Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

gh-115999: Use light-weight lock for UNPACK_SEQUENCE_LIST #127514

Merged
merged 2 commits into from
Dec 2, 2024
Merged

gh-115999: Use light-weight lock for UNPACK_SEQUENCE_LIST #127514

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
19b71a6
gh-115999: Use light-weight lock for UNPACK_SEQUENCE_LIST
corona10 Dec 2, 2024
9c35049
Address code review
corona10 Dec 2, 2024
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion Include/internal/pycore_opcode_metadata.h
View file
Open in desktop

Some generated files are not rendered by default. Learn more about how customized files appear on GitHub.

2 changes: 1 addition & 1 deletion Include/internal/pycore_uop_metadata.h
View file
Open in desktop

Some generated files are not rendered by default. Learn more about how customized files appear on GitHub.

13 changes: 3 additions & 10 deletions Python/bytecodes.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1438,24 +1438,17 @@ dummy_func(
inst(UNPACK_SEQUENCE_LIST, (unused/1, seq -- values[oparg])) {
PyObject *seq_o = PyStackRef_AsPyObjectBorrow(seq);
DEOPT_IF(!PyList_CheckExact(seq_o));
#ifdef Py_GIL_DISABLED
PyCriticalSection cs;
PyCriticalSection_Begin(&cs, seq_o);
#endif
DEOPT_IF(!LOCK_OBJECT(seq_o));
if (PyList_GET_SIZE(seq_o) != oparg) {
#ifdef Py_GIL_DISABLED
PyCriticalSection_End(&cs);
#endif
UNLOCK_OBJECT(seq_o);
DEOPT_IF(true);
}
STAT_INC(UNPACK_SEQUENCE, hit);
PyObject **items = _PyList_ITEMS(seq_o);
for (int i = oparg; --i >= 0; ) {
*values++ = PyStackRef_FromPyObjectNew(items[i]);
}
#ifdef Py_GIL_DISABLED
PyCriticalSection_End(&cs);
#endif
UNLOCK_OBJECT(seq_o);
DECREF_INPUTS();
}

Expand Down
22 changes: 6 additions & 16 deletions Python/executor_cases.c.h
View file
Open in desktop

Some generated files are not rendered by default. Learn more about how customized files appear on GitHub.

19 changes: 3 additions & 16 deletions Python/generated_cases.c.h
View file
Open in desktop

Some generated files are not rendered by default. Learn more about how customized files appear on GitHub.

Loading