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Date:      Wed, 18 Nov 2015 20:24:45 -0800
From:      Kevin Oberman <rkoberman@gmail.com>
To:        Lapo Luchini <lapo@lapo.it>
Cc:        "freebsd-emulation@freebsd.org" <freebsd-emulation@freebsd.org>
Subject:   Re: VirtualBox 4.3.32 page fusion does nothing?
Message-ID:  <CAN6yY1tQ0YxNotYd0EJ1CUQ6gH-Pb-KKRf%2BoQuiE_ia-r0Hpbw@mail.gmail.com>
In-Reply-To: <n2hclg$5fm$1@ger.gmane.org>
References:  <n2hclg$5fm$1@ger.gmane.org>

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On Wed, Nov 18, 2015 at 12:25 AM, Lapo Luchini <lapo@lapo.it> wrote:

> Hi, I tried VirtualBox 4.3.32 (latest from Ports) on FreeBSD 10.2/amd64
> running two clones of the same Windows 10 (64 bit) host with page fusion
> enabled (and Additions installed) but nothing gets shared.
>
> Is the feature supported in the FreeBSD Port?
>
> % VBoxManage showvminfo 'Windows 10 Pro' | fgrep -i fusion
> Page Fusion:     on
> % VBoxManage metrics list | fgrep 'Shared '
>


> host       RAM/VMM/Shared       kB            0 2147483647          0
>        0 Total physical memory shared between VMs.
> Windows 10 Pro Guest/RAM/Usage/Shared kB            0 2147483647
>   0          0 Amount of shared physical guest RAM.
> Windows 10 Pro Clone Guest/RAM/Usage/Shared kB            0 2147483647
>         0          0 Amount of shared physical guest RAM.
>
> --
> Lapo Luchini - http://lapo.it/
>

See https://forums.virtualbox.org/viewtopic.php?f=2&t=32349
In brief, it says:
1. It only works on a limited set of operating systems
2. When it works, it works poorly
3. It has seen little use (as of 2012) and was unlikely to be enhanced or
expanded
4. Don't use it
--
Kevin Oberman, Part time kid herder and retired Network Engineer
E-mail: rkoberman@gmail.com
PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683



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