On Thu, Mar 1, 2018 at 10:32 PM, Greg Gallagher <g...@embeddedgreg.com> wrote: > Are you using Xenomai 2.6 or 3? If you are using 3 use this guide instead: >
I am using xenomai-3.0.6 > https://xenomai.org/documentation/xenomai-3/html/xeno3prm/group__alchemy__timer.html > > Post back if nothing there can help, but you may want to loot at the > source for some of the utilities that calculate latency as a example > to work from > OK thank you so much. I replaced clock_nanosleep() with : rt_task_sleep() and clock_gettime() with: rt_timer_read(). I think it works fine. I also replaced: printf() with: rt_printf() I guess these are the right replaced for xenomai. But one doubt I still have: I observed that I instead of using rt_task_sleep() , I can also use the combination of: rt_task_set_periodic() and rt_task_wait_period(). Both are working as expected. But I am confused which one is the right one to use? Will there be any difference in measuring latency ? > -Greg > > On Thu, Mar 1, 2018 at 7:37 AM, Pintu Kumar <pintu.p...@gmail.com> wrote: >> Hi, >> >> I have one question about Xenomai native API >> >> 1) What is the native API equivalent for clock_gettime() ? >> >> I have seen this Xenomai native API guide but I could not find it. >> https://xenomai.org/documentation/xenomai-2.6/pdf/native-api.pdf >> >> I have a simple pthread based POSIX application which I converted to native >> API. >> But for calculating the latency difference I using this in both case: >> clock_gettime(CLOCK_MONOTONIC, &now); >> >> But I observed that if I use only NATIVE skin, I could not see any >> latency difference. >> However, if I use POSIX skin I see the latency difference. >> >> So, I want to replace clock_gettime() with native API to find the >> exact difference with native skin. >> >> Or, if there is any other better way to measurement latency difference >> between POSIX API and native API, please let me know. >> >> >> >> Thank You! >> >> Regards, >> Pintu _______________________________________________ Xenomai mailing list Xenomai@xenomai.org https://xenomai.org/mailman/listinfo/xenomai
