Hello ,
You can use sar command.
in Ubuntu you can install it with
and enable data collecting
start service with
To see I/O latency type command as
that means it will give two responses with 1 sec as interval.
Example :
Hope that helps.
You can use sar command.
in Ubuntu you can install it with
sudo apt-get install systat
and enable data collecting
sed -i 's/ENABLED="false"/ENABLED="true"/' /etc/default/sysstat
start service with
/etc/init.d/sysstat start
To see I/O latency type command as
sar 1 1
that means it will give two responses with 1 sec as interval.
Example :
root@virt01:~# sar 1 3
Linux 3.19.0-42-generic (virt01.ubuntu.com) 13/02/16 _x86_64_ (1 CPU)
12:26:23 CPU %user %nice %system %iowait %steal %idle
12:26:24 all 0.00 0.00 0.00 0.00 0.00 100.00
12:26:25 all 0.00 0.00 0.99 0.00 0.00 99.01
12:26:26 all 2.02 0.00 0.00 0.00 0.00 97.98
Average: all 0.67 0.00 0.33 0.00 0.00 99.00
root@virt01:~#
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