bit addressing, alignment, bus errors, and VM (was Re: PDP-10 arch question)

From: Ward Donald Griffiths III <gram_at_cnct.com>
Date: Mon Oct 26 09:34:25 1998

Jerome Fine wrote:

> Incidentally, a quick quiz. Assuming all the virtual address space was
> physical memory and you wanted to make a copy onto a disk drive
> (32 Trillion Bytes - we didn't even have GigaBytes back in 1972, let alone
> TeraBytes), how long would a sustained WRITE at 1 MByte/second take?
> Hint: Answer should be in ONE digit of precision along with a time interval.
> Eager beavers who want to give us 8 significant figures of precision
> are disqualified.

One year (less almost two weeks vacation for the sysadmin who will
surely need one by then) assuming no down time (in which case the
sysadmin will _really_ need that vacation).
-- 
Ward Griffiths <mailto:gram_at_cnct.com> <http://www.cnct.com/home/gram/>
WARNING:  The Attorney General has determined that Alcohol, Tobacco,
and Firearms can be hazardous to your health -- and get away with it.
Received on Mon Oct 26 1998 - 09:34:25 GMT

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