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Date: Sat, 6 Nov 2010 07:52:28 -0400 (EDT)
From: Rick Macklem <rmacklem@uoguelph.ca>
To: =?utf-8?Q?Ulrich_Sp=C3=B6rlein?= <uqs@spoerlein.net>
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Cc: Pyun YongHyeon <pyunyh@gmail.com>, stable@freebsd.org
Subject: Re: Abysmal re(4) performance under 8.1-STABLE (mid-August)
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> Hello Pyun,
> 
> On this new server, I cannot get more than ~280kByte/s up/downstream
>
I have been working on a similar problem with Pyun's help. Not yet
resolved and no idea if it is the same problem, but see below...
> 
> Any ideas?

I have been chasing a similar problem w.r.t. re(4) { slow NFS reads on
-current }. You could try building a kernel with "options DEVICE_POLLING"
and see if that helps. If that makes it work faster, then it might be the
same issue.

rick