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This wiki is being migrated to the Linux Foundation Real-Time Linux Project hosted wiki: https://wiki.linuxfoundation.org/realtime/start New content should be added there while the migration is in process.

Real-Time Linux Wiki

"Controlling a laser with Linux is crazy, but everyone in this room is crazy in his own way. So if you want to use Linux to control an industrial welding laser, I have no problem with your using PREEMPT_RT." -- Linus Torvalds

Welcome to the RT Wiki, the Wiki Web for the CONFIG_PREEMPT_RT community, and real-time Linux in general.

Please support us and help to extend this wiki. Thank you!

More about RT Wiki

Documentation Frequently Asked Questions CONFIG_PREEMPT_RT Patch RT Patch tar files Actively maintained PREEMPT_RT kernel patces Latest 4.4-rt Latest 4.1-rt Latest 4.0-rt Latest 3.18-rt Latest 3.14-rt Latest 3.12-rt Latest 3.10-rt 3.4-rt Stable README 3.2-rt Stable README No longer actively maintained 3.0-rt 3.0 README 2.6.33 2.6.31 2.6.29 2.6.26 2.6.25 2.6.24 2.6.23 2.6.22 rt-tests(testsuite) git repo rt-tests tarballs RT PREEMPT HOWTO Reporting Bugs Building Embedded Linux Systems, 2nd edition Earliest Deadline First, EDF papers Oleg's QRCU RCU (read/copy/update) LWN article Parallel Algorithm Verification of QRCU More Documentation Tips and Techniques HOWTO: Build an RT-application CPU shielding using /proc and /dev/cpuset Cpuset management utility/tutorial How to tune your IRQ priorities for low-latency audio More Tips and Techniques Utilities Cpuset Management Utility RT Watchdog OSADL Real-Time Live Linux CD O(1) Memory Allocator ketchup for pulling the latest -rt patches Schedtop utility More Utilities Benchmarks and Test Cases rt-tests Testing rt-tests Compile options with mock (chroot environment) Cyclictest rteval PI Mutex Test FTQ Preemption Test ipbench LTP(Realtime Test Tree) (formerly IBM Test Cases) Worstcase Latency Test Scenario low latency audio / scheduling latency tests/realtime audio (pertaining to 2.2 and early 2.4 kernels, of historical interest) Real-Time Micro Benchmarks (RT Java, C++, and C) More Benchmarks

Wiki News 2012-10-20: New page: Reporting Bugs 2012-10-20: New Page: Rteval 2010-09-15: New page: Systems based on Real time preempt Linux 2009-03-19: New page: I/Otop utility 2008-10-21: New page: Schedtop utility 2008-09-13: New page: IO CPU Affinity 2008-05-23: New page: Ftrace 2008-05-07: New page: Cpuset Management Utility 2007-10-23: New page: Preemption test 2007-10-18: New page: Fixed Time Quanta Benchmark (FTQ) More News Community News 2016-06-23 Real-Time Summit 2016 CFP 2016-05-13: rt-tests version 1.0 2015-10-05: The Linux Foundation Announces Project to Advance Real-Time Linux 2015-09-28: ANNOUNCE 4.1.7-rt8 gmane 2015-09-28: ANNOUNCE rt-tests-0.94 2015-06-18: RTLWS 17 (Austria October 21-22) Call for Papers (Deadline Aug 2, 2015) 2015-05-20: Announce 4.0.4-rt1 2015-01-27: Stage win for real-time Linux Stage win for real-time Linux (in german) 2013-11-06: The future of realtime Linux The future of realtime Linux, by Jake Edge 2013-07-24: RTLWS15 15th Real Time Linux Workshop, October 28 to October 31 at the Dipartimento Tecnologie Innovative, Scuola Universitaria Professionale della Svizzera Italiana in Lugano-Manno, Switzerland - Call for papers (ASCII) - Abstract Submission 2012-05-15: RTLWS14 14th Real Time Linux Workshop, October 18 to 20, 2012 at the Department of Computer Science, University of North Carolina at Chapel Hill - Call for papers (ASCII) - Abstract Submission 2011-03-13: RTLWS13 13th Real-Time Linux Workshop on October 20 to 22, 2011 in Prague, Czech Republic - Call for Papers in ASCII - Registration - Abstract Submission 2010-07-05: RTECC (July 29, 2010), Real-Time & Embedded Computing Conference in Portland, OR. Darren Hart, rt wiki admin, to give luncheon keynote: Linux, Real-Time, and Fragmentation. 2010-04-08: RTLWS12 Twelfth Real-Time Linux Workshop on October 25 to 27, 2010 in Nairobi, Kenya (LWN Article) 2009-06-17: Cpuset Version 1.5.1 released. Download packages from the build service for many popular distros here. 2009-06-15: RTLWS11 Eleventh Real-Time Linux Workshop on September 28 to 30, 2009 in Dresden, Germany 2009-03-02: OSPERT 2009 (Jul 2-4), Fifth International Workshop on Operating Systems Platforms for Embedded Real-Time Applications 2008-05-29: RTLWS10 Tenth Real-Time Linux Workshop at the University of Guadalajara, Mexico. 2008-04-27: multi-reader rwlock + adaptive locking = near mainline performance release !! 2008-04-27: Ubuntu Ships Real-Time Hardy 2008-01-23: 9th Real-Time Linux Workshop videos available from Free Electrons 2008-01-02: Real-time Linux Tests have been integrated into the LTP 2007-11-25: LinuxDevices.com about Ninth Real-Time Linux Workshop, with papers 2007-10-23: Ubuntu Ships Real-Time in Gutsy More News Industry News 2008-10-22: Presentations from the Linux Foundation End User Summit 2008 2007-12-05: Red Hat Announces Messaging, Realtime, Grid product (MRG) 2007-11-27: Novell Ships Suse Linux Real Time Enterprise More News Further Information Articles and Publications Glossary Mailing Lists Important Real-Time Links IRC-Channels

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