> On 8 Oct 2021, at 10:13, Steven D'Aprano <st...@pearwood.info> wrote: > > Hi Sam, > > On Thu, Oct 07, 2021 at 03:52:56PM -0400, Sam Gross wrote: > >> I've been working on changes to CPython to allow it to run without the >> global interpreter lock. I'd like to share a working proof-of-concept that >> can run without the GIL. > > Getting Python to run without the GIL has never been a major problem for > CPython (and of course some other Python interpreters don't have a GIL > at all).
On the first page of Sam's design overview he references Gilectomy by name. > Single threaded code is still, and always will be, an important part of > Python's ecosystem. A lot of people would be annoyed if the cost of > speeding up heavily threaded Python by a small percentage would be to > slow down single-threaded Python by a large percentage. Quoting that same design document, Sam writes: "The new interpreter (together with the GIL changes) is about 10% faster than CPython 3.9 on the single-threaded pyperformance benchmarks." - Ł
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