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Date: Mon, 29 Sep 2008 13:58:51 +0200 (CEST)
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From: Oliver Fromme <olli@lurza.secnetix.de>
To: freebsd-hackers@FreeBSD.ORG, freebsd-stable@FreeBSD.ORG,
	danny@cs.huji.ac.il, Robert Watson <rwatson@FreeBSD.ORG>,
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Subject: Re: bad NFS/UDP performance
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Danny Braniss wrote:
 > Grr, there goes binary search theory out of the window,
 > So far I have managed to pinpoint the day that the changes affect the 
 > throughput:
 >         18/08/08 00:00:00       19/08/08 00:00:00
 > (I assume cvs's date is GMT).
 > now would be a good time for some help, specially how to undo changes, my
 > knowledge of csup/cvs are close to zero.

So you've nailed to down to this 24-hour window:

http://www.secnetix.de/olli/FreeBSD/svnews/?day=2008-08-18&p=/stable/7

I'm afraid that r181822 by rwatson is the most likely
candidate that might be causing the regression.

Best regards
   Oliver

-- 
Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing b. M.
Handelsregister: Registergericht Muenchen, HRA 74606,  Geschäftsfuehrung:
secnetix Verwaltungsgesellsch. mbH, Handelsregister: Registergericht Mün-
chen, HRB 125758,  Geschäftsführer: Maik Bachmann, Olaf Erb, Ralf Gebhart

FreeBSD-Dienstleistungen, -Produkte und mehr:  http://www.secnetix.de/bsd

"C is quirky, flawed, and an enormous success."
        -- Dennis M. Ritchie.