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Description
block device testing and benchmarking toolkit
blkreplay is a utility driving the block layer of the operating
system while measuring latency and throughput of I/O operations
for later visualisation.
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blkreplay can create artificial loads (random read-write sweeps,
various kinds of overload tests) or replay natural loads which
have been recorded by blktrace or a similar utility run at
production servers.
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blkreplay can be used to test physical hardware, to compare
different brands of hard disks or RAID controllers, to
evaluate the effect of SSD caching, to compare different
block level transports like iSCSI vs Fibrechannel and so on.
