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

Re: [Xen-devel] [PATCH][TOOLS] Reducing impact of domainsave/restore/dump on Dom0

  • To: "Graham, Simon" <Simon.Graham@xxxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: Keir Fraser <keir@xxxxxxxxxxxxx>
  • Date: Wed, 21 Feb 2007 10:34:14 +0000
  • Delivery-date: Wed, 21 Feb 2007 02:33:39 -0800
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AcdO73yfygbdSnxbR/2AnMRpBcbdNgAy2MewAXo9Plo=
  • Thread-topic: [Xen-devel] [PATCH][TOOLS] Reducing impact of domainsave/restore/dump on Dom0

On 13/2/07 22:12, "Graham, Simon" <Simon.Graham@xxxxxxxxxxx> wrote:

> Reduce impact of saving/restoring/dumping large domains on Dom0 memory
> usage by means of fadvise64() to tell the OS to discard the cache pages
> used for the save/dump file.
> Signed-off-by: Simon Graham <Simon.Graham@xxxxxxxxxxx>

Could the fadvise() logic be shared more than it is in this patch? Also you
sometimes sync-then-fadvise. Is this just a performance enhancement
(presumably fadvise wouldn't simply discard dirty pages in the buffer

 -- Keir

Xen-devel mailing list



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