Date: Thu, 15 Dec 2011 07:32:27 -0700 From: Mike Bedwell <pcallycat@gmail.com> To: freebsd-performance@freebsd.org Subject: Re: Benchmark (Phoronix): FreeBSD 9.0-RC2 vs. Oracle Linux 6.1 Server Message-ID: <4EEA04FB.7060905@gmail.com> In-Reply-To: <4EE9A2A0.80607@zedat.fu-berlin.de> References: <4EE1EAFE.3070408@m5p.com> <CAJ-FndDniGH8QoT=kUxOQ%2BzdVhWF0Z0NKLU0PGS-Gt=BK6noWw@mail.gmail.com> <4EE2AE64.9060802@m5p.com> <4EE88343.2050302@m5p.com> <CAFHbX1%2B5PttyZuNnYot8emTn_AWkABdJCvnpo5rcRxVXj0ypJA@mail.gmail.com> <4EE933C6.4020209@zedat.fu-berlin.de> <CAPjTQNEJDE17TLH-mDrG_-_Qa9R5N3mSeXSYYWtqz_DFidzYQw@mail.gmail.com> <20111215024249.GA13557@icarus.home.lan> <4EE9A2A0.80607@zedat.fu-berlin.de>
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On 12/15/2011 12:32 AM, O. Hartmann wrote: > Just saw this shot benchmark on Phoronix dot com today: > > http://www.phoronix.com/scan.php?page=news_item&px=MTAyNzA > > It may be worth to discuss the sad performance of FBSD in some parts of > the benchmark. A difference of a factor 10 or 100 is simply far beyond > disapointing, it is more than inacceptable and by just reading those > benchmarks, I'd like to drop thinking of using FreeBSD even as a backend > server in scientific and business environments. In detail, some of the > SciMark benches look disappointing. The overall image can't help over > the fact that in C-Ray FreeBSD is better performing. > > From the compiler, I'd like say there couldn't be a drop of more than 10 > - 15% in performance - but not 10 or 100 times. > > I'm just thinking about the discussion of SCHED_ULE and all the saur > spots we discussed when I stumbled over the test. > > Regards, > Oliver > The benchmarks also need to be ran on equivalent hardware. I've yet to see phoronix perform a benchmark test where they actually used the same rig to perform benchmark comparisons. Too many things change from one benchmark to the next to be able to reliably say what is at fault for the benchmark differences. The test needs to be re-ran in an environment where the only thing that changes, is the operating system. These benchmarks only show that linux on one machine performs differently than bsd on an entirely different machine.
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