pitrou commented on issue #46929: URL: https://github.com/apache/arrow/issues/46929#issuecomment-3048164711
> We observed a significant increase in memory consumption when upgrading from `pyarrow` 17.0.0 to later versions, particularly during calls to `.to_pandas()`. For example, comparing memory usage between `pyarrow` 20.0.0 and 17.0.0: PyArrow 20.0.0 now uses mimalloc by default, but you can [switch back to jemalloc](https://arrow.apache.org/docs/cpp/env_vars.html#envvar-ARROW_DEFAULT_MEMORY_POOL) if you want. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: github-unsubscr...@arrow.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org