run tagged gate tests in parallel

Author: timfel

graalpython/com.oracle.graal.python.test/src/graalpytest.py

@@ -56,7 +56,7 @@
 import _thread
 result_lock = threading.RLock()
 if os.environ.get(b"ENABLE_THREADED_GRAALPYTEST") == b"true":
-    thread_count = os.cpu_count()
+    thread_count = max(os.cpu_count(), 16)
     thread_token = threading.Semaphore(thread_count)
     print("Running with %d threads" % thread_count)
 else:

mx.graalpython/mx_graalpython.py

@@ -360,8 +360,8 @@ def graalpython_gate_runner(args, tasks):
 
     with Task('GraalPython Python tests', tasks, tags=[GraalPythonTags.tagged]) as task:
         if task:
-            with set_env(ENABLE_CPYTHON_TAGGED_UNITTESTS="true"):
-                run_python_unittests(python_gvm(), paths=["test_tagged_unittests.py"])
+            with set_env(ENABLE_CPYTHON_TAGGED_UNITTESTS="true", ENABLE_THREADED_GRAALPYTEST="true"):
+                run_python_unittests(python_gvm(), args=["--python.WithThread=true"], paths=["test_tagged_unittests.py"])
 
     # Unittests on SVM
     with Task('GraalPython tests on SVM', tasks, tags=[GraalPythonTags.svmunit]) as task: