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| author | Darkvater <darkvater@openttd.org> | 2006-03-26 21:15:09 +0000 |
|---|---|---|
| committer | Darkvater <darkvater@openttd.org> | 2006-03-26 21:15:09 +0000 |
| commit | a91c52e16909976b40951cf2893f2349e9ebf25d (patch) | |
| tree | 07ce18ba583aad9caf062c352c2632ba1ea394c6 /train_cmd.c | |
| parent | 4125aa21f8dfc72a60bf70b890b95c2187425112 (diff) | |
| download | openttd-a91c52e16909976b40951cf2893f2349e9ebf25d.tar.xz | |
(svn r4125) - Feature: Add a general TIC() TOC() mechanism using rdtsc or something similar on non-i386 architectures to performance-tune (critical) code. Some systems are probably missing, but those can be added later.
Diffstat (limited to 'train_cmd.c')
| -rw-r--r-- | train_cmd.c | 30 |
1 files changed, 2 insertions, 28 deletions
diff --git a/train_cmd.c b/train_cmd.c index 245f37e3e..e5fd26772 100644 --- a/train_cmd.c +++ b/train_cmd.c @@ -2087,29 +2087,6 @@ static const byte _search_directions[6][4] = { }; static const byte _pick_track_table[6] = {1, 3, 2, 2, 0, 0}; -#ifdef PF_BENCHMARK -#if !defined(_MSC_VER) -unsigned int _rdtsc() -{ - unsigned int high, low; - - __asm__ __volatile__ ("rdtsc" : "=a" (low), "=d" (high)); - return low; -} -#else -#ifndef _M_AMD64 -static unsigned int _declspec(naked) _rdtsc(void) -{ - _asm { - rdtsc - ret - } -} -#endif -#endif -#endif - - /* choose a track */ static byte ChooseTrainTrack(Vehicle* v, TileIndex tile, DiagDirection enterdir, TrackdirBits trackdirbits) @@ -2117,8 +2094,7 @@ static byte ChooseTrainTrack(Vehicle* v, TileIndex tile, DiagDirection enterdir, TrainTrackFollowerData fd; uint best_track; #ifdef PF_BENCHMARK - int time = _rdtsc(); - static float f; + TIC() #endif assert((trackdirbits & ~0x3F) == 0); @@ -2171,9 +2147,7 @@ static byte ChooseTrainTrack(Vehicle* v, TileIndex tile, DiagDirection enterdir, } #ifdef PF_BENCHMARK - time = _rdtsc() - time; - f = f * 0.99 + 0.01 * time; - printf("PF time = %d %f\n", time, f); + TOC("PF time = ", 1) #endif return best_track; |