Re: kernel 3.18 io bottlenecks?

[Lincoln Bryant <lincolnb@xxxxxxxxxxxx>]

Hi German,

Is this with CephFS, or RBD?

Thanks,

Lincoln

On Jun 24, 2015, at 9:44 AM, German Anders <ganders@xxxxxxxxxxxx> wrote:

Hi all,

   Is there any IO botleneck reported on kernel 3.18.3-031803-generic? since I'm having a lot of iowait and the cluster is really getting slow, and actually there's no much going on. I've read some time ago that there were some issues with kern 3.18, so I would like to know what's the 'best' kernel to go with, I'm using Ubuntu 14.04.1LTs and Ceph v0.82.

Thanks a lot,

Best regards,

German

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