default or selected kernelversion does not have config value CONFIG_PGTABLE_MAPPING.
Result is shown for kernelversion 6.9.9
Use page table mapping to access object in zsmalloc
configname: CONFIG_PGTABLE_MAPPING
Linux Kernel Configuration
└─>Memory Management options
└─>Use page table mapping to access object in zsmalloc
In linux kernel since version 3.14 (release Date: 2014-03-30)
By default, zsmalloc uses a copy-based object mapping method to
access allocations that span two pages. However, if a particular
architecture (ex, ARM) performs VM mapping faster than copying,
then you should select this. This causes zsmalloc to use page table
mapping rather than copying for object mapping.
You can check speed with zsmalloc benchmark:
https://github.com/spartacus06/zsmapbench
access allocations that span two pages. However, if a particular
architecture (ex, ARM) performs VM mapping faster than copying,
then you should select this. This causes zsmalloc to use page table
mapping rather than copying for object mapping.
You can check speed with zsmalloc benchmark:
https://github.com/spartacus06/zsmapbench