Method main

solr/core/src/test/org/apache/solr/util/BitSetPerf.java:47–187

(String[] args)

  }

  public static void main(String[] args) {
    if (args.length < 5) {
      System.out.println("BitSetTest <bitSetSize> <numSets> <numBitsSet> <testName> <iter> <impl>");
      System.out.println("  impl => open for FixedBitSet");
    }
    int bitSetSize = Integer.parseInt(args[0]);
    int numSets = Integer.parseInt(args[1]);
    int numBitsSet = Integer.parseInt(args[2]);
    String test = args[3];
    int iter = Integer.parseInt(args[4]);
    String impl = args.length > 5 ? args[5].intern() : "bit";

    BitSet[] sets = new BitSet[numSets];
    FixedBitSet[] osets = new FixedBitSet[numSets];

    for (int i = 0; i < numSets; i++) {
      sets[i] = new BitSet(bitSetSize);
      osets[i] = new FixedBitSet(bitSetSize);
      randomSets(bitSetSize, numBitsSet, sets[i], osets[i]);
    }

    BitSet bs = new BitSet(bitSetSize);
    FixedBitSet obs = new FixedBitSet(bitSetSize);
    randomSets(bitSetSize, numBitsSet, bs, obs);

    long ret = 0;

    final RTimer timer = new RTimer();

    if ("union".equals(test)) {
      for (int it = 0; it < iter; it++) {
        for (int i = 0; i < numSets; i++) {
          if (impl.equals("open")) {
            FixedBitSet other = osets[i];
            obs.or(other);
          } else {
            BitSet other = sets[i];
            bs.or(other);
          }
        }
      }
    }

    if ("cardinality".equals(test)) {
      for (int it = 0; it < iter; it++) {
        for (int i = 0; i < numSets; i++) {
          if (impl.equals("open")) {
            ret += osets[i].cardinality();
          } else {
            ret += sets[i].cardinality();
          }
        }
      }
    }

    if ("get".equals(test)) {
      for (int it = 0; it < iter; it++) {
        for (int i = 0; i < numSets; i++) {