On linux I used: echo 60000 > /proc/sys/vm/dirty_expire_centisecs
to change the interval of pdflush to 10 minutes. This way in combination with a harddisk spindown of 120 seconds, I could save a lot of battery power on my low power system. Is there a way to do the same for an openbsd system? The harddisk spindown is not the problem, I can use "atactl /dev/wd0 setstandby 120" for that. Jan
