[Xenomai] ipipe-gch-ipipe-3.0-imx6q latency
ericvic at 163.com
Mon Dec 14 03:13:57 CET 2015
It is much better with 3.18.20 ,it is the test result with xenomai-3.0.1 500us cycle ,still a little big ,thanks!
-sh-2.05b# [ 154.812032] pmax: 0.597303 ms
[ 245.216863] pmax: 0.600940 ms
[ 249.992395] pmax: 0.603288 ms
[ 277.280006] pmax: 0.610470 ms
At 2015-12-08 19:23:20, "Gilles Chanteperdrix" <gilles.chanteperdrix at xenomai.org> wrote:
>On Tue, Dec 08, 2015 at 06:43:02PM +0800, eric wrote:
>> I use xenomai-2.6.4 with kernel
>> ipipe-gch-ipipe-3.0-imx6q.tar.bz2 with sample test , build
>> the flow module with timer 250us cycle,if I make a user
>> space application with memory copy ,the kernel latency
>> will very big ,why??? thanks
>Do you have the same problem if you use a recent mainline kernel?
>Such as 3.14 or 3.18 ?
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