Something seems wrong. I get over 1.2 megabytes/sec through my CQD440
on a uV3600, and about 900K-1MB through a UC07 on the same machine. 
The Qbus is nominally a 3.3MB/sec bus. 
is your board order proper? do you have some rogue board thats generating
a gallon of interrupts? 
also, i note youre using 512b blocks with dd. try bigger blocks, 4K, 8K, 20K,
and see how the speed improves. Especially on a UC07 which is SCSI-1 (as 
opposed to the 440 which is scsi2) you shoudl notice quite a speedup. 

happy hacking,
isildur


On Fri, 29 Dec 2000, Chuck McManis wrote:

> from DD
> 107K bytes/second (same disk type)
> 
> This is on a MicroVAX 3400. It seems way to slow to me. (by further 
> comparison I get over 1MB/second on my 4000/90) So is Q-bus 10x slower than 
> a local SCSI disk?
> Michael can you try this on your 4000/300 with SCSI disks and tell us what 
> speed you get with 1.5?
> 
> --Chuck
> 
> 
>