From owner-freebsd-questions Sat Dec 14 15:24:11 2002 Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id E671F37B404 for ; Sat, 14 Dec 2002 15:24:09 -0800 (PST) Received: from mail.econolodgetulsa.com (mail.econolodgetulsa.com [198.78.66.163]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9704043EA9 for ; Sat, 14 Dec 2002 15:24:09 -0800 (PST) (envelope-from user@mail.econolodgetulsa.com) Received: from mail (user@mail [198.78.66.163]) by mail.econolodgetulsa.com (8.12.3/8.12.3) with ESMTP id gBENO9Zb072111; Sat, 14 Dec 2002 15:24:09 -0800 (PST) (envelope-from user@mail.econolodgetulsa.com) Date: Sat, 14 Dec 2002 15:24:09 -0800 (PST) From: Josh Brooks To: Kris Kennaway Cc: freebsd-questions@freebsd.org Subject: Re: NMBCLUSTERS over 4096 dangerous in any way ? In-Reply-To: <20021214231934.GA27873@rot13.obsecurity.org> Message-ID: <20021214152220.I77087-100000@mail.econolodgetulsa.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Ok, understood - that answers my question and the one I just posted. So ... in 4.4 KVA space was, by default ... I forget ? So I guess my question has now morphed into: - if the machine is doing nothing but firewalling (so there are no other demands on KVM/KVA) how high can you set NMBCLUSTERS to before you start to get close to the default KVA in fbsd 4.4 ? (actually I think the default is the same in all 4.x, just the method of changing it is different) comments ? thanks! On Sat, 14 Dec 2002, Kris Kennaway wrote: > On Sat, Dec 14, 2002 at 02:36:39PM -0800, Josh Brooks wrote: > > > 1. any comments on raising NMBCLUSTERS to 8192 ? any other values that > > need to be tuned to support that ? > > > > 2. what is the max I could safely raise NMBCLUSTERS to ? > > Increasing NMBCLUSTERS will increase the use of kernel memory. This > is okay as long as you have enough to support it :) You'll get panics > if you set it too high. > > Kris > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message