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Date:      Sat, 02 Dec 2006 08:56:57 +0800
From:      Jamie Clark <jamie@zeroth.org>
To:        Steven Hartland <killing@multiplay.co.uk>
Cc:        Charles Sprickman <spork@bway.net>, freebsd-stable@freebsd.org
Subject:   Re: vr speed issues
Message-ID:  <4570CF59.9060904@zeroth.org>
In-Reply-To: <001d01c71597$69cbd700$b3db87d4@multiplay.co.uk>
References:  <Pine.OSX.4.61.0611282212530.517@white.nat.fasttrackmonkey.com><457012AE.8050700@zeroth.org> <Pine.OSX.4.61.0612011546530.517@white.nat.fasttrackmonkey.com> <001d01c71597$69cbd700$b3db87d4@multiplay.co.uk>

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Steven Hartland wrote:
> Charles Sprickman wrote:
>>> Backing up the 4.10 box was within an acceptable margin of wire
>>> speed (~8MB/s on 100M ethernet) given that a router was in the
>>> middle. That's roughly how the box has always performed.
>>>
>>> After installing 6.1_RELEASE and updating to RELENG_6 I started the
>>> restore. Maxed out at about 380kB/s. Now I tested the backup speed
>>> again and it has also dropepd to 380k.
>
> That speed is indicative of a FD / HD mismatch between the switch
> and the NIC if its hard coded try setting auto if its auto try
> hardcoding. N.B. Ensure both ends are set in the same way i.e. hard/auto
> or problems start.
Both are auto and show 100 FD. The switch port stats show zeros on all the
error counters.

Good thinking though. I wouldn't yet rule out an external influence as I
have not performed any in-depth diagnosis of this - but I can't think of
anything obvious aside from the OS upgrade.

-Jamie



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