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[WIP] bpo-39465: Optimize _PyInterpreterState_GET()#20767

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[WIP] bpo-39465: Optimize _PyInterpreterState_GET() #20767

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@vstinnervstinner commented Jun 9, 2020•
edited by bedevere-bot
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  • Add _PyRuntimeState.gilstate.interp_current.

  • _PyThreadState_Swap() now sets interp_current.
    PyThreadState_Swap(NULL) sets interp_current to NULL.

  • Replace _PyThreadState_GET() with _PyInterpreterState_GET() in:

    • get_small_int()
    • gcmodule.c: add also get_gc_state() function
    • _PyTrash_deposit_object()
    • _PyTrash_destroy_chain()
    • warnings_get_state()
    • Py_GetRecursionLimit()

https://bugs.python.org/issue39465

@vstinnervstinner requested a review from pablogsal as a code ownerJune 9, 2020 21:58
@vstinnervstinner marked this pull request as draft June 9, 2020 23:46
@vstinnervstinner changed the title bpo-39465: Optimize _PyInterpreterState_GET()[WIP] bpo-39465: Optimize _PyInterpreterState_GET()Jun 9, 2020
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vstinner commented Jun 9, 2020

I'm still working on measuring the optimization performance. So far, the benefit is not obvious.

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bpo-39465: Optimize _PyInterpreterState_GET()
ee981f0
* Add _PyRuntimeState.gilstate.interp_current. * _PyThreadState_Swap() now sets interp_current. PyThreadState_Swap(NULL) sets interp_current to NULL.
@vstinnervstinner mentioned this pull request Jun 11, 2020
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@vstinnervstinner mentioned this pull request Jun 23, 2020
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@vstinnervstinner deleted the interp_current branch December 23, 2020 02:40
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@vstinner@the-knights-who-say-ni@bedevere-bot