how much better is thread-context switch from process context-switch?

Question

I was just wondering how much efficient is thread context switch as compared to process context-switch. Both involve switching of register values. Is Flushing of TLB in process switch the only thing that creates the difference ?

Does the OS matter? I have read that thread switch is always faster than a process context switch. — vjain27, Apr 01 '11 at 08:24

score 1 · Answer 1 · edited May 23 '17 at 12:19

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On Linux, they are very close to the same thing. See Threads vs Processes in Linux. In Windows, processes are a lot heavier than threads.

edited May 23 '17 at 12:19

Community

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answered Apr 01 '11 at 16:38

Jeff

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how much better is thread-context switch from process context-switch?

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