Date: Wed, 26 Nov 2008 13:18:14 +0100 From: Alexander Leidinger <Alexander@Leidinger.net> To: Ivan Voras <ivoras@freebsd.org> Cc: freebsd-performance@freebsd.org Subject: Re: FreeBSD 7.1 BETA 2 vs Opensolaris vs Ubuntu performance Message-ID: <20081126131814.21221p9o7j3rryjo@webmail.leidinger.net> In-Reply-To: <9bbcef730811260155h156b7a6v8c88b0da51f28ee@mail.gmail.com> References: <DE23C2B055DA4BC683BDCAA95FF7B736@multiplay.co.uk> <gggmbb$un6$1@ger.gmane.org> <20081125173657.GA50429@freebsd.org> <ggher5$qq0$2@ger.gmane.org> <d763ac660811251202n5dafbbl896ad194435436a0@mail.gmail.com> <9bbcef730811251246nf39e825s95a25ae394948e06@mail.gmail.com> <20081126094314.119834gt66jv0g00@webmail.leidinger.net> <9bbcef730811260155h156b7a6v8c88b0da51f28ee@mail.gmail.com>
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Quoting Ivan Voras <ivoras@freebsd.org> (from Wed, 26 Nov 2008 =20 10:55:39 +0100): > 2008/11/26 Alexander Leidinger <Alexander@leidinger.net>: > >> If you want to test OS performance and use Java programs in there to do s= o, >> you would use the same Java version, wouldn't you? They didn't. > > Linux: 1.6.0_0-b12 > Solaris: 1.6.0_10-b33 > FreeBSD: 1.6.0_07-b02 The important part is the _XX, not the -bYY. The bYY may be something =20 we don't care about, but the _XX part is something which may cause =20 performance differences. > Since system have their local patches (I know FreeBSD does), I don't > think it's even possible to test "exactly the same" version ;) > > But this also goes into the "What OS ships with" category. We don't ship with java at all... strictly speaking. ;) >> If you want to run number crunching software, you are interested in high >> computing throughput of your app, so you use a compiler which performs be= st >> for your code in question (which would mean probably the Intel compiler o= r >> the Portland compiler on Linux, maybe the Sun compiler on Solaris, and >> probably gcc on FreeBSD). You also want to optimize the code for your CPU >> (it makes a difference if you do floating point calculations and are allo= wed >> to use the SSEx or whatever instructions), and not some generic settings = the >> OS comes with. > > I think they went with the "stock" configurations as that's what > almost all users will use. I fully agree. But number crunching (as benchmarked, and I'm not =20 talking about LAME which has a 2% difference) is not something almost =20 all users will do. Something the masses may do with the OS is not =20 covered at all, no browser tests, no interactivity (maybe with high =20 load in the background) tests. As I said, they don't even tell what =20 they want to test (and as such, everything we can do is speculate... =20 that's not something which will lead to interesting results in the =20 thread). Bye, Alexander. --=20 Man must shape his tools lest they shape him. =09=09-- Arthur R. Miller http://www.Leidinger.net Alexander @ Leidinger.net: PGP ID =3D B0063FE7 http://www.FreeBSD.org netchild @ FreeBSD.org : PGP ID =3D 72077137
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