From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: henning.richter@domain.hid
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai-help] help with xenomai configuration
Date: Tue, 05 May 2009 15:23:15 +0200 [thread overview]
Message-ID: <4A003DC3.4060007@domain.hid> (raw)
In-Reply-To: <OF9CF4E5FB.BA5862BC-ONC12575AD.00275D59-C12575AD.00285FDC@datacon.at>
henning.richter@domain.hid wrote:
>
> Hi,
>
> I use a KUbuntu 8.10 with kernel 2.6.27.7, xenomai 2.4.6.1 and the latest
> rtnet version.
> I set up the EthercatMasterLibrary and send some Frames (size of ~1200
> byte) cylical to my Beckhoff devices.
> Measuring the time (via rt_read_timer-function of timer.h) handing the
> frames over to the NIC last between 5 and 10 us. (its the low_level_send)
> Measuring the time at the application layer is takes ~250 - 350 us. So I am
> loosing quite a lot time in between.
>
> Maybe there is sth. wrong with my xenomai configuration.
> I run the 'xeno-test' (results below) but the test stop at generation load.
Yes, xeno-test has a known issue when run without bash, and ubuntu no
longer uses bash by default. So, try running xeno-test with bash.
Alternatively, you can run the latency test directly. Preferably using
the same period as the problematic one with EML.
--
Gilles.
next prev parent reply other threads:[~2009-05-05 13:23 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-05 7:21 [Xenomai-help] help with xenomai configuration henning.richter
2009-05-05 13:23 ` Gilles Chanteperdrix [this message]
2009-05-05 13:58 ` Philippe Gerum
2009-05-05 14:43 ` Gilles Chanteperdrix
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