Re: [Xenomai] Context switch to secondary mode in xenomai tasks

On 04/07/2018 09:57 AM, Philippe Gerum wrote: > On 04/06/2018 06:51 PM, C Smith wrote: >> Hi all-- >> >> Our real time application has a main rt_task which runs concurrently with >> several other rt_tasks (spawned using rt_task_create) and we are concerned >> about a context switch in one of the

Re: [Xenomai] Context switch to secondary mode in xenomai tasks

On 04/06/2018 06:51 PM, C Smith wrote: > Hi all-- > > Our real time application has a main rt_task which runs concurrently with > several other rt_tasks (spawned using rt_task_create) and we are concerned > about a context switch in one of the tasks. The problematic task uses > libxml2 to parse

Re: [Xenomai] Context switch to secondary mode in xenomai tasks

@xenomai.org Subject: Re: [Xenomai] Context switch to secondary mode in xenomai tasks Check here: https://xenomai.org/2014/08/porting-a-linux-application-to-xenomai-dual-kernel/#Chasing_the_unwanted_mode_switches On Fri, Apr 6, 2018 at 1:39 PM, C Smith <csmithquesti...@gmail.com> wrote: > Ho

Re: [Xenomai] Context switch to secondary mode in xenomai tasks

Check here: https://xenomai.org/2014/08/porting-a-linux-application-to-xenomai-dual-kernel/#Chasing_the_unwanted_mode_switches On Fri, Apr 6, 2018 at 1:39 PM, C Smith wrote: > How can we verify which tasks are switching to secondary mode? We know the > xml parser

Re: [Xenomai] Context switch to secondary mode in xenomai tasks

How can we verify which tasks are switching to secondary mode? We know the xml parser definitely is switching to secondary mode, setting T_WARNSW, causing the application to send the SIGXCPU signal, but we don't know if it's affecting the other tasks. On Fri, Apr 6, 2018 at 10:17 AM, Greg

Re: [Xenomai] Context switch to secondary mode in xenomai tasks

If a tasks switches to secondary mode it would act like a normal Linux thread. I haven't used Xenomai 2.6 in a while but if you are seeing both tasks drop to secondary mode you may want to list the resources that they are sharing and how you are sharing them and then we can see if something would

Re: [Xenomai] Context switch to secondary mode in xenomai tasks

The tasks manipulate shared data however they do not communicate directly. The rt_task which parses the xml document and the main rt_task are running periodically at different rates using rt_task_set_periodic. On Fri, Apr 6, 2018 at 9:54 AM, Greg Gallagher wrote: > Do the

Re: [Xenomai] Context switch to secondary mode in xenomai tasks

Do the tasks communicate with each other? -Greg On Fri, Apr 6, 2018 at 12:51 PM, C Smith wrote: > Hi all-- > > Our real time application has a main rt_task which runs concurrently with > several other rt_tasks (spawned using rt_task_create) and we are concerned >

[Xenomai] Context switch to secondary mode in xenomai tasks

Hi all-- Our real time application has a main rt_task which runs concurrently with several other rt_tasks (spawned using rt_task_create) and we are concerned about a context switch in one of the tasks. The problematic task uses libxml2 to parse an xml document sent over ethernet which seems to