From owner-freebsd-performance@FreeBSD.ORG  Tue Oct 18 11:52:01 2011
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Date: Tue, 18 Oct 2011 14:30:12 +0300
From: Ivan Klymenko <fidaj@ukr.net>
To: Urmas Lett <urmas.lett@eenet.ee>
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Cc: freebsd-performance@freebsd.org
Subject: Re: ffmpeg & ULE
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=D0=92 Tue, 18 Oct 2011 12:04:36 +0300
Urmas Lett <urmas.lett@eenet.ee> =D0=BF=D0=B8=D1=88=D0=B5=D1=82:

> Hello.
>=20
> Why is ffmpeg -threads massively slower with ULE than 4BSD?
>=20
> ffmpeg preset veryfast with sched_bsd:
> real    1m49.407s
> user    6m53.932s
> sys     0m1.700s
>=20
> ffmpeg preset veryfast with sched_ule:
> real    2m52.711s
> user    6m50.310s
> sys     0m1.582s
>=20
> #uname -a
> FreeBSD 9.0-RC1 FreeBSD 9.0-RC1 #0: Mon Oct 17 20:32:29 EEST
>=20
>=20

probably because you have a system processor with 2 cores...?
if yes - then use the 4BSD...it is better for the two cores... IMHO