From: Dor Laor <dlaor@redhat.com>
To: Zhang Qian <zhq527725@gmail.com>
Cc: kvm@vger.kernel.org
Subject: Re: How much physical memory can be used to run domains in a KVM machine?
Date: Fri, 17 Jul 2009 10:17:18 +0300 [thread overview]
Message-ID: <4A60257E.3060908@redhat.com> (raw)
In-Reply-To: <8b8dd4340907162250j55b6d93l4a20dc6f42c6e3a2@mail.gmail.com>
On 07/17/2009 08:50 AM, Zhang Qian wrote:
> Hi,
>
> I have a KVM box which has 4GB physical memory totally, I'd like to
> know how much I can use to run my domains, and how much will be
> reserved by hypervisor(KVM) itself?
> Thanks!
>
KVM and the Linux host use relatively low amount of memory.
Unlike other hypervisors you know, kvm does not reserve memory and also
is able to swap the guest memory, so you can even use more than 4G for
your guest. (Just note swapping will be slow)
>
> Regards,
> Qian
> --
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next prev parent reply other threads:[~2009-07-17 7:16 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-17 5:50 How much physical memory can be used to run domains in a KVM machine? Zhang Qian
2009-07-17 7:17 ` Dor Laor [this message]
2009-07-17 9:56 ` sudhir kumar
2009-07-17 10:55 ` Amit Shah
2009-07-20 1:43 ` Sheng Yang
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