[mythtv-users] Optimal RAM Allocation for Intel

[Michael T. Dean]

On 10/22/2015 04:26 PM, Saul wrote:
> On Thu, 22 Oct 2015 07:37:22 -0700 Kirk Bocek wrote:
>> On 10/22/2015 7:26 AM, Jim Carlson wrote:
>>> Does anyone know if there is an optimal amount of RAM, set in the
>>> BIOS, to allocate for GPU use when using the Intel platform GPU and
>>> VAAPI. If not an optimal amount, is there a too little or too
>>> much/excessive threshold? I have an i3 4330 with the HD 4600
>>> graphics and am running MythTV 0.27.5+fixes. Thanks.
>> All I know is on my ECS Liva I maxed out my video ram at 512MB to
>> VAAPI leaving 1.5GB to the system. Working fine.
> For plain 2D 512 MB is severe overkill. Too lazy to look up, but I'm
> sure Google can answer the question how much RAM is needed for 2D
> picture, depending on resolution of course.

But when using onboard decoding and OpenGL painter, it's actually 
probably about the minimum you can get away with for MythTV.  256MB 
might work, but don't be surprised if it doesn't--or, more confusingly, 
if it doesn't *always* work (meaning it may work when you test things 
out, but after some time or for some shows or ..., you get failures that 
you may no longer think are related to the available graphics memory 
since it seemed like everything was fine before).

Mike