Test really slow only for 1 travis job #13208
Description
The test test_pairwise_distances_data_derived_params from metrics.pairwise is really really slow (25s instead of a few 100ms).
========================== slowest 20 test durations ===========================
25.10s call metrics/tests/test_pairwise.py::test_pairwise_distances_data_derived_params[Y is not X-pairwise_distances_chunked-seuclidean-2]
25.00s call metrics/tests/test_pairwise.py::test_pairwise_distances_data_derived_params[Y is not X-pairwise_distances_chunked-mahalanobis-2]
24.57s call metrics/tests/test_pairwise.py::test_pairwise_distances_data_derived_params[Y is X-pairwise_distances_chunked-mahalanobis-2]
24.41s call metrics/tests/test_pairwise.py::test_pairwise_distances_data_derived_params[Y is X-pairwise_distances_chunked-seuclidean-2]
The tricky thing is that:
- it's only on the
distrib=ubuntujob. - it affects
pairwise_distances_chunkedbut notpairwise_distances - it's slow only for
n_jobs > 1