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Date:      Fri, 15 Feb 2008 21:42:22 +0100
From:      Kris Kennaway <kris@FreeBSD.org>
To:        Aleksey Perov <algardo@sura.ru>
Cc:        freebsd-performance@freebsd.org, kib@FreeBSD.org
Subject:   Re: System perforamance 4.x vs. 5.x and 6.x
Message-ID:  <47B5F92E.5070103@FreeBSD.org>
In-Reply-To: <20080215144923.b66240ba.algardo@sura.ru>
References:  <20080214114759.R75215@mail.rsts.org>	<47B49A16.1080103@FreeBSD.org>	<20080214131026.Y75492@mail.rsts.org>	<47B4D139.5020701@FreeBSD.org> <47B4D27C.9010503@FreeBSD.org>	<47B569C0.30006@FreeBSD.org> <20080215144923.b66240ba.algardo@sura.ru>

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Aleksey Perov wrote:
> Kris Kennaway wrote:
> 
>> I checked with the developer, and no-one running 6.x and quotas ever 
>> replied to multiple requests to test the patch.  It can be found here if 
>> you want to resolve this performance problem without upgrading to 7.0:
>>
>> http://people.freebsd.org/~kib/quotagiant/quotas-RELENG_6-20070623-1455.patch
> 
> Well, I'm running RELENG_6 SMP system with this patch since september
> 2007 (last updated 2008-02-08), and I haven't seen any quota-related
> problem. Quota-enabled partition is 60 GB UFS2 containing 25,000+
> customers' home directories with Maildir-style mailboxes and surviving
> 100,000+ deliveries (file creations) and approximately the same number
> of retrievals (file deletions) each day.
> 
> mail:~# df -i /disk1
> Filesystem  1K-blocks     Used    Avail Capacity iused   ifree %iused  Mounted on
> /dev/da1s1d  66343254 25904146 35131648    42% 1479119 7117359   17%   /disk1
> mail:~# mount
> /dev/da1s1d on /disk1 (ufs, local, noexec, nosuid, with quotas, soft-updates)
> 
> If I can run some specific (stress?) tests that might provide useful
> information, let me know. Output of dmesg, vmstat, iostat, top, etc --
> just ask.

Thanks, that is precisely the kind of feedback we are looking for.

Kris



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