[mythtv-users] system profiling / cpu usage revisited

[Brian Lalor]

mOjO wrote:

> i think you failed to mention one thing in all that massive amount of 
> data... what resolution where you recording at?  many of us have 
> experienced dramatic difference in cpu results between 480x480 and 
> 640x480....

It doesn't seem to matter.  My CPU's maxed out at both 480x480 and 
320x480.  oggenc's currently consuming 100% CPU, but *that* I expect...

> 1.)  some people said that running the mythbackend as root (as a system 
> daemon usually) allows it to assign greater priority to certain threads 
> thereby improving recording quality.

If that's true, I didn't see it documented anywhere.  Maybe I'll try that...

> 2.) some people had strange performance issues with 2.4.21 or at least 
> thought they did and claimed going back to 2.4.20 solved them and yet 
> others have said that they run 2.4.21 fine... i dont think a consensus 
> has been reached on whether there are issues with that kernel and myth 
> or not.

I'm seeing the same behavior with both kernels.

-- 
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   / /  / __/ Brian Lalor
  / _ \/__ \  blalor at bravo5.org
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