High I/O waits

High I/O waits

[Stefan Bottelier | Ocius.nl]

Hello,

We have change ore servers from Linux kernel 3.2.63 to 3.12.30, and now 
we have very more I/O waits on the block device.
Are the some big changes in this version ? And we mount now with /sdb 
/srv but are the some mount options for better performance ?

I hope somebody can help me with this.

-- 
Met vriendelijke groet,

Stefan Bottelier
Ocius Internet Services

E: Stefan.Bottelier@ocius.nl
T: +31 (0)20 716 39 09
W: http://www.ocius.nl

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Re: High I/O waits

[Martin Steigerwald]

Am Dienstag, 21. Oktober 2014, 08:41:30 schrieb Stefan Bottelier | Ocius.nl:
> Hello,

Hi Stefan,

> We have change ore servers from Linux kernel 3.2.63 to 3.12.30, and now
> we have very more I/O waits on the block device.
> Are the some big changes in this version ? And we mount now with /sdb
> /srv but are the some mount options for better performance ?
> 
> I hope somebody can help me with this.

Not yet, as your report lacks any details necessary to even make a guess what 
the cause of your problem might be.

Please read

http://xfs.org/index.php/XFS_FAQ#Q:_What_information_should_I_include_when_reporting_a_problem.3F

and add the necessary information.

Ciao,
-- 
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
GPG: 03B0 0D6C 0040 0710 4AFA  B82F 991B EAAC A599 84C7

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