NAME

iogen - Generate I/O Requests

IMPLEMENTATION

All Cray Research systems

iogen

Iogen is one of the device-beater tools.

Options:

-f [opt]: open flags: raw, sync, ssd, ldraw, buffered
-i [opt]: Number of iterations to run. 0 implies infinite.
-q
-m [opt]: Offset mode. One of: random, sequential, reverse.
-o: Overlap flag.
-p [opt]: output pipe (default is stdout)
-r [opt]: specify raw io multiple instead of getting it from the mounted on device. Only applies to regular files.
-s [opt]: System calls to use for I/O. A list of: read, write, reada, writea, ssread, sswrite
-t [opt]: min transfer size
-T [opt]: max transfer size

Mark Maule wrote the code.
Glen Overby wrote the man page.

See "Features".