Just a very pedantic IO test that goes through a long list of permutations of IO buffer sizes, counts and IO modes and finds the one that delivers the highest r

Just a very pedantic IO test that goes through a long list of permutations of IO buffer sizes, counts and IO modes and finds the one that delivers the highest read/write rate. Basically, it estimates maximum IO rates realistically achievable by a userspace process, as opposed to a physical read/write rate at a disk level, which can be (misleadingly) higher. The theory is over at https://ccsiobench.com/fast-bulk-io https://ccsiobench.com/fast-bulk-io --- NVMe drive from my test box - https://ccsiobench.com/s/UAr3f https://ccsiobench.com/s/UAr3f SSD in USB3 enclosure - https://ccsiobench.com/s/UAtNj https://ccsiobench.com/s/UAtNj TrueCrypt volume on the same - https://ccsiobench.com/s/UAxmh https://ccsiobench.com/s/UAxmh