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Date: Sun, 16 Feb 1997 14:34:13 +1100
From: Bruce Evans <bde@zeta.org.au>
Message-Id: <199702160334.OAA05142@godzilla.zeta.org.au>
To: ache@freefall.freebsd.org, cvs-all@freefall.freebsd.org,
        CVS-committers@freefall.freebsd.org, cvs-sys@freefall.freebsd.org
Subject: Re: cvs commit:  src/sys/sys types.h
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>ache        97/02/15 14:26:30
>
>  Modified:    sys/sys   types.h
>  Log:
>  Bump default FD_SETSIZE from 256 to 1024 as many modern
>  systems do nowdays (like SunOs 5.5.1 f.e.)
>  256 is too small under real network load

Please back it out. The kernel is not read for this.  It always rounds up
to a multiple of FD_SETSIZE bits.  This will clobber old applications.
It also bzeros a multiple of 6 * FDSETSIZE bits.  This will take a
fairly long time with a large FD_SETSIZE.  It already takes too long.
All this is because select() is specified to handle `struct fd_set's.
The kernel handles whole objects.

Bruce