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Improved Dbvt speed slightly.

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This commit is contained in:
id0x1234
2008-09-11 11:23:55 +00:00
parent 8b3270f22f
commit 8c6788ad6a
2 changed files with 40 additions and 58 deletions
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47
src/BulletCollision/BroadphaseCollision/btDbvt.cpp
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@@ -679,8 +679,7 @@ Benchmarking dbvt...
[14] culling(OCL+qsort): 3688 ms (5%),(2221 t/s)
[15] culling(KDOP+qsort): 1139 ms (-1%),(7192 t/s)
[16] insert/remove batch(256): 5092 ms (0%),(823704 bir/s)
[17] btDbvtVolume proximity: 2887 ms (1%)
[18] btDbvtVolume select: 3419 ms (0%)
[17] btDbvtVolume select: 3419 ms (0%)
*/
struct btDbvtBenchmark
@@ -782,7 +781,7 @@ static const btScalar cfgVolumeCenterScale = 100;
static const btScalar cfgVolumeExentsBase = 1;
static const btScalar cfgVolumeExentsScale = 4;
static const int cfgLeaves = 8192;
static const bool cfgEnable = false;
static const bool cfgEnable = true;
//[1] btDbvtVolume intersections
bool cfgBenchmark1_Enable = cfgEnable;
@@ -857,14 +856,10 @@ bool cfgBenchmark16_Enable = cfgEnable;
static const int cfgBenchmark16_BatchCount = 256;
static const int cfgBenchmark16_Passes = 16384;
static const int cfgBenchmark16_Reference = 5138;
//[17] proximity
//[17] select
bool cfgBenchmark17_Enable = cfgEnable;
static const int cfgBenchmark17_Iterations = 8;
static const int cfgBenchmark17_Reference = 2842;
//[18] select
bool cfgBenchmark18_Enable = true;
static const int cfgBenchmark18_Iterations = 4;
static const int cfgBenchmark18_Reference = 3390;
static const int cfgBenchmark17_Iterations = 4;
static const int cfgBenchmark17_Reference = 3390;
btClock wallclock;
printf("Benchmarking dbvt...\r\n");
@@ -1259,32 +1254,6 @@ if(cfgBenchmark17_Enable)
{// Benchmark 17
srand(380843);
btAlignedObjectArray<btDbvtVolume> volumes;
btAlignedObjectArray<btScalar> results;
volumes.resize(cfgLeaves);
results.resize(cfgLeaves);
for(int i=0;i<cfgLeaves;++i)
{
volumes[i]=btDbvtBenchmark::RandVolume(cfgVolumeCenterScale,cfgVolumeExentsBase,cfgVolumeExentsScale);
}
printf("[17] btDbvtVolume proximity: ");
wallclock.reset();
for(int i=0;i<cfgBenchmark17_Iterations;++i)
{
for(int j=0;j<cfgLeaves;++j)
{
for(int k=0;k<cfgLeaves;++k)
{
results[k]=Proximity(volumes[j],volumes[k]);
}
}
}
const int time=(int)wallclock.getTimeMilliseconds();
printf("%u ms (%i%%)\r\n",time,(time-cfgBenchmark17_Reference)*100/time);
}
if(cfgBenchmark18_Enable)
{// Benchmark 18
srand(380843);
btAlignedObjectArray<btDbvtVolume> volumes;
btAlignedObjectArray<int> results;
btAlignedObjectArray<int> indices;
volumes.resize(cfgLeaves);
@@ -1299,9 +1268,9 @@ if(cfgBenchmark18_Enable)
{
btSwap(indices[i],indices[rand()%cfgLeaves]);
}
printf("[18] btDbvtVolume select: ");
printf("[17] btDbvtVolume select: ");
wallclock.reset();
for(int i=0;i<cfgBenchmark18_Iterations;++i)
for(int i=0;i<cfgBenchmark17_Iterations;++i)
{
for(int j=0;j<cfgLeaves;++j)
{
@@ -1313,7 +1282,7 @@ if(cfgBenchmark18_Enable)
}
}
const int time=(int)wallclock.getTimeMilliseconds();
printf("%u ms (%i%%)\r\n",time,(time-cfgBenchmark18_Reference)*100/time);
printf("%u ms (%i%%)\r\n",time,(time-cfgBenchmark17_Reference)*100/time);
}
printf("\r\n\r\n");
}