From: "J. Bruce Fields" <bfields@fieldses.org>
To: Taousif_Ansari@DELLTEAM.com
Cc: linux-nfs@vger.kernel.org
Subject: Re: Performance Issue with multiple dataserver
Date: Wed, 18 May 2011 12:12:39 -0400 [thread overview]
Message-ID: <20110518161239.GA16835@fieldses.org> (raw)
In-Reply-To: <A1A98FD909DC5248811A65C5D18E9C761DF69B1F18@BLRX7MCDC202.AMER.DELL.COM>
You sent this message as a reply to an unrelated message, which is
confusing to those of us with threaded mail readers.
On Wed, May 18, 2011 at 05:24:45PM +0530, Taousif_Ansari@DELLTEAM.com wrote:
> I have done pNFS setup with single Dataserver and Two Dataserver and ran the IOzone tool on both, I found that the performance with multiple dataservers is less than the performance with single dataservers.
What are you using as the server, and what as the client?
--b.
>
> Here are some numbers, which were captured by the IOzone tool.
>
>
> 4 8 16 32 64 128 256 512 1024 <== Record Length in KB
> With Single Dataserver:
> Read operation for file size 1 MB- 66415 66359 63630 70358 86223 70256 66047 66068 68489 <== IO kB/sec
> Write operation for file size 1 MB- 18827 16920 18846 17039 18896 17009 17173 19206 17947 <== IO kB/sec
>
> With Two Dataservers :
> Read operation for file size 1 MB- 36882 381198 38150 38084 38749 33663 34398 37313 37847 <== IO kB/sec
> Write operation for file size 1 MB- 5461 4661 5586 4870 5227 4922 4214 5572 4658 <== IO kB/sec
>
>
> Can somebody tell me What could be the issue....
> --
> To unsubscribe from this list: send the line "unsubscribe linux-nfs" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
next prev parent reply other threads:[~2011-05-18 16:12 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-17 16:21 How to control the order of different export options for different client formats? James Pearson
2011-05-17 22:01 ` NeilBrown
2011-05-18 10:19 ` James Pearson
2011-05-18 11:54 ` Performance Issue with multiple dataserver Taousif_Ansari
2011-05-18 16:12 ` J. Bruce Fields [this message]
2011-05-19 5:26 ` Taousif_Ansari
2011-05-19 11:50 ` J. Bruce Fields
2011-05-19 12:39 ` Taousif_Ansari
2011-05-19 13:12 ` J. Bruce Fields
2011-05-19 13:14 ` Taousif_Ansari
2011-05-19 13:43 ` J. Bruce Fields
2011-05-19 14:09 ` Taousif_Ansari-G5Y5guI6XLZWk0Htik3J/w
2011-05-19 14:37 ` Shyam_Iyer
2011-05-24 11:39 ` Taousif_Ansari
2011-05-24 11:44 ` Steven Whitehouse
2011-05-24 13:17 ` J. Bruce Fields
2011-05-18 16:20 ` How to control the order of different export options for different client formats? J. Bruce Fields
2011-05-20 13:38 ` James Pearson
2011-05-20 16:41 ` J. Bruce Fields
2011-06-02 13:37 ` James Pearson
2011-06-04 18:20 ` J. Bruce Fields
2011-06-06 12:14 ` James Pearson
[not found] ` <4DE79236.1080808-5Ol4pYTxKWu0ML75eksnrtBPR1lH4CV8@public.gmane.org>
2011-06-07 20:33 ` Steve Dickson
2011-05-18 0:46 ` Max Matveev
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20110518161239.GA16835@fieldses.org \
--to=bfields@fieldses.org \
--cc=Taousif_Ansari@DELLTEAM.com \
--cc=linux-nfs@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).