Performance of freeBSD 5.1
pete at he.iki.fi
Tue Aug 26 23:28:08 PDT 2003
Did you disable INVARIANTS and WITNESS when running the tests?
TeJun Huh wrote:
> I've been conducting performance tests using simple HTTP proxies and
>web polygraph <http://www.web-polygraph.org/>. Web polygraph is
>believed to generate realistic Internet load (high number of sessions,
>many idle, req rate independent of resp rate, and so on). I built
>several equivalent HTTP proxies using various concurrency mechanisms
>and comparing those on linux and freeBSD.
> The following result is obtained on p4 xeon 2.4g (UP kernels).
>Custom version of Kqueue is used on Linux. FreeBSD 5.1 is updated to
>the latest cvs tree three weeks ago (due to thread stability issues)
>and compiled with GENERIC option.
> FreeBSD Linux
> Select Kqueue Select Kqueue
>rps 400 500 500 2500
> I feel something is very wrong with FreeBSD kqueue result. Used
>tuning parameters are
>* Loader tunables
>sysctl -w net.inet.ip.portrange.first=1024
>sysctl -w net.inet.ip.portrange.last=65535
>sysctl -w kern.ipc.somaxconn=1024
>sysctl -w kern.maxfiles=200000
>sysctl -w kern.maxfilesperproc=200000
>sysctl -w kern.threads.max_threads_per_proc=100000
>sysctl -w kern.threads.max_groups_per_proc=8000
> As soon as the test machine becomes available, I'm gonna run tests on
>freeBSD 4.8 and compare the results. Any suggestions are welcomed.
>P.S. Please don't forget to CC me. TIA.
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