Re: [rtl] histoire de tester

[thomas.fruehbeck@alcatel.at (Thomas Fruehbeck)]

Hey guys,
I don't want to bore you to death with this topic, but nevertheless
here come my two bits:
Good old Larousse (a dictionary) says:
efficace: effective, efficient, effacious (what ever that is)

My translation follows: 

..., and I would like to know how to test efficiently this real time kernel.

Dear Tony,
have a look at the homepage http://www.zentropix.com. It has very nice 
statistics _AND_ sample code about tests on responsiveness of Linux versus
RT-Linux.
Have a look at the item 'Testing' (http://www.zentropix.com/realtime/testing.html)
especially.

But: don't take the IRQ response serious ;-). They get a std. Linux response time up to 
9.3 ms!! because they measure the complete path from the hw interrupt through the kernel
driver into the application and back again down the whole chain to the hardware. But let's be
serious, no one would ever call that the measurment of 'IRQ response', would you? 

ChËr Tony!

Il-y-a des resultats interessants sur http://www.zentropix.com/realtime/testing.html.
Ils ont comparÈ Linux et RT-Linux. L· tu peut bien Èvaluer les possibilitÈs de RT-Linux,
et tu vas trouver des exemples logiciels. (ne prends pas l'exemple Interrupt Response Time
with Non Real-Time Linux, c'est stupide).

P.S.: La prochaine fois essaye de poser tes questions en englais, nous tous pourraient repondre
plus facilement.

Thomas

> Tony Gibaud wrote:
> > 
> > Salut ,
> > Je viens d'installer un CD de linux intitulÈ " M.N.I.S REAL TIME LINUX avec
> > noyau 2.0.33 RT 0.6 / 2.1.89 ",et je voudrais savoir comment tester
> > efficacement  ce noyau temps rÈel.En effet j'ai des contraintes de temps
> > assez raides et je voudrais pouvoir Ítre sšr  que le temps rÈel est
> > efficace.Si qqn ý des test ou des fonction bash permettant de tester ce
> > noyau temps rÈel ,je suis preneur.
> 
> Hello,
> I just installed a Linux CD titled :"M.N.I.S REAL TIME LINUX with kernel
> 2.0.33 RT 0.6 / 2.1.89", and i would like to know how to test for jitter. (
> the word efficacement means equalness or eveness).
> I have strict time constraints and i want to be sure of the equal response
> times. If someone has tests or ( bash = bash shell?) functions to test this
> realtime kernel, I would like them.
> 
> my 2 bits ;-)
> translated freely ;-)
> 
> 
> 	J.
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