alt Hacker Newsmmap is also relatively slow (compared to modern solutions, io_uring and friends), and immensely painful for error handling.
It's simple, I'll give it that.
mmap is also relatively slow (compared to modern solutions, io_uring and friends), and immensely painful for error handling.
It's simple, I'll give it that.
Page faults are slower than being deliberate about your I/O but mapped memory is no faster or slower than "normal" memory, its the same mechanism.