From: Stan Hoeppner <stan@hardwarefreak.com>
To: Eric Sandeen <sandeen@sandeen.net>
Cc: xfs@oss.sgi.com, aurfalien <aurfalien@gmail.com>
Subject: Re: specify agsize?
Date: Sun, 14 Jul 2013 17:08:04 -0500 [thread overview]
Message-ID: <51E32144.3020109@hardwarefreak.com> (raw)
In-Reply-To: <51E2CE83.9080003@sandeen.net>
On 7/14/2013 11:14 AM, Eric Sandeen wrote:
> http://wikihelp.autodesk.com/Creative_Finishing/enu/2012/Help/05_Installation_Guides/Installation_and_Configuration_Guide_for_Linux_Workstations/0118-Advanced118/0194-Manually194/0199-Creating199
>
> I guess?
>
> That's quite a procedure! And I have to say, a slightly strange one at first glance.
Agreed.
> It'd be nice if they said what they were trying to accomplish rather than just giving you a long recipe.
Again.
> In the end, I think they are trying to create 128AGs and maybe work around some mkfs corner case or other.
Or it's just as likely they are laying out these image frames in a
specific manner across 128 directories, assuming 128 AGs exist, to
achieve some specific "on disk" organization of the files. It's simply
not possible to know without more information.
Interestingly, on a 14+2 RAID6 array of 7.2K drives, normally 128 AGs
will decrease parallel performance due to a huge increase in head seek
latency. Thus I'd assume this isn't a parallel workload. Either that
or Autodesk doesn't know XFS as well as they believe.
--
Stan
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next prev parent reply other threads:[~2013-07-14 22:08 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-14 0:11 specify agsize? aurfalien
2013-07-14 2:13 ` Eric Sandeen
2013-07-14 4:20 ` aurfalien
2013-07-14 7:06 ` Stan Hoeppner
2013-07-14 16:56 ` aurfalien
2013-07-15 1:07 ` Dave Chinner
2013-07-14 16:14 ` Eric Sandeen
2013-07-14 16:46 ` aurfalien
2013-07-14 17:14 ` aurfalien
2013-07-15 1:22 ` Dave Chinner
2013-07-14 22:08 ` Stan Hoeppner [this message]
2013-07-14 22:42 ` aurfalien
2013-07-14 23:43 ` Stan Hoeppner
-- strict thread matches above, loose matches on Subject: below --
2013-07-14 19:45 Richard Scobie
2013-07-14 22:18 ` aurfalien
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