Scalability tests for read-side synchronization (RCU and others)

modulename: refscale.ko

configname: CONFIG_RCU_REF_SCALE_TEST

Linux Kernel Configuration
└─>Kernel hacking
└─>RCU Debugging
└─>Scalability tests for read-side synchronization (RCU and others)
In linux kernel since version 5.1 (release Date: 2019-05-05)  
This option provides a kernel module that runs performance tests
useful comparing RCU with various read-side synchronization mechanisms.
The kernel module may be built after the fact on the running kernel to be
tested, if desired.

Say Y here if you want these performance tests built into the kernel.
Say M if you want to build it as a module instead.
Say N if you are unsure.

source code: