From owner-freebsd-hackers Sun Dec 19 17:15:45 1999 Delivered-To: freebsd-hackers@freebsd.org Received: from overcee.netplex.com.au (overcee.netplex.com.au [202.12.86.7]) by hub.freebsd.org (Postfix) with ESMTP id 179E414EDB; Sun, 19 Dec 1999 17:15:41 -0800 (PST) (envelope-from peter@netplex.com.au) Received: from netplex.com.au (localhost [127.0.0.1]) by overcee.netplex.com.au (Postfix) with ESMTP id 52D151CCF; Mon, 20 Dec 1999 09:15:37 +0800 (WST) (envelope-from peter@netplex.com.au) X-Mailer: exmh version 2.1.1 10/15/1999 To: Tony Finch Cc: hackers@freebsd.org, jkh@freebsd.org Subject: Re: Practical limit for number of TCP connections? In-Reply-To: Message from Tony Finch of "Sun, 19 Dec 1999 23:55:22 GMT." Date: Mon, 20 Dec 1999 09:15:37 +0800 From: Peter Wemm Message-Id: <19991220011537.52D151CCF@overcee.netplex.com.au> Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Tony Finch wrote: > Peter Wemm wrote: > > > >I'm aware of boxes having been tested to ~100,000 connections if my memory > >serves correctly. I know there were problems going over 64k connections at > >one point due to a 16 bit reference counter in the routes. > > The fix for this hasn't been MFCed yet (rev 1.30 of sys/net/route.h). > A related problem with the ifa_refcnt field has been fixed. eep.. I thought this was all done for 3.4.. ouch.. On the other hand, to run that many connections generally requires the tcp timer enhancements or it spends a lot of time doing list processing. Cheers, -Peter -- Peter Wemm - peter@FreeBSD.org; peter@yahoo-inc.com; peter@netplex.com.au To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message