View Source PromEx.BucketGenerator (PromEx v1.11.0)

This module provides functions to generate histogram bucket ranges. The lists of buckets that can be generated are either linear or exponential.

Summary

Functions

exponential!(start, factor, num_buckets)

Create an exponential set of buckets based on the provided parameters.

linear!(start, step, num_buckets)

Create a linear set of buckets based on the provided parameters.

Functions

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exponential!(start, factor, num_buckets)

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@spec exponential!(start :: number(), factor :: number(), num_buckets :: number()) ::
  [
    non_neg_integer()
  ]

Create an exponential set of buckets based on the provided parameters.

Examples 

iex> PromEx.BucketGenerator.exponential!(1, 4, 10)
[1, 4, 16, 64, 256, 1024, 4096, 16384, 65536, 262144]

iex> PromEx.BucketGenerator.exponential!(1, 2, 10)
[1, 2, 4, 8, 16, 32, 64, 128, 256, 512]
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linear!(start, step, num_buckets)

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@spec linear!(start :: number(), step :: number(), num_buckets :: number()) :: [
  non_neg_integer()
]

Create a linear set of buckets based on the provided parameters.

Examples 

iex> PromEx.BucketGenerator.linear!(10, 10, 10)
[10, 20, 30, 40, 50, 60, 70, 80, 90, 100]

iex> PromEx.BucketGenerator.linear!(0, 250, 11)
[0, 250, 500, 750, 1000, 1250, 1500, 1750, 2000, 2250, 2500]