Hi all, We are considering to use libaio in our project as an optional alternative to Java NIO. Our goal is to improve performance while maintaining durability. We have performed tests on different storage devices. Files were opened with flags: O_WRONLY | O_DIRECT | O_DSYNC. However, on some SSD devices O_DSYNC causes io_submit() to block until operation is finished, which is not acceptable in our case. The question is: do libaio writes with only WRONLY | O_DIRECT flags provide any durability guarantees? Can I be sure that after io_getevents() returns an event indicating successful write the data is actually flushed to persistent storage? Thanks! -- Best regards, Ilya -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
