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理解iops

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IOPS和数据吞吐量适用于不同的场合:
读取10000个1KB文件,用时10秒 Throught(吞吐量)=1MB/s ,IOPS=1000 追求IOPS
读取1个10MB文件,用时0.2秒 Throught(吞吐量)=50MB/s, IOPS=5 追求吞吐量


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