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Author	SHA1	Message	Date
Michael Droettboom	b5e60918af	gh-117549: Match declaration order for _Py_BackoffCounter initializer (#117551 ) Otherwise it might not compile with C++ (or certain C compilers/flags?).	2024-04-04 14:14:35 -07:00
Guido van Rossum	060a96f1a9	gh-116968: Reimplement Tier 2 counters (#117144 ) Introduce a unified 16-bit backoff counter type (``_Py_BackoffCounter``), shared between the Tier 1 adaptive specializer and the Tier 2 optimizer. The API used for adaptive specialization counters is changed but the behavior is (supposed to be) identical. The behavior of the Tier 2 counters is changed: - There are no longer dynamic thresholds (we never varied these). - All counters now use the same exponential backoff. - The counter for ``JUMP_BACKWARD`` starts counting down from 16. - The ``temperature`` in side exits starts counting down from 64.	2024-04-04 15:03:27 +00:00

Author

SHA1

Message

Date

Michael Droettboom

b5e60918af

gh-117549: Match declaration order for _Py_BackoffCounter initializer (#117551 )

Otherwise it might not compile with C++ (or certain C compilers/flags?).

2024-04-04 14:14:35 -07:00

Guido van Rossum

060a96f1a9

gh-116968: Reimplement Tier 2 counters (#117144 )

Introduce a unified 16-bit backoff counter type (``_Py_BackoffCounter``),
shared between the Tier 1 adaptive specializer and the Tier 2 optimizer. The
API used for adaptive specialization counters is changed but the behavior is
(supposed to be) identical.

The behavior of the Tier 2 counters is changed:
- There are no longer dynamic thresholds (we never varied these).
- All counters now use the same exponential backoff.
- The counter for ``JUMP_BACKWARD`` starts counting down from 16.
- The ``temperature`` in side exits starts counting down from 64.

2024-04-04 15:03:27 +00:00

2 commits