There is obviously an overhead for running a monitoring tool in production; VMware wasn't yet able to provide InfoQ with statistics but suggested that the performance cost would be negligible.
显然，在产品中运行性能工具需要很高的代价；但VMware并未向InfoQ透露具体的统计数据，只是说性能损耗可以忽略不计。
The practice shows that the monitoring system has advantages of single structure, low cost and good practical performance, etc.
实践表明，本监测系统具有结构简单，成本低，实用性能好等特点。
The dissertation presents a low-cost, high-performance program about a ship distribution monitoring system based on CAN-bus.
本文提出了一套低成本、高性能的基于CAN总线的船舶配电监测系统方案。
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