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To: sthaug@nethelp.no
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Subject: Re: pbufs (was: Re: ufs is too slow?) 
In-reply-to: Your message of "Wed, 13 Nov 1996 18:13:18 +0100."
             <22583.847905198@verdi.nethelp.no> 
From: bmah@cs.berkeley.edu (Bruce A. Mah)
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Date: Wed, 13 Nov 1996 10:03:44 -0800
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sthaug@nethelp.no writes:
> > (Editorial note:  Packet traces have shown that many packets, at least on 
> > LANs, tend to be small.  So it's not clear to me what effect this would hav
> e 
> > for "typical" network traffic, though the wins for large bulk transfers hav
> e 
> > shown to be substantial.)
> 
> It's also likely to help *latency* for smaller packets quite a bit.

I agree that Van's proposed changes to packet processing will improve latency, 
but it is not at all obvious how the changes to *buffer allocation* would 
affect latency.  Sorry if I was unclear on what "this" meant in my note.

> See	http://ee.lbl.gov/nrg-talks.html
> 
> In particular, the 1992 talk "Design Changes to the Kernel Network
> Architecture for 4.4BSD", and the 1993 talk "Some Design Issues for
> High-speed Networks".

Thanks for the pointer.

Cheers,

Bruce.