Is SageTV set up for multi-threading?

[redsuntrading]

I have a dual processor set-up.

Is SageTV multi-threading software or is it of benefit to force it to one processor using a tool like SMP Seesaw.

Chris

[nielm]

Yes Sage is multi-threaded, and in certain cases (using service, transcoding) multi-process as well. (Note that some threads such as video decoding may need more power than others).

Even if a process is not multi-threaded, why do you think constraining it to a single CPU would be a benefit?

[redsuntrading]

See this url, http://www.mlin.net/SMPSeesaw.shtml.

This guy thinks it will improve performence but does not say why.

Chris

[Thomas Wischgol]

Originally Posted by redsuntrading

See this url, http://www.mlin.net/SMPSeesaw.shtml.

This guy thinks it will improve performence but does not say why.

Chris

He actually does say: you can dedicate a processor to a single process so that this process is solely running on that processor. Context-switching will then occur only for the other processor among the remaining processes. This could improve performance for this one process because you do not waste time for context-switching (on that one processor) if the process does not use multi-threading. I have no clue if SageTV would benefit from this nor have I ever tried this software. My guess is that it slows down a lot of other things that would otherwise use unused processor cycles on the dedicated processor. Since SageTV is multithreaded, you do not avoid context-switching on the dedicated processor either so that overall your gain in performance is probably minimal at best. But - as I said - I am just guessing here.

Thomas