command_runner/commands/top/tui/top_series
library
Constants
-
maxSparklineBuckets
→ const int
-
The most columns a sparkline is drawn with: one per sample of the metrics
window, which the server samples once a minute over an hour.
Functions
-
bucketSamples(List<MetricSample> samples, {required DateTime from, required DateTime to, required int buckets})
→ List<double?>
-
Averages
samples into buckets equal time slots between from and
to. A slot without a sample is null, so a gap stays a gap.
-
formatCores(double cores)
→ String
-
Formats a CPU usage in cores, for example
0.38 cores.
-
formatRate(double perSecond)
→ String
-
Formats a request rate, for example
12.4 req/s.
-
formatShare(double part, double total)
→ String
-
Formats
part as a percentage of total, for example 0.4%.
-
latestValue(List<double?> values)
→ double?
-
The most recent value of
values, or null if there is none.
-
sparkline(List<double?> values)
→ String
-
Draws
values as one block character per value, scaled from zero to the
highest value. A null value is drawn as a space.
-
sumBuckets(List<List<double?>> series)
→ List<double?>
-
Adds up
series slot by slot. A slot is null when no series has a value
in it.
-
totalSeries(List<List<MetricSample>> series, {required DateTime from, required DateTime to, int buckets = maxSparklineBuckets})
→ List<double?>
-
The total of
series over time, as buckets slots between from and
to.
