pitrou commented on pull request #11588: URL: https://github.com/apache/arrow/pull/11588#issuecomment-958820921
Note however that the entire point of `MemoryAdviseWillNeed` is to induce prefetching _before_ actually reading it (to hide read latencies). If the OS doesn't actually prefetch anything, then the call is useless. It's not obvious how `POSIX_MADV_RANDOM` is used by the Linux kernel here. -- 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]
