@Override
  protected final void postSetUp() throws Exception {
    diskProps.setDiskDirs(dirs);
  }
Consolidated Disk Region Perftest. Overflow, Persist, OverflowWithPersist modes are tested for
Sync, AsyncWithBuffer and AsyncWithoutBufer writes.
geode-core/src/performanceTest/java/org/apache/geode/internal/cache/diskPerf/DiskRegionPerfJUnitPerformanceTest.java