From mboxrd@z Thu Jan  1 00:00:00 1970
From: Olaf Hering <olaf@aepfle.de>
Subject: Re: [PATCH 1 of 4] Improve ring management for memory
	events
Date: Wed, 23 Nov 2011 19:57:28 +0100
Message-ID: <20111123185728.GA27583@aepfle.de>
References: <patchbomb.1321307910@xdev.gridcentric.ca>
	<ee909e5a9d8555d7dd4d.1321307911@xdev.gridcentric.ca>
	<20111123183511.GA26144@aepfle.de>
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To: Andres Lagar-Cavilla <andres@lagarcavilla.org>
Cc: andres@gridcentric.ca, xen-devel@lists.xensource.com, tim@xen.org, keir.xen@gmail.com, adin@gridcentric.ca
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On Wed, Nov 23, Andres Lagar-Cavilla wrote:

> Well, we can tone down printk's to be debug level. I don't think they're
> unnecessary if they're made an optional debug tool.

There is nothing to debug here, since the callers have to retry anyway.

> Question: I have one vcpu, how do I fill up the ring quickly? (outside of
> foreign mappings)

Have a balloon driver in the guest and balloon down more than
64*PAGE_SIZE. This is the default at least in my setup where the kernel
driver releases some memory right away (I havent checked where this is
actually configured).

Olaf