[mythtv-users] Question on recording sizes and DVD burning

[Joseph DeGraw]

On 01/21/2014 02:42 PM, jedi wrote:
> On Tue, Jan 21, 2014 at 02:34:28PM -0500, Raymond Wagner wrote:
>> On 1/21/2014 11:46 AM, Joseph DeGraw wrote:
>>> On 01/21/2014 11:24 AM, Eric Sharkey wrote:
>>>> On Tue, Jan 21, 2014 at 10:21 AM, Joseph DeGraw <coffee412 at comcast.net> wrote:
>>>>> I see that mythmmpeg is still running and taking up ALOT of CPU time. Using
>>>>> 'Top' it shows approximately 200 in cpu usage. Seems to just sit there for
>>>>> hours. Is this normal? I dont have any error messages in any of the logs -
>>>>> mythburn.log, progress.log, kern.log.
>>>> Video transcoding is extremely CPU intensive.  This is something you
>>>> should expect to take hours at full CPU utilization.
>>> Running a 8 core AMD
>> Considering video encoding is a floating point intensive process,
>> that CPU should really only be considered quad-core.
>     No. The difference is "threading". Intel CPUs show up as 2x their number
> of physical cores and seem to behave that way. Either way, you will probably
> end up spending about the same amount of money for the same level of performance
> regardless of vendor.
>
>     Also, different types of content seem to benefit more from parallelism. BDs
> seem to top out at 2 cores/threads whereas DVDs manage to take advantage of as 
> many cores or threads as you have available.
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Remember reading the other day about difference between intel and AMD
processors. The cores on AMDs share the same cache where Intels do not.
Hopefully I got that right :) Im sure there are other differences but
thats what stuck out to me.

jdegraw