iostat 使用说明

LINUX

[oracle@perass back]$ iostat -m 1 10

Linux 2.6.18-194.el5 (perass) 	03/01/2014



avg-cpu:  %user   %nice %system %iowait  %steal   %idle

           0.04    0.00    1.21   38.28    0.00   60.47



Device:            tps    MB_read/s    MB_wrtn/s    MB_read    MB_wrtn

sda             174.00         0.06        34.43          0         34

sda1              0.00         0.00         0.00          0          0

sda2              0.00         0.00         0.00          0          0

sda3            174.00         0.06        34.43          0         34



-m     Display statistics in megabytes per second instead of blocks or kilobytes per second.  Data  dis-

              played are valid only with kernels 2.4 and newer

可以看到写入的速度为34M/s



AIX

$ iostat 1 10



System configuration: lcpu=4 drives=6 paths=14 vdisks=0



tty:      tin         tout    avg-cpu: % user % sys % idle % iowait

          0.0         59.0                1.1   0.5   98.3      0.0



Disks:        % tm_act     Kbps      tps    Kb_read   Kb_wrtn

hdisk1           0.0       0.0       0.0          0         0

hdisk0           0.0       0.0       0.0          0         0



Kb_read

            The total number of KBs read.

Kb_wrtn

            The total number of KBs written.