pleroma/benchmarks/load_testing/activities.ex

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defmodule Pleroma.LoadTesting.Activities do
@moduledoc """
Module for generating different activities.
"""
import Ecto.Query
import Pleroma.LoadTesting.Helper, only: [to_sec: 1]
alias Ecto.UUID
alias Pleroma.Constants
alias Pleroma.LoadTesting.Users
alias Pleroma.Repo
alias Pleroma.Web.CommonAPI
require Constants
@defaults [
iterations: 170,
friends_used: 20,
non_friends_used: 20
]
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@max_concurrency 10
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@visibility ~w(public private direct unlisted)
@types ~w(simple emoji mentions hell_thread attachment tag like reblog simple_thread remote)
@groups ~w(user friends non_friends)
@spec generate(User.t(), keyword()) :: :ok
def generate(user, opts \\ []) do
{:ok, _} =
Agent.start_link(fn -> %{} end,
name: :benchmark_state
)
opts = Keyword.merge(@defaults, opts)
friends =
user
|> Users.get_users(limit: opts[:friends_used], local: :local, friends?: true)
|> Enum.shuffle()
non_friends =
user
|> Users.get_users(limit: opts[:non_friends_used], local: :local, friends?: false)
|> Enum.shuffle()
task_data =
for visibility <- @visibility,
type <- @types,
group <- @groups,
do: {visibility, type, group}
IO.puts("Starting generating #{opts[:iterations]} iterations of activities...")
friends_thread = Enum.take(friends, 5)
non_friends_thread = Enum.take(friends, 5)
public_long_thread = fn ->
generate_long_thread("public", user, friends_thread, non_friends_thread, opts)
end
private_long_thread = fn ->
generate_long_thread("private", user, friends_thread, non_friends_thread, opts)
end
iterations = opts[:iterations]
{time, _} =
:timer.tc(fn ->
Enum.each(
1..iterations,
fn
i when i == iterations - 2 ->
spawn(public_long_thread)
spawn(private_long_thread)
generate_activities(user, friends, non_friends, Enum.shuffle(task_data), opts)
_ ->
generate_activities(user, friends, non_friends, Enum.shuffle(task_data), opts)
end
)
end)
IO.puts("Generating iterations of activities took #{to_sec(time)} sec.\n")
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:ok
end
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def generate_power_intervals(opts \\ []) do
count = Keyword.get(opts, :count, 20)
power = Keyword.get(opts, :power, 2)
IO.puts("Generating #{count} intervals for a power #{power} series...")
counts = Enum.map(1..count, fn n -> :math.pow(n, power) end)
sum = Enum.sum(counts)
densities =
Enum.map(counts, fn c ->
c / sum
end)
densities
|> Enum.reduce(0, fn density, acc ->
if acc == 0 do
[{0, density}]
else
[{_, lower} | _] = acc
[{lower, lower + density} | acc]
end
end)
|> Enum.reverse()
end
def generate_tagged_activities(opts \\ []) do
tag_count = Keyword.get(opts, :tag_count, 20)
users = Keyword.get(opts, :users, Repo.all(Pleroma.User))
activity_count = Keyword.get(opts, :count, 200_000)
intervals = generate_power_intervals(count: tag_count)
IO.puts(
"Generating #{activity_count} activities using #{tag_count} different tags of format `tag_n`, starting at tag_0"
)
Enum.each(1..activity_count, fn _ ->
random = :rand.uniform()
i = Enum.find_index(intervals, fn {lower, upper} -> lower <= random && upper > random end)
CommonAPI.post(Enum.random(users), %{status: "a post with the tag #tag_#{i}"})
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end)
end
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defp generate_long_thread(visibility, user, friends, non_friends, _opts) do
group =
if visibility == "public",
do: "friends",
else: "user"
tasks = get_reply_tasks(visibility, group) |> Stream.cycle() |> Enum.take(50)
{:ok, activity} =
CommonAPI.post(user, %{
status: "Start of #{visibility} long thread",
visibility: visibility
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})
Agent.update(:benchmark_state, fn state ->
key =
if visibility == "public",
do: :public_thread,
else: :private_thread
Map.put(state, key, activity)
end)
acc = {activity.id, ["@" <> user.nickname, "reply to long thread"]}
insert_replies_for_long_thread(tasks, visibility, user, friends, non_friends, acc)
IO.puts("Generating #{visibility} long thread ended\n")
end
defp insert_replies_for_long_thread(tasks, visibility, user, friends, non_friends, acc) do
Enum.reduce(tasks, acc, fn
"friend", {id, data} ->
friend = Enum.random(friends)
insert_reply(friend, List.delete(data, "@" <> friend.nickname), id, visibility)
"non_friend", {id, data} ->
non_friend = Enum.random(non_friends)
insert_reply(non_friend, List.delete(data, "@" <> non_friend.nickname), id, visibility)
"user", {id, data} ->
insert_reply(user, List.delete(data, "@" <> user.nickname), id, visibility)
end)
end
defp generate_activities(user, friends, non_friends, task_data, opts) do
Task.async_stream(
task_data,
fn {visibility, type, group} ->
insert_activity(type, visibility, group, user, friends, non_friends, opts)
end,
max_concurrency: @max_concurrency,
timeout: 30_000
)
|> Stream.run()
end
defp insert_activity("simple", visibility, group, user, friends, non_friends, _opts) do
{:ok, _activity} =
group
|> get_actor(user, friends, non_friends)
|> CommonAPI.post(%{status: "Simple status", visibility: visibility})
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end
defp insert_activity("emoji", visibility, group, user, friends, non_friends, _opts) do
{:ok, _activity} =
group
|> get_actor(user, friends, non_friends)
|> CommonAPI.post(%{
status: "Simple status with emoji :firefox:",
visibility: visibility
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})
end
defp insert_activity("mentions", visibility, group, user, friends, non_friends, _opts) do
user_mentions =
get_random_mentions(friends, Enum.random(0..3)) ++
get_random_mentions(non_friends, Enum.random(0..3))
user_mentions =
if Enum.random([true, false]),
do: ["@" <> user.nickname | user_mentions],
else: user_mentions
{:ok, _activity} =
group
|> get_actor(user, friends, non_friends)
|> CommonAPI.post(%{
status: Enum.join(user_mentions, ", ") <> " simple status with mentions",
visibility: visibility
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})
end
defp insert_activity("hell_thread", visibility, group, user, friends, non_friends, _opts) do
mentions =
with {:ok, nil} <- Cachex.get(:user_cache, "hell_thread_mentions") do
cached =
([user | Enum.take(friends, 10)] ++ Enum.take(non_friends, 10))
|> Enum.map(&"@#{&1.nickname}")
|> Enum.join(", ")
Cachex.put(:user_cache, "hell_thread_mentions", cached)
cached
else
{:ok, cached} -> cached
end
{:ok, _activity} =
group
|> get_actor(user, friends, non_friends)
|> CommonAPI.post(%{
status: mentions <> " hell thread status",
visibility: visibility
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})
end
defp insert_activity("attachment", visibility, group, user, friends, non_friends, _opts) do
actor = get_actor(group, user, friends, non_friends)
obj_data = %{
"actor" => actor.ap_id,
"name" => "4467-11.jpg",
"type" => "Document",
"url" => [
%{
"href" =>
"#{Pleroma.Web.base_url()}/media/b1b873552422a07bf53af01f3c231c841db4dfc42c35efde681abaf0f2a4eab7.jpg",
"mediaType" => "image/jpeg",
"type" => "Link"
}
]
}
object = Repo.insert!(%Pleroma.Object{data: obj_data})
{:ok, _activity} =
CommonAPI.post(actor, %{
status: "Post with attachment",
visibility: visibility,
media_ids: [object.id]
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})
end
defp insert_activity("tag", visibility, group, user, friends, non_friends, _opts) do
{:ok, _activity} =
group
|> get_actor(user, friends, non_friends)
|> CommonAPI.post(%{status: "Status with #tag", visibility: visibility})
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end
defp insert_activity("like", visibility, group, user, friends, non_friends, opts) do
actor = get_actor(group, user, friends, non_friends)
with activity_id when not is_nil(activity_id) <- get_random_create_activity_id(),
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{:ok, _activity} <- CommonAPI.favorite(actor, activity_id) do
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:ok
else
{:error, _} ->
insert_activity("like", visibility, group, user, friends, non_friends, opts)
nil ->
Process.sleep(15)
insert_activity("like", visibility, group, user, friends, non_friends, opts)
end
end
defp insert_activity("reblog", visibility, group, user, friends, non_friends, opts) do
actor = get_actor(group, user, friends, non_friends)
with activity_id when not is_nil(activity_id) <- get_random_create_activity_id(),
{:ok, _activity, _object} <- CommonAPI.repeat(activity_id, actor) do
:ok
else
{:error, _} ->
insert_activity("reblog", visibility, group, user, friends, non_friends, opts)
nil ->
Process.sleep(15)
insert_activity("reblog", visibility, group, user, friends, non_friends, opts)
end
end
defp insert_activity("simple_thread", visibility, group, user, friends, non_friends, _opts)
when visibility in ["public", "unlisted", "private"] do
actor = get_actor(group, user, friends, non_friends)
tasks = get_reply_tasks(visibility, group)
{:ok, activity} = CommonAPI.post(user, %{status: "Simple status", visibility: visibility})
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acc = {activity.id, ["@" <> actor.nickname, "reply to status"]}
insert_replies(tasks, visibility, user, friends, non_friends, acc)
end
defp insert_activity("simple_thread", "direct", group, user, friends, non_friends, _opts) do
actor = get_actor(group, user, friends, non_friends)
tasks = get_reply_tasks("direct", group)
list =
case group do
"non_friends" ->
Enum.take(non_friends, 3)
_ ->
Enum.take(friends, 3)
end
data = Enum.map(list, &("@" <> &1.nickname))
{:ok, activity} =
CommonAPI.post(actor, %{
status: Enum.join(data, ", ") <> "simple status",
visibility: "direct"
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})
acc = {activity.id, ["@" <> user.nickname | data] ++ ["reply to status"]}
insert_direct_replies(tasks, user, list, acc)
end
defp insert_activity("remote", _, "user", _, _, _, _), do: :ok
defp insert_activity("remote", visibility, group, user, _friends, _non_friends, opts) do
remote_friends =
Users.get_users(user, limit: opts[:friends_used], local: :external, friends?: true)
remote_non_friends =
Users.get_users(user, limit: opts[:non_friends_used], local: :external, friends?: false)
actor = get_actor(group, user, remote_friends, remote_non_friends)
{act_data, obj_data} = prepare_activity_data(actor, visibility, user)
{activity_data, object_data} = other_data(actor)
activity_data
|> Map.merge(act_data)
|> Map.put("object", Map.merge(object_data, obj_data))
|> Pleroma.Web.ActivityPub.ActivityPub.insert(false)
end
defp get_actor("user", user, _friends, _non_friends), do: user
defp get_actor("friends", _user, friends, _non_friends), do: Enum.random(friends)
defp get_actor("non_friends", _user, _friends, non_friends), do: Enum.random(non_friends)
defp other_data(actor) do
%{host: host} = URI.parse(actor.ap_id)
datetime = DateTime.utc_now()
context_id = "http://#{host}:4000/contexts/#{UUID.generate()}"
activity_id = "http://#{host}:4000/activities/#{UUID.generate()}"
object_id = "http://#{host}:4000/objects/#{UUID.generate()}"
activity_data = %{
"actor" => actor.ap_id,
"context" => context_id,
"id" => activity_id,
"published" => datetime,
"type" => "Create",
"directMessage" => false
}
object_data = %{
"actor" => actor.ap_id,
"attachment" => [],
"attributedTo" => actor.ap_id,
"bcc" => [],
"bto" => [],
"content" => "Remote post",
"context" => context_id,
"conversation" => context_id,
"emoji" => %{},
"id" => object_id,
"published" => datetime,
"sensitive" => false,
"summary" => "",
"tag" => [],
"to" => ["https://www.w3.org/ns/activitystreams#Public"],
"type" => "Note"
}
{activity_data, object_data}
end
defp prepare_activity_data(actor, "public", _mention) do
obj_data = %{
"cc" => [actor.follower_address],
"to" => [Constants.as_public()]
}
act_data = %{
"cc" => [actor.follower_address],
"to" => [Constants.as_public()]
}
{act_data, obj_data}
end
defp prepare_activity_data(actor, "private", _mention) do
obj_data = %{
"cc" => [],
"to" => [actor.follower_address]
}
act_data = %{
"cc" => [],
"to" => [actor.follower_address]
}
{act_data, obj_data}
end
defp prepare_activity_data(actor, "unlisted", _mention) do
obj_data = %{
"cc" => [Constants.as_public()],
"to" => [actor.follower_address]
}
act_data = %{
"cc" => [Constants.as_public()],
"to" => [actor.follower_address]
}
{act_data, obj_data}
end
defp prepare_activity_data(_actor, "direct", mention) do
%{host: mentioned_host} = URI.parse(mention.ap_id)
obj_data = %{
"cc" => [],
"content" =>
"<span class=\"h-card\"><a class=\"u-url mention\" href=\"#{mention.ap_id}\" rel=\"ugc\">@<span>#{
mention.nickname
}</span></a></span> direct message",
"tag" => [
%{
"href" => mention.ap_id,
"name" => "@#{mention.nickname}@#{mentioned_host}",
"type" => "Mention"
}
],
"to" => [mention.ap_id]
}
act_data = %{
"cc" => [],
"directMessage" => true,
"to" => [mention.ap_id]
}
{act_data, obj_data}
end
defp get_reply_tasks("public", "user"), do: ~w(friend non_friend user)
defp get_reply_tasks("public", "friends"), do: ~w(non_friend user friend)
defp get_reply_tasks("public", "non_friends"), do: ~w(user friend non_friend)
defp get_reply_tasks(visibility, "user") when visibility in ["unlisted", "private"],
do: ~w(friend user friend)
defp get_reply_tasks(visibility, "friends") when visibility in ["unlisted", "private"],
do: ~w(user friend user)
defp get_reply_tasks(visibility, "non_friends") when visibility in ["unlisted", "private"],
do: []
defp get_reply_tasks("direct", "user"), do: ~w(friend user friend)
defp get_reply_tasks("direct", "friends"), do: ~w(user friend user)
defp get_reply_tasks("direct", "non_friends"), do: ~w(user non_friend user)
defp insert_replies(tasks, visibility, user, friends, non_friends, acc) do
Enum.reduce(tasks, acc, fn
"friend", {id, data} ->
friend = Enum.random(friends)
insert_reply(friend, data, id, visibility)
"non_friend", {id, data} ->
non_friend = Enum.random(non_friends)
insert_reply(non_friend, data, id, visibility)
"user", {id, data} ->
insert_reply(user, data, id, visibility)
end)
end
defp insert_direct_replies(tasks, user, list, acc) do
Enum.reduce(tasks, acc, fn
group, {id, data} when group in ["friend", "non_friend"] ->
actor = Enum.random(list)
{reply_id, _} =
insert_reply(actor, List.delete(data, "@" <> actor.nickname), id, "direct")
{reply_id, data}
"user", {id, data} ->
{reply_id, _} = insert_reply(user, List.delete(data, "@" <> user.nickname), id, "direct")
{reply_id, data}
end)
end
defp insert_reply(actor, data, activity_id, visibility) do
{:ok, reply} =
CommonAPI.post(actor, %{
status: Enum.join(data, ", "),
visibility: visibility,
in_reply_to_status_id: activity_id
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})
{reply.id, ["@" <> actor.nickname | data]}
end
defp get_random_mentions(_users, count) when count == 0, do: []
defp get_random_mentions(users, count) do
users
|> Enum.shuffle()
|> Enum.take(count)
|> Enum.map(&"@#{&1.nickname}")
end
defp get_random_create_activity_id do
Repo.one(
from(a in Pleroma.Activity,
where: fragment("(?)->>'type' = ?", a.data, ^"Create"),
order_by: fragment("RANDOM()"),
limit: 1,
select: a.id
)
)
end
end