[sa46]

The arena experiment is on indefinite hold:

> Note, 2023-01-17. This proposal is on hold indefinitely due to serious API concerns.

https://github.com/golang/go/issues/51317

Potential successor: https://github.com/golang/go/discussions/70257

[truth_seeker]

>Note that the best-case scenario is the elimination of the overheads above to 0, which is at most ~10% in these particular benchmarks. Thus, it's helpful to consider the proportion of GC overhead eliminated relative to that 10% (so, 7% reduction means 70% GC overhead reduction).

Wow. amazing to see of off-heap allocation can be that good

https://go.googlesource.com/proposal/+/refs/heads/master/des...

[pjmlp]

Meanwhile Java and .NET have had off-heap and arenas for a while now.

Which goes to show how Go could be much better, if being designed with the learnings of others taken into account.

The adoption of runtime.KeepAlive() [0], and the related runtime.AddCleanup() as replacement for finalizers are also learnings from other languages [1].

[0] - https://learn.microsoft.com/en-us/dotnet/api/system.gc.keepa...

[1] - https://openjdk.org/jeps/421