From owner-cvs-sys Sat Feb 15 22:58:21 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id WAA16481 for cvs-sys-outgoing; Sat, 15 Feb 1997 22:58:21 -0800 (PST) Received: from sovcom.kiae.su (sovcom.kiae.su [193.125.152.1]) by freefall.freebsd.org (8.8.5/8.8.5) with SMTP id WAA16470; Sat, 15 Feb 1997 22:58:15 -0800 (PST) Received: by sovcom.kiae.su id AA20293 (5.65.kiae-1 ); Sun, 16 Feb 1997 09:42:08 +0300 Received: by sovcom.KIAE.su (UUMAIL/2.0); Sun, 16 Feb 97 09:42:08 +0300 Received: (from ache@localhost) by nagual.ru (8.8.5/8.8.5) id JAA00558; Sun, 16 Feb 1997 09:40:27 +0300 (MSK) Date: Sun, 16 Feb 1997 09:40:21 +0300 (MSK) From: =?KOI8-R?B?4c7E0sXKIP7F0s7P1w==?= To: Bruce Evans Cc: cvs-all@freefall.freebsd.org, CVS-committers@freefall.freebsd.org, cvs-sys@freefall.freebsd.org Subject: Re: cvs commit: src/sys/sys types.h In-Reply-To: <199702160334.OAA05142@godzilla.zeta.org.au> Message-Id: Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-cvs-sys@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk On Sun, 16 Feb 1997, Bruce Evans wrote: > >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. Well, I'll back out it for now, but we need to fix the kernel to handle it properly. > 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. It means that current select algorithm must be rewritten, any ideas? -- Andrey A. Chernov http://www.nagual.ru/~ache/