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Date: Fri, 03 Nov 2006 13:33:23 +0000
From: "Bruce M. Simpson" <bms@FreeBSD.org>
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To: Andre Oppermann <andre@FreeBSD.org>
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Cc: cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: Re: cvs commit: src/sys/kern uipc_mbuf.c uipc_syscalls.c src/sys/net
 if_tap.c if_tun.c ppp_tty.c src/sys/netgraph ng_device.c        
 src/sys/sys mbuf.h
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Andre Oppermann wrote:
>   Rewrite m_uiotombuf() to use m_getm2() for mbuf allocation and do the
>   uiomove() in a tight loop over the mbuf chain.  Add a flags parameter to
>   accept mbuf flags to be passed to m_getm2().  Adjust all callers for the
>   extra parameter.
Has any benchmarking against tap(4) been done? It would be interesting 
if there were a performance increase here for large sends i.e. 
jumbograms being sent on software loopback.

BMS