2nd RTL Workshop: DIAPM-RTAI Position Paper

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Pierre Cloutier

The development team has perfected and added much functionality to RTAI over the course of the last year. The presentation will review this progress and focus on the following areas

Improvements in the source tree, installation procedure and manual upgrade.
Dynamic CPU frequency and bus frequency calibration.
Port to Linux 2.4: 24.1.x releases and the PPC architecture.
New Fifos: dynamic creation of named fifos, signal and semaphore interfaces.
POSIX 1003.1c thread module with mutexes and condition variables.
RT_MEM_MGR module: Dynamic memory management and C++ support.
LXRT: soft and hard real time modes in user space with symmetrical API.
Trap handling and memory protection while in plain RT and LXRT modes.
LXRT-INFORMED: integration of RTAI, trap handlers and Linux at termination.
RT_LXRT_COM and RT_LXRT_RNET modules: the concept of an extendable LXRT.
MINI_LXRT: timers and tasklets running in user space.
Integration of QNX IPC primitives, proxy messages and qBlk's to LXRT module.
LIBLXRT: efforts to simplify the API for GUI and C++ programmers.
LINUX_SERVER: access to Linux I/O while in LXRT hard real time mode.
Linux Trace Tool Kit: support for RTAI including LXRT.

The LXRT module with its fully symmetrical API provides a safe and flexible tool to quickly implement hard real time programs in user space. Once the program is debugged, it can be easily migrated to the kernel for optimal performance if the application demands it. With CPU clocked near the 1 GHz mark the necessity to execute code in the kernel becomes questionable. Thus, LXRT provides the trust direction of RTAI's future developments.

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Use of this site is governed by our Terms of Service and Privacy Policy. Except where otherwise specified, the contents of this site are copyright © 1999-2008 Ziff Davis Enterprise Holdings Inc. All Rights Reserved. Reproduction in whole or in part in any form or medium without express written permission of Ziff Davis Enterprise is prohibited. Linux is a registered trademark of Linus Torvalds. All other marks are the property of their respective owners.