On 7/28/21 1:15 AM, hanabi1224 wrote: > On Wednesday, 28 July 2021 at 01:12:16 UTC, Denis Feklushkin wrote: >> Spawning fiber is expensive > > Sorry but I cannot agree with the logic behind this statement, the whole > point of using fiber is that, spwaning system thread is expensive, thus > ppl create lightweight thread 'fiber'
I assume the opposite because normally, the number of times a thread or fiber is spawned is nothing compared to the number of times they are context-switched. So, spawning can be expensive and nobody would realize as long as switching is cheap.
There are other reasons why fibers are faster than threads all related to context switching:
- CPU cache efficiency - Translation lookaside buffer (TLB) efficiency - Holding on to the entirety of the time slice given by the OS Ali P.S. The little I know on these topics is included in this presentation: https://dconf.org/2016/talks/cehreli.html
