DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=14.04
DISTRIB_CODENAME=trusty
DISTRIB_DESCRIPTION="Ubuntu 14.04.3 LTS"
NAME="Ubuntu"
VERSION="14.04.3 LTS, Trusty Tahr"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 14.04.3 LTS"
VERSION_ID="14.04"
HOME_URL="http://www.ubuntu.com/"
SUPPORT_URL="http://help.ubuntu.com/"
BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"
No LSB modules are available.
Linux version 3.4.103 (bananapi@lemaker) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #4 SMP PREEMPT Thu Dec 18 12:55:58 CST 2014
armv7l

# dstat -s --top-io-adv --top-bio-adv
----swap--- -------most-expensive-i/o-process------- ----most-expensive-block-i/o-process----
 used  free|process               pid  read write cpu|process               pid  read write cpu
   0  4000M|chrome                3388  152k  97k0.6%|chrome                3388  155k  95k0.6%
   0  4000M|gnome-terminal-server 4635  586B  24k0.1%|chrome                3388    0   12k0.1%