[x264-devel] Trouble keeping 8 cores busy

[Jason Garrett-Glaser]

On Tue, Jan 6, 2009 at 9:37 PM, Ben Rosenblum <ben at brosenblum.com> wrote:
> Hi All,
>
> About 18 months ago I ran into the same issue on my server (Dual X5355
> Quad-Core Xeon's).  After some playing around by Loren we determined
> that it was being caused by the way x264 handles its threading and not
> by the encode itself.  We found that the time it took x264 to create a
> thread and then subsequently destroy the thread once it was done doing
> its business was killing a significant amount of time

Last time I did this test, that process (thread destruction+creation)
took on the order of one microsecond.  Which is why it wasn't
committed.

Dark Shikari