Bad performance with XFS + 2.6.38 / 2.6.39

[Yann Dupont]

Le 21/12/2011 16:10, Stan Hoeppner a écrit :


> 1.  What mailbox format are you using?  Is this a constant or variable?

Maildir++

> 2.  Is the Dovecot rev and config the same everywhere, before/after?
Yes
> 3.  Are Dovecot instances using NFS to access the XFS volumes?
NO. direct LVM volumes from SAN
> 4.  Is this a  Dovecot 2.x cluster with director and NFS storage?
>
NO. This is dovecot plain & simple.

When I go back to older kernels, the load go down. With newer kernel, 
all is working well too, but load (as reported by uptime) is higher.

Thanks,

-- 
Yann Dupont - Service IRTS, DSI Université de Nantes
Tel : 02.53.48.49.20 - Mail/Jabber : Yann.Dupont at univ-nantes.fr