Improvements to memory tracking (#917)

* Address race condition on cancel timer
* Include memory measurement as part of evaluation metadata
* Move periodic resource computation to a single process
* Have a explicit call out for total memory
This commit is contained in:
José Valim 2022-01-22 17:17:20 +01:00 committed by GitHub
parent 69ccad2fbd
commit 70a9a95d4e
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10 changed files with 184 additions and 176 deletions

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@ -16,6 +16,8 @@ defmodule Livebook.Application do
LivebookWeb.Telemetry,
# Start the PubSub system
{Phoenix.PubSub, name: Livebook.PubSub},
# Periodid measurement of system resources
Livebook.SystemResources,
# Start the tracker server on this node
{Livebook.Tracker, pubsub_server: Livebook.PubSub},
# Start the supervisor dynamically managing sessions

View file

@ -68,6 +68,31 @@ defmodule Livebook.Evaluator do
end
end
@doc """
Computes the memory usage from this evaluator node.
"""
@spec memory :: Livebook.Runtime.runtime_memory()
def memory do
%{
total: total,
processes: processes,
atom: atom,
binary: binary,
code: code,
ets: ets
} = Map.new(:erlang.memory())
%{
total: total,
processes: processes,
atom: atom,
binary: binary,
code: code,
ets: ets,
other: total - processes - atom - binary - code - ets
}
end
@doc """
Asynchronously parses and evaluates the given code.
@ -85,8 +110,6 @@ defmodule Livebook.Evaluator do
* `:file` - file to which the evaluated code belongs. Most importantly,
this has an impact on the value of `__DIR__`.
* `:notify_to` - a pid to be notified when an evaluation is finished.
The process should expect a `{:evaluation_finished, ref}` message.
"""
@spec evaluate_code(t(), pid(), String.t(), ref(), ref() | nil, keyword()) :: :ok
def evaluate_code(evaluator, send_to, code, ref, prev_ref \\ nil, opts \\ []) when ref != nil do
@ -235,7 +258,6 @@ defmodule Livebook.Evaluator do
file = Keyword.get(opts, :file, "nofile")
context = put_in(context.env.file, file)
start_time = System.monotonic_time()
notify_to = Keyword.get(opts, :notify_to)
{result_context, response} =
case eval(code, context.binding, context.env) do
@ -257,9 +279,8 @@ defmodule Livebook.Evaluator do
Evaluator.IOProxy.clear_input_cache(state.io_proxy)
output = state.formatter.format_response(response)
metadata = %{evaluation_time_ms: evaluation_time_ms}
metadata = %{evaluation_time_ms: evaluation_time_ms, memory_usage: memory()}
send(send_to, {:evaluation_response, ref, output, metadata})
if notify_to, do: send(notify_to, {:evaluation_finished, ref})
:erlang.garbage_collect(self())
{:noreply, state}

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@ -127,7 +127,6 @@ defprotocol Livebook.Runtime do
ets: non_neg_integer(),
other: non_neg_integer(),
processes: non_neg_integer(),
system: non_neg_integer(),
total: non_neg_integer()
}
@ -174,7 +173,7 @@ defprotocol Livebook.Runtime do
* `{:evaluation_response, ref, output, metadata}` - final
result of the evaluation. Recognised metadata entries
are: `evaluation_time_ms`
are: `evaluation_time_ms` and `memory_usage`
The output may include input fields. The evaluation may then
request the current value of a previously rendered input by

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@ -179,14 +179,8 @@ defmodule Livebook.Runtime.ErlDist.RuntimeServer do
end
end
def handle_info({:evaluation_finished, _ref}, state) do
send_memory_usage(state)
Process.cancel_timer(state.memory_timer_ref)
{:noreply, schedule_memory_usage(state)}
end
def handle_info(:memory_usage, state) do
send_memory_usage(state)
send(state.owner, {:memory_usage, Evaluator.memory()})
{:noreply, schedule_memory_usage(state)}
end
@ -204,7 +198,6 @@ defmodule Livebook.Runtime.ErlDist.RuntimeServer do
state
) do
state = ensure_evaluator(state, container_ref)
opts = Keyword.put(opts, :notify_to, self())
prev_evaluation_ref =
case prev_locator do
@ -316,17 +309,4 @@ defmodule Livebook.Runtime.ErlDist.RuntimeServer do
ref = Process.send_after(self(), :memory_usage, @memory_usage_interval)
%{state | memory_timer_ref: ref}
end
defp send_memory_usage(state) do
memory =
:erlang.memory()
|> Enum.into(%{})
|> Map.drop([:processes_used, :atom_used])
other =
memory.total - memory.processes - memory.atom - memory.binary - memory.code - memory.ets
memory = Map.put(memory, :other, other)
send(state.owner, {:memory_usage, memory})
end
end

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@ -55,8 +55,6 @@ defmodule Livebook.Session do
alias Livebook.Users.User
alias Livebook.Notebook.{Cell, Section}
@memory_usage_interval 15_000
@type t :: %__MODULE__{
id: id(),
pid: pid(),
@ -76,14 +74,13 @@ defmodule Livebook.Session do
autosave_timer_ref: reference() | nil,
save_task_pid: pid() | nil,
saved_default_file: FileSystem.File.t() | nil,
system_memory_timer_ref: reference() | nil,
memory_usage: memory_usage()
}
@type memory_usage ::
%{
runtime: Livebook.Runtime.runtime_memory() | nil,
system: Livebook.Utils.system_memory()
system: Livebook.SystemResources.memory()
}
@typedoc """
@ -458,7 +455,7 @@ defmodule Livebook.Session do
do: dump_images(state, images),
else: :ok
) do
state = state |> schedule_autosave() |> schedule_system_memory_update()
state = schedule_autosave(state)
{:ok, state}
else
{:error, error} ->
@ -479,8 +476,7 @@ defmodule Livebook.Session do
autosave_path: opts[:autosave_path],
save_task_pid: nil,
saved_default_file: nil,
system_memory_timer_ref: nil,
memory_usage: %{runtime: nil, system: Utils.fetch_system_memory()}
memory_usage: %{runtime: nil, system: Livebook.SystemResources.memory()}
}
{:ok, state}
@ -521,11 +517,6 @@ defmodule Livebook.Session do
end
end
defp schedule_system_memory_update(state) do
ref = Process.send_after(self(), :system_memory, @memory_usage_interval)
%{state | system_memory_timer_ref: ref}
end
@impl true
def handle_call(:describe_self, _from, state) do
{:reply, self_from_state(state), state}
@ -781,8 +772,14 @@ defmodule Livebook.Session do
end
def handle_info({:evaluation_response, cell_id, response, metadata}, state) do
{memory_usage, metadata} = Map.pop(metadata, :memory_usage)
operation = {:add_cell_evaluation_response, self(), cell_id, response, metadata}
{:noreply, handle_operation(state, operation)}
{:noreply,
state
|> put_memory_usage(memory_usage)
|> handle_operation(operation)
|> notify_update()}
end
def handle_info({:evaluation_input, cell_id, reply_to, input_id}, state) do
@ -832,17 +829,8 @@ defmodule Livebook.Session do
{:noreply, handle_save_finished(state, result, file, default?)}
end
def handle_info(:system_memory, state) do
{:noreply, state |> update_system_memory_usage() |> schedule_system_memory_update()}
end
def handle_info({:memory_usage, runtime_memory}, state) do
Process.cancel_timer(state.system_memory_timer_ref)
system_memory = Utils.fetch_system_memory()
memory = %{runtime: runtime_memory, system: system_memory}
state = %{state | memory_usage: memory}
notify_update(state)
{:noreply, state}
{:noreply, state |> put_memory_usage(runtime_memory) |> notify_update()}
end
def handle_info(_message, state), do: {:noreply, state}
@ -1010,16 +998,15 @@ defmodule Livebook.Session do
defp after_operation(state, _prev_state, {:set_notebook_name, _pid, _name}) do
notify_update(state)
state
end
defp after_operation(state, _prev_state, {:set_runtime, _pid, runtime}) do
if runtime do
state
else
put_in(state.memory_usage.runtime, nil)
|> update_system_memory_usage()
|> schedule_system_memory_update()
state
|> put_memory_usage(nil)
|> notify_update()
end
end
@ -1040,8 +1027,6 @@ defmodule Livebook.Session do
end
notify_update(state)
state
end
defp after_operation(
@ -1166,10 +1151,15 @@ defmodule Livebook.Session do
Phoenix.PubSub.broadcast(Livebook.PubSub, "sessions:#{session_id}", message)
end
defp put_memory_usage(state, runtime) do
put_in(state.memory_usage, %{runtime: runtime, system: Livebook.SystemResources.memory()})
end
defp notify_update(state) do
session = self_from_state(state)
Livebook.Sessions.update_session(session)
broadcast_message(state.session_id, {:session_updated, session})
state
end
defp maybe_save_notebook_async(state) do
@ -1310,10 +1300,4 @@ defmodule Livebook.Session do
defp container_ref_for_section(%{parent_id: nil}), do: :main_flow
defp container_ref_for_section(section), do: section.id
defp update_system_memory_usage(state) do
state = put_in(state.memory_usage.system, Utils.fetch_system_memory())
notify_update(state)
state
end
end

View file

@ -0,0 +1,37 @@
defmodule Livebook.SystemResources do
# Periodically compute system resource usage.
@moduledoc false
@type memory :: %{total: non_neg_integer(), free: non_neg_integer()}
use GenServer
@name __MODULE__
@spec memory() :: memory()
def memory do
:ets.lookup_element(@name, :memory, 2)
end
@doc false
def start_link(_opts) do
GenServer.start_link(__MODULE__, :ok, name: @name)
end
@impl true
def init(:ok) do
:ets.new(@name, [:set, :named_table, :protected])
measure_and_schedule()
{:ok, %{}}
end
@impl true
def handle_info(:measure, state) do
measure_and_schedule()
{:noreply, state}
end
defp measure_and_schedule() do
memory = :memsup.get_system_memory_data()
:ets.insert(@name, {:memory, %{total: memory[:total_memory], free: memory[:free_memory]}})
Process.send_after(self(), :measure, 15000)
end
end

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@ -3,8 +3,6 @@ defmodule Livebook.Utils do
@type id :: binary()
@type system_memory :: %{total: non_neg_integer(), free: non_neg_integer()}
@doc """
Generates a random binary id.
"""
@ -371,15 +369,6 @@ defmodule Livebook.Utils do
|> Enum.join("\n")
end
@doc """
Fetches the total and free memory of the system
"""
@spec fetch_system_memory() :: system_memory()
def fetch_system_memory() do
memory = :memsup.get_system_memory_data()
%{total: memory[:total_memory], free: memory[:free_memory]}
end
def format_bytes(bytes) when is_integer(bytes) do
cond do
bytes >= memory_unit(:TB) -> format_bytes(bytes, :TB)

View file

@ -1,7 +1,7 @@
defmodule LivebookWeb.HomeLive.SessionListComponent do
use LivebookWeb, :live_component
import Livebook.Utils, only: [format_bytes: 1, fetch_system_memory: 0]
import Livebook.Utils, only: [format_bytes: 1]
import LivebookWeb.SessionHelpers, only: [uses_memory?: 1]
@impl true
@ -24,8 +24,11 @@ defmodule LivebookWeb.HomeLive.SessionListComponent do
socket =
socket
|> assign(assigns)
|> assign(sessions: sessions, show_autosave_note?: show_autosave_note?)
|> assign(memory: memory_info(sessions))
|> assign(
sessions: sessions,
show_autosave_note?: show_autosave_note?,
memory: memory_info()
)
{:ok, socket}
end
@ -38,15 +41,15 @@ defmodule LivebookWeb.HomeLive.SessionListComponent do
<h2 class="uppercase font-semibold text-gray-500">
Running sessions (<%= length(@sessions) %>)
</h2>
<span class="tooltip top" data-tooltip={"This machine has #{format_bytes(@memory.system.total)}"}>
<div class="text-md text-gray-500 font-medium">
<span> <%= format_bytes(@memory.sessions) %> / <%= format_bytes(@memory.system.free) %></span>
<div class="w-64 h-4 bg-gray-200">
<div class="h-4 bg-blue-600"
style={"width: #{@memory.percentage}%"}>
<span class="tooltip top" data-tooltip={"#{format_bytes(@memory.free)} available"}>
<div class="text-md text-gray-500 font-medium">
<span> <%= format_bytes(@memory.used) %> / <%= format_bytes(@memory.total) %></span>
<div class="w-64 h-4 bg-gray-200">
<div class="h-4 bg-blue-600"
style={"width: #{@memory.percentage}%"}>
</div>
</div>
</div>
</div>
</span>
<.menu id="sessions-order-menu">
<:toggle>
@ -187,16 +190,11 @@ defmodule LivebookWeb.HomeLive.SessionListComponent do
Enum.sort_by(sessions, &total_runtime_memory/1, :desc)
end
defp memory_info(sessions) do
sessions_memory =
sessions
|> Enum.map(&total_runtime_memory/1)
|> Enum.sum()
system_memory = fetch_system_memory()
percentage = Float.round(sessions_memory / system_memory.free * 100, 2)
%{sessions: sessions_memory, system: system_memory, percentage: percentage}
defp memory_info() do
%{free: free, total: total} = Livebook.SystemResources.memory()
used = total - free
percentage = Float.round(used / total * 100, 2)
%{free: free, used: used, total: total, percentage: percentage}
end
defp total_runtime_memory(%{memory_usage: %{runtime: nil}}), do: 0

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@ -395,7 +395,7 @@ defmodule LivebookWeb.SessionLive do
<.remix_icon icon="settings-3-line text-xl" />
<% end %>
</div>
<div class="flex flex-col mt-4 space-y-4">
<div class="flex flex-col mt-2 space-y-4">
<%= if @data_view.runtime do %>
<div class="flex flex-col space-y-3">
<.labeled_text label="Type" text={runtime_type_label(@data_view.runtime)} />
@ -430,41 +430,15 @@ defmodule LivebookWeb.SessionLive do
</div>
<% end %>
<%= if uses_memory?(@session.memory_usage) do %>
<div class="py-6 flex flex-col justify-center relative overflow-hidden">
<div class="mb-1 text-sm font-semibold text-gray-800 flex flex-row justify-between">
<span class="text-gray-500 uppercase">Memory:</span>
<div class="basis-3/4">
<span class="tooltip bottom"
data-tooltip={"This machine has #{format_bytes(@session.memory_usage.system.total)}"}>
<span class="w-full text-right">
<%= format_bytes(@session.memory_usage.runtime.total) %>
/
<%= format_bytes(@session.memory_usage.system.free) %>
</span>
</span>
</div>
</div>
<div class="w-full h-6 flex flex-row gap-1">
<%= for {type, memory} <- runtime_memory(@session.memory_usage) do %>
<div class={"h-6 #{memory_color(type)}"} style={"width: #{memory.percentage}%"}></div>
<% end %>
</div>
<div class="flex flex-col py-4">
<%= for {type, memory} <- runtime_memory(@session.memory_usage) do %>
<div class="flex flex-row items-center">
<span class={"w-4 h-4 mr-2 rounded #{memory_color(type)}"}></span>
<span class="capitalize text-gray-700"><%= type %></span>
<span class="text-gray-500 ml-auto"><%= memory.unit %></span>
</div>
<% end %>
</div>
</div>
<.memory_info memory_usage={@session.memory_usage} />
<% else %>
<div class="mb-1 text-sm font-semibold text-gray-800 py-4 flex flex-col">
<span class="w-full uppercase text-gray-500">Memory</span>
<%= format_bytes(@session.memory_usage.system.free) %>
available out of
<%= format_bytes(@session.memory_usage.system.total) %>
<div class="mb-1 text-sm text-gray-800 py-6 flex flex-col">
<span class="w-full uppercase font-semibold text-gray-500">Memory</span>
<p class="py-1">
<%= format_bytes(@session.memory_usage.system.free) %>
available out of
<%= format_bytes(@session.memory_usage.system.total) %>
</p>
</div>
<% end %>
</div>
@ -472,6 +446,38 @@ defmodule LivebookWeb.SessionLive do
"""
end
defp memory_info(assigns) do
assigns = assign(assigns, :runtime_memory, runtime_memory(assigns.memory_usage))
~H"""
<div class="py-6 flex flex-col justify-center">
<div class="mb-1 text-sm font-semibold text-gray-800 flex flex-row justify-between">
<span class="text-gray-500 uppercase">Memory</span>
<span class="text-right">
<%= format_bytes(@memory_usage.system.free) %> available
</span>
</div>
<div class="w-full h-8 flex flex-row py-1 gap-0.5">
<%= for {type, memory} <- @runtime_memory do %>
<div class={"h-6 #{memory_color(type)}"} style={"width: #{memory.percentage}%"}></div>
<% end %>
</div>
<div class="flex flex-col py-1">
<%= for {type, memory} <- @runtime_memory do %>
<div class="flex flex-row items-center">
<span class={"w-4 h-4 mr-2 rounded #{memory_color(type)}"}></span>
<span class="capitalize text-gray-700"><%= type %></span>
<span class="text-gray-500 ml-auto"><%= memory.unit %></span>
</div>
<% end %>
<div class="flex rounded justify-center my-2 py-0.5 text-sm text-gray-800 bg-gray-200">
Total: <%= format_bytes(@memory_usage.runtime.total) %>
</div>
</div>
</div>
"""
end
defp runtime_type_label(%Runtime.ElixirStandalone{}), do: "Elixir standalone"
defp runtime_type_label(%Runtime.MixStandalone{}), do: "Mix standalone"
defp runtime_type_label(%Runtime.Attached{}), do: "Attached"
@ -1525,11 +1531,11 @@ defmodule LivebookWeb.SessionLive do
"Livebook - #{notebook_name}"
end
defp memory_color(:atom), do: "bg-green-500"
defp memory_color(:code), do: "bg-blue-700"
defp memory_color(:processes), do: "bg-red-500"
defp memory_color(:binary), do: "bg-blue-500"
defp memory_color(:ets), do: "bg-yellow-600"
defp memory_color(:atom), do: "bg-blue-500"
defp memory_color(:code), do: "bg-yellow-600"
defp memory_color(:processes), do: "bg-blue-700"
defp memory_color(:binary), do: "bg-green-500"
defp memory_color(:ets), do: "bg-red-500"
defp memory_color(:other), do: "bg-gray-400"
defp runtime_memory(%{runtime: memory}) do

View file

@ -9,6 +9,12 @@ defmodule Livebook.EvaluatorTest do
%{evaluator: evaluator, object_tracker: object_tracker}
end
defmacrop metadata do
quote do
%{evaluation_time_ms: _, memory_usage: %{}}
end
end
describe "evaluate_code/6" do
test "given a valid code returns evaluation result", %{evaluator: evaluator} do
code = """
@ -19,12 +25,16 @@ defmodule Livebook.EvaluatorTest do
Evaluator.evaluate_code(evaluator, self(), code, :code_1)
assert_receive {:evaluation_response, :code_1, {:ok, 3}, %{evaluation_time_ms: _time_ms}}
assert_receive {:evaluation_response, :code_1, {:ok, 3}, metadata() = metadata}
assert metadata.evaluation_time_ms >= 0
assert %{atom: _, binary: _, code: _, ets: _, other: _, processes: _, total: _} =
metadata.memory_usage
end
test "given no prev_ref does not see previous evaluation context", %{evaluator: evaluator} do
Evaluator.evaluate_code(evaluator, self(), "x = 1", :code_1)
assert_receive {:evaluation_response, :code_1, _, %{evaluation_time_ms: _time_ms}}
assert_receive {:evaluation_response, :code_1, _, metadata()}
ignore_warnings(fn ->
Evaluator.evaluate_code(evaluator, self(), "x", :code_2)
@ -33,23 +43,23 @@ defmodule Livebook.EvaluatorTest do
{:error, _kind,
%CompileError{
description: "undefined function x/0 (there is no such import)"
}, _stacktrace}, %{evaluation_time_ms: _time_ms}}
}, _stacktrace}, metadata()}
end)
end
test "given prev_ref sees previous evaluation context", %{evaluator: evaluator} do
Evaluator.evaluate_code(evaluator, self(), "x = 1", :code_1)
assert_receive {:evaluation_response, :code_1, _, %{evaluation_time_ms: _time_ms}}
assert_receive {:evaluation_response, :code_1, _, metadata()}
Evaluator.evaluate_code(evaluator, self(), "x", :code_2, :code_1)
assert_receive {:evaluation_response, :code_2, {:ok, 1}, %{evaluation_time_ms: _time_ms}}
assert_receive {:evaluation_response, :code_2, {:ok, 1}, metadata()}
end
test "given invalid prev_ref just uses default context", %{evaluator: evaluator} do
Evaluator.evaluate_code(evaluator, self(), ":hey", :code_1, :code_nonexistent)
assert_receive {:evaluation_response, :code_1, {:ok, :hey}, %{evaluation_time_ms: _time_ms}}
assert_receive {:evaluation_response, :code_1, {:ok, :hey}, metadata()}
end
test "captures standard output and sends it to the caller", %{evaluator: evaluator} do
@ -73,8 +83,7 @@ defmodule Livebook.EvaluatorTest do
assert_receive {:evaluation_input, :code_1, reply_to, "input1"}
send(reply_to, {:evaluation_input_reply, {:ok, :value}})
assert_receive {:evaluation_response, :code_1, {:ok, :value},
%{evaluation_time_ms: _time_ms}}
assert_receive {:evaluation_response, :code_1, {:ok, :value}, metadata()}
end
test "returns error along with its kind and stacktrace", %{evaluator: evaluator} do
@ -86,7 +95,7 @@ defmodule Livebook.EvaluatorTest do
assert_receive {:evaluation_response, :code_1,
{:error, :error, %FunctionClauseError{},
[{List, :first, _arity, _location}]}, %{evaluation_time_ms: _time_ms}}
[{List, :first, _arity, _location}]}, metadata()}
end
test "in case of an error returns only the relevant part of stacktrace",
@ -119,8 +128,7 @@ defmodule Livebook.EvaluatorTest do
# Note: evaluating module definitions is relatively slow, so we use a higher wait timeout.
assert_receive {:evaluation_response, :code_1,
{:error, _kind, _error, ^expected_stacktrace},
%{evaluation_time_ms: _time_ms}},
{:error, _kind, _error, ^expected_stacktrace}, metadata()},
2_000
end)
end
@ -140,15 +148,14 @@ defmodule Livebook.EvaluatorTest do
"""
Evaluator.evaluate_code(evaluator, self(), code1, :code_1)
assert_receive {:evaluation_response, :code_1, {:ok, _}, %{evaluation_time_ms: _time_ms}}
assert_receive {:evaluation_response, :code_1, {:ok, _}, metadata()}
Evaluator.evaluate_code(evaluator, self(), code2, :code_2, :code_1)
assert_receive {:evaluation_response, :code_2, {:error, _, _, _},
%{evaluation_time_ms: _time_ms}}
assert_receive {:evaluation_response, :code_2, {:error, _, _, _}, metadata()}
Evaluator.evaluate_code(evaluator, self(), code3, :code_3, :code_2)
assert_receive {:evaluation_response, :code_3, {:ok, 4}, %{evaluation_time_ms: _time_ms}}
assert_receive {:evaluation_response, :code_3, {:ok, 4}, metadata()}
end
test "given file option sets it in evaluation environment", %{evaluator: evaluator} do
@ -159,18 +166,7 @@ defmodule Livebook.EvaluatorTest do
opts = [file: "/path/dir/file"]
Evaluator.evaluate_code(evaluator, self(), code, :code_1, nil, opts)
assert_receive {:evaluation_response, :code_1, {:ok, "/path/dir"},
%{evaluation_time_ms: _time_ms}}
end
test "given a :notify_to option to the evaluator", %{evaluator: evaluator} do
code = """
IO.puts("CatOps")
"""
opts = [notify_to: self()]
Evaluator.evaluate_code(evaluator, self(), code, :code_1, nil, opts)
assert_receive {:evaluation_finished, :code_1}
assert_receive {:evaluation_response, :code_1, {:ok, "/path/dir"}, metadata()}
end
test "kills widgets that that no evaluation points to", %{evaluator: evaluator} do
@ -180,15 +176,13 @@ defmodule Livebook.EvaluatorTest do
Evaluator.evaluate_code(evaluator, self(), spawn_widget_code(), :code_1)
assert_receive {:evaluation_response, :code_1, {:ok, widget_pid1},
%{evaluation_time_ms: _time_ms}}
assert_receive {:evaluation_response, :code_1, {:ok, widget_pid1}, metadata()}
ref = Process.monitor(widget_pid1)
Evaluator.evaluate_code(evaluator, self(), spawn_widget_code(), :code_1)
assert_receive {:evaluation_response, :code_1, {:ok, widget_pid2},
%{evaluation_time_ms: _time_ms}}
assert_receive {:evaluation_response, :code_1, {:ok, widget_pid2}, metadata()}
assert_receive {:DOWN, ^ref, :process, ^widget_pid1, _reason}
@ -206,8 +200,7 @@ defmodule Livebook.EvaluatorTest do
:code_1
)
assert_receive {:evaluation_response, :code_1, {:ok, widget_pid1},
%{evaluation_time_ms: _time_ms}}
assert_receive {:evaluation_response, :code_1, {:ok, widget_pid1}, metadata()}
refute Process.alive?(widget_pid1)
end
@ -216,7 +209,7 @@ defmodule Livebook.EvaluatorTest do
describe "forget_evaluation/2" do
test "invalidates the given reference", %{evaluator: evaluator} do
Evaluator.evaluate_code(evaluator, self(), "x = 1", :code_1)
assert_receive {:evaluation_response, :code_1, _, %{evaluation_time_ms: _time_ms}}
assert_receive {:evaluation_response, :code_1, _, metadata()}
Evaluator.forget_evaluation(evaluator, :code_1)
@ -227,15 +220,14 @@ defmodule Livebook.EvaluatorTest do
{:error, _kind,
%CompileError{
description: "undefined function x/0 (there is no such import)"
}, _stacktrace}, %{evaluation_time_ms: _time_ms}}
}, _stacktrace}, metadata()}
end)
end
test "kills widgets that no evaluation points to", %{evaluator: evaluator} do
Evaluator.evaluate_code(evaluator, self(), spawn_widget_code(), :code_1)
assert_receive {:evaluation_response, :code_1, {:ok, widget_pid1},
%{evaluation_time_ms: _time_ms}}
assert_receive {:evaluation_response, :code_1, {:ok, widget_pid1}, metadata()}
ref = Process.monitor(widget_pid1)
Evaluator.forget_evaluation(evaluator, :code_1)
@ -260,7 +252,7 @@ defmodule Livebook.EvaluatorTest do
"""
Evaluator.evaluate_code(evaluator, self(), code, :code_1)
assert_receive {:evaluation_response, :code_1, _, %{evaluation_time_ms: _time_ms}}
assert_receive {:evaluation_response, :code_1, _, metadata()}
request = {:completion, "num"}
Evaluator.handle_intellisense(evaluator, self(), :ref, request, :code_1)
@ -287,23 +279,23 @@ defmodule Livebook.EvaluatorTest do
test "copies the given context and sets as the initial one",
%{evaluator: evaluator, parent_evaluator: parent_evaluator} do
Evaluator.evaluate_code(parent_evaluator, self(), "x = 1", :code_1)
assert_receive {:evaluation_response, :code_1, _, %{evaluation_time_ms: _time_ms}}
assert_receive {:evaluation_response, :code_1, _, metadata()}
Evaluator.initialize_from(evaluator, parent_evaluator, :code_1)
Evaluator.evaluate_code(evaluator, self(), "x", :code_2)
assert_receive {:evaluation_response, :code_2, {:ok, 1}, %{evaluation_time_ms: _time_ms}}
assert_receive {:evaluation_response, :code_2, {:ok, 1}, metadata()}
end
test "mirrors process dictionary of the given evaluator",
%{evaluator: evaluator, parent_evaluator: parent_evaluator} do
Evaluator.evaluate_code(parent_evaluator, self(), "Process.put(:data, 1)", :code_1)
assert_receive {:evaluation_response, :code_1, _, %{evaluation_time_ms: _time_ms}}
assert_receive {:evaluation_response, :code_1, _, metadata()}
Evaluator.initialize_from(evaluator, parent_evaluator, :code_1)
Evaluator.evaluate_code(evaluator, self(), "Process.get(:data)", :code_2)
assert_receive {:evaluation_response, :code_2, {:ok, 1}, %{evaluation_time_ms: _time_ms}}
assert_receive {:evaluation_response, :code_2, {:ok, 1}, metadata()}
end
end