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diff --git a/lib/load_testing/generator.ex b/lib/load_testing/generator.ex
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+++ b/lib/load_testing/generator.ex
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+defmodule Pleroma.LoadTesting.Generator do
+  use Pleroma.LoadTesting.Helper
+
+  def generate_users(opts) do
+    IO.puts("Starting generating #{opts[:users_max]} users...")
+    {time, _} = :timer.tc(fn -> do_generate_users(opts) end)
+    IO.puts("Inserting users take #{to_sec(time)} sec.\n")
+  end
+
+  defp do_generate_users(opts) do
+    min = Keyword.get(opts, :users_min, 1)
+    max = Keyword.get(opts, :users_max)
+
+    query =
+      "INSERT INTO \"users\" (\"ap_id\",\"bio\",\"email\",\"follower_address\",\"following\",\"following_address\",\"info\",
+      \"local\",\"name\",\"nickname\",\"password_hash\",\"tags\",\"id\",\"inserted_at\",\"updated_at\") VALUES \n"
+
+    users =
+      Task.async_stream(
+        min..max,
+        &generate_user_data(&1),
+        max_concurrency: 10,
+        timeout: 30_000
+      )
+      |> Enum.reduce("", fn {:ok, data}, acc -> acc <> data <> ", \n" end)
+
+    query = query <> String.replace_trailing(users, ", \n", ";")
+
+    Ecto.Adapters.SQL.query!(Repo, query)
+  end
+
+  defp generate_user_data(i) do
+    user = %User{
+      name: "Test テスト User #{i}",
+      email: "user#{i}@example.com",
+      nickname: "nick#{i}",
+      password_hash: Comeonin.Pbkdf2.hashpwsalt("test"),
+      bio: "Tester Number #{i}",
+      info: %{}
+    }
+
+    user = %{
+      user
+      | ap_id: User.ap_id(user),
+        follower_address: User.ap_followers(user),
+        following_address: User.ap_following(user),
+        following: [User.ap_id(user)]
+    }
+
+    "('#{user.ap_id}', '#{user.bio}', '#{user.email}', '#{user.follower_address}', '{#{
+      user.following
+    }}', '#{user.following_address}', '#{Jason.encode!(user.info)}', '#{user.local}', '#{
+      user.name
+    }', '#{user.nickname}', '#{user.password_hash}', '{#{user.tags}}', uuid_generate_v4(), NOW(), NOW())"
+  end
+
+  def generate_activities(users, opts) do
+    IO.puts("Starting generating #{opts[:activities_max]} activities...")
+    {time, _} = :timer.tc(fn -> do_generate_activities(users, opts) end)
+    IO.puts("Inserting activities take #{to_sec(time)} sec.\n")
+  end
+
+  defp do_generate_activities(users, opts) do
+    Task.async_stream(
+      1..opts[:activities_max],
+      fn _ ->
+        do_generate_activity(users, opts)
+      end,
+      max_concurrency: 10,
+      timeout: 30_000
+    )
+    |> Stream.run()
+  end
+
+  defp do_generate_activity(users, opts) do
+    status =
+      if opts[:mention],
+        do: "some status with @#{opts[:mention].nickname}",
+        else: "some status"
+
+    Pleroma.Web.CommonAPI.post(Enum.random(users), %{"status" => status})
+  end
+end