virtual bool sample()
{
GLuint counterIndex, unused;
UINT64 events, cycles;
// Sample the GPU counters
NVPMSample(NULL, &unused);
// Retrieve the current sample values
for (counterIndex = 0;
counterIndex < m_counterIndexArrayCount;
counterIndex++)
{
NVPMGetCounterValue(m_counterIndexArray[counterIndex], 0, &events, &cycles);
m_counterValues[counterIndex][m_counterValuesRRIndex] =
100.0f * float(events) / float(cycles);
}
m_counterValuesRRIndex++;
if (m_counterValuesRRIndex >= bufferEntryCount) {
m_counterValuesRRIndex = 0;
}
return true;
}
void app::perf::step(bool log)
{
if (val && avg)
{
// Sample the current counter values.
NVPMSample(val, &num);
// Accumulate running totals.
for (UINT i = 0; i < num; ++i)
{
avg[i].ulValue += val[i].ulValue;
avg[i].ulCycles += val[i].ulCycles;
}
// Dump averages.
if (tot++ == lim) dump(log);
}
}
