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/*
* Copyright 2012 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "TimerData.h"
#include "BenchTimer.h"
#include <limits>
using namespace std;
TimerData::TimerData(int maxNumTimings)
: fMaxNumTimings(maxNumTimings)
, fCurrTiming(0)
, fWallTimes(maxNumTimings)
, fTruncatedWallTimes(maxNumTimings)
, fCpuTimes(maxNumTimings)
, fTruncatedCpuTimes(maxNumTimings)
, fGpuTimes(maxNumTimings){
}
bool TimerData::appendTimes(BenchTimer* timer) {
SkASSERT(timer != NULL);
if (fCurrTiming >= fMaxNumTimings) {
return false;
}
fWallTimes[fCurrTiming] = timer->fWall;
fTruncatedWallTimes[fCurrTiming] = timer->fTruncatedWall;
fCpuTimes[fCurrTiming] = timer->fCpu;
fTruncatedCpuTimes[fCurrTiming] = timer->fTruncatedCpu;
fGpuTimes[fCurrTiming] = timer->fGpu;
++fCurrTiming;
return true;
}
SkString TimerData::getResult(const char* doubleFormat,
Result result,
const char *configName,
uint32_t timerFlags,
int itersPerTiming) {
SkASSERT(itersPerTiming >= 1);
if (!fCurrTiming) {
return SkString("");
}
int numTimings = fCurrTiming;
SkString wallStr(" msecs = ");
SkString truncWallStr(" Wmsecs = ");
SkString cpuStr(" cmsecs = ");
SkString truncCpuStr(" Cmsecs = ");
SkString gpuStr(" gmsecs = ");
double wallMin = std::numeric_limits<double>::max();
double truncWallMin = std::numeric_limits<double>::max();
double cpuMin = std::numeric_limits<double>::max();
double truncCpuMin = std::numeric_limits<double>::max();
double gpuMin = std::numeric_limits<double>::max();
double wallSum = 0;
double truncWallSum = 0;
double cpuSum = 0;
double truncCpuSum = 0;
double gpuSum = 0;
for (int i = 0; i < numTimings; ++i) {
if (kPerIter_Result == result) {
wallStr.appendf(doubleFormat, fWallTimes[i] / itersPerTiming);
truncWallStr.appendf(doubleFormat, fTruncatedWallTimes[i] / itersPerTiming);
cpuStr.appendf(doubleFormat, fCpuTimes[i] / itersPerTiming);
truncCpuStr.appendf(doubleFormat, fTruncatedCpuTimes[i] / itersPerTiming);
gpuStr.appendf(doubleFormat, fGpuTimes[i] / itersPerTiming);
if (i != numTimings - 1) {
static const char kSep[] = ", ";
wallStr.append(kSep);
truncWallStr.append(kSep);
cpuStr.append(kSep);
truncCpuStr.append(kSep);
gpuStr.append(kSep);
}
} else if (kMin_Result == result) {
wallMin = SkTMin(wallMin, fWallTimes[i]);
truncWallMin = SkTMin(truncWallMin, fTruncatedWallTimes[i]);
cpuMin = SkTMin(cpuMin, fCpuTimes[i]);
truncCpuMin = SkTMin(truncCpuMin, fTruncatedCpuTimes[i]);
gpuMin = SkTMin(gpuMin, fGpuTimes[i]);
} else {
SkASSERT(kAvg_Result == result);
wallSum += fWallTimes[i];
truncWallSum += fTruncatedWallTimes[i];
cpuSum += fCpuTimes[i];
truncCpuSum += fTruncatedCpuTimes[i];
}
// We always track the GPU sum because whether it is non-zero indicates if valid gpu times
// were recorded at all.
gpuSum += fGpuTimes[i];
}
if (kMin_Result == result) {
wallStr.appendf(doubleFormat, wallMin / itersPerTiming);
truncWallStr.appendf(doubleFormat, truncWallMin / itersPerTiming);
cpuStr.appendf(doubleFormat, cpuMin / itersPerTiming);
truncCpuStr.appendf(doubleFormat, truncCpuMin / itersPerTiming);
gpuStr.appendf(doubleFormat, gpuMin / itersPerTiming);
} else if (kAvg_Result == result) {
int divisor = numTimings * itersPerTiming;
wallStr.appendf(doubleFormat, wallSum / divisor);
truncWallStr.appendf(doubleFormat, truncWallSum / divisor);
cpuStr.appendf(doubleFormat, cpuSum / divisor);
truncCpuStr.appendf(doubleFormat, truncCpuSum / divisor);
gpuStr.appendf(doubleFormat, gpuSum / divisor);
}
SkString str;
str.printf(" %4s:", configName);
if (timerFlags & kWall_Flag) {
str += wallStr;
}
if (timerFlags & kTruncatedWall_Flag) {
str += truncWallStr;
}
if (timerFlags & kCpu_Flag) {
str += cpuStr;
}
if (timerFlags & kTruncatedCpu_Flag) {
str += truncCpuStr;
}
if ((timerFlags & kGpu_Flag) && gpuSum > 0) {
str += gpuStr;
}
return str;
}
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