CONFIG_VMSPLIT_3_5G is not available for thedefaultarchitecture x86.
Result is shown for architecture tile
default or selected kernelversion does not have config value CONFIG_VMSPLIT_3_5G.
Result is shown for kernelversion 6.7-rc3

3.5G/0.5G user/kernel split

configname: CONFIG_VMSPLIT_3_5G

Memory split
└─>3.5G/0.5G user/kernel split
In linux kernel since version 2.6.37 (release Date: 2011-01-04)