private static void logBenchmarkResult(String testName, long numTests, long totalTime) {
    float tsec = totalTime / 1000.0f;
    LOG.info(String.format("%s took %.3fs %.3fops/s", testName, tsec, numTests / tsec));

  }
Verify the content of the WAL file. Verify that the file has expected number of edits.
@param wals may not be null
@return Count of edits.
hbase-diagnostics/src/main/java/org/apache/hadoop/hbase/wal/WALPerformanceEvaluation.java