fio src b8df42d624ab8874bf39a0363b97cf7f8373e61ae9a1a68e1953e9f901e8fa67 A flexible I/O tester/benchmarker fio is an I/O tool meant to be used both for benchmark and stress/hardware verification. It has support for 9 different types of I/O engines (sync, mmap, libaio, posixaio, SG v3, splice, null, network, syslet), I/O priorities (for newer Linux kernels), rate I/O, forked or threaded jobs, and much more. It can work on block devices as well as files. fio accepts job descriptions in a simple-to-understand text format. Several example job files are included. fio displays all sorts of I/O performance information. It supports Linux, FreeBSD, and OpenSolaris. angrypenguin <angrypenguinpoland@gmail.com> https://github.com/axboe/fio