Open the Grafana time setting dialog by clicking on the actual time settings
Time setting for analysis mode
In analysis mode a specific time frame shall be displayed in the panels
Enter the time range inside the From and To field.
After closing all panels will be updated with the new time settings
Check the quick ranges whether they are set to required time settings.
You can also use a quick range and do a zoom inside the panels with the mouse zoom rectangle
Look here for more details:
http://docs.grafana.org/reference/timerange/
Time setting for dashboard node
For dashboard mode, a relative time frame has to be entered into the From and To fields.
The easiest way is to use the Quick ranges (Last 3 hours, Last 6 hours, ...)
Enter a refresh interval to 5m or 1m: The most appropriate interval is 5m
Setting the right data interval
The data interval determines the data width of the individual points.
It may happen that the graphic becomes staircase if the interval width is not set correctly.
In most cases, you should use the auto setting so that the exact interval is selected.
Rule of thumb:
To reduce the computation time, a large interval should be set for long periods of time.
Too small intervals can bother the BVQ server so much that it seems frozen