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package org.graalvm.polybench;
import java.util.Optional;
class PeakTimeMetric implements Metric {
long startTime;
long endTime;
long totalTime;
int totalIterations;
PeakTimeMetric() {
this.totalTime = 0L;
}
@Override
public void beforeIteration(boolean warmup, int iteration, Config config) {
startTime = System.nanoTime();
}
@Override
public void afterIteration(boolean warmup, int iteration, Config config) {
endTime = System.nanoTime();
totalTime += endTime - startTime;
totalIterations++;
}
@Override
public void reset() {
startTime = 0L;
endTime = 0L;
totalTime = 0L;
totalIterations = 0;
}
@Override
public Optional<Double> reportAfterIteration(Config config) {
return Optional.of((endTime - startTime) / 1_000_000.0);
}
@Override
public Optional<Double> reportAfterAll() {
return Optional.of(1.0 * totalTime / totalIterations / 1_000_000.0);
}
@Override
public String unit() {
return "ms";
}
@Override
public String name() {
return "peak time";
}
}