Subject: Interrupt frequency
To: None <port-alpha@netbsd.org>
From: John Hayward <John.C.Hayward@wheaton.edu>
List: port-alpha
Date: 03/01/2001 21:21:00
Dear Alpha People,
   On my Multia I'm seeing over 1,000 interrupts reported via vmstat:
====
% vmstat -c 10
 procs   memory     page                       disks      faults      cpu
 r b w   avm   fre  flt  re  pi   po   fr   sr f0 s0 m0   in   sy  cs us sy id
 0 0 0 58592  2856    7   0   0    0    1    1  0  3  0 1033   22   6  5  1 94
 0 0 0 58592  2856    2   0   0    0    0    0  0  0  0 1033   18   6  0  1 99
 0 0 0 58592  2856    2   0   0    0    0    0  0  0  0 1030   18   6  0  0 100
 0 0 0 58592  2856    2   0   0    0    0    0  0  0  0 1030   18   6  0  0 100
 0 0 0 58592  2856    2   0   0    0    0    0  0  0  0 1030   18   6  0  0 100
 0 0 0 58592  2856    2   0   0    0    0    0  0  0  0 1030   22   7  0  1 99
 0 0 0 58592  2856    2   0   0    0    0    0  0  0  0 1030   18   6  0  0 100
 0 0 0 58592  2856    2   0   0    0    0    0  0  0  0 1030   18   6  0  0 100
 0 0 0 58592  2856    2   0   0    0    0    0  0  0  0 1030   18   7  0  0 100
 0 0 0 58592  2856    2   0   0    0    0    0  0  0  0 1030   18   6  0  0 100
===
On an i386 machine I see between 100 and 138.

Is this normal to see an order of magnitude difference?

johnh...