From owner-freebsd-hackers Wed Jun 20 16:47: 3 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from smtp4ve.mailsrvcs.net (smtp4vepub.gte.net [206.46.170.25]) by hub.freebsd.org (Postfix) with ESMTP id 1807037B403 for ; Wed, 20 Jun 2001 16:47:01 -0700 (PDT) (envelope-from babkin@bellatlantic.net) Received: from bellatlantic.net (client-151-198-117-236.nnj.dialup.bellatlantic.net [151.198.117.236]) by smtp4ve.mailsrvcs.net (8.9.1/8.9.1) with ESMTP id XAA46502699; Wed, 20 Jun 2001 23:46:51 GMT Message-ID: <3B3135EA.1EA183CB@bellatlantic.net> Date: Wed, 20 Jun 2001 19:46:50 -0400 From: Sergey Babkin X-Mailer: Mozilla 4.7 [en] (X11; U; FreeBSD 4.0-19990626-CURRENT i386) X-Accept-Language: en, ru MIME-Version: 1.0 To: tlambert2@mindspring.com Cc: "Ashutosh S. Rajekar" , Matt Dillon , freebsd-hackers@FreeBSD.ORG Subject: Re: max kernel memory References: <3B307373.74C7316A@mindspring.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit 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 Terry Lambert wrote: > > "Ashutosh S. Rajekar" wrote: > > > I guess we beat you to the punch... > > > > > > We have a product which is now shipping, and which currently > > > supports 1,000,000 concurrent connections. > > > > I guess quite a lot of people are at it right now, the prime > > one is NetScaler. If I'm not wrong, they brag about a million > > connections or so, on a box that's running FreeBSD 2.x ... > > inside sources informed me that they rewrote the entire kernel, > > and are now finding it difficult to proceed ... (anybody from > > NetScaler please correct me) > > Rewriting a 2.x kernel for this type of thing is insane; > the DOS vulnerabilities and other bugs alone must be > completely swamping them... > > Their 3200 only has 1G of RAM; you could _barely_ fit the > TCP state for 1,000,000 connections into just 1G of RAM, > and have a tiny amount left over for buffers, drivers, When I had an interview at Netscaler 3 years ago, they were talking about changing to a hardware implementation. My guess is that by now they should have completed that hardware implementation and probably use FreeBSD only as a high-level controlling system. -SB To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message