[mythtv-users] Commflagging X 4 = CPU ?

Raymond Wagner raymond at wagnerrp.com
Sun Oct 30 17:07:26 UTC 2011

On 10/30/2011 12:38, Craig Treleaven wrote:
> At 11:27 PM -0400 10/29/11, Raymond Wagner wrote:
>> On 10/29/2011 22:01, Craig Treleaven wrote:
>>> Does it seem reasonable that, say, a dual core, 3.2Ghz AMD Athlon II could keep up commflagging 4 simultaneous recordings?
>> A quick test of an hour long 1080i recording on a 3.3GHz Phenom II takes
>> 388 seconds and 686 seconds of CPU time.  You can easily handle four
>> recordings at a time.  The issue is that making so you can run four
>> real-time commflags also means you will run four tasks all the time.  As
>> explained, it's an optimization of one case over the other.
> Sorry I was dense--now I see what you mean about multiple jobs.  I almost never transcode.  In fact, 4 simultaneous recordings is pretty rare, too.  Most commonly, two or less.  The only other job would be mythfilldatabase.

Mythfilldatabase is currently run independently of jobqueue scheduling.

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