Commit Graph

57 Commits

Author SHA1 Message Date
Sam Gross e6d6d5dcc0
gh-114746: Avoid quadratic behavior in free-threaded GC (GH-114817)
The free-threaded build's GC implementation is non-generational, but was
scheduled as if it were collecting a young generation leading to
quadratic behavior. This increases the minimum threshold and scales it
to the number of live objects as we do for the old generation in the
default build.

Note that the scheduling is still not thread-safe without the GIL. Those
changes will come in later PRs.

A few tests, like "test_sneaky_frame_object" rely on prompt scheduling
of the GC. For now, to keep that test passing, we disable the scaled
threshold after calls like `gc.set_threshold(1, 0, 0)`.
2024-02-01 10:26:23 +01:00
Sam Gross b52fc70d1a
gh-112529: Implement GC for free-threaded builds (#114262)
* gh-112529: Implement GC for free-threaded builds

This implements a mark and sweep GC for the free-threaded builds of
CPython. The implementation relies on mimalloc to find GC tracked
objects (i.e., "containers").
2024-01-25 10:27:36 -08:00
Donghee Na 7fa511ba57
gh-111968: Use per-thread freelists for generator in free-threading (gh-114189) 2024-01-18 18:15:00 +00:00
Donghee Na 867f59f234
gh-111968: Use per-thread freelists for PyContext in free-threading (gh-114122) 2024-01-16 16:14:56 +00:00
Donghee Na 2e7577b622
gh-111968: Use per-thread freelists for tuple in free-threading (gh-113921) 2024-01-12 03:46:28 +09:00
Donghee Na f728f7242c
gh-111968: Use per-thread freelists for float in free-threading (gh-113886) 2024-01-10 15:47:13 +00:00
Donghee Na 57bdc6c30d
gh-111968: Introduce _PyFreeListState and _PyFreeListState_GET API (gh-113584) 2024-01-10 08:04:41 +09:00