Date: Wed, 08 Jul 1998 21:45:09 -0600 From: Warner Losh <imp@village.org> To: Stephen Hocking-Senior Programmer PGS Tensor Perth <shocking@prth.pgs.com> Cc: "Daniel O'Connor" <doconnor@gsoft.com.au>, current@FreeBSD.ORG Subject: Re: Rate limit for system calls to prevent denial of service attacks? Message-ID: <199807090345.VAA11270@harmony.village.org> In-Reply-To: Your message of "Thu, 09 Jul 1998 09:46:38 %2B0800." <199807090146.JAA15831@ariadne.tensor.pgs.com> References: <199807090146.JAA15831@ariadne.tensor.pgs.com>
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In message <199807090146.JAA15831@ariadne.tensor.pgs.com> Stephen Hocking-Senior Programmer PGS Tensor Perth writes: : Why does this whole discussion remind me of Softway's Fair SHare : Scheduler, which was developed for a student environment? Basically, : if the machine's under load, it allows you to limit the CPU used by : a given group to X%. It was the subject of a couple of Usenix papers : in the 80s as I recall. Sheesh, I'm sure BDE's heard of it, being a : part of the Sydney Unix Mafia. Related to this is the Lottery Scheduler that some folks have running on a K6-200 box running FreeBSD. Here's the URL that a friend sent me: >>http://www.research.digital.com/SRC/personal/caw/papers.html >> >>Carl A. Waldspurger and William E. Weihl. Lottery Scheduling: Flexible >>Proportional-Share Resource Mangement, Proceedings of the First >>Symposium on Operating Systems Design and Implementation (OSDI '94), >>pages 1-11, Monterey, California, November 1994. Received award for >>best paper. Warner To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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