@Override
	public List<PerfTest> getAllTesting() {
		return getAll(null, config.getRegion(), Status.getTestStatesByCategory(StatusCategory.TESTING));
	}
Filter out {@link PerfTest} whose owner is running another test now..

@param perfTestLists perf test
@return filtered perf test
ngrinder-controller/src/main/java/org/ngrinder/perftest/service/PerfTestService.java