[mythtv-users] Is mythtv threaded

Jon Larson jtlarson at u.washington.edu
Tue Sep 11 19:48:38 UTC 2007

Brad DerManouelian wrote:
> ... it will spawn a  
> process for commercial flagging, another for transcoding, each user- 
> defined job will be its own process. You can even tell the backend  
> how many jobs to run simultaneously so if you have 4 cores, you would  
> want to run 3 or 4 processes at a time to use up all your available  
> CPU...
What Brad says is true, but be aware that Mythtv sequences the jobs to 
run one at a time for a given recording, no matter how many cores you 
have: e.g. you want to comm-flag, transcode, and run 2 user jobs (4 
'jobs' total) on recording "A" once it is complete. A 4-core box will 
run these four tasks sequentially (not simultaneously), so it will 
complete in roughly the same time as a single core box.


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