Shortcomings of RT-Linux

Forum: The Linux Kernel Hackers' Guide
Re: Realtime mods anyone? (bill duncan)
Re: Hard real-time now available (Michael K. Johnson)
Keywords: realtime round-robin task scheduling RT-Linux KURT KU Real-Time Linux
Date: Sun, 08 Feb 1998 23:25:41 GMT
From: Balaji Srinivasan <balaji@hegel.ittc.ukans.edu>

Though Victor Yodaikens RT-Linux is great for developing hard real-time applications using Linux, it does not allow real-time tasks to use any of Linux's features (like networking, etc...) To write a real-time application that uses Linux's features, you need to split it into two parts. A part that does not need such features (the real-time part) and a part that needs to use these features (the non-real-time part). These two parts can communicate by using FIFOs (i think). Note that the non real-time part is not given any real-time guarantees. If the real-time application cannot be split into two parts, then you cannot use RT-Linux. See http://hegel.ittc.ukans.edu/projects/kurt for further details. balaji