On 10Feb2021 21:51, James Lu <jam...@gmail.com> wrote: >Directly removing the Global Interpreter Lock (GIL) would break a lot >of libraries that implicitly assume it is there. What if Python had >"realms" that each had separate GILs? > >The "realms" (not sure if "subinterpreter" is the correct term here) >could share objects.
If realms can shared objects then they'd need the same GIL, because otherwise objects are not protected from concurrency via different realms. CPython code and C code, unless it has itself released the GIL, assumes it is the exclusive user of objects - that's what the GIL means. Separate GILs would mean different realms' GIL-holding threads could run against a shared object at the same time. Cheers, Cameron Simpson <c...@cskk.id.au> -- https://mail.python.org/mailman/listinfo/python-list
