From owner-freebsd-hackers Sat Aug 5 18:13:37 2000 Delivered-To: freebsd-hackers@freebsd.org Received: from resnet.uoregon.edu (resnet.uoregon.edu [128.223.122.47]) by hub.freebsd.org (Postfix) with ESMTP id 9DE1837BBB5 for ; Sat, 5 Aug 2000 18:13:34 -0700 (PDT) (envelope-from dwhite@resnet.uoregon.edu) Received: from localhost (dwhite@localhost) by resnet.uoregon.edu (8.10.1/8.10.1) with ESMTP id e761DRx82936; Sat, 5 Aug 2000 18:13:27 -0700 (PDT) Date: Sat, 5 Aug 2000 18:13:26 -0700 (PDT) From: Doug White To: Dennis Cc: hackers@FreeBSD.ORG Subject: Re: FreeBSD belly up with big config In-Reply-To: <200008051708.NAA00486@etinc.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Sat, 5 Aug 2000, Dennis wrote: > With 1800 interfaces in the system Freebsd seems to use about 50Mhz of cpu > when idle in "interrupts" even when there are no interrupts to process. on > a 500Mhz box it uses 10% of the cpu and it seems linear with different > speed processors. I would suspect the interface list is stored as a linear list and doesn't scale up to that level. > It seems that there is substantial overhead just scanning interfaces for > some routine maintenance...is there any hope of alleviating this deboggle? Send patches to rewrite the interface list to use some other data structure. Doug White | FreeBSD: The Power to Serve dwhite@resnet.uoregon.edu | www.FreeBSD.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message