View source for Kernel

= Scheduler =

Little is known about the scheduler behavior of the 3DS kernel.

Threads on the [[Glossary#appcore|ARM11 appcore]] seem to use cooperative multithreading, i.e. the only way for a CPU to be assigned to another thread is by invoking a system call. Most system calls trigger the scheduler, although some of them only conditionally do.

Threads on the [[Glossary#syscore|ARM11 syscore]] have been hypothesized to use preemptive multithreading, but this is unconfirmed so far.

It is unknown how the ARM9 CPU core and the two remaining New3DS ARM11 cores are scheduled.