[TUHS] (Amdahl UNIX) "Notes on Au Performance - or How to get the Pb out of Au"
Sebastien F4GRX
f4grx at f4grx.net
Wed Jul 19 23:50:30 AEST 2023
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=sharing
>
> Huge thanks to my friend Karl D. for hanging on to this for 44 years.
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