CONFIG_HWZOL is not available for thedefaultarchitecture x86.
Result is shown for architecture nds32
default or selected kernelversion does not have config value CONFIG_HWZOL.
Result is shown for kernelversion 6.9.9
hardware zero overhead loop support
configname: CONFIG_HWZOL
Linux Kernel Configuration
└─>hardware zero overhead loop support
In linux kernel since version 4.2 (release Date: 2015-08-30)
A set of Zero-Overhead Loop mechanism is provided to reduce the
instruction fetch and execution overhead of loop-control instructions.
It will save 3 registers($LB, $LC, $LE) for context saving if say Y.
You don't need to save these registers if you can make sure your user
program doesn't use these registers.
If unsure, say N.
instruction fetch and execution overhead of loop-control instructions.
It will save 3 registers($LB, $LC, $LE) for context saving if say Y.
You don't need to save these registers if you can make sure your user
program doesn't use these registers.
If unsure, say N.