When the PDIMMs were used with an appropriate file system + kernel, it was pretty cool. NTFS + DAX + kernel support yielded a file system where mmap’ing didn’t page fault. No page faults because the file content is already there, instantly.
So if you had mmap heavy read/write workloads… you could do some pretty cool stuff.
So if you had mmap heavy read/write workloads… you could do some pretty cool stuff.