On Tue, Oct 13, 2020 at 10:11:13PM +0800, Wang Yugui wrote: > Hi, > > dbench throughput on xfs over hardware limit(6Gb/s=750MB/s). > > Is this a bug or some feature of performance optimization? dbench measures page cache throughput, not physical IO throughput. This sort of results is expected. Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx