hard20 pts · first answer countsperformance-testingbottleneck-analysisdatabase-performance

High iowait during the test

At peak load, a database server shows 25% user CPU but 60% iowait, and disk queue length is high. What is the likely bottleneck?

A.CPU: the processor is fully used by running queriesB.Disk I/O: the storage cannot keep up with reads and writesC.The network card between the app and the databaseD.Memory on the load generator running the test

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High iowait during the test

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