From 3bd2829e5c125f961b7508bf40ef534a21070562 Mon Sep 17 00:00:00 2001
From: lain <lain@soykaf.club>
Date: Mon, 23 Mar 2020 18:56:01 +0100
Subject: [PATCH] Benchmarks: Add timeline benchmark

---
 benchmarks/load_testing/generator.ex          |  3 +-
 .../mix/tasks/pleroma/benchmarks/timelines.ex | 76 +++++++++++++++++++
 lib/pleroma/web/controller_helper.ex          |  7 +-
 3 files changed, 84 insertions(+), 2 deletions(-)
 create mode 100644 benchmarks/mix/tasks/pleroma/benchmarks/timelines.ex

diff --git a/benchmarks/load_testing/generator.ex b/benchmarks/load_testing/generator.ex
index 3f88fefd7..17e89c13c 100644
--- a/benchmarks/load_testing/generator.ex
+++ b/benchmarks/load_testing/generator.ex
@@ -22,9 +22,10 @@ defmodule Pleroma.LoadTesting.Generator do
 
   def generate_users(opts) do
     IO.puts("Starting generating #{opts[:users_max]} users...")
-    {time, _} = :timer.tc(fn -> do_generate_users(opts) end)
+    {time, users} = :timer.tc(fn -> do_generate_users(opts) end)
 
     IO.puts("Inserting users take #{to_sec(time)} sec.\n")
+    users
   end
 
   defp do_generate_users(opts) do
diff --git a/benchmarks/mix/tasks/pleroma/benchmarks/timelines.ex b/benchmarks/mix/tasks/pleroma/benchmarks/timelines.ex
new file mode 100644
index 000000000..dc6f3d3fc
--- /dev/null
+++ b/benchmarks/mix/tasks/pleroma/benchmarks/timelines.ex
@@ -0,0 +1,76 @@
+defmodule Mix.Tasks.Pleroma.Benchmarks.Timelines do
+  use Mix.Task
+  alias Pleroma.Repo
+  alias Pleroma.LoadTesting.Generator
+
+  alias Pleroma.Web.CommonAPI
+
+  def run(_args) do
+    Mix.Pleroma.start_pleroma()
+
+    # Cleaning tables
+    clean_tables()
+
+    [{:ok, user} | users] = Generator.generate_users(users_max: 1000)
+
+    # Let the user make 100 posts
+
+    1..100
+    |> Enum.each(fn i -> CommonAPI.post(user, %{"status" => to_string(i)}) end)
+
+    # Let 10 random users post
+    posts =
+      users
+      |> Enum.take_random(10)
+      |> Enum.map(fn {:ok, random_user} ->
+        {:ok, activity} = CommonAPI.post(random_user, %{"status" => "."})
+        activity
+      end)
+
+    # let our user repeat them
+    posts
+    |> Enum.each(fn activity ->
+      CommonAPI.repeat(activity.id, user)
+    end)
+
+    Benchee.run(
+      %{
+        "user timeline, no followers" => fn reading_user ->
+          conn =
+            Phoenix.ConnTest.build_conn()
+            |> Plug.Conn.assign(:user, reading_user)
+            |> Plug.Conn.assign(:skip_link_headers, true)
+
+          Pleroma.Web.MastodonAPI.AccountController.statuses(conn, %{"id" => user.id})
+        end
+      },
+      inputs: %{"user" => user, "no user" => nil},
+      time: 60
+    )
+
+    users
+    |> Enum.each(fn {:ok, follower} -> Pleroma.User.follow(follower, user) end)
+
+    Benchee.run(
+      %{
+        "user timeline, all following" => fn reading_user ->
+          conn =
+            Phoenix.ConnTest.build_conn()
+            |> Plug.Conn.assign(:user, reading_user)
+            |> Plug.Conn.assign(:skip_link_headers, true)
+
+          Pleroma.Web.MastodonAPI.AccountController.statuses(conn, %{"id" => user.id})
+        end
+      },
+      inputs: %{"user" => user, "no user" => nil},
+      time: 60
+    )
+  end
+
+  defp clean_tables do
+    IO.puts("Deleting old data...\n")
+    Ecto.Adapters.SQL.query!(Repo, "TRUNCATE users CASCADE;")
+    Ecto.Adapters.SQL.query!(Repo, "TRUNCATE activities CASCADE;")
+    Ecto.Adapters.SQL.query!(Repo, "TRUNCATE objects CASCADE;")
+  end
+end
diff --git a/lib/pleroma/web/controller_helper.ex b/lib/pleroma/web/controller_helper.ex
index ad293cda9..b49523ec3 100644
--- a/lib/pleroma/web/controller_helper.ex
+++ b/lib/pleroma/web/controller_helper.ex
@@ -34,7 +34,12 @@ defmodule Pleroma.Web.ControllerHelper do
 
   defp param_to_integer(_, default), do: default
 
-  def add_link_headers(conn, activities, extra_params \\ %{}) do
+  def add_link_headers(conn, activities, extra_params \\ %{})
+
+  def add_link_headers(%{assigns: %{skip_link_headers: true}} = conn, _activities, _extra_params),
+    do: conn
+
+  def add_link_headers(conn, activities, extra_params) do
     case List.last(activities) do
       %{id: max_id} ->
         params =