[mythtv-users] Video card recommendations for new build

Stephen Worthington stephen_agent at jsw.gen.nz
Wed Jul 26 23:14:06 UTC 2017


On Wed, 26 Jul 2017 14:49:47 -0400, you wrote:

>On 7/25/2017 1:14 PM, R. G. Newbury wrote:
>> On 07/22/2017 11:39 AM, Jim wrote:

>Your setup is similar to mine and sounds a little better than the box I 
>am replacing.
>
>It will only be running myth but I want it to have enough grunt to run 
>several comm flagging jobs simultaneously. My current box is limited to 
>one job after the recording finishes and it occasionally struggles when 
>comm flagging and recording 4 or 5 things at once. Trying to watch 
>something under those conditions can sometimes be rather glitchy and jerky.

Any modern multi-core CPU will be able to do comm flagging properly
for you.  I upgraded my MythTV box to an Asus M5A97Evo motherboard
with an AMD FX-4100 CPU and 8 Gibytes of RAM in 2012.  The CPU is quad
core 3.6 GHz.  The result is that it can do comm flagging in real time
on one recording per core.  I have not tried setting it to do more
than four comm flagging jobs at once, but when doing four at once,
there is plenty of CPU left over for all the other processing needed
when I am recording 8 or more channels at once.  By real time, I mean
that the comm flagging gets done from the RAM buffers at the same time
as the recording is being written to disk, so there is no need for the
data to be read back from hard drive to be comm flagged.  That is what
I needed to make sure that I was not going to be overloading my
recording drives with accessing too many files at once and causing
gaps in the recordings.


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