CONFIG_BFIN_PM_WAKEUP_TIME_BENCH is not available for thedefaultarchitecture x86.
Result is shown for architecture blackfin
default or selected kernelversion does not have config value CONFIG_BFIN_PM_WAKEUP_TIME_BENCH.
Result is shown for kernelversion 6.7-rc3

Display the total time for kernel to resume from power saving mode

configname: CONFIG_BFIN_PM_WAKEUP_TIME_BENCH

Linux Kernel Configuration
└─>Kernel hacking
└─>Display the total time for kernel to resume from power saving mode
In linux kernel since version 3.1 (release Date: 2011-10-24)  
Display the total time when kernel resumes normal from standby or
suspend to mem mode.