19 Jul
2023
19 Jul
'23
4:23 p.m.
Hi again,
this remark actually applies to the other document about unix370
feasability, oops!
However, That one is also interesting. I read in it at 6.1.4 "Login
procedure optimization" about "combining (..) (init, getty and login)
into one [program]". We can see this as the premices for the modern
systemd :-)
Sebastien
Le 19/07/2023 à 15:50, Sebastien F4GRX a écrit :
Hi,
Thank you, this is a very interesting read. I will share this with
friends as soon as this is publicly available in the TUHS archives.
We see premices of the Linux Copy-On-Write forking method!
I also note that they decided to avoid a global kernel lock.
Sebastien
Le 19/07/2023 à 03:08, Tom Lyon a écrit :
> This is perhaps the first significant document I wrote at Amdahl.
> Although undated, I believe this was written in August 1979, after I
> had attended a 2 week class at IBM Chicago about VM//370(CP)
> internals and performance.
>
> The paper makes reference to V7 UNIX being "on order", so this is
> when the V6 UNIX system was in use. IIRC, V7 UNIX was released in
> Nov. of 1979.
>
> https://drive.google.com/file/d/1cB2eqTwmicj1AQOiULDZjED5Rq-_V4N4/view?usp=…
>
>
> Huge thanks to my friend Karl D. for hanging on to this for 44 years.