I wish people would stop bringing up mmap as a performance panacea. It's frequently worse than using IO system calls due to the need to actually take a page fau

I wish people would stop bringing up mmap as a performance panacea. It's frequently worse than using IO system calls due to the need to actually take a page fault and map the file's backing page into the faulting processes' address space. mmap is not a magical fast path. It certainly shouldn't be your fault IO strategy.