From: William Allen Simpson <william.allen.simpson@gmail.com>
Date: Fri, 23 Oct 2009 07:46:08 -0400

quoted text
> Concur.  I'd go further than that, my code usually made room for at
> least
> a full MTU (MRU) with HDLC escaping.  To minimize context switches,
> that
> should be 3014 ((1500 MRU + 2 FCS + 4 header) * 2 escapes + 2 flags).
> 
> Even in the old days, when memory was tight, context switches and
> interrupt
> time were more expensive, too.  PPP is supposed to scale to OC-192.

Actually I'd like to see ->obuf allocated externally and then
make it simply PAGE_SIZE.
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html