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py/map.c: Add a cache of bytecode location to map position. #7680

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py/map.c: Add a cache of bytecode location to map position. #7680

wants to merge 7 commits into from

Commits on Sep 15, 2021

  1. py/vm.c: Add a fast path for LOAD_ATTR on instance types. 

    Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
    @jimmo
    jimmo committed Sep 15, 2021
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  2. py/map.c: Add a cache of (map+index) to map position. 

    This is an alternative to the bytecode caching (which is incompatible
with bytecode-in-ROM).

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
    @jimmo
    jimmo committed Sep 15, 2021
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  3. stm32: Enable LOAD_ATTR fast path. 

    Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
    @jimmo
    jimmo committed Sep 15, 2021
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  4. stm32: Enable map lookup caching on STM32 (>M0). 

    Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
    @jimmo
    jimmo committed Sep 15, 2021
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  5. unix: Enable LOAD_ATTR fast path. 

    Enabled for all variants except minimal.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
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  6. unix: Enable map lookup caching. 

    Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
    @jimmo
    jimmo committed Sep 15, 2021
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  7. top: Remove MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE. 

    This feature originally provided a significant performance boost for Unix,
but wasn't able to be enabled for MCU targets, and added significant extra
complexity to generating .mpy files. The equivalent performance gain is
now provided by MICROPY_OPT_LOAD_ATTR_FAST_PATH and
MICROPY_OPT_MAP_LOOKUP_CACHE.

See micropython#7680 for discussion.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
    @jimmo
    jimmo committed Sep 15, 2021
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