On Jan 6, 2009, at 11:12 AM 1/6/, Bob Friesenhahn wrote: > On Tue, 6 Jan 2009, Keith Bierman wrote: > >> Do you get the same sort of results from /dev/random? > > /dev/random is very slow and should not be used for benchmarking. > Not directly, no. But copying from /dev/random to a real file and using that should provide better insight than all zeros or all ones (I have seen "clever" devices optimize things away).
Tests like bonnie are probably a better bet than rolling one's own; although the latter is good for building intuition ;> -- Keith H. Bierman khb...@gmail.com | AIM kbiermank 5430 Nassau Circle East | Cherry Hills Village, CO 80113 | 303-997-2749 <speaking for myself*> Copyright 2008 _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
