From: Diwaker Gupta <diwakergupta@gmail.com>
To: "Neugebauer, Rolf" <rolf.neugebauer@intel.com>
Cc: xen-devel@lists.sourceforge.net
Subject: Re: monitoring domain resource usage
Date: Tue, 19 Oct 2004 16:53:19 -0700 [thread overview]
Message-ID: <1b0b455704101916535c636b00@mail.gmail.com> (raw)
In-Reply-To: <39CC97884CA19A4D8D6296FE94357BCBAD4FB4@swsmsx404>
On Tue, 19 Oct 2004 21:52:59 +0100, Neugebauer, Rolf
<rolf.neugebauer@intel.com> wrote:
> There currently is no such tool, however xen exports via the control
> interface to dom0 the relevant information. E.g. 'xm list' reports cpu
> time consumed per VM. It should be straight forward to implement a tool
> periodically calling this interface and compute CPU percentages. This
> could either be done via the 'xm' interface or the xen.lowlevel.xc
> interface. The latter should have less overhead.
I played around with 'xm list' but soon ran into problems. I'm not
sure if this is specific to a particular CPU scheduler, or a general
problem that others have noticed too.
Right now I have xen (booted using sched=atropos) running two VMs,
each running a CPU intensive job. However, the cpu-time (as reported
by xm list -l) does not seem to be changing *at all*, even across runs
lasting for minutes. The uptime gets updated properly, though.
Is this a known issue?
--
Diwaker Gupta
http://resolute.ucsd.edu/diwaker
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next prev parent reply other threads:[~2004-10-19 23:53 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-19 20:52 monitoring domain resource usage Neugebauer, Rolf
2004-10-19 23:53 ` Diwaker Gupta [this message]
2004-10-20 14:32 ` Matthieu PATOU
2004-10-20 16:00 ` Diwaker Gupta
2004-10-20 17:49 ` Rolf Neugebauer
2004-10-20 18:23 ` Diwaker Gupta
-- strict thread matches above, loose matches on Subject: below --
2004-10-19 19:17 Diwaker Gupta
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