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GeezerVison is showing github.com — _decimal: Store a module state in objects for faster access · Issue #124688 · python/cpython

_decimal: Store a module state in objects for faster access #124688

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_decimal: Store a module state in objects for faster access#124688
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extension-modulesC modules in the Modules dirC modules in the Modules dirtype-featureA feature request or enhancementA feature request or enhancement

Description

@neonene
neonene
opened on Sep 27, 2024
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Feature or enhancement

Proposal:

It is known to be efficient to get a module state from an object directly rather than from a type. The same can go for the _decimal's context object (i.e. extending the PyDecContextObject struct).

Extending PyDecObject, which made no perf difference for me, seems to be a waste of memory with many objects.

cc @vstinner @erlend-aasland @mdboom

Links to previous discussion of this feature:

  • PyType_GetModuleByDef is really slow. #119663

Linked PRs

  • gh-124688: _decimal: Get a module state from ctx objects for performance #124691

Activity

  1. neonene
    added
    type-featureA feature request or enhancementA feature request or enhancement
    on Sep 27, 2024
  2. vstinner
    added a commit that references this issue on Sep 28, 2024

    gh-124688: _decimal: Get module state from ctx for performance (#124691)

    dc12237
  3. picnixz
    added
    extension-modulesC modules in the Modules dirC modules in the Modules dir
    on Sep 28, 2024

  4. picnixz commented on Sep 28, 2024

    @picnixz
    picnixz
    on Sep 28, 2024
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    Closing since completed in dc12237.

  5. picnixz
    closed this as completedon Sep 28, 2024
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