private static BandWidth getBandWidth(long rx, long tx) {
		BandWidth bandWidth = new BandWidth(currentTimeMillis());
		bandWidth.setReceived(bandWidth.getReceived() + rx);
		bandWidth.setSent(bandWidth.getSent() + tx);
		return bandWidth;
	}
Utilities for get system information.

@since 3.5.1
ngrinder-core/src/main/java/org/ngrinder/common/util/SystemInfoUtils.java