Re: [PLEASE-TESTME] Zerocopy networking patch, 2.4.0-1

Trond Myklebust (trond.myklebust@fys.uio.no)
Wed, 10 Jan 2001 10:21:52 +0100 (CET)


>>>>> " " == David S Miller <davem@redhat.com> writes:

> Date: Tue, 9 Jan 2001 16:27:49 +0100 (CET) From: Trond
> Myklebust <trond.myklebust@fys.uio.no>

> OK, but can you eventually generalize it to non-stream
> protocols (i.e. UDP)?

> Sure, this is what MSG_MORE is meant to accomodate. UDP could
> support it just fine.

Great! I've been waiting for something like this. In particular the
knfsd TCP server code can get very buffer-intensive without it since
you need to pre-allocate 1 set of buffers per TCP connection (else you
get DOS due to buffer saturation when doing wait+retry for blocked
sockets).

If it all gets in to the kernel, I'll do the work of adapting the NFS
+ sunrpc stuff.

Cheers,
Trond
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