At 16:08 Uhr +0100 22.11.2000, Allen Briggs wrote:

>I don't know what the difference is between 1.4.2 and 1.5.  I don't
>think there's been anything mac68k-specific changed.  Do you have the
>nubus card in the 1.5 machine or the 1.4.2 machine?  What kind of nubus
>card is it?

Transition from vanilla to A/UX interrupt mode? I feel that at the time,
SCSI performance on my Quadra 700 dropped significantly.

Last time I ran "bonnie", the Q700 in part came out behind a IIci with sbc
driver. Q700, IIci and Sun SS2 used the same disk, a Quantum 2G Viking.

The IIci runs 1.4.1 (sbc), the Q700 1.4Q, the Sun SS2 1.5ALPHA; the SE/30
figures were from NetBSD 1.1 and a Quantum TRB 850:


              -------Sequential Output-------- ---Sequential Input-- --Random--
              -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine    MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU  /sec %CPU
SS2       100   852 88.6  2681 55.8   574 19.0   804 91.7  2563 46.9  75.4 13.9
Q_700     100   365 93.7   560 93.0   287 95.0   352 95.6   571 95.7  24.0 42.1
IIci      100   237 93.1  1111 91.2   633 92.7   253 93.6  1310 76.4  41.8 23.4
Mac SE/30 100   154 98.3   596 96.9   232 34.5   149 99.0   375 29.2  28.9 24.4


- These figures may in part be distorted due to loss of clock ticks, but by
an order of magnitude? Unfortunately, I do not have older figures from the
Quadra 700.

	hauke


--
"It's never straight up and down"     (DEVO)