From owner-freebsd-performance@FreeBSD.ORG Tue Oct 18 14:38:48 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 15ADB1065670; Tue, 18 Oct 2011 14:38:48 +0000 (UTC) (envelope-from fidaj@ukr.net) Received: from fsm1.ukr.net (fsm1.ukr.net [195.214.192.120]) by mx1.freebsd.org (Postfix) with ESMTP id BD1E08FC13; Tue, 18 Oct 2011 14:38:47 +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=pE+lCUSa6OISpLCi/4oz4Ui5q5m8ROtc2FLe6Fk6cBg=; b=g4WXHIwmPQcuGxt9QKD3PqhFTgiMkUZsozFc4qzmP3SgxVNhJmDHZ622rFfYFpkk0tOHpjDLm619s3MRGclvTsZQYFQooUTlahU6gMGDXytxFmIKITp4Xdcmxvll4PdKut2GLnQSxp7SRtNQ7CbsBvnEppaTjdjczEmE7zLQT3U=; Received: from [81.23.24.97] (helo=nonamehost.) by fsm1.ukr.net with esmtpsa ID 1RGAoX-0004Rk-Lh ; Tue, 18 Oct 2011 17:38:46 +0300 Date: Tue, 18 Oct 2011 17:38:17 +0300 From: Ivan Klymenko To: Andriy Gapon Message-ID: <20111018173817.12c3dd59@nonamehost.> In-Reply-To: <4E9D8BA5.3010501@FreeBSD.org> References: <4E9D4124.9000307@eenet.ee> <12913.3257120431$1318938804@news.gmane.org> <4E9D7880.1030308@FreeBSD.org> <20111018162609.1319eb44@nonamehost.> <4E9D8747.4020104@FreeBSD.org> <20111018171727.1fad2c7d@nonamehost.> <4E9D8BA5.3010501@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 14:38:48 -0000 =D0=92 Tue, 18 Oct 2011 17:22:29 +0300 Andriy Gapon =D0=BF=D0=B8=D1=88=D0=B5=D1=82: > on 18/10/2011 17:17 Ivan Klymenko said the following: > > =D0=92 Tue, 18 Oct 2011 17:03:51 +0300 > > Andriy Gapon =D0=BF=D0=B8=D1=88=D0=B5=D1=82: > >=20 > >> 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: > >>> > >>>> 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? > >>>> > >>> > >>> well, for example: > >>> http://img37.imageshack.us/img37/9311/plotj.gif > >>> http://img850.imageshack.us/img850/584/plot.gif > >> > >> 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) > >=20 > > http://forum.lissyara.su/viewtopic.php?p=3D305269#p305269 > >=20 > >> only for transactions/s in postgresql sysbench. There are other > >> workloads and other important things to measure (like > >> interactivity, etc). > >> > >> Good benchmarking is a real science. > >> > > 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. >=20 > That's a problem for me - I am not an expert in this area and have > very little experience doing formal performance testing. >=20 So how can I convince you to confirm that I am right?