Processes & Threads
What a process really is, why threads are cheaper, context switches, and how user code enters the kernel.
- 1✓
What is the difference between a process and a thread — beyond the one-line answer?
senior - 2✓
What happens during a context switch, and why do we say it's expensive?
senior🎬 animated - 3✓
How does the OS create a process? Explain fork/exec and copy-on-write.
staff - 4✓
User-level vs kernel-level threads and the 1:1 / N:M models — why did green threads come back?
staff - 5✓
What is a system call? Walk through what happens between user mode and kernel mode.
senior