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: > 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 Gallagher <g...@embeddedgreg.com> > wrote: >> >> 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 cause mode switches. Are you seeing both threads >> drop to secondary mode? >> >> -Greg >> >> On Fri, Apr 6, 2018 at 1:01 PM, C Smith <csmithquesti...@gmail.com> wrote: >> > 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 <g...@embeddedgreg.com> >> > wrote: >> >> >> >> Do the tasks communicate with each other? >> >> >> >> -Greg >> >> >> >> On Fri, Apr 6, 2018 at 12:51 PM, C Smith <csmithquesti...@gmail.com> >> >> 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 an xml document sent over ethernet which seems to >> >> > cause >> >> > a >> >> > switch to secondary mode. Would this also switch the other tasks we >> >> > are >> >> > running to secondary mode, or is it isolated? >> >> > >> >> > We are running Xenomai 2.6.2 and Xenomai 2.6.5 in our application. >> >> > _______________________________________________ >> >> > Xenomai mailing list >> >> > Xenomai@xenomai.org >> >> > https://xenomai.org/mailman/listinfo/xenomai >> > >> > > > _______________________________________________ Xenomai mailing list Xenomai@xenomai.org https://xenomai.org/mailman/listinfo/xenomai
