bpo-37537: Compute allocated blocks in _Py_GetAllocatedBlocks() #14680
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Keeping an account of allocated blocks slows down _PyObject_Malloc() and _PyObject_Free() by a measureable amount. Have _Py_GetAllocatedBlocks() iterate over the arenas to sum up the allocated blocks for pymalloc.
methane
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Jul 10, 2019
tim-one
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Jul 10, 2019
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Surprising! Good catch. I doubt this function is ever used outside of memory-leak detectors, so its speed is hard to care about. I'm just asking for a change to round the arena base address up to the first pool's actual address (which probably isn't really needed on Linux or Windows, but will be needed if pool sizes ever increase beyond the OS page size).
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tim-one
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Jul 10, 2019
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@nascheme: Please replace |
lisroach
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Sep 10, 2019
…on#14680) Keeping an account of allocated blocks slows down _PyObject_Malloc() and _PyObject_Free() by a measureable amount. Have _Py_GetAllocatedBlocks() iterate over the arenas to sum up the allocated blocks for pymalloc.
DinoV
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Jan 14, 2020
…on#14680) Keeping an account of allocated blocks slows down _PyObject_Malloc() and _PyObject_Free() by a measureable amount. Have _Py_GetAllocatedBlocks() iterate over the arenas to sum up the allocated blocks for pymalloc.
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Keeping an account of allocated blocks slows down _PyObject_Malloc() and _PyObject_Free() by a measureable amount. Have _Py_GetAllocatedBlocks() iterate over the arenas to sum up the allocated blocks for pymalloc.
https://bugs.python.org/issue37537