> I can dd if=/dev/ad[n].eli of=/dev/null bs=1m and use 75% system
> all in geli, 27% disk busy, 20MiB/sec. Interface was slower but
> reasonable.
I think I understand now. You're doing encryption in the kernel,
which eats a lot of cpu, and nice only affects userland. So yeah
cpu is a significan
> Are you *sure* that the cpu is your bottleneck?
Well, I've got a gig free in /usr/local which is ufs2+softdeps. So
I just dd if=dev/zero bs=1m of=zero there. Disk was 100% busy, cpu
was 10-15% system, 10% user, about 16MiB/sec.
Of course since that is my system spindle, and it was busied out
by
