fio 测试 --- 详细参数说明

Linux 下安装fio 后，Linux 下直接可直接查看man fio, 有参数详细说明。

write_bw_log=str
              If given, write a bandwidth log of the jobs in this job file. Can be used to store data of the bandwidth of  the  jobs  in
              their  lifetime.  The  included  fio_generate_plots  script  uses  gnuplot  to turn these text files into nice graphs. See
              write_lat_log for behaviour of given filename. For this option, the postfix is _bw.log.


       write_lat_log=str
              Same as write_bw_log, but writes I/O completion latencies.  If no filename is given with this option, the default filename
              of "jobname_type.log" is used. Even if the filename is given, fio will still append the type of log.


       write_iops_log=str
              Same  as  write_bw_log,  but  writes  IOPS.  If  no  filename  is  given  with  this option, the default filename of "job?
              name_type.log" is used. Even if the filename is given, fio will still append the type of log.