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GeezerVison is showing github.com — Too many misses in BINARY_SUBSCR_LIST_INT · Issue #100188 · python/cpython

Too many misses in BINARY_SUBSCR_LIST_INT #100188

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Too many misses in BINARY_SUBSCR_LIST_INT#100188
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@sweeneyde
sweeneyde
opened on Dec 12, 2022
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The expression my_list[-1] gets specialized to BINARY_SUBSCR_LIST_INT every time, then it gets deoptimized every time

This leads to 31%ish of BINARY_SUBSCR_LIST_INT executions being misses (on some programs anyway). Edit: this stat was probably not accurate.

Should be an easy fix.

Linked PRs

  • gh-100188: Reduce misses in BINARY_SUBSCR_LIST_INT #100189

Activity

  1. sweeneyde
    added
    type-featureA feature request or enhancementA feature request or enhancement
    on Dec 12, 2022
  2. sweeneyde
    added a commit that references this issue on Dec 20, 2022

    gh-100188: Reduce misses in BINARY_SUBSCR_(LIST/TUPLE)_INT (#100189)

    c18d831
  3. kumaraditya303
    closed this as completedon Dec 21, 2022

  4. hauntsaninja commented on Dec 21, 2022

    @hauntsaninja
    hauntsaninja
    on Dec 21, 2022
    Contributor
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    Thanks for finding and fixing!

  5. hauntsaninja
    closed this as completedon Dec 21, 2022
  6. iritkatriel
    added a commit that references this issue on Dec 28, 2022

    Merged main into regmachine branch (#50)

    fdc73cb
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