stdout);
\
+ { (void)0
+
+#define TIMEIT_AVERAGED_VALUE(var) (_num##var ? (_sum_##var / _num_##var) :
0.0f)
+
+#define TIMEIT_END_AVERAGED(var) \
+ }
\
+ const float _delta_##var = TIMEIT_VALUE(var);
\
+ _sum_##var += _delta_##var;
\
+ printf("time end (" #var "): %.6f" " " AT "\n",
_delta_##var); \
+ printf("time averaged (" #var "): %.6f" " " AT "\n",
\
+ (_sum_##var / ++_num_##var));
\
+ fflush(stdout);
\
+ } (void)0
/**
* Given some function/expression:
diff --git a/source/blender/editors/sculpt_paint/paint_stroke.c
b/source/blender/editors/sculpt_paint/paint_stroke.c
index e394c3f..bf1a2fa 100644
--- a/source/blender/editors/sculpt_paint/paint_stroke.c
+++ b/source/blender/editors/sculpt_paint/paint_stroke.c
@@ -983,7 +983,7 @@ static bool paint_stroke_curve_end(bContext *C, wmOperator
*op, PaintStroke *str
return true;
#ifdef DEBUG_TIME
- TIMEIT_START(stroke);
+ TIMEIT_START_AVERAGED(whole_stroke);
#endif
pcp = pc->points;
@@ -1044,7 +1044,7 @@ static bool paint_stroke_curve_end(bContext *C,
wmOperator *op, PaintStroke *str
stroke_done(C, op);
#ifdef DEBUG_TIME
- TIMEIT_END(stroke);
+ TIMEIT_END_AVERAGED(whole_stroke);
#endif
return true;
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