adjusted the default configuration so that at least one cpu core remains free (except on single core machines) #332

src/documents/tests/test_settings.py

@@ -0,0 +1,34 @@
+import logging
+from unittest import mock
+
+from django.test import TestCase
+
+from paperless.settings import default_task_workers, default_threads_per_worker
+
+
+class TestSettings(TestCase):
+
+    @mock.patch("paperless.settings.multiprocessing.cpu_count")
+    def test_single_core(self, cpu_count):
+        cpu_count.return_value = 1
+
+        default_workers = default_task_workers()
+
+        default_threads = default_threads_per_worker(default_workers)
+
+        self.assertEqual(default_workers, 1)
+        self.assertEqual(default_threads, 1)
+
+    def test_workers_threads(self):
+        for i in range(2, 64):
+            with mock.patch("paperless.settings.multiprocessing.cpu_count") as cpu_count:
+                cpu_count.return_value = i
+
+                default_workers = default_task_workers()
+
+                default_threads = default_threads_per_worker(default_workers)
+
+                self.assertTrue(default_workers >= 1)
+                self.assertTrue(default_threads >= 1)
+
+                self.assertTrue(default_workers * default_threads < i, f"{i}")