Xen users - Apr 2011 - Disable "Steal Time" in domu?

I was looking at an issue with steal time affecting several instances. Is it
possible to pass a kernel parameter on a Linux vm so that the xen host
cannot "steal time" from it? I would like to isolate some vms from
being
part of the pool where resources can be borrowed, or reduce the aggression.  

all the best,
kblam

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-----Original Message-----
From: xen-users-bounces@lists.xensource.com
[mailto:xen-users-bounces@lists.xensource.com] On Behalf Of krblam
Sent: Tuesday, April 05, 2011 3:51 PM
To: xen-users@lists.xensource.com
Subject: [Xen-users] Disable "Steal Time" in domu?

I was looking at an issue with steal time affecting several instances. Is it
possible to pass a kernel parameter on a Linux vm so that the xen host
cannot "steal time" from it? I would like to isolate some vms from
being
part of the pool where resources can be borrowed, or reduce the aggression.  

all the best,
kblam

--


If you dedicate whole physical cpu to that VM vcpu on the hypervisor level
(vcpu-pin), there should be no "Steal Time".

Or might try tuning weights&caps in CreditScheduler.


Matej

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