public String toRecordString() {
		StringBuilder sb = new StringBuilder();
		sb.append(ip).append(",").append(system).append(",");
		sb.append(DateUtils.getCollectTimeInLong(new Date(getCollectTime()))).append(",").append(freeMemory).append(",");
		sb.append(totalMemory).append(",").append(cpuUsedPercentage);
		if (bandWidth != null) {
			sb.append(",").append(bandWidth.getReceivedPerSec()).append(",").append(bandWidth.getSentPerSec());
		}
		if (customValues != null) {
			sb.append(",").append(customValues);
		}
		return sb.toString();
	}
Get record string.

@return record string
ngrinder-core/src/main/java/org/ngrinder/monitor/share/domain/SystemInfo.java