[Xenomai] Reading /proc/xenomai/stat causes high latencies

Jeroen Van den Keybus jeroen.vandenkeybus at gmail.com
Fri Apr 25 10:15:52 CEST 2014


I'm currently looking in vfile.c. I noticed that the bug gets
triggered in stat mainly because my NR_IRQS is high (2^14) and
vfile_stat_next is simply called much more frequently than in the
other snapshot entries. When removing the call to xnintr_query_next
from vfile_stat_next (replacing ret = xnintr_query_next(...) by ret =
-ENODEV) the problem still persists.


Jeroen.




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