From: Eric Shelton <eshelton@pobox.com>
To: George Dunlap <George.Dunlap@eu.citrix.com>
Cc: Wei Liu <wei.liu2@citrix.com>,
Ian Campbell <ian.campbell@citrix.com>,
Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
Ian Jackson <ian.jackson@eu.citrix.com>,
xen-devel <xen-devel@lists.xenproject.org>,
Samuel Thibault <samuel.thibault@ens-lyon.org>
Subject: Re: [PATCH V3 1/1] libxl: set stub domain size based on VRAM size
Date: Tue, 14 Jul 2015 06:02:16 -0400 [thread overview]
Message-ID: <CAPQw5r=mvQSez+U9KLURshOBqqaqqoprVj+iWW-34FxhNqRJOQ@mail.gmail.com> (raw)
In-Reply-To: <CAFLBxZbFwrJGcTgQwVYhuKGwG7fXpEGyMauqCrZ7THrF8qpXuw@mail.gmail.com>
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On Jul 14, 2015 4:51 AM, "George Dunlap" <George.Dunlap@eu.citrix.com>
wrote:
>
> On Sat, Jul 11, 2015 at 10:30 PM, Eric Shelton <eshelton@pobox.com> wrote:
> > Allocate additional memory to the stub domain for qemu-traditional if
> > more than 4 MB is assigned to the video adapter to avoid out of memory
> > condition for QEMU.
> >
> > Signed-off-by: Eric Shelton <eshelton@pobox.com>
>
> This seems like a good fix for now, thanks.
>
> But (just speaking to people in general) it does make it even harder
> to predict exactly how much host memory a VM is going to end up
> needing to start, which is something a lot of people complain about.
>
> I'm beginning to think that one feature we should try to look at is a
> way for the admin to specify, "Max host memory used", from which
> shadow/p2m/device memory/stubdomain can all be "allocated".
Just curious: what happens when all of that memory has been "allocated,"
yet there is still plenty of memory overall? Would you not be able to spin
up a domain despite there actually being plenty of memory to do so?
Eric
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next prev parent reply other threads:[~2015-07-14 10:02 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-11 21:30 [PATCH V3 0/1] libxl: set stub domain size based on VRAM size Eric Shelton
2015-07-11 21:30 ` [PATCH V3 1/1] " Eric Shelton
2015-07-14 8:51 ` George Dunlap
2015-07-14 10:02 ` Eric Shelton [this message]
2015-07-14 10:26 ` George Dunlap
2015-07-15 9:45 ` Ian Campbell
2015-07-16 15:51 ` Ian Campbell
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