default or selected kernelversion does not have config value CONFIG_NET_SCH_CLK_CPU.
Result is shown for kernelversion 5.4.123
CPU cycle counter
configname: CONFIG_NET_SCH_CLK_CPU
Packet scheduler clock source
└─>CPU cycle counter
In linux kernel since version 2.6.12
Say Y here if you want to use the CPU's cycle counter as clock source.
This is a cheap and high resolution clock source, but on some
architectures it is not synchronized on all processors and doesn't
handle cpu clock frequency changes.
The useable cycle counters are:
x86/x86_64 - Timestamp Counter
alpha - Cycle Counter
sparc64 - %ticks register
ppc64 - Time base
ia64 - Interval Time Counter
Choose this if your CPU's cycle counter is working properly.
This is a cheap and high resolution clock source, but on some
architectures it is not synchronized on all processors and doesn't
handle cpu clock frequency changes.
The useable cycle counters are:
x86/x86_64 - Timestamp Counter
alpha - Cycle Counter
sparc64 - %ticks register
ppc64 - Time base
ia64 - Interval Time Counter
Choose this if your CPU's cycle counter is working properly.