rogue_(_at_)_ngxweb_(_dot_)_com wrote:
> The point of this message is to find out if there is anything I can do to
> make OBSD faster in changing maps.
>
> I have enabled softupdates, enabled dummy_nops in the kernel...stripped out
> any unneeded drivers/options (NFS, quotas, etc.) and from what I
> understand, dirprefs is enabled by default.
>
> I have searched for and read all documentation on performance tunning that
> I could find...with that in mind, the I would be happy to hear any
> suggestions anyone may have.
Have you tried mounting the drive asychronously? Linux (and possibly
FreeBSD) mounts drives asynchronously, while OpenBSD mounts
synchronously. This slows down disk IO in exchange for increasing
recoverability. See FAQ 11.5
(http://www.openbsd.org/faq/faq11.html#11.5).
I'd suggest setting aside a partition for the maps, or (if you can't
get just the maps on there) the whole HL/CS data, and mounting that
partition (and only that partition) asychronously.