Return to BSD News archive
Path: sserve!newshost.anu.edu.au!harbinger.cc.monash.edu.au!msunews!uwm.edu!news.alpha.net!news.mathworks.com!news.duke.edu!godot.cc.duq.edu!hudson.lm.com!ivory.lm.com!not-for-mail From: peterb@telerama.lm.com (Peter Berger) Newsgroups: comp.unix.bsd Subject: Re: Linux vs. BSD?! Date: 20 Feb 1995 10:16:15 -0500 Organization: Telerama Public Access Internet, Pittsburgh, PA USA Lines: 54 Message-ID: <3iabnv$i74@ivory.lm.com> References: <3i7ar8$ahv@marton.hsr.no> <3i83js$avl@ivory.lm.com> <3iaaai$72u@agate.berkeley.edu> <3iab0s$hjl@ivory.lm.com> NNTP-Posting-Host: ivory.lm.com Whoops! In case Jordan decides to assert that I don't know what "identical hardware" is in addition to implying that I, as a user, don't know what "stable" means when I see it, here's the basic stats on that machine: 486DX2/66 16 Meg of core (80 ns). 256K of 20ns secondary cache. Micronics JX-30 motherboard. gcc 2.6.1 was used where available. -O2 flags were used. The benchmark is available from ftp.germany.eu.net:/pub/sysadmin/benchmark/dhrystone-2.1/dhrystone-2.1.tar.Z And here's one last data point: Blindman BSD/OS 2.0 22.2 45112.8 (gcc 1.42) Blindman BSD/OS 2.0 18.8 53238.7 (gcc 2.6.3) In article <3iab0s$hjl@ivory.lm.com>, Peter Berger <peterb@telerama.lm.com> wrote: >In article <3iaaai$72u@agate.berkeley.edu>, >Jordan K. Hubbard <jkh@violet.berkeley.edu> wrote: >>I'm really really really wondering about this mysterious performance loss >>you keep alluding to - please be more specific about the benchmark used >>and give us some assurance that they were run on IDENTICAL hardware. >>If you ran the FreeBSD benchmarks on a 386sx and the NetBSD benchmarks >>on a 486/DX4 and are going to tell us that "you simply scaled the numbers" >>or something, I am going to laugh until parts of me start falling off! :-) > >These were run on identical hardware. The benchmark is Dhrystone 2.1, >which is more reliable than the 1.1 version I noticed others using as it >is less affected by secondary cache. > >Here's the table. 1,000,000 runs through Dhrystone in each case. > >Machine OS One Ds (musec.) Ds/sec >======= ============ =============== ====== >Blindman FreeBSD2.0-R 36.0 27,790.6 >Blindman BSD/OS 1.1 27.9 35,820.9 >Blindman NetBSD 1.0-R 27.8 36,014.4 > >-- >...................................................................... > Peter G. Berger, Esq. Telerama Public Access Internet, Pittsburgh >Internet: peterb@telerama.lm.com Phone: 412/481-3505 Fax: 412/481-8568 > http://www.lm.com/~peterb -- ...................................................................... Peter G. Berger, Esq. Telerama Public Access Internet, Pittsburgh Internet: peterb@telerama.lm.com Phone: 412/481-3505 Fax: 412/481-8568 http://www.lm.com/~peterb