From: Stan Hoeppner <stan@hardwarefreak.com>
To: Adam Goryachev <adam@websitemanagers.com.au>
Cc: linux-raid@vger.kernel.org
Subject: Re: RAID performance
Date: Thu, 07 Feb 2013 02:24:24 -0600 [thread overview]
Message-ID: <511364B8.5040900@hardwarefreak.com> (raw)
In-Reply-To: <51134F0F.607@websitemanagers.com.au>
On 2/7/2013 12:51 AM, Adam Goryachev wrote:
> Sorry, graphs can be seen at:
>
> http://203.98.89.64/graphs/
The graphs tell us nothing in isolation Adam. What is needed is to know
what workloads are running when the device queues and response times
start piling up. Whether rust or SSD, queues will increase, as well as
IO completion times, when sufficient IO is being performed.
--
Stan
next prev parent reply other threads:[~2013-02-07 8:24 UTC|newest]
Thread overview: 131+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-07 6:48 RAID performance Adam Goryachev
2013-02-07 6:51 ` Adam Goryachev
2013-02-07 8:24 ` Stan Hoeppner [this message]
2013-02-07 7:02 ` Carsten Aulbert
2013-02-07 10:12 ` Adam Goryachev
2013-02-07 10:29 ` Carsten Aulbert
2013-02-07 10:41 ` Adam Goryachev
2013-02-07 8:11 ` Stan Hoeppner
2013-02-07 10:05 ` Adam Goryachev
2013-02-16 4:33 ` RAID performance - *Slow SSDs likely solved* Stan Hoeppner
[not found] ` <cfefe7a6-a13f-413c-9e3d-e061c68dc01b@email.android.com>
2013-02-17 5:01 ` Stan Hoeppner
2013-02-08 7:21 ` RAID performance Adam Goryachev
2013-02-08 7:37 ` Chris Murphy
2013-02-08 13:04 ` Stan Hoeppner
2013-02-07 9:07 ` Dave Cundiff
2013-02-07 10:19 ` Adam Goryachev
2013-02-07 11:07 ` Dave Cundiff
2013-02-07 12:49 ` Adam Goryachev
2013-02-07 12:53 ` Phil Turmel
2013-02-07 12:58 ` Adam Goryachev
2013-02-07 13:03 ` Phil Turmel
2013-02-07 13:08 ` Adam Goryachev
2013-02-07 13:20 ` Mikael Abrahamsson
2013-02-07 22:03 ` Chris Murphy
2013-02-07 23:48 ` Chris Murphy
2013-02-08 0:02 ` Chris Murphy
2013-02-08 6:25 ` Adam Goryachev
2013-02-08 7:35 ` Chris Murphy
2013-02-08 8:34 ` Chris Murphy
2013-02-08 14:31 ` Adam Goryachev
2013-02-08 14:19 ` Adam Goryachev
2013-02-08 6:15 ` Adam Goryachev
2013-02-07 15:32 ` Dave Cundiff
2013-02-08 13:58 ` Adam Goryachev
2013-02-08 21:42 ` Stan Hoeppner
2013-02-14 22:42 ` Chris Murphy
2013-02-15 1:10 ` Adam Goryachev
2013-02-15 1:40 ` Chris Murphy
2013-02-15 4:01 ` Adam Goryachev
2013-02-15 5:14 ` Chris Murphy
2013-02-15 11:10 ` Adam Goryachev
2013-02-15 23:01 ` Chris Murphy
2013-02-17 9:52 ` RAID performance - new kernel results Adam Goryachev
2013-02-18 13:20 ` RAID performance - new kernel results - 5x SSD RAID5 Stan Hoeppner
2013-02-20 17:10 ` Adam Goryachev
2013-02-21 6:04 ` Stan Hoeppner
2013-02-21 6:40 ` Adam Goryachev
2013-02-21 8:47 ` Joseph Glanville
2013-02-22 8:10 ` Stan Hoeppner
2013-02-24 20:36 ` Stan Hoeppner
2013-03-01 16:06 ` Adam Goryachev
2013-03-02 9:15 ` Stan Hoeppner
2013-03-02 17:07 ` Phil Turmel
2013-03-02 23:48 ` Stan Hoeppner
2013-03-03 2:35 ` Phil Turmel
2013-03-03 15:19 ` Adam Goryachev
2013-03-04 1:31 ` Phil Turmel
2013-03-04 9:39 ` Adam Goryachev
2013-03-04 12:41 ` Phil Turmel
2013-03-04 12:42 ` Stan Hoeppner
2013-03-04 5:25 ` Stan Hoeppner
2013-03-03 17:32 ` Adam Goryachev
2013-03-04 12:20 ` Stan Hoeppner
2013-03-04 16:26 ` Adam Goryachev
2013-03-05 9:30 ` RAID performance - 5x SSD RAID5 - effects of stripe cache sizing Stan Hoeppner
2013-03-05 15:53 ` Adam Goryachev
2013-03-07 7:36 ` Stan Hoeppner
2013-03-08 0:17 ` Adam Goryachev
2013-03-08 4:02 ` Stan Hoeppner
2013-03-08 5:57 ` Mikael Abrahamsson
2013-03-08 10:09 ` Stan Hoeppner
2013-03-08 14:11 ` Mikael Abrahamsson
2013-02-21 17:41 ` RAID performance - new kernel results - 5x SSD RAID5 David Brown
2013-02-23 6:41 ` Stan Hoeppner
2013-02-23 15:57 ` RAID performance - new kernel results John Stoffel
2013-03-01 16:10 ` Adam Goryachev
2013-03-10 15:35 ` Charles Polisher
2013-04-15 12:23 ` Adam Goryachev
2013-04-15 15:31 ` John Stoffel
2013-04-17 10:15 ` Adam Goryachev
2013-04-15 16:49 ` Roy Sigurd Karlsbakk
2013-04-15 20:16 ` Phil Turmel
2013-04-16 19:28 ` Roy Sigurd Karlsbakk
2013-04-16 21:03 ` Phil Turmel
2013-04-16 21:43 ` Stan Hoeppner
2013-04-15 20:42 ` Stan Hoeppner
2013-02-08 3:32 ` RAID performance Stan Hoeppner
2013-02-08 7:11 ` Adam Goryachev
2013-02-08 17:10 ` Stan Hoeppner
2013-02-08 18:44 ` Adam Goryachev
2013-02-09 4:09 ` Stan Hoeppner
2013-02-10 4:40 ` Adam Goryachev
2013-02-10 13:22 ` Stan Hoeppner
2013-02-10 16:16 ` Adam Goryachev
2013-02-10 17:19 ` Mikael Abrahamsson
2013-02-10 21:57 ` Adam Goryachev
2013-02-11 3:41 ` Adam Goryachev
2013-02-11 4:33 ` Mikael Abrahamsson
2013-02-12 2:46 ` Stan Hoeppner
2013-02-12 5:33 ` Adam Goryachev
2013-02-13 7:56 ` Stan Hoeppner
2013-02-13 13:48 ` Phil Turmel
2013-02-13 16:17 ` Adam Goryachev
2013-02-13 20:20 ` Adam Goryachev
2013-02-14 12:22 ` Stan Hoeppner
2013-02-15 13:31 ` Stan Hoeppner
2013-02-15 14:32 ` Adam Goryachev
2013-02-16 1:07 ` Stan Hoeppner
2013-02-16 17:19 ` Adam Goryachev
2013-02-17 1:42 ` Stan Hoeppner
2013-02-17 5:02 ` Adam Goryachev
2013-02-17 6:28 ` Stan Hoeppner
2013-02-17 8:41 ` Adam Goryachev
2013-02-17 13:58 ` Stan Hoeppner
2013-02-17 14:46 ` Adam Goryachev
2013-02-19 8:17 ` Stan Hoeppner
2013-02-20 16:45 ` Adam Goryachev
2013-02-21 0:45 ` Stan Hoeppner
2013-02-21 3:10 ` Adam Goryachev
2013-02-22 11:19 ` Stan Hoeppner
2013-02-22 15:25 ` Charles Polisher
2013-02-23 4:14 ` Stan Hoeppner
2013-02-12 7:34 ` Mikael Abrahamsson
2013-02-08 7:17 ` Adam Goryachev
2013-02-07 12:01 ` Brad Campbell
2013-02-07 12:37 ` Adam Goryachev
2013-02-07 17:12 ` Fredrik Lindgren
2013-02-08 0:00 ` Adam Goryachev
2013-02-11 19:49 ` Roy Sigurd Karlsbakk
2013-02-11 20:30 ` Dave Cundiff
2013-02-07 11:32 ` Mikael Abrahamsson
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