hm, if it was me, I'd write a small C program that just jumped
directly on the device around and did random writes assuming it wasn't
formatted. For sequential read, just flush caches and dd the device
to /dev/null. Probably someone will suggest better tools though.
I have a program I wrote years ago for a purpose like this. One of the
things it can
do is write to the filesystem at the same time as dirtying pages in a
large shared
or non-shared memory region. The idea was to emulate the behavior of a
database
reasonably accurately. Something like bonnie++ would probably be a good
starting
point these days though.
--
Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-performance
