Date: Wed, 20 Jun 2001 19:46:50 -0400 From: Sergey Babkin <babkin@bellatlantic.net> To: tlambert2@mindspring.com Cc: "Ashutosh S. Rajekar" <asr@softhome.net>, Matt Dillon <dillon@earth.backplane.com>, freebsd-hackers@FreeBSD.ORG Subject: Re: max kernel memory Message-ID: <3B3135EA.1EA183CB@bellatlantic.net> References: <Pine.LNX.4.21.0106201405001.1509-100000@vangogh.indranetworks.com> <3B307373.74C7316A@mindspring.com>
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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
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