 iostat on an Apple MacBook Pro running Mac OS X, with a single hard disk | |
| Developer(s) | AT&T Bell Laboratories |
|---|---|
| Initial release | January 1979 |
| Operating system | Unix and Unix-like |
| Type | Command |
iostat (input/output statistics) is a computer system monitor tool used to collect and show operating system storage input and output statistics. It is often used to identify performance issues with storage devices, including local disks, or remote disks accessed over network file systems such as NFS. It can also be used to provide information about terminal (TTY) input and output, [1] and also includes some basic CPU information.
- ^ Solaris System Performance Management (D.2 ed.), Sun Microsystems Enterprise Services, 2002, pp. 2–10