Vmstat

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System Monitoring with vmstat

The following results were obtained based on data collected using vmstat, a tool that reports a system's virtual memory statistics.

Monitoring the system

In order to reproduce the shown output, one should:

  • Fetch upstream code from the core-image-minimal recipes
$ git clone git://git.yoctoproject.org/poky
$ cd poky/
$ source oe-init-build-env
$ echo -e 'DL_DIR = "/home/user/poky/downloads"' > conf/auto.conf
$ bitbake core-image-minimal -c fetchall


  • Start vmstat in another terminal (2 sec interval)
$ vmstat 2 > vmstat-output.raw
  • In the initial terminal, launch bitbake, making sure no network activity will be done

echo -e 'BB_NO_NETWORK = "1"' >> conf/auto.conf

$ bitbake core-image-minimal
  • Once bitbake finishes, Ctrl+D the vmstat command

Procs

Vmstat-procs-minimal.png

Memory

Vmstat-memory-minimal.png

IO

Vmstat-io-minimal.png

System

Vmstat-system-minimal.png

CPU

Vmstat-cpu-minimal.png