# hdparm

hdparm -tT
Nem ad 100%-os pontosságot a valósághoz képest, de azért valami.
ui.: The -T option takes advantage of the Linux disk cache and gives an indication of how much information the system could read from a disk if the disk were fast enough to keep up. The -t option also reads the disk through the cache, but without any precaching of results. Thus -t can give an idea of how fast a disk can deliver information stored sequentially on disk.