Date: Sat, 29 Sep 2001 01:39:04 -0700 From: Julian Elischer <julian@elischer.org> To: Nguyen-Tuong Long Le <le@cs.unc.edu> Cc: freebsd-net@freebsd.org Subject: Re: FD_SETSIZE Message-ID: <3BB588A8.C9ED7512@elischer.org> References: <Pine.LNX.4.32.0109282129490.1971-100000@le-cs.cs.unc.edu>
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Nguyen-Tuong Long Le wrote:
>
> Hi,
>
> I am wondering what is the side effects of increasing FD_SETSIZE
> beyond 1024? Our group have a propiertary web server software that
> handles a large number of sockets. While increasing the kern.maxfiles
> and kern.maxfilesperproc gives our web server more connections,
> select() seems to fail if the descriptor is beyond 1024.
>
> Can I just increase FD_SETSIZE and recompile the kernel? I saw
> some magic numbers in kern/sys_generic.c and am not sure whether
> there are some side effects.
>
> Thanks,
> Long
>
> P.S. Please kindly email me because I am not in the list.
>
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it can be extended safely, but you'll get better performance if you
write a version for FreeBSD to use kqueue instead..
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