[issue45527] Reduce overhead for cache hits in specialized opcodes.

Ken Jin report at bugs.python.org
Wed Oct 20 06:43:04 EDT 2021


Ken Jin <kenjin4096 at gmail.com> added the comment:

Strong +1 from me.

Not to mention some instructions don't even need to read the _PyAdaptiveEntry apart from recording cache hits, so that's one more dependent load and store too.

Extremely cheap instructions off the top of my head:
- BINARY_SUBSCR
- LOAD_METHOD
- LOAD_GLOBAL
- LOAD_ATTR

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<https://bugs.python.org/issue45527>
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