RoaringBitMap Benchmark with jbang based on https://xam.dk/blog/jbang-reproducers/

BitMapOpsComparision.java

//JAVA 20
//DEPS org.roaringbitmap:RoaringBitmap:0.9.45
//DEPS org.openjdk.jmh:jmh-generator-annprocess:1.36

package de.jexp.rbm;

import org.openjdk.jmh.annotations.*;
import org.roaringbitmap.RoaringBitmap;
import java.util.BitSet;

@State(Scope.Thread)
public class BitMapOpsComparision {
    private final static int BM_SIZE = 20_000_000;
    private RoaringBitmap rbm1;
    private RoaringBitmap rbm2;
    private BitSet bs1;
    private BitSet bs2;

    public static void main(String[] args) throws Exception {
       org.openjdk.jmh.Main.main(args);
    }

    @Setup
    public void setup() {
        rbm1 = RoaringBitmap.bitmapOfRange(0, BM_SIZE/2);
        rbm2 = RoaringBitmap.bitmapOfRange(BM_SIZE/2,BM_SIZE);

        bs1 = new BitSet(BM_SIZE);
        bs1.set(0, BM_SIZE/2);

        bs2 = new BitSet(BM_SIZE);
        bs2.set(BM_SIZE/2, BM_SIZE);
    }
    @Benchmark
    public RoaringBitmap rbmOR() {
        return RoaringBitmap.or(rbm1, rbm2);
    }
    @Benchmark
    public BitSet bsOR() {
        BitSet result = (BitSet) bs1.clone();
        result.or(bs2);
        return result;
    }
    @Benchmark
    public RoaringBitmap rbmAND() {
        return RoaringBitmap.and(rbm1, rbm2);
    }
    @Benchmark
    public BitSet bsAND() {
        BitSet result = (BitSet) bs1.clone();
        result.and(bs2);
        return result;
    }
    @Benchmark
    public RoaringBitmap rbmAND_NOT() {
        return RoaringBitmap.andNot(rbm1, rbm2);
    }
    @Benchmark
    public BitSet bsAND_NOT() {
        BitSet result = (BitSet) bs1.clone();
        result.andNot(bs2);
        return result;
    }
    @Benchmark
    public RoaringBitmap rbmXOR() {
        return RoaringBitmap.xor(rbm1, rbm2);
    }
    @Benchmark
    public BitSet bsXOR() {
        BitSet result = (BitSet) bs1.clone();
        result.xor(bs2);
        return result;
    }
}