Increate timeouts of tests that frequently timeout in CI (#1228)

In the past few weeks some tests have timed out with certain frequency in CI, probably due to its load. Attempt to avoid those by increasing timeouts from 20 to 30 seconds.

Authors:
  - Peter Andreas Entschev (https://github.com/pentschev)

Approvers:
  - Ray Douglass (https://github.com/raydouglass)
  - Benjamin Zaitlen (https://github.com/quasiben)

URL: #1228

ci/test_python.sh

@@ -47,6 +47,7 @@ UCX_WARN_UNUSED_ENV_VARS=n \
 UCX_MEMTYPE_CACHE=n \
 timeout 40m pytest \
   -vv \
+  --durations=0 \
   --capture=no \
   --cache-clear \
   --junitxml="${RAPIDS_TESTS_DIR}/junit-dask-cuda.xml" \

dask_cuda/tests/test_local_cuda_cluster.py

@@ -454,6 +454,7 @@ async def test_get_cluster_configuration():
 @gen_test(timeout=20)
 async def test_worker_fraction_limits():
     async with LocalCUDACluster(
+        dashboard_address=None,
         device_memory_limit=0.1,
         rmm_pool_size=0.2,
         rmm_maximum_pool_size=0.3,

dask_cuda/tests/test_proxify_host_file.py

@@ -384,7 +384,7 @@ def test_incompatible_types(root_dir):
 
 @pytest.mark.parametrize("npartitions", [1, 2, 3])
 @pytest.mark.parametrize("compatibility_mode", [True, False])
-@gen_test(timeout=20)
+@gen_test(timeout=30)
 async def test_compatibility_mode_dataframe_shuffle(compatibility_mode, npartitions):
     cudf = pytest.importorskip("cudf")
 

dask_cuda/tests/test_proxy.py

@@ -400,7 +400,7 @@ def _pxy_deserialize(self):
 
 @pytest.mark.parametrize("send_serializers", [None, ("dask", "pickle"), ("cuda",)])
 @pytest.mark.parametrize("protocol", ["tcp", "ucx"])
-@gen_test(timeout=20)
+@gen_test(timeout=60)
 async def test_communicating_proxy_objects(protocol, send_serializers):
     """Testing serialization of cuDF dataframe when communicating"""
     cudf = pytest.importorskip("cudf")