Beware of IOPS without Context

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Over at the StorageIO Blog, Greg Schulz writes that when it comes to benchmarking, IOPS are not a really a valid measure of performance by themselves and without context.

IMHO the most interesting or applicable metrics that matter are those relevant to your environment and application. For example if your main application that needs SSD does about 75% reads (random) and 25% writes (sequential) with an average size of 32K, while fun to hear about, how relevant is a million 64 byte read IOPS? Likewise when looking at IOPS, pay attention to the latency, particular if SSD or performance is your main concern.

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