Messages in this thread | ![/](/images/icornerl.gif) | | Subject | Re: Unices are created equal, but ... | Date | Sun, 14 Apr 1996 13:55:05 -0700 (PDT) | From | "JULIAN Elischer" <> |
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> ( Did you remember some recent thread in the linux kernel list?) Sorry I am not on the Linux list.. > > 2 - People that claim that Unix B is FASTER than Unix A rarely > indicate the versions of systems (nor the used benchmarks). > I was expecting that Unix B version 2.0.5 was still a little FASTER that > Unix A version 1.3.87, and I get the OPPOSITE. > The difference is that I wrote that my benckmark is "questionnable" and > give enough informations to guess missing informations. > Most of Unix end users are not able to guess the MISSING informations. > They BELEIVE what we CLAIM.
Ok, here is my attempt at the missing information....
I would expect the following to be true between Linix 1.3.x and FreeBSD 2.0.5. category 1:--Linux faster in: context switch, including some system calls. possibly some program startup. possibly pipe code. possibly FP emulation. possibly FP exception handling. Any test that does a lot of filesystem meta-data manipulation. e.g. file creation and deletion.
category 2:--FreeBSD 2.0.5 faster in: Anything to do with networking Anything using a raw tape or disk device. Any benchmark that loaded the system very heavily, especially if it produced swapping. Any benchmark that tested high-speed large sustained IO to files.
category 3:--Linux and FreeBSD 2.0.5 about equivalent in: Anything that relies mostly on plain CPU with no or little OS involvement. (as both use the same cpu.)
Obvioulsy, any benchmark that mainly tests category 1 and 3 will get a different result to one that tests mainly 2 and 3.
My guess is that the Byte Benchmarks don't do much in category 2
> > 3 - It seems to me that now, current Linux is as FAST as FreeBSD-current. > Good news!!!!!!!!!!
welll, current Linux is as fast in some places as old FreeBSD.. What you say MIGHT also be true, but this is not proved by your tests. because: a/ you only test categories 1 and 3 b/ You do not test current FreeBSD If you wish to test current FreeBSD and include test from category 2 as well, then I suspect that you might find a different story.
THE REASON: FreeBSD and Linux developers have done work in different places.. each has strong and weak points.
> It is difficult to have both Linux and FreeBSD in their current version. > Only linux is up to date on my machine. > If you are a FreeBSD-current user and if you have about the same > configuration as mine, can you run the old BYTE benchmark > and send to me your results?
I don't think it would be useful unless we had EXACTLY the same hardware.. I have seen small differences make up to 50% difference..
Linux made great improvements in the last year. So did FreeBSD. Most of the areas indicated as being Weak points for FreeBSD in 2.0.5 were redone in -current. Of course this now means that Other parts are the "weak points" :)
> Thanks per advance, > > Best Regards, Gerard. > julian +----------------------------------+ ______ _ __ | __--_|\ Julian Elischer | \ U \/ / On assignment | / \ julian@tfs.com +------>x USA \ in a very strange | ( OZ ) 300 lakeside Dr. oakland CA. \___ ___ | country ! +- X_.---._/ USA+(510) 645-3137(wk) \_/ \\ ><DARWIN> v LL LL
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