|
|
|
|
|
|
by vnorilo
1687 days ago
|
|
|
From [1] On processors that have a halt instruction that stops the CPU until an interrupt occurs, such as x86's HLT instruction, it may save significant amounts of power and heat if the idle task consists of a loop which repeatedly executes HLT instructions. -- I don't know how it is implemented in darwin, HLT is a privileged instruction, then again it's kernel_task. 1: https://en.m.wikipedia.org/wiki/Idle_(CPU) |
|
|