@Test
    void testBigLoadAndPurgeForPerfTesting() {

        // Wait for visualvm to spin up
        try {
            Thread.sleep(0_000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }

        doBigLoadGetAndPurgeForPerfTesting(5, true, false, true, true);
    }
Make entryCount very big for manual performance testing or profiling
50_000 takes about 4mins and makes a 250Mb db file.
stroom-pipeline/src/test/java/stroom/pipeline/refdata/store/offheapstore/TestRefDataOffHeapStore.java