Very Computer

Hello!

Can anyone explain how linux schedules kernel-space threads created with
clone()?

Do kernel-space threads behave the same as normal linux processes, in terms
of scheduling I mean? Are they scheduled in the same way as normal processes
are and is their scheduling done by the same scheduler?

Does every created kernel-space thread have it's own task_struct created and
added in kernel's process list for scheduling? What is the role of
thread_struct inside task_struct of every process and has it anything to do
with thread scheduling?

Thanx,

Best regards,                        

                                        Mario Zagar                        

Quote:

> Do kernel-space threads behave the same as normal linux processes, in terms
> of scheduling I mean? Are they scheduled in the same way as normal processes
> are and is their scheduling done by the same scheduler?

A process in kernel mode can give up the CPU by calling
the schedule() function. It can also be preempted when it
returns to userspace, the current->need_resched flag is
set when that has to happen.

Quote:

> Does every created kernel-space thread have it's own task_struct created and
> added in kernel's process list for scheduling? What is the role of
> thread_struct inside task_struct of every process and has it anything to do
> with thread scheduling?