From owner-freebsd-performance@FreeBSD.ORG Tue Oct 18 14:18:02 2011 Return-Path: Delivered-To: freebsd-performance@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 43ABE1065670; Tue, 18 Oct 2011 14:18:02 +0000 (UTC) (envelope-from fidaj@ukr.net) Received: from fsm2.ukr.net (fsm2.ukr.net [195.214.192.121]) by mx1.freebsd.org (Postfix) with ESMTP id EA8658FC15; Tue, 18 Oct 2011 14:18:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=ukr.net; s=fsm; h=Content-Transfer-Encoding:Content-Type:Mime-Version:References:In-Reply-To:Message-ID:Subject:Cc:To:From:Date; bh=l4G3HUorfJmZgO8Rqkhz0Jz8GQQ1kSC3wbkV/oFRF0c=; b=s3Zk6F+Vxeq6OKhqMSUJap3YO7K0I9Mas0IzaHZBdLy4Xe93lca9VxztDUy28oysAQaB4ZuT1TJi69cLS8c7+H1sG1DlUK/az3ExhniN461wRi4J7jcBJa3s4O99gyxgK2gdntMIoaVZZ2Ji+uxDWJhacOKS/i8zdaIQm5sRXVw=; Received: from [81.23.24.110] (helo=nonamehost.) by fsm2.ukr.net with esmtpsa ID 1RGAUQ-000Fns-DH ; Tue, 18 Oct 2011 17:17:59 +0300 Date: Tue, 18 Oct 2011 17:17:27 +0300 From: Ivan Klymenko To: Andriy Gapon Message-ID: <20111018171727.1fad2c7d@nonamehost.> In-Reply-To: <4E9D8747.4020104@FreeBSD.org> References: <4E9D4124.9000307@eenet.ee> <12913.3257120431$1318938804@news.gmane.org> <4E9D7880.1030308@FreeBSD.org> <20111018162609.1319eb44@nonamehost.> <4E9D8747.4020104@FreeBSD.org> X-Mailer: Claws Mail 3.7.9 (GTK+ 2.22.1; amd64-portbld-freebsd9.0) Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Cc: freebsd-performance@FreeBSD.org Subject: Re: ffmpeg & ULE X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 18 Oct 2011 14:18:02 -0000 =D0=92 Tue, 18 Oct 2011 17:03:51 +0300 Andriy Gapon =D0=BF=D0=B8=D1=88=D0=B5=D1=82: > on 18/10/2011 16:26 Ivan Klymenko said the following: > > =D0=92 Tue, 18 Oct 2011 16:00:48 +0300 > > Andriy Gapon =D0=BF=D0=B8=D1=88=D0=B5=D1=82: > >=20 > >> on 18/10/2011 14:30 Ivan Klymenko said the following: > >>> =D0=92 Tue, 18 Oct 2011 12:04:36 +0300 > >>> Urmas Lett =D0=BF=D0=B8=D1=88=D0=B5=D1=82: > >>> > >>>> 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 > >>>> > >>>> > >>> > >>> probably because you have a system processor with 2 cores...? > >>> if yes - then use the 4BSD...it is better for the two cores... > >>> IMHO > >> > >> 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 >=20 > Not sure if two pictures is all that it takes. > There is no description of hardware, OS versions, reproducibility of > the results. Also you made a broader claim like "4BSD ... is better > for the two cores", but the pictures demonstrate only that it is > better (by ~10% ? I hate it when the axises do not start at zero) http://forum.lissyara.su/viewtopic.php?p=3D305269#p305269 > only for transactions/s in postgresql sysbench. There are other > workloads and other important things to measure (like interactivity, > etc). >=20 > Good benchmarking is a real science. >=20 Of course - I understand it. Please tell me what tests should I do? I will give you the test results for review. I also give all the information about the hardware on which the tests were conducted.