[3.12] GH-121439: Allow PyTupleObjects with an ob_size of 20 in the free_list to be reused (gh-121428) (#121566)

miss-islington · satori1995 · web-flow · commit ac4276cc7af0 · 2024-07-10T08:06:41.000Z
GH-121439: Allow PyTupleObjects with an ob_size of 20 in the free_list to be reused (gh-121428) (cherry picked from commit 9585a1a) Co-authored-by: satori1995 <132636720+satori1995@users.noreply.github.com>
diff --git a/Misc/NEWS.d/next/Core and Builtins/2024-07-08-02-24-55.gh-issue-121439.jDHod3.rst b/Misc/NEWS.d/next/Core and Builtins/2024-07-08-02-24-55.gh-issue-121439.jDHod3.rst
@@ -0,0 +1 @@
+Allow tuples of length 20 in the freelist to be reused.
diff --git a/Objects/tupleobject.c b/Objects/tupleobject.c
@@ -1139,7 +1139,7 @@ maybe_freelist_pop(Py_ssize_t size)
         return NULL;
     }
     assert(size > 0);
-    if (size < PyTuple_MAXSAVESIZE) {
+    if (size <= PyTuple_MAXSAVESIZE) {
         Py_ssize_t index = size - 1;
         PyTupleObject *op = STATE.free_list[index];
         if (op != NULL) {

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1 @@`
	`1`	`+Allow tuples of length 20 in the freelist to be reused.`
Original file line number	Diff line number	Diff line change
`@@ -1139,7 +1139,7 @@ maybe_freelist_pop(Py_ssize_t size)`
`1139`	`1139`	`return NULL;`
`1140`	`1140`	`}`
`1141`	`1141`	`assert(size > 0);`
`1142`		`- if (size < PyTuple_MAXSAVESIZE) {`
	`1142`	`+ if (size <= PyTuple_MAXSAVESIZE) {`
`1143`	`1143`	`Py_ssize_t index = size - 1;`
`1144`	`1144`	`PyTupleObject *op = STATE.free_list[index];`
`1145`	`1145`	`if (op != NULL) {`