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| author | Eric Snow <ericsnowcurrently@gmail.com> | 2023-04-24 17:23:57 -0600 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-04-24 17:23:57 -0600 |
| commit | df3173d28ef25a0f97d2cca8cf4e64e062a08d06 (patch) | |
| tree | f2b6f378f81ceee48a9e710154b9d6c4b0f959a2 /Python/sysmodule.c | |
| parent | 01be52e42eac468b6511b56ee60cd1b99baf3848 (diff) | |
| download | cpython-git-df3173d28ef25a0f97d2cca8cf4e64e062a08d06.tar.gz | |
gh-101659: Isolate "obmalloc" State to Each Interpreter (gh-101660)
This is strictly about moving the "obmalloc" runtime state from
`_PyRuntimeState` to `PyInterpreterState`. Doing so improves isolation
between interpreters, specifically most of the memory (incl. objects)
allocated for each interpreter's use. This is important for a
per-interpreter GIL, but such isolation is valuable even without it.
FWIW, a per-interpreter obmalloc is the proverbial
canary-in-the-coalmine when it comes to the isolation of objects between
interpreters. Any object that leaks (unintentionally) to another
interpreter is highly likely to cause a crash (on debug builds at
least). That's a useful thing to know, relative to interpreter
isolation.
Diffstat (limited to 'Python/sysmodule.c')
| -rw-r--r-- | Python/sysmodule.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/Python/sysmodule.c b/Python/sysmodule.c index 1e42e8dfce..58ed48859b 100644 --- a/Python/sysmodule.c +++ b/Python/sysmodule.c @@ -1871,7 +1871,9 @@ static Py_ssize_t sys_getallocatedblocks_impl(PyObject *module) /*[clinic end generated code: output=f0c4e873f0b6dcf7 input=dab13ee346a0673e]*/ { - return _Py_GetAllocatedBlocks(); + // It might make sense to return the count + // for just the current interpreter. + return _Py_GetGlobalAllocatedBlocks(); } /*[clinic input] |