Discussion and work tracker for Faster CPython project.
New ideas should be created as new issues. It is ok if the idea is not fully formed -- we treat them as discussions to arrive at something actionable. (We had previously used discussions for this, but that is now deprecated).
The CPython issue tracker should be used for actual work-in-progress.
Some links to presentations and other preliminary documentation:
- Guido's slides at the 2021 Python Language Summit
- Mark's slides explaining Tiers of Execution
- PEP 659
| date | fork | ref | version | hash | vs. 3.10.4: | vs. 3.11.0: | vs. base: |
|---|---|---|---|---|---|---|---|
| 2023-03-25 | python | main | 3.12.0a6+ | 30a306c | 1.30x faster | 1.03x faster | |
| 2023-03-21 | iritkatriel | remove_JUM | 3.12.0a6+ | 12595f6 | 1.30x faster | 1.03x faster | 1.01x slower |
| 2023-03-21 | python | 7f760c2fca | 3.12.0a6+ | 7f760c2 | 1.31x faster | 1.04x faster | |
| 2022-10-24 | python | deaf509e8f | 3.11.0 | deaf509 | 1.25x faster | ||
| 2022-03-23 | python | 9d38120e33 | 3.10.4 | 9d38120 | 1.27x slower |
| date | fork | ref | version | hash | vs. 3.10.4: | vs. 3.11.0: | vs. base: |
|---|---|---|---|---|---|---|---|
| 2023-03-25 | python | main | 3.12.0a6+ | 30a306c | 1.03x faster | ||
| 2023-02-05 | python | ef7c2bfcf1 | 3.12.0a4+ | ef7c2bf | 1.04x faster | ||
| 2023-01-29 | python | c4170c36b0 | 3.12.0a4+ | c4170c3 | 1.04x faster | ||
| 2023-01-22 | python | d717be04dc | 3.12.0a4+ | d717be0 | 1.03x faster | ||
| 2023-01-16 | python | 7b14c2ef19 | 3.12.0a4+ | 7b14c2e | 1.03x faster | ||
| 2023-01-08 | python | e47b13934b | 3.12.0a3+ | e47b139 | 1.03x faster | ||
| 2023-01-01 | python | edfbf56f4c | 3.12.0a3+ | edfbf56 | 1.04x faster | ||
| 2022-12-26 | python | ad3c99e521 | 3.12.0a3+ | ad3c99e | 1.03x faster | ||
| 2022-12-19 | python | 702a5bc463 | 3.12.0a3+ | 702a5bc | 1.02x faster | ||
| 2022-12-11 | python | 70be5e42f6 | 3.12.0a3+ | 70be5e4 | 1.02x faster | ||
| 2022-12-05 | python | e3a3863cb9 | 3.12.0a2+ | e3a3863 | 1.02x faster | ||
| 2022-11-28 | python | 594de165bf | 3.12.0a2+ | 594de16 | 1.02x faster | ||
| 2022-11-21 | python | cdde29dde9 | 3.12.0a2+ | cdde29d | 1.02x faster | ||
| 2022-12-06 | python | a7a450f84a | 3.11.1 | a7a450f | 1.00x faster | ||
| 2022-10-24 | python | deaf509e8f | 3.11.0 | deaf509 | |||
| 2022-09-11 | python | ed7c3ff156 | 3.11.0rc2 | ed7c3ff | 1.01x slower | ||
| 2022-08-05 | python | 41cb07120b | 3.11.0rc1 | 41cb071 | 1.01x faster | ||
| 2022-07-25 | python | 0771d71eea | 3.11.0b5 | 0771d71 | 1.01x faster | ||
| 2022-07-11 | python | 5a7e1e0a92 | 3.11.0b4 | 5a7e1e0 | 1.00x faster | ||
| 2022-06-01 | python | eb0004c271 | 3.11.0b3 | eb0004c | 1.00x slower | ||
| 2022-05-30 | python | 72f00f420a | 3.11.0b2 | 72f00f4 | 1.00x faster | ||
| 2022-05-06 | python | 8d32a5c8c4 | 3.11.0b1 | 8d32a5c | 1.01x faster | ||
| 2022-04-05 | python | 2e49bd06c5 | 3.11.0a7 | 2e49bd0 | 1.02x slower | ||
| 2022-03-07 | python | 3ddfa55df4 | 3.11.0a6 | 3ddfa55 | 1.07x slower | ||
| 2022-02-03 | python | c4e4b91557 | 3.11.0a5 | c4e4b91 | 1.06x slower | ||
| 2022-01-13 | python | 9471106fd5 | 3.11.0a4 | 9471106 | 1.06x slower | ||
| 2021-12-08 | python | 2e91dba437 | 3.11.0a3 | 2e91dba | 1.06x slower | ||
| 2021-11-05 | python | e2b4e4bab9 | 3.11.0a2 | e2b4e4b | 1.08x slower | ||
| 2021-10-05 | python | 7c12e4835e | 3.11.0a1 | 7c12e48 | 1.11x slower | ||
| 2023-02-07 | python | aad5f6a891 | 3.10.10 | aad5f6a | 1.22x slower |
| date | fork | ref | version | hash | vs. 3.10.4: | vs. 3.11.0: | vs. base: |
|---|---|---|---|---|---|---|---|
| 2023-03-25 | python | main | 3.12.0a6+ | 30a306c | 1.21x faster | 1.09x faster | |
| 2023-03-07 | python | f9774e57d8 | 3.12.0a6 | f9774e5 | 1.20x faster | 1.09x faster | |
| 2023-02-07 | python | 3c67ec394f | 3.12.0a5 | 3c67ec3 | 1.22x faster | 1.10x faster | |
| 2023-01-10 | python | 3d5d3f7af6 | 3.12.0a4 | 3d5d3f7 | 1.23x faster | 1.11x faster | |
| 2022-12-06 | python | b6bd7ffcbc | 3.12.0a3 | b6bd7ff | 1.24x faster | 1.12x faster | |
| 2022-11-14 | python | 3b9d793efc | 3.12.0a2 | 3b9d793 | 1.18x faster | 1.07x faster | |
| 2022-10-25 | python | 4ae1a0ecaf | 3.12.0a1 | 4ae1a0e | 1.12x faster | 1.02x faster | |
| 2022-10-24 | python | deaf509e8f | 3.11.0 | deaf509 | 1.11x faster | ||
| 2023-02-07 | python | aad5f6a891 | 3.10.10 | aad5f6a | 1.01x slower | 1.12x slower | |
| 2022-03-23 | python | 9d38120e33 | 3.10.4 | 9d38120 | 1.11x slower | ||
| 2021-12-06 | python | 2cd268a3a9 | 3.10.1 | 2cd268a | 1.02x slower | 1.12x slower |
| date | fork | ref | version | hash | vs. 3.10.4: | vs. 3.11.0: | vs. base: |
|---|---|---|---|---|---|---|---|
| 2023-03-25 | python | main | 3.12.0a6+ | 30a306c | 1.19x faster * | 1.02x slower | |
| 2023-03-18 | python | main | 3.12.0a6+ | 3adb23a | 1.20x faster * | 1.02x slower | |
| 2023-03-11 | python | main | 3.12.0a6+ | bb396ee | 1.19x faster * | 1.02x slower | |
| 2023-03-06 | python | f533f216e6 | 3.12.0a5+ | f533f21 | 1.19x faster * | 1.01x slower | |
| 2023-02-26 | python | f3cb15c88a | 3.12.0a5+ | f3cb15c | 1.20x faster * | 1.01x slower | |
| 2023-02-19 | python | b1b375e267 | 3.12.0a5+ | b1b375e | 1.21x faster * | 1.00x faster | |
| 2023-02-13 | python | a1f08f5f19 | 3.12.0a5+ | a1f08f5 | 1.23x faster * | 1.02x faster | |
| 2023-02-05 | python | ef7c2bfcf1 | 3.12.0a4+ | ef7c2bf | 1.21x faster * | 1.01x faster | |
| 2023-01-29 | python | c4170c36b0 | 3.12.0a4+ | c4170c3 | 1.21x faster * | 1.01x faster | |
| 2023-01-22 | python | d717be04dc | 3.12.0a4+ | d717be0 | 1.21x faster * | 1.00x faster | |
| 2023-01-16 | python | 7b14c2ef19 | 3.12.0a4+ | 7b14c2e | 1.21x faster * | 1.00x faster | |
| 2023-01-08 | python | e47b13934b | 3.12.0a3+ | e47b139 | 1.22x faster * | 1.00x faster | |
| 2023-01-01 | python | edfbf56f4c | 3.12.0a3+ | edfbf56 | 1.21x faster * | 1.00x faster | |
| 2022-12-26 | python | ad3c99e521 | 3.12.0a3+ | ad3c99e | 1.21x faster * | 1.00x faster | |
| 2022-12-19 | python | 702a5bc463 | 3.12.0a3+ | 702a5bc | 1.23x faster * | 1.02x faster | |
| 2022-12-11 | python | 70be5e42f6 | 3.12.0a3+ | 70be5e4 | 1.24x faster * | 1.02x faster | |
| 2022-12-05 | python | e3a3863cb9 | 3.12.0a2+ | e3a3863 | 1.18x faster * | 1.04x slower | |
| 2022-11-28 | python | 594de165bf | 3.12.0a2+ | 594de16 | 1.19x faster * | 1.03x slower | |
| 2022-11-21 | python | cdde29dde9 | 3.12.0a2+ | cdde29d | 1.19x faster * | 1.03x slower | |
| 2023-02-07 | python | 878ead1ac1 | 3.11.2 | 878ead1 | 1.20x faster * | 1.00x slower | |
| 2022-12-06 | python | a7a450f84a | 3.11.1 | a7a450f | 1.22x faster * | 1.00x faster | |
| 2022-10-24 | python | deaf509e8f | 3.11.0 | deaf509 | 1.22x faster * | ||
| 2022-09-11 | python | ed7c3ff156 | 3.11.0rc2 | ed7c3ff | 1.22x faster * | 1.00x faster | |
| 2023-02-07 | python | aad5f6a891 | 3.10.10 | aad5f6a | 1.02x slower * | 1.22x slower | |
| 2022-03-23 | python | v3.10.4 | 3.10.4 | 9d38120 | 1.22x slower * |
There is also a complete list of published results (and legacy results).