Re: [Xenomai] Why get low latency while running stress command?

Dear Lange, On Wed, Jun 13, 2018 at 7:47 PM, Lange Norbert wrote: > I guess what happens is, that the CPU will be put to sleep and/or lower > frequency and voltage between calls, > These transitions are rather slow and will then have to happen on wake-up > Disable any kind of powersaving

Re: [Xenomai] Performance issue with memory allocators

On 6/13/2018 2:06 AM, Philippe Gerum wrote: On 06/12/2018 09:15 PM, Steve Freyder wrote: On 6/12/2018 1:39 AM, Philippe Gerum wrote: On 06/11/2018 10:37 PM, Steve Freyder wrote: On 6/8/2018 7:48 AM, Philippe Gerum wrote: On 05/20/2018 08:15 PM, Philippe Gerum wrote: On 04/27/2018 08:23 PM,

[Xenomai] thread executing udd_register_device() is not rescheduled again

Hi, I currently have a bunch of rtdm devices. One of the devices, from userspace, I use ioctl() to get to kernel space. When in kernel space, I create anther rtdm device (using udd_register_device() API). The API returns success without any issue. However, upon exiting the kernel space,

Re: [Xenomai] how to install the following modules xeno_rtdm xeno_hal xeno_nucleus to use RTnet

Do you have the modules enabled in the CONFIG? How are you configuring your kernel? -Greg On Wed, Jun 13, 2018 at 1:06 AM, Ashok kumar wrote: > Hi, > > I am using xenomai -2.6.2.1 and I have patched the xenomai -2.6.2.1 > with linux kernel 3.4.6 > and I installed using the following commands >

Re: [Xenomai] How to print to dmesg buffer from an RT task

You can try to write to /dev/kmsg, but this is a Linux resource so it will impact which domain your thread is running on. AFAIK user space tasks shouldn't be logging to the kernel log for the most part. One solution I've seen is to create a driver (in your case RTDM driver) to take in log

[Xenomai] How to print to dmesg buffer from an RT task

I'd like my Xenomai task to write to both stdout and also to the kernel's dmesg buffer. It is a periodic task started with rt_task_create(). When I do rt_vfprintf(stdout, ...) it prints to stdout OK, but I also want to send the same string to the dmesg buffer, and I can't call printk() or

[Xenomai] [NOTICE][RESEND] Upcoming migration of the GIT repositories

As hinted in the minutes from the last Xenomai meeting in Brussels [1], the project will be gradually switching a large part of its server infrastructure over to Denx's gitlab server. The first step of this process will happen on June 16-17 2018. Please make sure to read the details of this

Re: [Xenomai] Why get low latency while running stress command?

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[Xenomai] Why get low latency while running stress command?

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Re: [Xenomai] Performance issue with memory allocators

On 06/12/2018 09:15 PM, Steve Freyder wrote: > On 6/12/2018 1:39 AM, Philippe Gerum wrote: >> On 06/11/2018 10:37 PM, Steve Freyder wrote: >>> On 6/8/2018 7:48 AM, Philippe Gerum wrote: On 05/20/2018 08:15 PM, Philippe Gerum wrote: > On 04/27/2018 08:23 PM, Philippe Gerum wrote: >>

[Xenomai-git] Philippe Gerum : include/copperplate: heapobj: make heapmem section C++-friendly

Module: xenomai-3 Branch: next Commit: 5c48d328880b13e8ad3c59f71f97a53eccd398f4 URL: http://git.xenomai.org/?p=xenomai-3.git;a=commit;h=5c48d328880b13e8ad3c59f71f97a53eccd398f4 Author: Philippe Gerum Date: Wed Jun 13 08:50:54 2018 +0200 include/copperplate: heapobj: make heapmem section