I can't imagine this is not possible.... but I can't figure out where to enable it.
can't system monitor (
gnome-system-monitor) display disk io?
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You can try nmon
sudo apt-get install nmon
Output Like below:
Press d = Disk Press c = CPU Press r = RAM Press q to exit
You can also give try with:
Output like below:
Linux 3.16.0-30-generic (client01) 03/01/2016 _i686_ (2 CPU) avg-cpu: %user %nice %system %iowait %steal %idle 39.73 24.58 2.96 0.26 0.00 32.48 Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn sda 3.32 57.31 40.05 119879872 83767716 sdb 1.45 15.02 22.60 31424408 47273012
There are lot of tools to monitor system stats. I have written a script for system profiling. You can use this as well more over.
You can use
iostat. They will give you a better representation of system utilization.
sysstat package will give you access to other monitoring utilities.
# apt-get install iotop sysstat # iostat -dx Linux 4.4.0-64-generic (ip-172-16-27-59) 03/10/2017 _x86_64_ (4 CPU) Device: rrqm/ swrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await r_await w_await svctm %util xvda 0.00 4.36 0.83 2.77 15.64 56.59 40.14 0.01 2.18 0.82 2.59 0.63 0.23 xvdb 0.00 0.09 0.01 0.11 0.06 7.21 120.59 0.00 1.29 0.85 1.35 0.34 0.00
r/s The number (after merges) of read requests completed per second for the device. w/s The number (after merges) of write requests completed per second for the device. rsec/s (rkB/s, rMB/s) The number of sectors (kilobytes, megabytes) read from the device per second. wsec/s (wkB/s, wMB/s) The number of sectors (kilobytes, megabytes) written to the device per second.
These values give you exact idea about Disk IO.