I am trying to measure context switch time of coroutine and python thread by having 2 threads waiting for a event that is set by the other thread. Threading context switch takes 3.87 µs, which matches my expectation as OS context switch does takes a few thousands of instructions. The coroutine version's context switch is 14.43 µs, which is surprising to me as I was expecting coroutine context switch to be magnitude faster. Is it a Python coroutine issue is my program wrong? Code can be found in this gist Rewriting the program in rust gives more reasonable results: coro: 163 ns thread: 1989 ns Continue reading...
