Date: Fri, 26 Apr 2002 17:02:20 +0100 From: Brian Candler <B.Candler@pobox.com> To: freebsd-small@freebsd.org Subject: Re: NFS root and unnecessary NFS operations Message-ID: <20020426170220.A2475@linnet.org> In-Reply-To: <20020425174139.A871@linnet.org>; from B.Candler@pobox.com on Thu, Apr 25, 2002 at 05:41:39PM %2B0100 References: <20020425174139.A871@linnet.org>
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On Thu, Apr 25, 2002 at 05:41:39PM +0100, Brian Candler wrote:
> (3) Another test, just open /bin/rm for read:
>
> # perl -e 'for ($i=0;$i<1000;$i++) { open F,"</bin/rm"; $x=<F>; close F;}'
>
> # tcpdump -n -i fxp0 udp port 2049 >/dev/null
> tcpdump: listening on fxp0
> ^C
> 2014 packets received by filter
> 0 packets dropped by kernel
>
> That's part-way between. It looks like I am getting one packet exchange each
> time the file is opened:
>
> 17:25:53.015554 192.168.0.91.649103617 > 192.168.0.1.2049: 108 access [|nfs]
> 17:25:53.015698 192.168.0.1.2049 > 192.168.0.91.649103617: reply ok 120 access c xxxxxxxx
FYI, I've just brought everything up to FreeBSD-4.5-STABLE-20020426-JPSNAP
and it's exactly the same.
Regards,
Brian.
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