From owner-freebsd-hackers Sun Mar 16 16: 1:45 2003 Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 313EA37B401 for ; Sun, 16 Mar 2003 16:01:43 -0800 (PST) Received: from puffin.mail.pas.earthlink.net (puffin.mail.pas.earthlink.net [207.217.120.139]) by mx1.FreeBSD.org (Postfix) with ESMTP id AB18E43F75 for ; Sun, 16 Mar 2003 16:01:42 -0800 (PST) (envelope-from tlambert2@mindspring.com) Received: from pool0507.cvx22-bradley.dialup.earthlink.net ([209.179.199.252] helo=mindspring.com) by puffin.mail.pas.earthlink.net with asmtp (SSLv3:RC4-MD5:128) (Exim 3.33 #1) id 18ui4N-0005W7-00; Sun, 16 Mar 2003 16:01:36 -0800 Message-ID: <3E751008.818915CA@mindspring.com> Date: Sun, 16 Mar 2003 16:00:08 -0800 From: Terry Lambert X-Mailer: Mozilla 4.79 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: andykinney@advantagecom.net Cc: Julian Elischer , freebsd-hackers@freebsd.org Subject: Re: increasing KVA_PAGES and broken pthreads References: <3E71FB25.27881.363E6F4@localhost> <3E7209EE.8610.39DAB11@localhost> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-ELNK-Trace: b1a02af9316fbb217a47c185c03b154d40683398e744b8a422d04eedaa06edc4ffd832f288b467e5667c3043c0873f7e350badd9bab72f9c350badd9bab72f9c Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Andrew Kinney wrote: > Really? I was under the impression that FreeBSD was capable of > addressing 8TB of RAM if the hardware supports it. Don't > remember which FreeBSD list archive I read that in, but it's not a > topic that seems to come up often since most hardware is limited > to 4GB of address space. I've got access to hardware that can > address 32GB of RAM. Not sure of the exact details of how it > works (multiple external memory managers?), but it's a quad Xeon > board by SuperMicro. No, it can not access 32G of RAM. It can access a 4G window on 32G of RAM. > If it's a question of "is there any application that can ever use that > much RAM", we're certainly testing the limits here. :-) We're not > swapping at all with 4GB, but on several occasions we've gotten > close or swapped a few hundred KB. Our two little 2GHz CPUs > are humming right along, but most of the time they're better than > 60% idle. I imagine that if we pushed the CPUs a bit harder or got > hit with a big traffic spike, we'd probably start swapping and want to > start thinking about a system that can handle more RAM. Suggest you examine: Specifically, search for "Jake Burkholder". Likely, when this is committed, it will be treated as "a different architecture" (IMO), rather than "Patches to i386". See the recent PC98 "It's ISA!"/"It's not!"/"Is too!"/"Is not!"/... discussion for details as to why. -- Terry To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message