我们去查看iozone的man手册可以看到，这一段
-+m filename Used to specify a filename that will be used to specify the clients in a distributed measurement. The file contains one line for each client. The fields are space delimited. Field 1 is the client name. Field 2 is the working directory, on the client, where Iozone will run. Field 3 is the path to the executable Iozone on the client.
由上述信息可知，配置文件有三行信息，第一行是机器名或者IP；第二行是挂载目录；第三行则是iozone的执行路径
[Clinet] [mount_directory] /usr/bin/iozone
而且在测试开始前，客户端之间要配置免密登录，配置完免密登录后，我们可以创建一个配置文件host.cfg
storage01 /mnt/ /opt/iozone storage02 /mnt/ /opt/iozone storage03 /mnt/ /opt/iozone storage04 /mnt/ /opt/iozone
配置完，就可以开始测试了
exportRSH=ssh
/opt/iozone -ceIT-i0-i1-i2-+n -r 4k -s1g-+m host.cfg -t4-Rb /root/4k_distributed_performance_test.xls
执行完应该会输出下述信息
root@storage01:~# /opt/iozone -ceIT -i0 -i1 -i2 -+n -r 4k -s1g -+m host.cfh -t4 -Rb /root/4k_distributed_performance_test.xls Iozone: Performance Test of File I/O Version $Revision: 3.492 $ Compiled for64 bit mode. Build: linux-AMD64 Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Collins Al Slater, Scott Rhine, Mike Wisner, Ken Goss Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR, Randy Dunlap, Mark Montague, Dan Million, Gavin Brebner, Jean-Marc Zucconi, Jeff Blomberg, Benny Halevy, Dave Boone, Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root, Fabrice Bacchella, Zhenghua Xue, Qin Li, Darren Sawyer, Vangel Bojaxhi, Ben England, Vikentsi Lapa, Alexey Skidanov, Sudhir Kumar. Run began: Fri Oct 2111:39:44 2022 Include close inwrite timing Include fsync inwrite timing O_DIRECT feature enabled No retest option selected Record Size 4 kB File size set to 1048576 kB Network distribution mode enabled. Excel chart generation enabled Command line used: /opt/iozone -ceIT-i0-i1-i2-+n -r 4k -s1g-+m host.cfh -t4-Rb /root/4k_distributed_performance_test.xls Output is in kBytes/sec Time Resolution =0.000001 seconds. Processor cache size set to 1024 kBytes. Processor cache line size set to 32 bytes. File stride size set to 17 * record size. Throughput test with 4 threads Each thread writes a 1048576 kByte file in4 kByte records
