PCP Vector

Query Formats

Time Series

Returns the data as time series. For metrics with instance domains, each instance is shown as a separate target (i.e., line in a line graph). If there are multiple queries defined, all values will be combined in the same graph.

Heatmap

Transforms the data for the heatmap panel. Instance names have to be in the following format: <lower_bound>-<upper_bound>, for example, 512-1023 (the bcc PMDA produces histograms in this format).

The following settings have to be set in the heatmap panel options:

Setting	Value
Format	Time Series Buckets
Bucket bound	Upper

Table

Transforms the data for the table panel. Two or more queries are required, and it will transform every metric into a column, and every instance into a row. The latest values of the currently selected timeframe will be displayed.

Legend Format Templating

The following variables can be used in the legend format box:

Variable	Description	Example
`$expr`	query expression	`rate(disk.dm.avactive)`
`$metric`	metric name	`disk.dev.read`
`$metric0`	last part of metric name	`read`
`$instance`	instance name	`sda`
`$some_label`	label value	anything