Hello, Sorry about the delay. On Tue, Dec 13, 2022 at 11:55:16AM +0800, hanjinke wrote: > If sq->queue[] were only classfied SYNC and ASYNC, some things may become a > little difficult to handle。As we put sync write and read together into SYNC > queue, the two may influence each other. > Whit wbps=1M and rbps=100M configured, sync io likely be throtled while read > ios after it may can be dispatched within the limit. In that case, > maybe we should scan the whole SYNC queue to check read io. Ah, yeah, you're right. The configuration per-rw so we have to split within. Will review your latest patch. Thanks. -- tejun