Hi, > Reads can still be served from the page cache without doing physical > IO. You are right. for ext4, with more clients(32->80), the Throughput of ext4 is over 6Gb/s too. the 'Throughput' of dbench include not only 'write', but also include 'read' in dbench too. And 'max_latency' include not only 'write', but also include others too. 1)dbench result example1 WriteX 365460 4.474 2279.808 ... Throughput 385.697 MB/sec (sync open) 32 clients 32 procs max_latency=2279.818 ms 2)dbench result example2 WriteX 741543 3.521 16.380 ... Throughput 779.972 MB/sec (sync open) 48 clients 48 procs max_latency=11.246 ms Thanks a lot. Best Regards Wang Yugui (wangyugui@xxxxxxxxxxxx) 2020/10/15
