Although CoreXL Affinity was configured to assign only a specific process to certain CPU cores, some interfaces are still being assigned to those CPU cores.

Example:

• The process "temain" was assigned to CPU 2 and CPU 3 in the $FWDIR/conf/fwaffinity.conf file (either manually, or by running the "fw ctl affinity -s -n <process_name> <cpu ids>" command):

  n temain 3 2
  

• Output of "fw ctl affinity -l -r -v" command shows that some interfaces are also assigned to CPU 2 and CPU 3:

  [Expert@HostName:0]# fw ctl affinity -l -r -v
  CPU 0:  eth2 (irq 83)
  CPU 1:  eth3 (irq 59)
  CPU 2:  eth1 (irq 75)
          temain
  CPU 3:  eth0 (irq 67)
          temain
  CPU 4:  fw_3
  CPU 5:  fw_2
  CPU 6:  fw_1
  CPU 7:  fw_0
  All:    in.geod in.msd fwd rad mpdaemon usrchkd vpnd in.acapd cpd cprid
  

• Output of "$FWDIR/scripts/fwaffinity_used_cpus" script returns a list of CPU cores that are considered as "available to handle IRQs", which contains CPU 2 and CPU 3:

  2
  3
  4
  5
  6
  7