Version 0.9 gains some functionality that allows it to be used as a quick and dirty random I/O generator. Seekmark does a good job of pounding your disk as hard as possible in all-or-nothing fashion, but now you can specify a delay to insert between seeks to reduce the load, in order to simulate some scenario. For example you may want to test performance of some other application while the system is semi-busy doing random I/O on a database file, or you may want to test shared storage between multiple hosts where one host has 4 processes doing 64k random reads every 20ms and another host has 2 processes, one doing busy 4k random writes as fast as possible and the other doing 128k reads every 50ms.
With this, is a new -e option, that runs seekmark in endless mode. That is, it will simply run until it’s killed.
As usual, see the seekmark page, linked at the top of the blog.