@kernellogger I have tried to find a way to specify the kernel versionn, but --help showed nothing obvious. It also is aodd in that it claims:
On this machine kcbench by default will use a Linux kernel 6.8 configured
by 'make allmodconfig'.
but when starting it, it says:
Linux compiled: 5.15.0 [/home/klausman/.cache/kcbench/linux-5.15/]
So I am not sure there isn't something else that's off.