default or selected kernelversion does not have config value CONFIG_GCC_PLUGIN_RANDSTRUCT_PERFORMANCE.
Result is shown for kernelversion 6.9.5

Use cacheline-aware structure randomization

configname: CONFIG_GCC_PLUGIN_RANDSTRUCT_PERFORMANCE

Linux Kernel Configuration
└─>General architecture-dependent options
└─>GCC plugins
└─>Use cacheline-aware structure randomization
In linux kernel since version 3.10 (release Date: 2013-06-30)  
If you say Y here, the RANDSTRUCT randomization will make a
best effort at restricting randomization to cacheline-sized
groups of elements. It will further not randomize bitfields
in structures. This reduces the performance hit of RANDSTRUCT
at the cost of weakened randomization.

depends
CONFIG_GCC_PLUGINS
CONFIG_GCC_PLUGIN_RANDSTRUCT
NOT CONFIG_COMPILE_TEST