From owner-freebsd-arch Tue Oct 8 9:11:33 2002 Delivered-To: freebsd-arch@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 1037F37B401 for ; Tue, 8 Oct 2002 09:11:32 -0700 (PDT) Received: from corbulon.video-collage.com (corbulon.video-collage.com [64.35.99.179]) by mx1.FreeBSD.org (Postfix) with ESMTP id A7D7743E3B for ; Tue, 8 Oct 2002 09:11:27 -0700 (PDT) (envelope-from mi+mx@aldan.algebra.com) Received: from misha.murex.com (250-217.customer.cloud9.net [168.100.250.217]) by corbulon.video-collage.com (8.12.2/8.12.2) with ESMTP id g98Fmv1P093751 (version=TLSv1/SSLv3 cipher=RC4-MD5 bits=128 verify=FAIL); Tue, 8 Oct 2002 11:48:57 -0400 (EDT) (envelope-from mi+mx@aldan.algebra.com) X-Authentication-Warning: corbulon.video-collage.com: Host 250-217.customer.cloud9.net [168.100.250.217] claimed to be misha.murex.com Content-Type: text/plain; charset="iso-8859-1" From: Mikhail Teterin Organization: Virtual Estates, Inc. To: Terry Lambert , "Vladimir B. Grebenschikov" , arch@FreeBSD.org Subject: Re: using mem above 4Gb was: swapon some regular file Date: Tue, 8 Oct 2002 11:50:47 -0400 User-Agent: KMail/1.4.3 References: <200210071630.42512.mi+mx@aldan.algebra.com> <3DA2F716.C5B69C7C@mindspring.com> <3DA2FC9F.22C66877@mindspring.com> In-Reply-To: <3DA2FC9F.22C66877@mindspring.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Message-Id: <200210081150.47943.mi+mx@aldan.algebra.com> X-Scanned-By: MIMEDefang 2.15 (www dot roaringpenguin dot com slash mimedefang) Sender: owner-freebsd-arch@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Tuesday 08 October 2002 11:41 am, Terry Lambert wrote: = Terry Lambert wrote: = > So whatever connections you are getting now... halve that, or less, = > to get a window for your RAM disk (you will need KVA for mappings = > for all the memory that *can* be in the window, etc.). = = To emphasize this: if you are using 4K pages, you will need: = = 4K/1M * 64G = 256M = = ...1/4 of 1G of memory outside the window, just for page tables. = = Also, if we still were using an mbuf per connection for the = template, for 1,000,000 connections, that's 256M of RAM -- another = 1/4 gig. = Yeah, most people don't think in these terms; personally, I like = to call it "Extreme BSD". 8-). Although this is fascinating read -- it getting further and further away from the original subject. And from the modified one too -- I don't believe Vladimir said anything about networking... -mi To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message