14 Nov
2005
14 Nov
'05
6:59 a.m.
>>>> "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