25 lines
631 B
Elixir
25 lines
631 B
Elixir
defmodule Forum.VmMemory do
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@moduledoc """
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Snapshot of BEAM VM memory categories.
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These numbers come from `:erlang.memory/0`, so they describe memory held by
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the whole VM rather than memory attributed to a particular Erlang process.
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"""
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@doc """
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Returns VM memory categories as JSON-friendly maps.
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"""
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def list do
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:erlang.memory()
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|> Enum.map(fn {category, bytes} ->
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%{
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"category" => Atom.to_string(category),
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"bytes" => bytes,
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"kb" => div(bytes, 1024),
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"mb" => Float.round(bytes / 1_048_576, 2)
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}
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end)
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|> Enum.sort_by(& &1["bytes"], :desc)
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end
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end
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