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Re: [PLUG] Virtualization question: Is there a performance benefit to running either a 32bit or 64bit Linux guest under virtualization?
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- From: Lee Marzke <lee@marzke.net>
- To: Philadelphia Linux User's Group Discussion List <plug@lists.phillylinux.org>
- Subject: Re: [PLUG] Virtualization question: Is there a performance benefit to running either a 32bit or 64bit Linux guest under virtualization?
- Date: Fri, 27 Aug 2010 13:33:38 -0400
- Reply-to: Philadelphia Linux User's Group Discussion List <plug@lists.phillylinux.org>
- Sender: plug-bounces@lists.phillylinux.org
- User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.11) Gecko/20100713 Thunderbird/3.0.6
On 08/27/2010 01:12 PM, Amul Shah wrote:
Is there a performance benefit to running either a 32bit or 64bit Ubuntu guest under virtualization? I know it probably depends upon the implementation of the hyper visor, but I am curious to learn if it makes a difference in guest OS performance.
My itch to scratch is deciding whether or not to run a 32bit or 64bit Linux guest on VMware's desktop (Fusion) virtualization. The underlying hardware is x86_64 with VT-enabled.
Assuming your OS is 64 bit, then you have the choice of 32 or 64 bit
guests.
I believe the primary factor is that if your guest needs more than ~4GB
of RAM you will
benefit from running 64 bit guest instead of a PAE enabled kernel.
Not much difference
otherwise, and some 32 bit code may be slightly slower.
Lee
thanks,
Amul
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___________________________________________________________________________
Philadelphia Linux Users Group -- http://www.phillylinux.org
Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce
General Discussion -- http://lists.phillylinux.org/mailman/listinfo/plug
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