[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Xen-users] Xen-4.0 and GPLPV Driver - Slow Write perf

  • To: <xen-users@xxxxxxxxxxxxxxxxxxx>
  • From: "Stephane ROZET" <stban1983@xxxxxxxx>
  • Date: Fri, 18 Feb 2011 14:35:08 +0100
  • Delivery-date: Fri, 18 Feb 2011 05:36:14 -0800
  • List-id: Xen user discussion <xen-users.lists.xensource.com>
  • Thread-index: AcvPcKhX3P03PUjZRJaMMPPER3rBwA==


I’m using 3 servers with XEN and 2 San. Twice have Xen3.2 and Windows VM are OK with GPLPV drivers. One server have Xen-4.0 and I have a problem with Windows VM:

Windows VM have very poor write disk performance (3 MB/s) with GPLPV driver (I tried 0.9 and 0.11 versions). Read perf are ok (~200MB/s).

Without GPLPV driver, it’s more credible, but I’m not using the best of my VM without GPLPV…


Xen host is Debian 6, with kernel 2.6.32-5. I’m using AOE, with AOEtools in version 32 and aoe driver in version 76.


What can I do for that ?





Xen-users mailing list



Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.