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msarahan committed Feb 4, 2025
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Expand Up @@ -359,11 +359,11 @@ An example useful set of transforms:
![](/assets/images/telemetry/field_type_and_value_options.png)
On any chart, Grafana often guesses wrong on the data to display. On the right
side of the image above, chech the "Value options -> Show". This often defaults to "Calculate". It should generally be set to "All values" for our purposes.
side of the image above, check the "Value options -> Show". This often defaults to "Calculate". It should generally be set to "All values" for our purposes.
Similarly, the "Value options -> Fields" combobox often defaults to "Numeric
fields," but we usually want to point it to a specific field.
* After a group-by aggregation, Grafana can lose track of the duration in terms of nanoseconds. To compensate for this, add an "Add field from calculation" transformation. You can divide nanoseconds by 60E9 to obtain minutes. Keep in mind that this is adding a new column, not altering the old one. You'll need to select the new column in the "Value options -> Fields" combobox.
![](/assets/images/telemetry/calculate_field.png)
![](/assets/images/telemetry/calculate_field.png)

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