MSCP SCSI controller speed on UNIBUS

[Paul Koning]

>>>>> "9000" == 9000 VAX <vax9000 at gmail.com> writes:

 9000> On 11/12/05, Don North <ak6dn at mindspring.com> wrote:
 >> And for yucks on a UNIBUS 11/44 running 2.11BSD dd bs=16384
 >> count=1000:
 >> 
 >> >>EMULEX UC-18 0.585 MB/s not tested target is ST32550N >> 0.245
 >> MB/s not tested targer is RRD43 CDROM

 9000> Thank you. I came up a way to speed up the controller. It is
 9000> overlapped execution, just like what CVAX chips do.

What does CVAX have to do with it?  Overlapped execution has been a
standard way to get high speed I/O for a very long time.  Almost all
computers support it (weirdos like the IBM 1620 excepted).

	  paul