4 commits

Author	SHA1	Message	Date
Eric Snow	bc02eac9d2	bpo-46370: Move the static initializer for _PyRuntime to its own header file. (gh-30587) ... https://bugs.python.org/issue46370	2022-01-13 15:54:36 -07:00
Eric Snow	ed57b36c32	bpo-45953: Statically allocate the main interpreter (and initial thread state). (gh-29883) ... Previously, the main interpreter was allocated on the heap during runtime initialization. Here we instead embed it into _PyRuntimeState, which means it is statically allocated as part of the _PyRuntime global. The same goes for the initial thread state (of each interpreter, including the main one). Consequently there are fewer allocations during runtime/interpreter init, fewer possible failures, and better memory locality. FYI, this also helps efforts to consolidate globals, which in turns helps work on subinterpreter isolation. https://bugs.python.org/issue45953	2022-01-12 16:28:46 -07:00
Eric Snow	cf496d657a	bpo-45953: Statically allocate and initialize global bytes objects. (gh-30096) ... The empty bytes object (b'') and the 256 one-character bytes objects were allocated at runtime init. Now we statically allocate and initialize them. https://bugs.python.org/issue45953	2022-01-11 09:37:24 -07:00
Eric Snow	121f1f893a	bpo-45953: Statically initialize the small ints. (gh-30092) ... The array of small PyLong objects has been statically declared. Here I also statically initialize them. Consequently they are no longer initialized dynamically during runtime init. I've also moved them under a new sub-struct in _PyRuntimeState, in preparation for static allocation and initialization of other global objects. https://bugs.python.org/issue45953	2021-12-13 18:04:05 -07:00