S

S copied to clipboard

Small collection of benchmarks for storage I/O - Version 3.6

This suite evaluates:

• responsiveness, by measuring start-up times of real applications under configurable background workloads
• latency for soft real-time applications, by measuring playback quality (drop rate) of video and audio under configurable background workloads
• speed of code-development tasks (make, git checkout, git merge, git grep) under configurable background workloads, plus responsiveness while one of these dev tasks is executed
• minimum per-client bandwidth guaranteed to a set of clients doing configurable types of I/O
• maximum per-client latency guaranteed to a set of clients doing configurable types of I/O
• throughput with processes doing filesystem or raw I/O in parallel (figure of merit measured by many other suites too)
• throughput with processes doing interleaved I/O, which mimics the typical I/O pattern of applications like qemu
• efficiency of block layer and I/O schedulers in terms of maximum number of IOPS supported (this functionality makes it easy to profile the desired component of the block layer)

See USAGE-INSTALLATION for all details. In particular, that file also contains a quick but complete example of use.