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Date:      Fri, 03 Nov 2006 13:33:23 +0000
From:      "Bruce M. Simpson" <bms@FreeBSD.org>
To:        Andre Oppermann <andre@FreeBSD.org>
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
Message-ID:  <454B4523.6000202@FreeBSD.org>
In-Reply-To: <200611021737.kA2HbMxY017044@repoman.freebsd.org>
References:  <200611021737.kA2HbMxY017044@repoman.freebsd.org>

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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




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