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Salut

http://bulk.fefe.de/scalability/

Sper ca nu a mai fost, pagina imi pare foarte interesanta, concluzii:
Linux 2.6 scales O(1) in all benchmarks. Words fail me on how impressive 
this is. If you are using Linux 2.4 right now, switch to Linux 2.6 now!

FreeBSD 5.1 has very impressive performance and scalability. I foolishly 
assumed all BSDs to play in the same league performance-wise, because they 
all share a lot of code and can incorporate each other's code freely. I 
was wrong. FreeBSD has by far the best performance of the BSDs and it 
comes close to Linux 2.6. If you run another BSD on x86, you should switch 
to FreeBSD!

Linux 2.4 is not too bad, but it scales badly for mmap and fork.

NetBSD 1.6.1 was treated unfairly by me because I only tested the stable 
version, not the unstable source tree. I originally only wanted to 
benchmark stable versions, but deviated with OpenBSD and then with 
FreeBSD. I should have upgraded NetBSD then, too. Nonetheless, NetBSD 
feels snappy, performs well overall, although it needs work in the 
scalability department, judging from the old version I was using. Please 
note that NetBSD was the only BSD that never crashed or panicked on me, so 
it gets favourable treatment for that.

OpenBSD 3.4 was a real stinker in these tests. The installation routine 
sucks, the disk performance sucks, the kernel was unstable, and in the 
network scalability department it was even outperformed by it's father, 
NetBSD. OpenBSD also gets points deducted for the sabotage they did to 
their IPv6 stack. If you are using OpenBSD, you should move away now.

- -- 
Mihai RUSU                                    Email: [EMAIL PROTECTED]
GPG : http://dizzy.roedu.net/dizzy-gpg.txt    WWW: http://dizzy.roedu.net
                       "Linux is obsolete" -- AST
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