>>

Did anyone try this?

 >>

I reported back direct to Seb, because there was an initial problem, 
which was resolved.

I have Sebs 3.4.55-1-rtai kernel, plus my own 3.5.7-rtai kernel running 
on 12.04.2 using RTAI-3.9.1 fixed by Shabby and memleak

I also have my own 3.5.7-rtai kernel running on Debian 7.1 using the 
magma realtime from the current CVS
(there are problems with Ubuntu include placements and _I think _missing 
inlines in maths headers, which cause magma not to build properly on 12.04)

I also have the stock Debian rt-preempt kernel running on 7.1 and 
xenomai from John Morris's packages on Ubuntu 12.10

Overall I would rank them on latency
1. rtai
2. xenomai
3. rt-preempt

The best performance by 20% was from my homebrew kernel, but largely 
because it is tailored to the machine it is running on and is far more 
radical in terms of
removing all power management etc than you would probably want to be for 
any sort of distribution.

Sebs kernel is ahead of xenomai on this machine, with rt-preempt 
notionally just behind that.
In straight latency tests rt-preempt was not far off, but I am running 
it full time currently and have had some realtime errors when running a 
sim,
which is a bit alarming given there is no base thread.

regards


------------------------------------------------------------------------------
Get 100% visibility into Java/.NET code with AppDynamics Lite!
It's a free troubleshooting tool designed for production.
Get down to code-level detail for bottlenecks, with <2% overhead. 
Download for free and get started troubleshooting in minutes. 
http://pubads.g.doubleclick.net/gampad/clk?id=48897031&iu=/4140/ostg.clktrk
_______________________________________________
Emc-developers mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/emc-developers

Reply via email to