[mythtv-users] Wintv-PVR-USB2 and Virtual box. Am I going to far?

jrlowry376 at comcast.net jrlowry376 at comcast.net
Sat May 8 03:06:45 UTC 2010

> On 5/7/2010 14:14, jrlowry376 at comcast.net wrote:
>>> Why do you need to use virtual machines to consolidate hardware?
>> VB will allow me manage memory and to some extent cpu
>> resources used by the myth.
> Why would you want to?  Mythcommflag and mythtranscode can be 'niced' so
> they don't impede other processes.  If you artificially govern the
> database and backend, MythTV will just become slow to respond as it is
> waiting on the database or scheduler to finish.  The database and
> backend will use however much memory they want, and nothing you do
> externally can reduce that.  If you limit them to less memory than they
> want, something will be randomly terminated by the kernel, and you won't
> like the results.
> Virtualization will only serve to increase memory usage, as you lose the
> ability to use shared libraries, and you are going to duplicate
> everything in the disk cache.
>> It will also provide me with an easy way to do upgrades,
>> just duplicate the base OS virtual disk image and compile.
> So what? Even a basic 'chroot' will allow you to do that.
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I need to say thanks, I see the value of your suggestions.
I guess to start up the environment I'll need to do:
 chroot /mythroot /bin/bash <name of the script that starts the backend>

This could be interesting.

Thanks, Jack

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