From: Andrey Korolyov <andrey@xdel.ru>
To: Vasiliy Tolstov <v.tolstov@selfip.ru>
Cc: libvir-list <libvir-list@redhat.com>,
"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] incorrect memory size inside vm
Date: Wed, 17 Jun 2015 18:38:55 +0300 [thread overview]
Message-ID: <CABYiri-yf90=xZE8pvqcPQhB_4YxbAGe3HLtRV-S+B-qOYOYWw@mail.gmail.com> (raw)
In-Reply-To: <CACaajQsQPVjqLcoZdYj_ODXBKQzOn8tZ+LDt3mkwYhBhtstV=Q@mail.gmail.com>
On Wed, Jun 17, 2015 at 6:33 PM, Vasiliy Tolstov <v.tolstov@selfip.ru> wrote:
> 2015-06-17 17:09 GMT+03:00 Andrey Korolyov <andrey@xdel.ru>:
>> The rest of visible memory is eaten by reserved kernel areas, for us
>> this was a main reason to switch to a hotplug a couple of years ago.
>> You would not be able to scale a VM by an order of magnitude with
>> regular balloon mechanism without mentioned impact, unfortunately.
>> Igor Mammedov posted hotplug-related patches for 2.6.32 a while ago,
>> though RHEL6 never adopted them by some reason.
>
>
> Hmm.. Thanks for info, from what version of kernel memory hotplug works?
>
> --
> Vasiliy Tolstov,
> e-mail: v.tolstov@selfip.ru
Currently QEMU memory hotplug should work with 3.8 and onwards.
Mentioned patches are an adaptation for an older frankenkernel of 3.8`
functionality.
next prev parent reply other threads:[~2015-06-17 15:39 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-17 13:35 [Qemu-devel] incorrect memory size inside vm Vasiliy Tolstov
2015-06-17 14:09 ` Andrey Korolyov
2015-06-17 15:33 ` Vasiliy Tolstov
2015-06-17 15:38 ` Andrey Korolyov [this message]
2015-06-17 16:26 ` Vasiliy Tolstov
2015-06-17 21:21 ` Vasiliy Tolstov
2015-06-17 22:40 ` Andrey Korolyov
2015-06-17 22:44 ` Vasiliy Tolstov
2015-06-17 22:52 ` Andrey Korolyov
2015-06-17 22:57 ` Vasiliy Tolstov
2015-06-18 15:05 ` Piotr Rybicki
2015-06-18 21:23 ` Andrey Korolyov
2015-06-19 11:14 ` Piotr Rybicki
2015-06-19 12:01 ` Andrey Korolyov
2015-06-19 12:02 ` Vasiliy Tolstov
2015-06-22 13:30 ` Piotr Rybicki
2015-06-22 15:58 ` Andrey Korolyov
-- strict thread matches above, loose matches on Subject: below --
2015-06-23 12:32 Piotr Rybicki
2015-06-23 18:59 ` Andrey Korolyov
2015-06-23 22:10 ` Piotr Rybicki
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