pyarrow.MemoryPool¶

class pyarrow.MemoryPool¶

Bases: pyarrow.lib._Weakrefable

Base class for memory allocation.

Besides tracking its number of allocated bytes, a memory pool also takes care of the required 64-byte alignment for Arrow data.

__init__(*args, **kwargs)¶: Initialize self. See help(type(self)) for accurate signature.

Methods

`__init__`(args, *kwargs)	Initialize self.
`bytes_allocated`(self)	Return the number of bytes that are currently allocated from this memory pool.
`max_memory`(self)	Return the peak memory allocation in this memory pool.

Attributes

The name of the backend used by this MemoryPool (e.g.

backend_name¶: The name of the backend used by this MemoryPool (e.g. “jemalloc”).

bytes_allocated(self)¶: Return the number of bytes that are currently allocated from this memory pool.

max_memory(self)¶

Return the peak memory allocation in this memory pool. This can be an approximate number in multi-threaded applications.

None is returned if the pool implementation doesn’t know how to compute this number.