CFQ - “In case of asynchronous requests, all the requests from all the processes are batched together according to their process's I/O priority”
Clash Royale CLAN TAG #URR8PPP 0 I think the following statements about CFQ contradict each other: "In case of asynchronous requests, all the requests from all the processes are batched together according to their process's I/O priority ." The only requests that the IO scheduler considers to be asynchronous are regular "buffered" writes. " ionice does nothing to de-prioritize asynchronous write IO." Which statements are incorrect? Or if all of them are correct, why do they not contradict each other? linux-kernel io share | improve this question edited Feb 24 at 14:56 sourcejedi asked Feb 13 at 13:48 sourcejedi sourcejedi 24.8k 4 41 107 add a comment | 0 I think the following statements about CFQ contradict each other: "In case of asynchronous requests, all the requests from all the processes are batched together according to their process's I/O priority ."...