John D. Smerdon writes:
>Config: NetBSD 1.2_BETA from a couple weeks ago, Pentium 90, 32MB memory,
>single 2940, two 4GB disks with root on sd0a, swap on sd0b and sd1b, /usr
>ccd'ed over both disks, and /news ccd'ed over both disks.

If I were you, i'd get a 1GB disk and put everything but news on it
(/, /usr, swap).  I'd also put /news on it's own disk(s) or stripe it
with ccd over the two 4G disks.  If that's still not fast enough, I'd
put /news/etc on it's own disk.

I'm not sure about the performance of the 2940 driver.  Perhaps you
wan't to put the news disks on a BusLogic adapter.  That solved a
rather similar sounding problem for the INN FAQ maintainer earlier
this year.

But, first, I'd get more RAM.

># pstat -s
>Device      1K-blocks     Used    Avail Capacity  Type
>/dev/sd0b      133760    30072   103688    22%    Interleaved
>/dev/sd1b      133760    31216   102544    23%    Interleaved

Depending on whether you experience the so called "swap leak" bug or
not, I'd say you are lacking between 40 and 60 MB RAM.

># vmstat -w 5 sd0 sd1 ccd0 ccd1
> procs   memory     page                    disks         faults   cpu
> r b w   avm   fre  flt  re  pi  po  fr  sr s0 s1 c0 c1   in   sy  cs us sy id
> 0 1 0 70608  1664    3   0   0   0   0   0 40 42 11 64    0  102  77  3  5 92
> 0 2 0 80000  1664    3   0   0   0   0   0 36 36  6 58    0  170  89  4  7 89
[...]
> 1 0 0 89948  1300   15   3   0   0   0   0 39 41 11 59    0  140 128  4  5 92
> 0 2 0 99340  1300   13   3   0   0   0   0 38 41 10 57    0  151 110  4  6 90
> 0 0 0 94472  1664    4   0   0   0   0   0 35 32 15 45    0  116 103  4  4 92
> 0 0 0 94472  1664    3   0   0   0   0   0 35 40 13 54    0  109  77  4  5 90

Seems like you need aboute 60MB more RAM.  Also, it seems like your
disks are maxed out.  Both are doing between 35 and 40 I/Os per
second which is quite high and your SCSI controller is handling
about 80 I/Os per second which is high too.



-- 
Christoph Badura	bad@flatlin.ka.sub.org

You don't need to quote my .signature.  Everyone has seen it by now.
Besides, it doesn't add anything to the current thread.