high cpu usage independent from Traffic
we've recognised since a few weeks every day for about 4 hours from 9 to 13 very high cpu-usage on Control-Plane and Analysis-Plane.
Overall concurrent Client-side connections between 1200 and 1800
That's also on the standby-Machine, so it's independent from Traffic (this F5 is for Traffic from Web and terminates ssl)
the hardware is i4800, but it's the same on our virtual Test-Machine
Version: 184.108.40.206, on Test: 220.127.116.11
Any hint, where to look for the cause?
If you realised that high Control plan CPU due to ASM Obfuscation process , that's not an issue or can cause a negative impact :
Below Article from the first KB I sent above " https://my.f5.com/manage/s/article/K12201682 "
- The obfuscation process consumes available resources with a lower priority. If more important processes need CPU/Memory the obfuscation is de-prioritized or will wait until resources are available.