From owner-freebsd-hackers Fri Jun 5 14:16:13 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id OAA16476 for freebsd-hackers-outgoing; Fri, 5 Jun 1998 14:16:13 -0700 (PDT) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from echonyc.com (echonyc.com [198.67.15.2]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id OAA16212 for ; Fri, 5 Jun 1998 14:15:07 -0700 (PDT) (envelope-from benedict@echonyc.com) Received: from localhost (benedict@localhost) by echonyc.com (8.8.7/8.8.7) with SMTP id RAA00333; Fri, 5 Jun 1998 17:14:49 -0400 (EDT) Date: Fri, 5 Jun 1998 17:14:48 -0400 (EDT) From: Snob Art Genre Reply-To: ben@rosengart.com To: "Caleb R. Miller" cc: "'hackers@freebsd.org'" Subject: Re: FreeBSD as a RTOS In-Reply-To: <01BD9088.27E19890@CALEBM> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG man [id|rt]prio and wrap your lines On Fri, 5 Jun 1998, Caleb R. Miller wrote: > Hello, > > Does anyone know of a FreeBSD port that supports RTOS functionality such as preemptive multitasking? What I hoping for was a scheduler that would enforce time constraints on processes. For instance, I want to schedule some processes to be allowed to run 4 times/sec, some 2 times/sec and some once/sec. The scheduler would let give the highest rate process time, then the next higher rate, and so on with the caveat that a process gets no more cpu time than it's scheduled for, i.e. if process A is scheduled for every 30 seconds and process B for every 15 seconds, if A is not done by the next 15 second interval it is preempted and B is allowed to run. > > Thanks for the help! > Caleb > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-hackers" in the body of the message > Ben "You have your mind on computers, it seems." To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message