如何将Fio配置为更精确的IOP结果

Question

我正在使用fio测试我的服务器可以提供多少iops。我的conf文件说要写一个20 it的文件并读取它。THe结果显示为iops=27291。但测试只持续10秒。我想知道测试是否持续两个小时--例如，我会得到关于我的服务器IOP的更准确的结果。

# cat fio/fio-readwrite-20g.fio 
[global]
ioengine=posixaio
rw=readwrite
size=20g
directory=/home/ustore/fio
thread=10
write_bw_log=fio-test
write_iops_log=fio-test
write_lat_log=fio-test

[fio-readwrite-20g]

Answer 1

读取手册页会产生

   runtime=int
          Terminate processing after the specified number of seconds.

   time_based
          If  given, run for the specified runtime duration even if the files 
          are completely read or written. The same workload will
          be repeated as many times as runtime allows.