Date: Thu, 22 Feb 1996 14:45:03 +0100 (MET) From: Kees Jan Koster <dutchman@spase.nl> To: freebsd-hackers@FreeBSD.ORG (FreeBSD hackers Mailing list) Subject: Linux/FreeBSD NFS performance. Message-ID: <199602221345.OAA00338@deimos.spase.nl>
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Hoi Hackers,
Recently I replaced my the Linux partition on the box I use at SPaSE
with a FreeBSD partition. Since everybody is always wining about Linux
NFS performance I decided to try it out. I dragged a 20Mb file across
the network via NFS, to and from a hp9000 NFS server. For good measure
I threw in a sun, just to see the difference.
Note that this test is in no way conclusive. It was during a normal working
day, with about 20 other machines clobbering the net. Don't pin anyone
down on the result.
copying very_big_file (20.175.259 bytes) to and from NFS server spase5 (hp9000)
machine -> server server -> machine
deimos (i486DX2-66, linux): 654 s 30.8 kb/s 76 s 265.5 kb/s
ariel (pentium 100, linux): 646 s 31.2 kb/s 76 s 265.5 kb/s
phobos (pentium 90, FreeBSD): 107 s 188.6 kb/s 32 s 630.5 kb/s
neptunus (sparc, SunOS): 120 s 168.1 kb/s 20 s 1008.8 kb/s
Hhmmm. Why can't FreeBSD match the read performence of the sun? ;)
Anyway, I compiled the project I'm working on both on ariel
(pentium 100, Linux) and phobos (pentium 90, FreeBSD) and I noticed the same
thing. FreeBSD outperforms the linux box tree to one. Under linux compiling
the source takes about three minutes, both on deimos (i486DX2-66) and ariel
(pentium 100). No use of bying a better processor there :)
Another thing: I've noticed is that system time overhead on linux for that
particular compile was about 20 seconds. The same compile on FreeBSD gives
me 6 seconds to wait. I guess that is also a side-effect of the great NFS
bottleneck.
I'm lucky to have a collection of weird machines here (hp, sun, pc). I'll
run some more benchmarks when I have more time. I'm trying to convince our
sysop to trash linux in favor of FreeBSD. If anyone has relevant documents
or test-results I am very much interested.
Groetjes,
Kees Jan
======================================================================v==
Kees Jan Koster e-mail: dutchman@spase.nl
Van Somerenstraat 50 tel: NL-24-3234708
6521 BS Nijmegen
the Netherlands
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Who is this general Failure and why is he reading my disk? (anonymous)
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