fio 即 Flexible io tester,基于 Linux 实例的块卷性能测试。 https://docs.oracle.com/en-us/iaas/Content/Block/References/samplefiocommandslinux.htm 测试命令如下: fio -filename=/tmp/test.file \ -direct=1 \ -iodepth 1 \ -thread -rw=randrw \ -rwmixread=70 \ -ioengine=psync \ -bs=4k \ …