asynchronous IO io_submit latency in Ubuntu Linux
问题 I am looking for advice on how to get efficient and high performance asynchronous IO working for my application that runs on Ubuntu Linux 14.04. My app processes transactions and creates a file on disk/flash. As the app is progressing through transactions additional blocks are created that must be appended to the file on disk/flash. The app needs also to frequently read blocks of this file as it is processing new transactions. Each transaction might need to read a different block from this