server_common/recastnavigation_v1.6.0
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Fix time measuring on Windows

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The demo relied on the build context returning accumulated times in
microseconds. On Windows this was using QueryPerformanceCounter directly
which has a higher resolution, thus returning wrong measured times. We
now report the accumulated times in microseconds on all platforms.
This commit is contained in:
Jakob Botsch Nielsen 2016-01-10 18:43:34 +01:00
parent ac0316e6a8
commit 09080b5272
6 changed files with 12 additions and 13 deletions
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2
RecastDemo/Include/PerfTimer.h
View File

@ -27,6 +27,6 @@ typedef __int64 TimeVal;
#endif
TimeVal getPerfTime();
int getPerfDeltaTimeUsec(const TimeVal start, const TimeVal end);
int getPerfTimeUsec(const TimeVal duration);
#endif // PERFTIMER_H

2
RecastDemo/Include/SampleInterfaces.h
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@ -30,7 +30,7 @@
class BuildContext : public rcContext
{
TimeVal m_startTime[RC_MAX_TIMERS];
int m_accTime[RC_MAX_TIMERS];
TimeVal m_accTime[RC_MAX_TIMERS];
static const int MAX_MESSAGES = 1000;
const char* m_messages[MAX_MESSAGES];

2
RecastDemo/Source/CrowdTool.cpp
View File

@ -854,7 +854,7 @@ void CrowdToolState::updateTick(const float dt)
m_agentDebug.vod->normalizeSamples();
m_crowdSampleCount.addSample((float)crowd->getVelocitySampleCount());
m_crowdTotalTime.addSample(getPerfDeltaTimeUsec(startTime, endTime) / 1000.0f);
m_crowdTotalTime.addSample(getPerfTimeUsec(endTime - startTime) / 1000.0f);
}

9
RecastDemo/Source/PerfTimer.cpp
View File

@ -30,13 +30,12 @@ TimeVal getPerfTime()
return count;
}
int getPerfDeltaTimeUsec(const TimeVal start, const TimeVal end)
int getPerfTimeUsec(const TimeVal duration)
{
static __int64 freq = 0;
if (freq == 0)
QueryPerformanceFrequency((LARGE_INTEGER*)&freq);
__int64 elapsed = end - start;
return (int)(elapsed*1000000 / freq);
return (int)(duration*1000000 / freq);
}
#else
@ -52,9 +51,9 @@ TimeVal getPerfTime()
return (TimeVal)now.tv_sec*1000000L + (TimeVal)now.tv_usec;
}
int getPerfDeltaTimeUsec(const TimeVal start, const TimeVal end)
int getPerfTimeUsec(const TimeVal duration)
{
return (int)(end - start);
return (int)duration;
}
#endif

2
RecastDemo/Source/SampleInterfaces.cpp
View File

@ -79,7 +79,7 @@ void BuildContext::doStopTimer(const rcTimerLabel label)
int BuildContext::doGetAccumulatedTime(const rcTimerLabel label) const
{
return m_accTime[label];
return getPerfTimeUsec(m_accTime[label]);
}
void BuildContext::dumpLog(const char* format, ...)

8
RecastDemo/Source/TestCase.cpp
View File

@ -215,7 +215,7 @@ void TestCase::doTests(dtNavMesh* navmesh, dtNavMeshQuery* navquery)
navquery->findNearestPoly(iter->epos, polyPickExt, &filter, &endRef, iter->nepos);
TimeVal findNearestPolyEnd = getPerfTime();
iter->findNearestPolyTime += getPerfDeltaTimeUsec(findNearestPolyStart, findNearestPolyEnd);
iter->findNearestPolyTime += getPerfTimeUsec(findNearestPolyEnd - findNearestPolyStart);
if (!startRef || ! endRef)
continue;
@ -228,7 +228,7 @@ void TestCase::doTests(dtNavMesh* navmesh, dtNavMeshQuery* navquery)
navquery->findPath(startRef, endRef, iter->spos, iter->epos, &filter, polys, &iter->npolys, MAX_POLYS);
TimeVal findPathEnd = getPerfTime();
iter->findPathTime += getPerfDeltaTimeUsec(findPathStart, findPathEnd);
iter->findPathTime += getPerfTimeUsec(findPathEnd - findPathStart);
// Find straight path
if (iter->npolys)
@ -238,7 +238,7 @@ void TestCase::doTests(dtNavMesh* navmesh, dtNavMeshQuery* navquery)
navquery->findStraightPath(iter->spos, iter->epos, polys, iter->npolys,
straight, 0, 0, &iter->nstraight, MAX_POLYS);
TimeVal findStraightPathEnd = getPerfTime();
iter->findStraightPathTime += getPerfDeltaTimeUsec(findStraightPathStart, findStraightPathEnd);
iter->findStraightPathTime += getPerfTimeUsec(findStraightPathEnd - findStraightPathStart);
}
// Copy results
@ -270,7 +270,7 @@ void TestCase::doTests(dtNavMesh* navmesh, dtNavMeshQuery* navquery)
navquery->raycast(startRef, iter->spos, iter->epos, &filter, &t, hitNormal, polys, &iter->npolys, MAX_POLYS);
TimeVal findPathEnd = getPerfTime();
iter->findPathTime += getPerfDeltaTimeUsec(findPathStart, findPathEnd);
iter->findPathTime += getPerfTimeUsec(findPathEnd - findPathStart);
if (t > 1)
{