Date: Sun, 16 Feb 1997 14:34:13 +1100 From: Bruce Evans <bde@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 Message-ID: <199702160334.OAA05142@godzilla.zeta.org.au>
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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
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