'iowait' and 'steal' indicate specific idle/wait states, which shouldn't
be counted into CPU Utilisation. Also see
https://github.com/prometheus-operator/kube-prometheus/pull/796 and
https://github.com/kubernetes-monitoring/kubernetes-mixin/pull/667.
Per the iostat man page:
%idle
Show the percentage of time that the CPU or CPUs were idle and the
system did not have an outstanding disk I/O request.
%iowait
Show the percentage of time that the CPU or CPUs were idle during
which the system had an outstanding disk I/O request.
%steal
Show the percentage of time spent in involuntary wait by the
virtual CPU or CPUs while the hypervisor was servicing another
virtual processor.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
This should be the way forward when importing libraries in jsonnet. It's
closer to how Go imports look and makes it more obvious where packages
live.
This is not breaking anything, as the old imports were already symlinks
to the now directly used directories.
Signed-off-by: Matthias Loibl <mail@matthiasloibl.com>
- Use a stacked graph instead of a gauge as development over time is
especially useful for disk space usage.
- By only taking one metric per device into account, we avoid
double-counting for devices that are mounted multiple times.
Signed-off-by: beorn7 <beorn@grafana.com>
* node-mixin: Improve nodes dashboard
- Use stacking where it makes sense.
- Normalize idle CPU so that stacking is more meaningful.
- Consistently fill where stacking is used but don't fill where not.
- Fix y axis max value for Idle CPU panel.
- Fix y axis min value for memory usage panel.
- Use `$__interval` for range where applicable (and set min step
to 1m).
- Make the right Y axis for disk I/O actually work.
This is just an incremental improvements. It doesn't touch the more
involved TODOs.
Signed-off-by: beorn7 <beorn@grafana.com>
This will cause a query to be valid even if values of selector are
empty.
Additionally fixing query responsible for disk space usage.
Signed-off-by: paulfantom <pawel@krupa.net.pl>
The only deviation that happened so far is to use format="percentunit"
in a Grafana gauge. This change wasn't even properly used in this repo
so far, so I opted to stick with "upstream" for now. If changes are
really needed, we can try to change upstream first.
Another change was done in parallal here and upstream, but it was
"more correct" in upstream. (Change datasource to $datasource
variable, only partially applied here.) Which is another point for
using the upstream and not copy it here.
Signed-off-by: beorn7 <beorn@grafana.com>
