>Microsoft recently ported SQL Server to Linux so not sure what combination of techniques they are doing on there Open options: int f = open("your fil

>Microsoft recently ported SQL Server to Linux so not sure what combination of techniques they are doing on there Open options: int f = open("your file", O_DIRECT|O_DSYNC|O_RDWR); O_DIRECT signals that a file descriptor should by-pass kernel level caching and write directly to the device. O_SYNC signals that a file descriptor calls should not return until all data+metadata has been synced with disk. O_DSYNC does the same as O_SYNC but doesn't force meta-data synchronicity before the block ends. Related Stack Overflow https://stackoverflow.com/questions/5055859/how-are-the-o-sync-and-o-direct-flags-in-open2-different-alike https://stackoverflow.com/questions/5055859/how-are-the-o-sy... Related LWN article https://lwn.net/Articles/457667/ https://lwn.net/Articles/457667/