gh-148323: release the GIL in bytes.join when operands are immutable
#250733
| Job | Run time |
|---|---|
| 6s | |
| 3s | |
| 9s |
bytes.join when operands are immutable
#250733
| Job | Run time |
|---|---|
| 6s | |
| 3s | |
| 9s |