27 Feb
2019
27 Feb
'19
9:21 a.m.
Note that if you mmap() a file, it has no direct impact on swap usage. (Because the actual file is effectively the backing store.) This might be a helpful read: https://stackoverflow.com/questions/43541420/when-and-how-is-mmaped-memory-s... Hope that helps! John On Wed, 2019/02/27 11:47:59AM -0500, Gary via talk <talk@gtalug.org> wrote: | Thank you. My intent (haven't done it yet) is to use mmap() in c++ for a | very large file (2 gigs). I suspect that the virtual memory technology in | x86 would simply page in/out file data to/from ram using the least recently | used algorithm. Would the swap partition size be material here or am I | worrying unnecessarily. | /gary