[mythtv-users] ffmpeg and multiple CPUs. Was: Should I be switching to 0.21?

[Jay R. Ashworth]

On Mon, Apr 14, 2008 at 01:07:39PM -0400, Tom Dexter wrote:
> However...and this is the interesting part...if I use ffmpeg but
> switch the number of CPUs to 1 instead of 2 the performance of the two
> is virtually identical.  It seems that, at least with my
> hyper-threaded 3 Ghz P4, ffmpeg works much better with a single core.

Since, with Hyperthreading, you only actually *have* one processor, I
would expect it even to be a little more efficient with 1 instead of 2,
since you save the labor of partitioning the task.

Cheers,
-- jra
-- 
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