dan@maccs.McMaster.CA (Dan Trottier) (07/07/88)
I'm not sure if this is the correct forum for this kind of question
but here goes anyway.
We have a Sun 4/280 running Sun OS3.2-4 and have had very few problems
with it. Today for the second time since we received the machine I noticed
that almost all the processes were being swapped! I can't seem to find
what is causing this erratic behaviour.
The output from vmstat shows that there is at least one process that is
I/O blocked. Here is the output from vmstat:
procs memory page disk faults cpu
r b w avm fre re at pi po fr de sr x0 x1 x2 x3 in sy cs us sy id
0 3 0 194412176 0 0 0 0 0 728 0 2 0 0 0 8 23 8 29 1 69
1 1 0 231211792 0 0 0 0 0 536 0 12 0 0 0 32 617 49 70 14 17
1 1 0 231211792 0 0 0 0 0 400 0 12 0 0 0 23 403 40 78 8 14
0 2 0 214411648 0 0 0 0 0 400 0 13 0 0 0 22 302 35 77 7 16
0 2 0 214411648 0 0 0 0 0 296 0 11 0 0 0 19 241 34 79 9 12
1 1 0 214411672 0 1 0 0 0 336 0 15 0 0 0 30 232 43 74 8 18
1 1 0 195211632 0 1 16 0 0 576 0 36 0 0 0 39 156 49 19 9 73
It looks like the system interrupt level is pretty high and at the moment there
are only 4 people using the machine. The last time this happened I had to
reboot the machine to bring it back to normal. Today I'm going to wait for
a while to see what happens.
By the way how many of you have received Sun OS4.0? I would have thought we
would have seen it by now! Does it really improve system performance like
some of the rumors say?
Thanks,
dan
--
A.I. - is a three toed sloth! | ...!uunet!mnetor!maccs!dan
-- Official scrabble players dictionary -- | dan@mcmaster.BITNET