private static Statistics createStatistics(LongSummaryStatistics stats) {
boolean some = stats.getCount() > 0L;
return new Statistics() {
@Override
public long getCount() {
return stats.getCount();
}
@Override
public Duration getMaximum() {
return some ? Duration.ofNanos(stats.getMax()) : Duration.ZERO;
}
@Override
public Duration getMinimum() {
return some ? Duration.ofNanos(stats.getMin()) : Duration.ZERO;
}
@Override
public Duration getTotal() {
return some ? Duration.ofNanos(stats.getSum()) : Duration.ZERO;
}
@Override
public Duration getAverage() {
return some ? Duration.ofNanos((long) stats.getAverage()) : Duration.ZERO;
}
private String fixedLengthSeconds(Duration duration) {
double seconds = duration.toNanos() * 1e-9;
String result = new DecimalFormat("##0.00000").format(seconds) + "s";
if (result.length() == 8) return " " + result;
if (result.length() == 9) return " " + result;
return result;
}
private String fixedLength(long count) {
String result = new DecimalFormat("###0").format(count);
if (result.length() == 1) return " " + result;
if (result.length() == 2) return " " + result;
if (result.length() == 3) return " " + result;
return result;
}
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append(fixedLengthSeconds(getTotal()) + " total;");
sb.append(fixedLength(getCount()) + " samples;");
sb.append(fixedLengthSeconds(getAverage()) + " avg;");
sb.append(fixedLengthSeconds(getMinimum()) + " min;");
sb.append(fixedLengthSeconds(getMaximum()) + " max");
return sb.toString();
}
};
}
private static void printStatisticTime(
GraalTruffleRuntime rt, String label, LongSummaryStatistics value) {
rt.log(
String.format(
" %-50s: count=%4d, sum=%8d, min=%8d, average=%12.2f, max=%8d (milliseconds)",
label,
value.getCount(),
value.getSum() / 1000000,
value.getMin() / 1000000,
value.getAverage() / 1e6,
value.getMax() / 1000000));
}