[MEncoder-users] Optimizing Mencoder on Ubuntu vs FreeBSD

[Dieter]

In message <20060412032058.7F4B197661 at mail.mplayerhq.hu>, "Andrew Edmond" writes:
> All --
>  
> I previously ran mencoder on several FreeBSD 5.4 systems, which ran
> wonderfully well.  We were doing a lot of processing of large videos into
> XVID and DIVX, and 2 hour long files were taking around 10 hours to run a
> single pass plus two bit rate second passes (700Kbps and 1500Kbps).
>  
> We recently changed to Ubuntu Linux to support the new On2 Flix Engine for
> Linux (which also runs mencoder), and though the Flix Engine works great,
> the speed on Linux for the XVID encodes works TERRIBLE.  The encodes are
> taking now 24 hours instead of 10, a 140% time increase.
>  
> I've upgraded to the Ubuntu Kernel for 686 and SMP (2.6.12), and that didn't
> speed anything up at all. 
>  
> The machines we are running on are 512MB Pentium IV (Compiled for x86 CPU
> with extensions: MMX MMX2 SSE SSE2), and 10K SATA hard drives on stripe for
> speed.  These are the same machines that were running FreeBSD 5.4 running
> mencoder, so I know it's not a hardware issue, but some Linux optimization
> issue I'm missing.
>  
> Anybody ever been through this problem before, or am I missing the "optimize
> mencoder for Linux" web page somewhere?

This Linux stuff you need is userland only, yes?  (e.g. no device drivers)
Try running it under BSD.