double rate = 1000 * (double)numMessages / (end - start);
JournalImplTestUnit.log.info("Rate " + rate + " records/sec");
journal.stop();
journal = new JournalImpl(10 * 1024 * 1024, numFiles, 0, 0, getFileFactory(), "hornetq-data", "hq", 5000);
journal.start();
journal.load(new ArrayList<RecordInfo>(), null, null);