Perftest.java

import org.rrd4j.core.jrrd.ConsolidationFunctionType;
import org.rrd4j.core.jrrd.DataChunk;
import org.rrd4j.core.jrrd.RRDatabase;

import java.util.Calendar;
import java.util.GregorianCalendar;

/**
 * @author Stepan Koltsov
 */
public class Perftest {

    public static void main(String[] args) throws Exception {
        long start = System.currentTimeMillis();
        long end;
        do {
            long iterationStart = System.currentTimeMillis();
            iteration();
            end = System.currentTimeMillis();
            long d = end - iterationStart;
            System.out.println(d + "ms per iteration");
        } while (end - start < 20000);
    }

    private static void iteration() throws Exception {
        RRDatabase rrd = new RRDatabase("0.rrd");

        Calendar endCal = new GregorianCalendar(2013, 12, 31);
        Calendar startCal = new GregorianCalendar(2013, 10, 31);

        DataChunk data = rrd.getData(ConsolidationFunctionType.AVERAGE, startCal.getTimeInMillis() / 1000, endCal.getTimeInMillis() / 1000, 1L);
    }

}