Re: web server (and TCP) performance tuning?

From: Andi Kleen (
Date: Tue Jun 13 2000 - 07:38:47 EST

Alan Cox <> writes:

> > If we assume 4000 descriptors in the select version and
> Select is limited to 1024 unless someone fixed something I missed.

No it isn't. You can pass bigger fdsets in if you want. Just make sure
that all your selects use the bigger fdsets. The gnu c library also
does not offer a standard define to increase fd_set (unlike most other
modern Unixes), so you have to declare them on your own. I guess the
glibc folks will eventually fix that if they haven't already.


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