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Difference between revisions of "Real Time"

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* Please note that the primary source of information for Real Time Linux information is the new [http://rt.wiki.kernel.org/ RTWiki].
 
* Please note that the primary source of information for Real Time Linux information is the new [http://rt.wiki.kernel.org/ RTWiki].
  
== Technology/Project pages ==
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== Software Projects ==
 
* [[Realtime Preemption]] - Ingo Molnar's patchset to add realtime preemption to the 2.6 Linux kernel
 
* [[Realtime Preemption]] - Ingo Molnar's patchset to add realtime preemption to the 2.6 Linux kernel
 
* [[Kernel Timer Systems]] - Various new proposals for changing the kernel timing system
 
* [[Kernel Timer Systems]] - Various new proposals for changing the kernel timing system
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* [[High Resolution Timers]] - A system to support timers with sub-jiffy resolution
 
* [[High Resolution Timers]] - A system to support timers with sub-jiffy resolution
 
* [[Variable Scheduling Timeouts]] - A system to support variable timeouts for periodic system activities (also known as Tickless)
 
* [[Variable Scheduling Timeouts]] - A system to support variable timeouts for periodic system activities (also known as Tickless)
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== Hardware Implementations ==
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Ti AM18XX PRUSSv1
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[[Ti AM33XX PRUSSv2 | Ti_AM33XX_PRUSSv2]]
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Tools for PRUSS
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 +
  
 
== Documents ==
 
== Documents ==
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*** Part 2, [http://tree.celinuxforum.org/CelfPubWiki/ELCEurope2008Presentations?action=AttachFile&do=get&target=adventures_in_real_time_performance_tuning_part_2-no_hidden.pdf slides] and [http://free-electrons.com/pub/video/2008/elce/elce2008-rowand-adventures-real-time-part2.ogv video] ELCE 2008 version
 
*** Part 2, [http://tree.celinuxforum.org/CelfPubWiki/ELCEurope2008Presentations?action=AttachFile&do=get&target=adventures_in_real_time_performance_tuning_part_2-no_hidden.pdf slides] and [http://free-electrons.com/pub/video/2008/elce/elce2008-rowand-adventures-real-time-part2.ogv video] ELCE 2008 version
 
** Musings On Analysis of Measurements of a Real-Time Workload [http://tree.celinuxforum.org/CelfPubWiki/ELC2009Presentations?action=AttachFile&do=get&target=musings_on_analysis_of_measurements_of_a_real-time_workload.pdf slides] ELC 2009 version and [http://free-electrons.com/pub/video/2009/elce/elce2009-rowand-measurement-diagnostic-tools.ogv video]
 
** Musings On Analysis of Measurements of a Real-Time Workload [http://tree.celinuxforum.org/CelfPubWiki/ELC2009Presentations?action=AttachFile&do=get&target=musings_on_analysis_of_measurements_of_a_real-time_workload.pdf slides] ELC 2009 version and [http://free-electrons.com/pub/video/2009/elce/elce2009-rowand-measurement-diagnostic-tools.ogv video]
** Real-Time Linux Failure [[Media:Real_time_linux_failure.pdf|slides]] ELC 2010 version
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** Real-Time Linux Failure [[Media:Real_time_linux_failure.pdf|slides]] ELC 2010 version and [http://free-electrons.com/pub/video/2011/elc/elc-2011-rowand-real-time-issues-i-cache-locks.webm full HD video] and [http://free-electrons.com/pub/video/2011/elc/elc-2011-rowand-real-time-issues-i-cache-locks-x450p.webm 450x800 video]
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** How Linux PREEMPT_RT Works [[Media:elce11_rowand.pdf|slides]] ELCE 2011 version
 
* ''Real-time vs real-fast, how to choose'', conference given by Paul E. McKenney at the Ottawa Linux Symposium 2008. [http://ols.fedoraproject.org/OLS/Reprints-2008/mckenney-reprint.pdf Paper] and [http://free-electrons.com/pub/video/2008/ols/ols2008-paul-mckenney-real-time-vs-real-fast.ogg video]
 
* ''Real-time vs real-fast, how to choose'', conference given by Paul E. McKenney at the Ottawa Linux Symposium 2008. [http://ols.fedoraproject.org/OLS/Reprints-2008/mckenney-reprint.pdf Paper] and [http://free-electrons.com/pub/video/2008/ols/ols2008-paul-mckenney-real-time-vs-real-fast.ogg video]
  
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** The paper has an extensive list of references.
 
** The paper has an extensive list of references.
 
* Tutorial [[RT-Preempt Tutorial]]
 
* Tutorial [[RT-Preempt Tutorial]]
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* [https://www.osadl.org/Realtime-Linux.projects-realtime-linux.0.html OSADL Realtime Page] with realtime latency [https://www.osadl.org/Continuous-latency-monitoring.qa-farm-monitoring.0.html testing] farm.
  
 
== Further Open Source Projects ==
 
== Further Open Source Projects ==

Revision as of 21:52, 30 November 2011

This page has information about Real-time usage of Linux. Also this page has information about timing systems for Linux. This is of interest to CE Linux Forum members, because many consumer electronics products have realtime requirements (e.g. in the areas of multi-media presentation, or communications)

Real Time Wiki

  • Please note that the primary source of information for Real Time Linux information is the new RTWiki.

Software Projects

Hardware Implementations

Ti AM18XX PRUSSv1

Ti_AM33XX_PRUSSv2

Tools for PRUSS


Documents

Further Open Source Projects

  • Xenomai - Real-time development framework, closely cooperating with the Linux kernel. Among other features, it provides a migration path from various RTOSes like VxWorks, PSOS+, etc. to Linux based on so-called skins.