Re: [libvirt-users] Memory statistics for DomU's
[your mailer broke threading because it failed to set In-Reply-To headers]
On 03/14/2012 01:41 PM, inge85(a)web.de wrote:
> The virDomainMemoryStats() is probably the
> key API to be using,
virDomainMemoryStats() I already focused, but there's not
directly the data I
need (read and written bytes of RAM).
Patches are welcome if you'd like to extend that API to provide
additional stats, from the hypervisors that actually track those stats.
I don't understand, why it's so hard to track those data. I read something about
"xentrace", a tool to read out some CPU counters, which can be used to
approximate RAM accesse by using LLC-miss counter. Is there no easy way to get
the data?
I'm not aware of one, but that doesn't mean there isn't one; and it may
be a simple patch to write if you can find the right place in the source.
--
Eric Blake eblake(a)redhat.com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
Attachments:
- signature.asc (application/pgp-signature — 620 bytes)