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0 pointspcwalton8y ago0 comments

Goroutines are threads. They're just not kernel-level threads.

There have been implementations of pthreads that used an M:N model, for instance.

0 comments

For my information, why is M:N so successful for Go and not for pthreads? Is M:N more practical for systems with a particular kind of garbage collector?

pcwaltonOP8y ago

In my opinion, it's because the Go team put a ton of effort into getting M:N working and didn't rigorously evaluate any other alternatives in Go, once moving GC was implemented.

I'm not convinced that 1:1 wouldn't have been a perfectly reasonable implementation strategy for Go.

weberc28y ago

This is surprising. It seems like Go gets pretty high praise from all over for its threading model, and it seems like there are relatively few high-performance servers that are built with 1:1. Am I wrong about that? If not, what explains this?

j / k navigate · click thread line to collapse

0 pointspcwalton8y ago0 comments

Goroutines are threads. They're just not kernel-level threads.

There have been implementations of pthreads that used an M:N model, for instance.

0 comments

weberc28y ago

For my information, why is M:N so successful for Go and not for pthreads? Is M:N more practical for systems with a particular kind of garbage collector?

pcwaltonOP8y ago

In my opinion, it's because the Go team put a ton of effort into getting M:N working and didn't rigorously evaluate any other alternatives in Go, once moving GC was implemented.

I'm not convinced that 1:1 wouldn't have been a perfectly reasonable implementation strategy for Go.

weberc28y ago

j / k navigate · click thread line to collapse