[mythtv-users] Xen and Mythtv and Mysql

[Brad Fuller]

On Sun, Apr 6, 2008 at 5:41 PM, Richard Freeman
<r-mythtv at thefreemanclan.net> wrote:
> Chris Isip wrote:
>  > How safe is it to use xen virtual machines to run mysql, mythtv, etc.  I
>  > am building my new mythtv server and have just started tinkering with
>  > this.  I am thinking of running mysql in a 10 GB vm with 1000 megs of
>  > ram, mythtv in a 5 GB vm with 500 megs of ram with CentosPlus in LVM
>  > ext3 and swap.   I will be running other servers as well but those two
>  > are the ones relevant to this list.  Has anyone tried this and if you
>  > have, what are your experiences as far as stability and what disk space
>  > and ram considerations do you recommend.  I will be running Centos Plus.
>  >
>
>  I haven't actually tried it, but I suspect mysql will work just fine.
>  If you're running tuner cards I'm not so sure about mythtv/ivtv/etc -
>  I'm not sure if those are compatible with any virtualization schemes.
>  In general the main issue with virtualization tends to be direct
>  hardware access / device drivers / etc.  An app like mysql that just
>  access files and communicates via IP shouldn't have any issues as long
>  as you allocate sufficient RAM/CPU/etc.  There will be a little
>  overhead, but nothing horrible.

I've run Xubuntu under Vista using VirtualBox and the mythfrontend
works pretty good. You can see a little difference in choppyness
viewing HD programs than in regular linux. I've haven't tried running
mythbackend in Vbox.

I think it'll depend on your CPU. This on isn't fabulously fast:
Athlon64 5000+ (dual cpu). Although in windows, I'm running Vista
32bit.