Evaluating RTEMS performances (jitter)

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Hi all,

I'm looking for advice to evaluate RTEMS performance, given that there are
*only* RT tasks
and that an intrusive non-RT task cannot disrupt the system (it's very
different on   Linux/PREEMPT_RT or Linux Xenomai as most of the tasks
a non RT - SCHED_OTHER).

A colleague mentioned writing a "low" priority task consuming CPU time
(such as doing computation) and other higher priority periodic tasks. We
can then measure the influence of the first task on the periodic tasks.

Do you have pointers to existing benchmarks ? (preferably using POSIX).

Thx by advance


-- 

Pierre FICHEUX -/- CTO Smile ECS, France -\- [email protected]
                             http://www.smile.fr
                             https://smile.eu/fr/offres/embarque-iot
I would love to change the world, but they won't give me the source code

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<div dir=3D"ltr"><div><div class=3D"gmail_default" style=3D"font-family:ari=
al,sans-serif">Hi all,</div><div class=3D"gmail_default" style=3D"font-fami=
ly:arial,sans-serif"><br></div><div class=3D"gmail_default" style=3D"font-f=
amily:arial,sans-serif">I&#39;m looking for advice to evaluate RTEMS perfor=
mance, given that there are *only* RT tasks<br>and that an intrusive non-RT=
 task cannot disrupt the system (it&#39;s very different on=C2=A0 =C2=A0Lin=
ux/PREEMPT_RT or Linux Xenomai as most of the tasks a=C2=A0non=C2=A0RT=C2=
=A0- SCHED_OTHER).<br><br>A colleague mentioned writing a &quot;low&quot; p=
riority task consuming CPU time (such as doing computation) and other highe=
r priority periodic tasks. We can then measure the influence of the first t=
ask on the periodic tasks.</div><br clear=3D"all"></div><div><div class=3D"=
gmail_default" style=3D"font-family:arial,sans-serif">Do you have pointers =
to existing benchmarks ? (preferably using POSIX).</div><div class=3D"gmail=
_default" style=3D"font-family:arial,sans-serif"><br></div><div class=3D"gm=
ail_default" style=3D"font-family:arial,sans-serif">Thx by advance</div><br=
></div><div><br></div><span class=3D"gmail_signature_prefix">-- </span><br>=
<div dir=3D"ltr" class=3D"gmail_signature" data-smartmail=3D"gmail_signatur=
e"><div dir=3D"ltr"><pre style=3D"margin-top:0px;margin-bottom:0px;padding:=
0px;font-size:12px;color:rgb(51,51,51);white-space:pre-wrap!important">Pier=
re FICHEUX -/- CTO Smile ECS, France -\- <a href=3D"mailto:pierre.ficheux@s=
mile.fr" style=3D"color:rgb(1,134,186)" target=3D"_blank">pierre.ficheux@sm=
ile.fr</a>
                             <a href=3D"http://www.smile.fr/" style=3D"colo=
r:rgb(1,134,186)" target=3D"_blank">http://www.smile.fr</a>
                             <a href=3D"https://smile.eu/fr/offres/embarque=
-iot" style=3D"color:rgb(1,134,186)" target=3D"_blank">https://smile.eu/fr/=
offres/embarque-iot</a>
I would love to change the world, but they won&#39;t give me the source cod=
e</pre></div></div></div>

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