[Fwd: Re: Help:About xenomai service]

Mauro Salvini mauro.salvini at smigroup.net
Tue Jan 8 11:56:46 CET 2019


-------- Forwarded Message --------
From: PerSiStenCe <2631140698 at qq.com>
To: Mauro Salvini <mauro.salvini at smigroup.net>
Subject: Re: Help:About xenomai service
Date: Tue, 8 Jan 2019 13:58:37 +0800

> Hi
>     I didn't see any stack dump,but something make me confused  that
> why some high latency occured when I ran latency test program in
> shell window(although I have avoid those options that may cause high
> latency).I have tried all of methods that are mentioned in xenomai
> reference manual,like disable legacy USB,disable SMI,but it doesn't
> work and high latency also occurs.
>     In the possible reasons,I'm not sure that whether all of USB
> controllers are coverd by their drivers.Did they possibly cause our
> high latency?BTW,my test snapshot has been uploaded.
>       Regards.
>       wenqiang Liang
>       Zhuahai GREE eletric Litimited by Share Ltd
> ---Original---
> From: "Mauro Salvini"<mauro.salvini at smigroup.net>
> Date: Mon, Jan 7, 2019 17:56 PM
> To: "PerSiStenCe"<2631140698 at qq.com>;"xenomai"<xenomai at xenomai.org>;
> Subject: Re: Help:About xenomai service
> 
> On Mon, 2019-01-07 at 09:23 +0800, PerSiStenCe via Xenomai wrote:
> > Hi
> >     I am testing xenomai 3 on Kaby Lake board(Intel i5-7200u) with
> > xenomai 3.0.5 & Linux 4.9.38(ubuntu 16.04);when I run "latency"
> test
> > program,some overruns always come out during the testing period;is
> > there any consultant service or other format service available?
> 
> Hi,
> this could be related to what reported at [1].
> 
> Please check dmesg to see if a stack dump is generated when overruns
> occours.
> 
> 
> [1] https://xenomai.org/pipermail/xenomai/2018-December/040142.html
> 

Please keep mailing-list in CC.

Regards
Mauro
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