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From: Olaf Hering <olaf@aepfle.de>
To: Andrew Cooper <andrew.cooper3@citrix.com>
Cc: Juergen Gross <JGross@suse.com>, Wei Liu <wei.liu2@citrix.com>,
	Ian Campbell <Ian.Campbell@citrix.com>,
	Ian Jackson <Ian.Jackson@eu.citrix.com>, Tim Deegan <tim@xen.org>,
	Xen-devel List <xen-devel@lists.xen.org>,
	Ross Lagerwall <ross.lagerwall@citrix.com>,
	David Vrabel <david.vrabel@citrix.com>,
	Jan Beulich <JBeulich@suse.com>,
	Shriram Rajagopalan <rshriram@cs.ubc.ca>,
	Hongyang Yang <yanghy@cn.fujitsu.com>
Subject: Re: [Planning for Xen-4.6] Migration v2
Date: Wed, 26 Nov 2014 15:53:30 +0100	[thread overview]
Message-ID: <20141126145330.GA3623@aepfle.de> (raw)
In-Reply-To: <5475D302.3010409@citrix.com>

On Wed, Nov 26, Andrew Cooper wrote:

> It is certainly my hope going forward that different knobs can be
> exposed.  One thing I think would be interesting is some proper
> calculations of the delta in the dirty set, and offering a threshold
> which chooses between "pause and complete" or "abort the migration and
> complain that the VM is too active"

The "pause and complete" step is what causes unexpected time jumps in
the guest. Would be nice if that can be controlled with a knob.

Olaf

  reply	other threads:[~2014-11-26 14:53 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-11-25 19:54 [Planning for Xen-4.6] Migration v2 Andrew Cooper
2014-11-26  8:09 ` Olaf Hering
2014-11-26 13:17   ` Andrew Cooper
2014-11-26 14:53     ` Olaf Hering [this message]
2014-11-26 16:44 ` Ian Campbell
2014-11-26 17:22   ` Andrew Cooper
2014-11-26 16:50 ` Ian Campbell
2014-11-26 17:39   ` Andrew Cooper
2014-11-27  8:46     ` Ian Campbell
2014-11-27  8:33 ` Hongyang Yang

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