One scheme for communication between user-thread library and the kernel is…
2013
One scheme for communication between user-thread library and the kernel is known as
- A.
Lightweight process
- B.
Upcall handler
- C.
Scheduler activation
- D.
Cleanup handler
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Correct answer: C
Scheduler activation is a mechanism that allows communication between the user-level thread library and the kernel. The kernel provides the application with a set of virtual processors, and the application’s thread scheduler maps user threads onto these virtual processors. Kernel provides virtual processors to the application.