mbutrovich commented on issue #20714: URL: https://github.com/apache/datafusion/issues/20714#issuecomment-4011846910
What granularity do you have in mind for memory accounting? I think for batches flowing through the system and large buffers that are allocated in operators like joins and aggregations that might spill I think the memory pool makes sense (and getting better visibility). But there are tons of heap allocated data structures that I don't think people really think about at all (hash tables, vectors, etc.) that can add up in operators. I'm all for more visibility on those sorts of things, but am terrified of the performance implications of centralizing those allocations. If I want visibility on those I reach for jemalloc. -- 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: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
