Go's channels take a copy of the value you pass to it. Now, if you pass pointers or interfaces, of course you'll have allocations. But it's entirely possible fo

Go's channels take a copy of the value you pass to it. Now, if you pass pointers or interfaces, of course you'll have allocations. But it's entirely possible for two goroutines to communicate over a channel and produce zero allocations, where values put into and taken out of the channel are stored exclusively on the stack.