[prev in list] [next in list] [prev in thread] [next in thread] 

List:       xen-devel
Subject:    Re: [Xen-devel] PATCH: Jeremy's linux 2.6.33-pvops: wrong gntdev
From:       Jeremy Fitzhardinge <jeremy () goop ! org>
Date:       2010-08-04 19:21:55
Message-ID: 4C59BDD3.6060602 () goop ! org
[Download RAW message or body]

  On 08/04/2010 11:43 AM, Michael Brade wrote:
> XFS has been my filesystem of choice for at least 5 years I think. Never had
> any issues with it. Before I used reiserfs and before that I had ext2/3 but
> that one gave me too many problems so I never tried it again.
>
> Would you recommend anything else instead?

I ask because xfs does some memory mapping tricks which are actually 
fairly awkward to handle in a PV Xen domain.  We end up disabling its 
lazy vunmap behaviour, which means there's a bit more overhead from tlb 
flushes and the like.  I don't know what kind of performance effect that 
actually has, or in what circumstances.

     J

_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel
[prev in list] [next in list] [prev in thread] [next in thread]