~lobsters | Bookmarks (77)

I’ve wanted to revisit “Tail Call Optimization in Elixir & Erlang – not as efficient and important as you probably think” (2016) for a while – so much so that I already revisited it once ~5 years ago to show off some benchee 1.0 features. As a reminder, in these the results were: body-recursive was fastest on input ...

TCMalloc implements its per-CPU caches using restartable sequences (man rseq(2)) on Linux. This kernel feature was developed by Paul Turner and Andrew Hunter at Google and Mathieu Desnoyers at EfficiOS. Restartable sequences let us execute a region to completion (atomically with respect to other threads on the same ...