private boolean isOverLowTpsThreshold() {
		return (System.currentTimeMillis() - lastMomentWhenErrorsMoreThanHalfOfTotalTPSValue) >= TOO_MANY_ERROR_TIME;
	}
Check if too many error has been occurred. If the half of total
transaction is error for the last 10 secs. It notifies the
{@link SingleConsole.ConsoleShutdownListener}

@param cumulativeStatistics accumulated Statistics
ngrinder-controller/src/main/java/org/ngrinder/perftest/service/samplinglistener/TooManyErrorCheckPlugin.java