Date: Tue, 18 Oct 2011 16:26:09 +0300 From: Ivan Klymenko <fidaj@ukr.net> To: Andriy Gapon <avg@FreeBSD.org> Cc: freebsd-performance@FreeBSD.org Subject: Re: ffmpeg & ULE Message-ID: <20111018162609.1319eb44@nonamehost.> In-Reply-To: <4E9D7880.1030308@FreeBSD.org> References: <4E9D4124.9000307@eenet.ee> <12913.3257120431$1318938804@news.gmane.org> <4E9D7880.1030308@FreeBSD.org>
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=D0=92 Tue, 18 Oct 2011 16:00:48 +0300 Andriy Gapon <avg@FreeBSD.org> =D0=BF=D0=B8=D1=88=D0=B5=D1=82: > on 18/10/2011 14:30 Ivan Klymenko said the following: > > =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: > >=20 > >> Hello. > >> > >> Why is ffmpeg -threads massively slower with ULE than 4BSD? > >> > >> ffmpeg preset veryfast with sched_bsd: > >> real 1m49.407s > >> user 6m53.932s > >> sys 0m1.700s > >> > >> ffmpeg preset veryfast with sched_ule: > >> real 2m52.711s > >> user 6m50.310s > >> sys 0m1.582s > >> > >> #uname -a > >> FreeBSD 9.0-RC1 FreeBSD 9.0-RC1 #0: Mon Oct 17 20:32:29 EEST > >> > >> > >=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 >=20 > Do you have any facts to substantiate your claim? >=20 well, for example: http://img37.imageshack.us/img37/9311/plotj.gif http://img850.imageshack.us/img850/584/plot.gif
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