On Thu, Aug 8, 2019 at 12:20 PM ben via cctalk <cctalk at classiccmp.org>
wrote:
On 8/8/2019 7:59 AM, Huw Davies via cctalk
wrote:
> On 8 Aug 2019, at 15:18, Adam Thornton via cctalk <
cctalk at
classiccmp.org> wrote:
>
>
https://mvsevm.fsf.net
>
> Currently, the TOPS-10 guest account (42,42) and the Unix v7 account
dmr have
no passwords.
Just logged into TOPS-10 for the first time in many years! Far too much
brain bit
rot but it will encourage me to build up my own RPi emulation
setup!
Thanks.
Does the PI in use have good media storage device?
I suspect TOPS and UNIX swap pages like mad. A little SD card might wear
out in few weeks.
Even the crappiest of crap SD cards these days aren't that fragile. You'd
need to swap on the order of GB/s to wear it out that fast. Most of the SD
cards can handle hundreds of full drive writes. At 128GB, you're looking at
needing to generate about ~25TB of effective writes before you'd wear them
out. Even with a crazy 10x write amp (typical is 2-3), there's no way you'd
get that through an interface that's measured in the tens of MB/s.
Although to be fair, 50MB/s for 5 days would generate that. I doubt these
old emulated systems could generate that much write traffic via SIMH on a
sustained basis. And if the SD card is any good at all, it will be at least
10x better than that.... Assuming anything decent, and a 5MB/s write rate,
you're looking at years to wear it out with extremely heavy use.
Warner