[TUHS] NFS at 40

[Larry McVoy via TUHS]

On Fri, Sep 26, 2025 at 11:26:55AM -0400, Clem Cole via TUHS wrote:
> On Fri, Sep 26, 2025 at 11:20???AM Brad Spencer via TUHS <tuhs at tuhs.org>
> wrote:
> 
> > "Charles H. Sauer via TUHS" <tuhs at tuhs.org> writes:
> > ....  it came
> > out that the IP stack in that SVR3.x on the Vax was from Lachman ported
> > in by DEC.  DEC tossed out the code base, whatever might have existed,
> > that AT&T provided with the source reference for doing IP related stuff.
> > This would have been in the 1990s.  The coworker seemed to indicate that
> > the Lachman code performed better and/or had all of the parts that one
> > might expect in a IP stack that were missing in the AT&T version.
> >
> IIRC, the issue was System V's Streams (TLI) vs. UCB's Sockets.  Most of
> the code for IP/TCP, particularly UNIX-based, wanted "pure-joy" and hacking
> the code to TLI was too much trouble.

Lachman's stuff came from Convergent, they wrote the STREAMS based TCP/IP
stack (I know, I ported it to SVR3 for the ETA-10 project, and then again
to SCO Unix which was maybe V7 based?  It was pretty primitive.  Might 
have been SVR3 or R2).

STREAMS just sucked, way more overhead than UCB's sockets.  I've never
been a huge fan of the UI of sockets, it's clunky, but it was a lot better
than the STREAMS layering.
-- 
---
Larry McVoy           Retired to fishing          http://www.mcvoy.com/lm/boat