private static void rebuildPostingListCache(PredicateIndex index) {
        long start = System.currentTimeMillis();
        index.rebuildPostingListCache();
        output.put("Time rebuild posting list cache", System.currentTimeMillis() - start);
    }
A benchmark that tests the indexing and search performance.

@author bjorncs
predicate-search/src/main/java/com/yahoo/search/predicate/benchmarks/PredicateIndexBenchmark.java