On Tue, May 11, 2010, Steve Shockley wrote: > I also ran Jeff Ross' first dd test:
Sorry, but that's almost completely irrelevant for an MTA. The important part for an MTA is IOPs. An MTA has to open/write/close/sync queue files at a high rate, which means the number of FS meta operations is important. You can look at postfix's fsstone, or the perf/ subdirectory of the MeTA1 distribution for test programs. Unfortunately OpenBSD's FS isn't the fastest for this kind of operations but it is more than fast enough for your requirements (unless something is wrong with the disk driver or your setup). You might want get Nick Christenson's book about sendmail performance tuning (http://www.jetcafe.org/npc/book/sendmail/) for a lot of insight.
