Re: CephFS: 'ls -alR' performance terrible unless Linux cache flushed

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Hi,

On 16/06/2015 18:46, negillen negillen wrote:

> Fixed! At least looks like fixed.

That's cool for you. ;)

> It seems that after migrating every node (both servers and clients) from
> kernel 3.10.80-1 to 4.0.4-1 the issue disappeared.
> Now I get decent speeds both for reading files and for getting stats from
> every node.

It seems to me that an interesting test could be to let the old kernel in
your client nodes (ie 3.10.80-1), use ceph-fuse instead of the ceph kernel
module and test if you have decent speeds too.

Bye.

-- 
François Lafont
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