deps (tests): require pytest-xdist>=3.2, use -n=logical workers and workstealing scheduler (#9116)

.github/workflows/tests.yaml

@@ -43,7 +43,7 @@ jobs:
     - name: run tests
       timeout-minutes: 30
       run: >
-        pytest -nauto --timeout=300 --durations=100
+        pytest -n=logical --timeout=300 --durations=100
         --cov --cov-report=xml --cov-report=term
     - name: upload coverage report
       uses: codecov/codecov-action@v3

pyproject.toml

@@ -101,7 +101,7 @@ tests = [
     "pytest-mock",
     "pytest-test-utils",
     "pytest-timeout>=2",
-    "pytest-xdist>=3",
+    "pytest-xdist>=3.2",
     'pywin32>=225; sys_platform == "win32"', # optional test dependency
 ]
 webdav = ["dvc-webdav==2.19.1"]
@@ -131,7 +131,7 @@ known_first_party = ["dvc", "dvc_data", "dvc_objects", "dvc_render", "dvc_task",
 profile = "black"
 
 [tool.pytest.ini_options]
-addopts = "-ra --cov-config pyproject.toml"
+addopts = "-ra --cov-config pyproject.toml --dist worksteal"
 filterwarnings = [
     "error::pytest_mock.PytestMockWarning",
     # remove when aiobotocore supports botocore>=1.29.13

tests/__main__.py

@@ -3,4 +3,4 @@ if __name__ == "__main__":
 
     import pytest
 
-    sys.exit(pytest.main(["-v", "-n=auto", *sys.argv[1:]]))
+    sys.exit(pytest.main(["-v", "-n=logical", *sys.argv[1:]]))