Although this is true on Linux, it's worth noting that this behavior doesn't match the specified behavior of posix_madvise.[1] It was also a subject of Bryan C

Although this is true on Linux, it's worth noting that this behavior doesn't match the specified behavior of posix_madvise.[1] It was also a subject of Bryan Cantril's hilarious "A crime against common sense" Surge 2015 talk (at ~1:06:50).[2] [1]: https://pubs.opengroup.org/onlinepubs/9699919799/functions/posix_madvise.html https://pubs.opengroup.org/onlinepubs/9699919799/functions/p... [2]: https://youtu.be/bg6-LVCHmGM?t=3518 https://youtu.be/bg6-LVCHmGM?t=3518