[Xenomai] Performance impact after switching from 2.6.2.1 to 2.6.4

[Wolfgang Netbal <wolfgang.netbal@sigmatek.at>]

Dear all,

we have moved our application from "XENOMAI 2.6.2.1 + Linux 3.0.43" to 
"XENOMAI 2.6.4. + Linux 3.10.53". Our target is an i.MX6DL. The system 
is now up and running and works stable. Unfortunately we see a 
difference in the performance. Our old combination (XENOMAI 2.6.2.1 + 
Linux 3.0.43) was slightly faster.

At the moment it looks like that XENOMAI 2.6.4 calls 
xnpod_schedule_handler much more often then XENOMAI 2.6.2.1 in our old 
system.  Every call of xnpod_schedule_handler interrupts our main 
XENOMAI task with priority = 95.

I have compared the configuration of both XENOMAI versions but did not 
found any difference. I checked the source code (new commits) but did 
also not find a solution.


Any help would be greatly appreciated.

-- 
Wolfgang Netbal
Softwareentwicklung
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SIGMATEK GmbH & Co KG
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Tel.: +43/6274/4321-0
Fax: +43/6274/4321-300
E-Mail: wolfgang.netbal@sigmatek.at
http://www.sigmatek-automation.at

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