private double _peakMemoryUsage = 0.0d;
private Runtime _runtime;
private ERXUnitAwareDecimalFormat _decimalFormatter;
public Stats() {
_decimalFormatter = new ERXUnitAwareDecimalFormat(ERXUnitAwareDecimalFormat.BYTE);
_decimalFormatter.setMaximumFractionDigits(2);
_runtime = Runtime.getRuntime();
updateMemoryUsage();
}