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🚀 Pull Request

Description

Closes #6907

Note this pin is a temporary measure, just to allow us to continue getting up-to-date information on our other dependencies; we aim to have the Pandas pin removed before Iris 3.15 is released - #6761


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@github-actions github-actions bot added the benchmark_this Request that this pull request be benchmarked to check if it introduces performance shifts label Jan 29, 2026
@trexfeathers
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Heads-up @hsteptoe that there is a pandas<3 pin you will need to remove before beginning work.

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codecov bot commented Jan 29, 2026

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.18%. Comparing base (aebae6d) to head (4738f98).

Additional details and impacted files
@@           Coverage Diff           @@
##             main    #6918   +/-   ##
=======================================
  Coverage   90.18%   90.18%           
=======================================
  Files          91       91           
  Lines       24822    24822           
  Branches     4656     4656           
=======================================
  Hits        22385    22385           
  Misses       1669     1669           
  Partials      768      768           

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⏱️ Performance Benchmark Report: d7de2e2

Performance shifts

Full benchmark results

Benchmarks that have stayed the same:

| Change   | Before [aebae6d1]    | After [d7de2e25]    |   Ratio | Benchmark (Parameter)                                                                       |
|----------|----------------------|---------------------|---------|---------------------------------------------------------------------------------------------|
|          | 17.9±0.1ms           | 18.1±0.1ms          |    1.01 | aggregate_collapse.Aggregation.time_aggregated_by_COUNT(False)                              |
|          | 50.9±0.7ms           | 51.3±0.5ms          |    1.01 | aggregate_collapse.Aggregation.time_aggregated_by_COUNT(True)                               |
|          | 30.6±0.4ms           | 30.5±0.1ms          |    1    | aggregate_collapse.Aggregation.time_aggregated_by_FAST_PERCENTILE(False)                    |
|          | 182±3ms              | 187±4ms             |    1.03 | aggregate_collapse.Aggregation.time_aggregated_by_FAST_PERCENTILE(True)                     |
|          | 19.7±0.09ms          | 20.0±0.3ms          |    1.01 | aggregate_collapse.Aggregation.time_aggregated_by_GMEAN(False)                              |
|          | 31.3±0.2ms           | 31.9±0.3ms          |    1.02 | aggregate_collapse.Aggregation.time_aggregated_by_GMEAN(True)                               |
|          | 19.8±0.09ms          | 20.0±0.07ms         |    1.01 | aggregate_collapse.Aggregation.time_aggregated_by_HMEAN(False)                              |
|          | 31.6±0.2ms           | 31.9±0.6ms          |    1.01 | aggregate_collapse.Aggregation.time_aggregated_by_HMEAN(True)                               |
|          | 17.8±0.1ms           | 17.9±0.1ms          |    1    | aggregate_collapse.Aggregation.time_aggregated_by_MAX(False)                                |
|          | 43.7±0.6ms           | 43.9±0.8ms          |    1    | aggregate_collapse.Aggregation.time_aggregated_by_MAX(True)                                 |
|          | 120±2ms              | 120±1ms             |    1    | aggregate_collapse.Aggregation.time_aggregated_by_MAX_RUN(False)                            |
|          | 124±0.6ms            | 125±2ms             |    1.01 | aggregate_collapse.Aggregation.time_aggregated_by_MAX_RUN(True)                             |
|          | 18.9±0.2ms           | 18.9±0.1ms          |    1    | aggregate_collapse.Aggregation.time_aggregated_by_MEAN(False)                               |
|          | 47.1±0.8ms           | 48.7±2ms            |    1.03 | aggregate_collapse.Aggregation.time_aggregated_by_MEAN(True)                                |
|          | 20.1±0.1ms           | 20.2±0.2ms          |    1    | aggregate_collapse.Aggregation.time_aggregated_by_MEDIAN(False)                             |
|          | 55.7±0.8ms           | 55.9±0.7ms          |    1    | aggregate_collapse.Aggregation.time_aggregated_by_MEDIAN(True)                              |
|          | 17.8±0.1ms           | 17.9±0.2ms          |    1.01 | aggregate_collapse.Aggregation.time_aggregated_by_MIN(False)                                |
|          | 43.0±0.6ms           | 44.4±0.8ms          |    1.03 | aggregate_collapse.Aggregation.time_aggregated_by_MIN(True)                                 |
|          | 934±6ms              | 924±10ms            |    0.99 | aggregate_collapse.Aggregation.time_aggregated_by_PEAK(False)                               |
|          | 942±9ms              | 940±10ms            |    1    | aggregate_collapse.Aggregation.time_aggregated_by_PEAK(True)                                |
|          | 164±2ms              | 167±2ms             |    1.02 | aggregate_collapse.Aggregation.time_aggregated_by_PERCENTILE(False)                         |
|          | 304±6ms              | 314±7ms             |    1.03 | aggregate_collapse.Aggregation.time_aggregated_by_PERCENTILE(True)                          |
|          | 18.8±0.08ms          | 18.9±0.2ms          |    1.01 | aggregate_collapse.Aggregation.time_aggregated_by_PROPORTION(False)                         |
|          | 30.3±0.4ms           | 30.3±0.2ms          |    1    | aggregate_collapse.Aggregation.time_aggregated_by_PROPORTION(True)                          |
|          | 18.8±0.2ms           | 19.0±0.1ms          |    1.01 | aggregate_collapse.Aggregation.time_aggregated_by_RMS(False)                                |
|          | 56.1±0.8ms           | 55.9±0.4ms          |    1    | aggregate_collapse.Aggregation.time_aggregated_by_RMS(True)                                 |
|          | 19.7±0.3ms           | 19.8±0.3ms          |    1.01 | aggregate_collapse.Aggregation.time_aggregated_by_STD_DEV(False)                            |
|          | 59.1±0.8ms           | 59.0±0.3ms          |    1    | aggregate_collapse.Aggregation.time_aggregated_by_STD_DEV(True)                             |
|          | 19.7±0.2ms           | 19.7±0.1ms          |    1    | aggregate_collapse.Aggregation.time_aggregated_by_VARIANCE(False)                           |
|          | 55.6±0.8ms           | 55.8±0.6ms          |    1    | aggregate_collapse.Aggregation.time_aggregated_by_VARIANCE(True)                            |
|          | 6.82±0.08ms          | 6.82±0.1ms          |    1    | aggregate_collapse.Aggregation.time_collapsed_by_COUNT(False)                               |
|          | 22.6±0.3ms           | 22.6±0.4ms          |    1    | aggregate_collapse.Aggregation.time_collapsed_by_COUNT(True)                                |
|          | 17.5±0.1ms           | 17.6±0.2ms          |    1    | aggregate_collapse.Aggregation.time_collapsed_by_FAST_PERCENTILE(False)                     |
|          | 144±2ms              | 147±3ms             |    1.02 | aggregate_collapse.Aggregation.time_collapsed_by_FAST_PERCENTILE(True)                      |
|          | 7.14±0.05ms          | 7.12±0.04ms         |    1    | aggregate_collapse.Aggregation.time_collapsed_by_GMEAN(False)                               |
|          | 21.0±0.3ms           | 21.2±0.5ms          |    1.01 | aggregate_collapse.Aggregation.time_collapsed_by_GMEAN(True)                                |
|          | 7.12±0.1ms           | 7.11±0.07ms         |    1    | aggregate_collapse.Aggregation.time_collapsed_by_HMEAN(False)                               |
|          | 20.9±0.4ms           | 21.0±0.4ms          |    1    | aggregate_collapse.Aggregation.time_collapsed_by_HMEAN(True)                                |
|          | 6.66±0.08ms          | 6.70±0.03ms         |    1.01 | aggregate_collapse.Aggregation.time_collapsed_by_MAX(False)                                 |
|          | 21.3±0.2ms           | 21.4±0.2ms          |    1.01 | aggregate_collapse.Aggregation.time_collapsed_by_MAX(True)                                  |
|          | 22.2±0.2ms           | 22.1±0.1ms          |    1    | aggregate_collapse.Aggregation.time_collapsed_by_MAX_RUN(False)                             |
|          | 35.0±0.4ms           | 35.3±0.5ms          |    1.01 | aggregate_collapse.Aggregation.time_collapsed_by_MAX_RUN(True)                              |
|          | 6.95±0.02ms          | 6.96±0.03ms         |    1    | aggregate_collapse.Aggregation.time_collapsed_by_MEAN(False)                                |
|          | 21.7±0.2ms           | 21.9±0.3ms          |    1.01 | aggregate_collapse.Aggregation.time_collapsed_by_MEAN(True)                                 |
|          | 7.90±0.06ms          | 7.95±0.1ms          |    1.01 | aggregate_collapse.Aggregation.time_collapsed_by_MEDIAN(False)                              |
|          | 23.9±0.3ms           | 23.5±0.3ms          |    0.98 | aggregate_collapse.Aggregation.time_collapsed_by_MEDIAN(True)                               |
|          | 6.67±0.1ms           | 6.66±0.08ms         |    1    | aggregate_collapse.Aggregation.time_collapsed_by_MIN(False)                                 |
|          | 21.4±0.2ms           | 21.8±0.3ms          |    1.02 | aggregate_collapse.Aggregation.time_collapsed_by_MIN(True)                                  |
|          | 558±2ms              | 560±4ms             |    1    | aggregate_collapse.Aggregation.time_collapsed_by_PEAK(False)                                |
|          | 569±3ms              | 570±3ms             |    1    | aggregate_collapse.Aggregation.time_collapsed_by_PEAK(True)                                 |
|          | 36.4±0.3ms           | 36.8±0.5ms          |    1.01 | aggregate_collapse.Aggregation.time_collapsed_by_PERCENTILE(False)                          |
|          | 150±1ms              | 151±3ms             |    1    | aggregate_collapse.Aggregation.time_collapsed_by_PERCENTILE(True)                           |
|          | 7.01±0.06ms          | 7.00±0.05ms         |    1    | aggregate_collapse.Aggregation.time_collapsed_by_PROPORTION(False)                          |
|          | 20.9±0.4ms           | 20.7±0.3ms          |    0.99 | aggregate_collapse.Aggregation.time_collapsed_by_PROPORTION(True)                           |
|          | 6.96±0.08ms          | 6.99±0.1ms          |    1    | aggregate_collapse.Aggregation.time_collapsed_by_RMS(False)                                 |
|          | 23.2±0.3ms           | 23.5±0.3ms          |    1.01 | aggregate_collapse.Aggregation.time_collapsed_by_RMS(True)                                  |
|          | 7.18±0.09ms          | 7.17±0.05ms         |    1    | aggregate_collapse.Aggregation.time_collapsed_by_STD_DEV(False)                             |
|          | 23.2±0.3ms           | 23.2±0.4ms          |    1    | aggregate_collapse.Aggregation.time_collapsed_by_STD_DEV(True)                              |
|          | 7.20±0.07ms          | 7.33±0.1ms          |    1.02 | aggregate_collapse.Aggregation.time_collapsed_by_VARIANCE(False)                            |
|          | 22.7±0.4ms           | 22.5±0.4ms          |    0.99 | aggregate_collapse.Aggregation.time_collapsed_by_VARIANCE(True)                             |
|          | 19.3±0.2ms           | 19.4±0.2ms          |    1    | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_MEAN(False)                     |
|          | 79.6±1ms             | 79.9±0.5ms          |    1    | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_MEAN(True)                      |
|          | 19.2±0.2ms           | 19.4±0.3ms          |    1.01 | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_RMS(False)                      |
|          | 90.6±1ms             | 90.2±1ms            |    0.99 | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_RMS(True)                       |
|          | 18.1±0.2ms           | 18.3±0.06ms         |    1.01 | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_SUM(False)                      |
|          | 52.9±0.6ms           | 52.5±0.5ms          |    0.99 | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_SUM(True)                       |
|          | 7.40±0.1ms           | 7.25±0.04ms         |    0.98 | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_MEAN(False)                      |
|          | 27.6±0.5ms           | 27.4±0.4ms          |    1    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_MEAN(True)                       |
|          | 7.11±0.03ms          | 7.16±0.1ms          |    1.01 | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_RMS(False)                       |
|          | 29.0±0.5ms           | 29.0±0.4ms          |    1    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_RMS(True)                        |
|          | 6.86±0.05ms          | 6.92±0.06ms         |    1.01 | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_SUM(False)                       |
|          | 22.9±0.3ms           | 23.2±0.3ms          |    1.02 | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_SUM(True)                        |
|          | 173±4ms              | 173±3ms             |    0.99 | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_WPERCENTILE(False)               |
|          | 264±4ms              | 259±4ms             |    0.98 | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_WPERCENTILE(True)                |
|          | 926±8μs              | 932±7μs             |    1.01 | cube.CubeCreation.time_create(False, 'construct')                                           |
|          | 323±3μs              | 332±4μs             |    1.03 | cube.CubeCreation.time_create(False, 'instantiate')                                         |
|          | 1.56±0.01ms          | 1.59±0.02ms         |    1.02 | cube.CubeCreation.time_create(True, 'construct')                                            |
|          | 1.11±0.01ms          | 1.13±0.02ms         |    1.01 | cube.CubeCreation.time_create(True, 'instantiate')                                          |
|          | 81.9±1ms             | 80.4±0.7ms          |    0.98 | cube.CubeEquality.time_equality(False, False, 'all_equal')                                  |
|          | 21.8±0.1ms           | 22.3±0.8ms          |    1.02 | cube.CubeEquality.time_equality(False, False, 'coord_inequality')                           |
|          | 93.8±2ms             | 92.7±2ms            |    0.99 | cube.CubeEquality.time_equality(False, False, 'data_inequality')                            |
|          | 15.0±0.1μs           | 15.4±0.1μs          |    1.03 | cube.CubeEquality.time_equality(False, False, 'metadata_inequality')                        |
|          | 83.3±1ms             | 82.1±2ms            |    0.99 | cube.CubeEquality.time_equality(False, True, 'all_equal')                                   |
|          | 24.7±2ms             | 24.2±0.4ms          |    0.98 | cube.CubeEquality.time_equality(False, True, 'coord_inequality')                            |
|          | 94.0±2ms             | 95.3±2ms            |    1.01 | cube.CubeEquality.time_equality(False, True, 'data_inequality')                             |
|          | 15.2±0.1μs           | 15.6±0.1μs          |    1.02 | cube.CubeEquality.time_equality(False, True, 'metadata_inequality')                         |
|          | 183±1ms              | 185±2ms             |    1.01 | cube.CubeEquality.time_equality(True, False, 'all_equal')                                   |
|          | 78.0±0.4ms           | 77.8±0.6ms          |    1    | cube.CubeEquality.time_equality(True, False, 'coord_inequality')                            |
|          | 209±2ms              | 211±2ms             |    1.01 | cube.CubeEquality.time_equality(True, False, 'data_inequality')                             |
|          | 41.6±0.2μs           | 42.5±0.3μs          |    1.02 | cube.CubeEquality.time_equality(True, False, 'metadata_inequality')                         |
|          | 277±4ms              | 282±3ms             |    1.02 | cube.CubeEquality.time_equality(True, True, 'all_equal')                                    |
|          | 168±2ms              | 172±3ms             |    1.02 | cube.CubeEquality.time_equality(True, True, 'coord_inequality')                             |
|          | 303±3ms              | 310±4ms             |    1.02 | cube.CubeEquality.time_equality(True, True, 'data_inequality')                              |
|          | 284±2μs              | 282±5μs             |    1    | cube.CubeEquality.time_equality(True, True, 'metadata_inequality')                          |
|          | 909±20μs             | 931±10μs            |    1.02 | import_iris.Iris.time__concatenate                                                          |
|          | 193±5μs              | 194±3μs             |    1.01 | import_iris.Iris.time__constraints                                                          |
|          | 104±0.9μs            | 106±4μs             |    1.01 | import_iris.Iris.time__data_manager                                                         |
|          | 66.9±0.9μs           | 71.8±3μs            |    1.07 | import_iris.Iris.time__deprecation                                                          |
|          | 139±4μs              | 138±3μs             |    0.99 | import_iris.Iris.time__lazy_data                                                            |
|          | 950±5μs              | 971±6μs             |    1.02 | import_iris.Iris.time__merge                                                                |
|          | 52.6±0.4μs           | 52.5±0.4μs          |    1    | import_iris.Iris.time__representation                                                       |
|          | 692±10μs             | 698±9μs             |    1.01 | import_iris.Iris.time_analysis                                                              |
|          | 116±1μs              | 117±2μs             |    1.01 | import_iris.Iris.time_analysis__area_weighted                                               |
|          | 72.5±2μs             | 71.9±0.7μs          |    0.99 | import_iris.Iris.time_analysis__grid_angles                                                 |
|          | 259±3μs              | 267±7μs             |    1.03 | import_iris.Iris.time_analysis__interpolation                                               |
|          | 184±4μs              | 189±2μs             |    1.03 | import_iris.Iris.time_analysis__regrid                                                      |
|          | 95.6±2μs             | 95.0±3μs            |    0.99 | import_iris.Iris.time_analysis__scipy_interpolate                                           |
|          | 99.7±0.9μs           | 99.0±1μs            |    0.99 | import_iris.Iris.time_analysis_calculus                                                     |
|          | 322±2μs              | 326±3μs             |    1.01 | import_iris.Iris.time_analysis_cartography                                                  |
|          | 60.4±1μs             | 61.4±0.6μs          |    1.02 | import_iris.Iris.time_analysis_geomerty                                                     |
|          | 192±2μs              | 199±6μs             |    1.03 | import_iris.Iris.time_analysis_maths                                                        |
|          | 60.8±1μs             | 60.1±0.4μs          |    0.99 | import_iris.Iris.time_analysis_stats                                                        |
|          | 162±1μs              | 160±3μs             |    0.99 | import_iris.Iris.time_analysis_trajectory                                                   |
|          | 367±5μs              | 368±5μs             |    1    | import_iris.Iris.time_aux_factory                                                           |
|          | 56.1±0.5μs           | 56.9±0.8μs          |    1.01 | import_iris.Iris.time_common                                                                |
|          | 164±5μs              | 161±2μs             |    0.98 | import_iris.Iris.time_common_lenient                                                        |
|          | 1.43±0.03ms          | 1.44±0.01ms         |    1.01 | import_iris.Iris.time_common_metadata                                                       |
|          | 175±6μs              | 174±1μs             |    0.99 | import_iris.Iris.time_common_mixin                                                          |
|          | 1.26±0ms             | 1.28±0.01ms         |    1.02 | import_iris.Iris.time_common_resolve                                                        |
|          | 186±2μs              | 185±3μs             |    0.99 | import_iris.Iris.time_config                                                                |
|          | 96.5±1μs             | 100.0±4μs           |    1.04 | import_iris.Iris.time_coord_categorisation                                                  |
|          | 433±4μs              | 433±5μs             |    1    | import_iris.Iris.time_coord_systems                                                         |
|          | 898±5μs              | 915±4μs             |    1.02 | import_iris.Iris.time_coords                                                                |
|          | 947±10μs             | 946±10μs            |    1    | import_iris.Iris.time_cube                                                                  |
|          | 238±4μs              | 238±2μs             |    1    | import_iris.Iris.time_exceptions                                                            |
|          | 52.5±0.3μs           | 52.9±0.2μs          |    1.01 | import_iris.Iris.time_experimental                                                          |
|          | 142±1μs              | 143±2μs             |    1    | import_iris.Iris.time_fileformats                                                           |
|          | 256±2μs              | 264±5μs             |    1.03 | import_iris.Iris.time_fileformats__ff                                                       |
|          | 2.63±0.01ms          | 2.67±0.03ms         |    1.02 | import_iris.Iris.time_fileformats__ff_cross_references                                      |
|          | 49.2±0.3μs           | 50.1±0.3μs          |    1.02 | import_iris.Iris.time_fileformats__pp_lbproc_pairs                                          |
|          | 89.7±2μs             | 93.4±2μs            |    1.04 | import_iris.Iris.time_fileformats_abf                                                       |
|          | 510±20μs             | 507±7μs             |    0.99 | import_iris.Iris.time_fileformats_cf                                                        |
|          | 5.07±0.05ms          | 5.16±0.1ms          |    1.02 | import_iris.Iris.time_fileformats_dot                                                       |
|          | 47.2±0.5μs           | 48.4±0.5μs          |    1.03 | import_iris.Iris.time_fileformats_name                                                      |
|          | 242±2μs              | 247±2μs             |    1.02 | import_iris.Iris.time_fileformats_name_loaders                                              |
|          | 87.8±2μs             | 87.7±2μs            |    1    | import_iris.Iris.time_fileformats_netcdf                                                    |
|          | 97.5±2μs             | 101±4μs             |    1.03 | import_iris.Iris.time_fileformats_nimrod                                                    |
|          | 173±6μs              | 179±6μs             |    1.03 | import_iris.Iris.time_fileformats_nimrod_load_rules                                         |
|          | 888±6μs              | 914±6μs             |    1.03 | import_iris.Iris.time_fileformats_pp                                                        |
|          | 140±2μs              | 141±3μs             |    1.01 | import_iris.Iris.time_fileformats_pp_load_rules                                             |
|          | 98.9±4μs             | 97.8±3μs            |    0.99 | import_iris.Iris.time_fileformats_pp_save_rules                                             |
|          | 536±10μs             | 552±5μs             |    1.03 | import_iris.Iris.time_fileformats_rules                                                     |
|          | 231±2μs              | 236±2μs             |    1.02 | import_iris.Iris.time_fileformats_structured_array_identification                           |
|          | 57.2±0.8μs           | 56.5±0.3μs          |    0.99 | import_iris.Iris.time_fileformats_um                                                        |
|          | 134±1μs              | 138±3μs             |    1.03 | import_iris.Iris.time_fileformats_um__fast_load                                             |
|          | 124±7μs              | 128±1μs             |    1.03 | import_iris.Iris.time_fileformats_um__fast_load_structured_fields                           |
|          | 47.6±0.1μs           | 47.9±0.4μs          |    1.01 | import_iris.Iris.time_fileformats_um__ff_replacement                                        |
|          | 51.0±0.6μs           | 52.3±0.5μs          |    1.03 | import_iris.Iris.time_fileformats_um__optimal_array_structuring                             |
|          | 970±9μs              | 991±6μs             |    1.02 | import_iris.Iris.time_fileformats_um_cf_map                                                 |
|          | 107±3μs              | 108±2μs             |    1.01 | import_iris.Iris.time_io                                                                    |
|          | 179±2μs              | 182±2μs             |    1.02 | import_iris.Iris.time_io_format_picker                                                      |
|          | 184±3μs              | 181±2μs             |    0.99 | import_iris.Iris.time_iris                                                                  |
|          | 104±2μs              | 106±0.9μs           |    1.02 | import_iris.Iris.time_iterate                                                               |
|          | 7.00±0.03ms          | 6.97±0.04ms         |    1    | import_iris.Iris.time_palette                                                               |
|          | 1.80±0.02ms          | 1.77±0.01ms         |    0.99 | import_iris.Iris.time_plot                                                                  |
|          | 194±3μs              | 194±2μs             |    1    | import_iris.Iris.time_quickplot                                                             |
|          | 2.19±0.04ms          | 2.23±0.03ms         |    1.02 | import_iris.Iris.time_std_names                                                             |
|          | 1.61±0.01ms          | 1.60±0ms            |    1    | import_iris.Iris.time_symbols                                                               |
|          | 42.3±2ms             | 41.6±1ms            |    0.98 | import_iris.Iris.time_tests                                                                 |
|          | 190±2μs              | 188±1μs             |    0.99 | import_iris.Iris.time_third_party_cartopy                                                   |
|          | 5.24±0.06ms          | 5.21±0.04ms         |    0.99 | import_iris.Iris.time_third_party_cf_units                                                  |
|          | 93.7±1μs             | 92.7±0.9μs          |    0.99 | import_iris.Iris.time_third_party_cftime                                                    |
|          | 2.75±0.03ms          | 2.71±0.01ms         |    0.99 | import_iris.Iris.time_third_party_matplotlib                                                |
|          | 548±20μs             | 550±10μs            |    1    | import_iris.Iris.time_third_party_numpy                                                     |
|          | 134±4μs              | 133±2μs             |    0.99 | import_iris.Iris.time_third_party_scipy                                                     |
|          | 78.9±2μs             | 80.8±0.5μs          |    1.02 | import_iris.Iris.time_time                                                                  |
|          | 876±4μs              | 883±6μs             |    1.01 | import_iris.Iris.time_util                                                                  |
|          | 78.5±1μs             | 78.2±0.3μs          |    1    | iterate.IZip.time_izip                                                                      |
|          | 9.16±0.08ms          | 9.25±0.1ms          |    1.01 | load.LoadAndRealise.time_load((1280, 960, 5), False, 'FF')                                  |
|          | 18.8±0.6ms           | 17.5±1ms            |    0.93 | load.LoadAndRealise.time_load((1280, 960, 5), False, 'NetCDF')                              |
|          | 9.23±0.04ms          | 9.41±0.2ms          |    1.02 | load.LoadAndRealise.time_load((1280, 960, 5), False, 'PP')                                  |
|          | 9.07±0.06ms          | 9.09±0.1ms          |    1    | load.LoadAndRealise.time_load((1280, 960, 5), True, 'FF')                                   |
|          | 15.1±0.06ms          | 15.4±0.4ms          |    1.02 | load.LoadAndRealise.time_load((1280, 960, 5), True, 'NetCDF')                               |
|          | 9.14±0.07ms          | 9.27±0.1ms          |    1.01 | load.LoadAndRealise.time_load((1280, 960, 5), True, 'PP')                                   |
|          | 1.36±0.01s           | 1.35±0.02s          |    0.99 | load.LoadAndRealise.time_load((2, 2, 1000), False, 'FF')                                    |
|          | 14.2±0.3ms           | 14.0±0.1ms          |    0.99 | load.LoadAndRealise.time_load((2, 2, 1000), False, 'NetCDF')                                |
|          | 1.37±0.02s           | 1.37±0.02s          |    1.01 | load.LoadAndRealise.time_load((2, 2, 1000), False, 'PP')                                    |
|          | 1.36±0.01s           | 1.36±0.01s          |    1    | load.LoadAndRealise.time_load((2, 2, 1000), True, 'FF')                                     |
|          | 14.2±0.4ms           | 14.4±0.5ms          |    1.01 | load.LoadAndRealise.time_load((2, 2, 1000), True, 'NetCDF')                                 |
|          | 1.38±0.02s           | 1.37±0.02s          |    0.99 | load.LoadAndRealise.time_load((2, 2, 1000), True, 'PP')                                     |
|          | 4.91±0.05ms          | 5.02±0.03ms         |    1.02 | load.LoadAndRealise.time_load((50, 50, 2), False, 'FF')                                     |
|          | 13.6±0.5ms           | 14.2±0.4ms          |    1.04 | load.LoadAndRealise.time_load((50, 50, 2), False, 'NetCDF')                                 |
|          | 4.81±0.03ms          | 4.79±0.05ms         |    0.99 | load.LoadAndRealise.time_load((50, 50, 2), False, 'PP')                                     |
|          | 4.83±0.03ms          | 4.84±0.08ms         |    1    | load.LoadAndRealise.time_load((50, 50, 2), True, 'FF')                                      |
|          | 13.7±0.2ms           | 14.0±0.2ms          |    1.02 | load.LoadAndRealise.time_load((50, 50, 2), True, 'NetCDF')                                  |
|          | 4.80±0.02ms          | 4.82±0.08ms         |    1    | load.LoadAndRealise.time_load((50, 50, 2), True, 'PP')                                      |
|          | 26.0±0.3ms           | 26.5±0.4ms          |    1.02 | load.LoadAndRealise.time_realise((1280, 960, 5), False, 'FF')                               |
|          | 24.7±0.3ms           | 24.8±0.3ms          |    1    | load.LoadAndRealise.time_realise((1280, 960, 5), False, 'NetCDF')                           |
|          | 12.9±1ms             | 11.6±1ms            |    0.9  | load.LoadAndRealise.time_realise((1280, 960, 5), False, 'PP')                               |
|          | 29.6±1ms             | 30.3±0.8ms          |    1.02 | load.LoadAndRealise.time_realise((1280, 960, 5), True, 'FF')                                |
|          | 102±1ms              | 102±0.6ms           |    1    | load.LoadAndRealise.time_realise((1280, 960, 5), True, 'NetCDF')                            |
|          | 29.5±1ms             | 30.1±1ms            |    1.02 | load.LoadAndRealise.time_realise((1280, 960, 5), True, 'PP')                                |
|          | 561±4ms              | 563±4ms             |    1    | load.LoadAndRealise.time_realise((2, 2, 1000), False, 'FF')                                 |
|          | 5.68±0.2ms           | 5.84±0.2ms          |    1.03 | load.LoadAndRealise.time_realise((2, 2, 1000), False, 'NetCDF')                             |
|          | 560±3ms              | 561±2ms             |    1    | load.LoadAndRealise.time_realise((2, 2, 1000), False, 'PP')                                 |
|          | 573±1ms              | 573±3ms             |    1    | load.LoadAndRealise.time_realise((2, 2, 1000), True, 'FF')                                  |
|          | 5.67±0.1ms           | 6.11±0.1ms          |    1.08 | load.LoadAndRealise.time_realise((2, 2, 1000), True, 'NetCDF')                              |
|          | 568±3ms              | 566±3ms             |    1    | load.LoadAndRealise.time_realise((2, 2, 1000), True, 'PP')                                  |
|          | 2.03±0.1ms           | 2.12±0.09ms         |    1.05 | load.LoadAndRealise.time_realise((50, 50, 2), False, 'FF')                                  |
|          | 5.88±0.2ms           | 5.74±0.2ms          |    0.98 | load.LoadAndRealise.time_realise((50, 50, 2), False, 'NetCDF')                              |
|          | 1.98±0.03ms          | 2.08±0.06ms         |    1.05 | load.LoadAndRealise.time_realise((50, 50, 2), False, 'PP')                                  |
|          | 2.04±0.06ms          | 2.05±0.05ms         |    1.01 | load.LoadAndRealise.time_realise((50, 50, 2), True, 'FF')                                   |
|          | 5.61±0.1ms           | 5.97±0.1ms          |    1.07 | load.LoadAndRealise.time_realise((50, 50, 2), True, 'NetCDF')                               |
|          | 2.06±0.05ms          | 2.04±0.06ms         |    0.99 | load.LoadAndRealise.time_realise((50, 50, 2), True, 'PP')                                   |
|          | 312±2ms              | 321±2ms             |    1.03 | load.ManyCubes.time_many_cube_load                                                          |
|          | 86.8±0.4ms           | 85.1±0.3ms          |    0.98 | load.ManyVars.time_many_var_load                                                            |
|          | 9.13±0.08ms          | 9.15±0.1ms          |    1    | load.STASHConstraint.time_stash_constraint((1280, 960, 5), 'FF')                            |
|          | 9.27±0.08ms          | 9.27±0.1ms          |    1    | load.STASHConstraint.time_stash_constraint((1280, 960, 5), 'PP')                            |
|          | 1.36±0.01s           | 1.36±0.01s          |    1    | load.STASHConstraint.time_stash_constraint((2, 2, 1000), 'FF')                              |
|          | 1.38±0.02s           | 1.40±0.01s          |    1.01 | load.STASHConstraint.time_stash_constraint((2, 2, 1000), 'PP')                              |
|          | 4.90±0.02ms          | 4.97±0.08ms         |    1.02 | load.STASHConstraint.time_stash_constraint((2, 2, 2), 'FF')                                 |
|          | 4.85±0.03ms          | 4.92±0.05ms         |    1.01 | load.STASHConstraint.time_stash_constraint((2, 2, 2), 'PP')                                 |
|          | 8.28±0.06ms          | 8.34±0.1ms          |    1.01 | load.StructuredFF.time_structured_load((1280, 960, 5), False)                               |
|          | 5.22±0.02ms          | 5.22±0.08ms         |    1    | load.StructuredFF.time_structured_load((1280, 960, 5), True)                                |
|          | 1.34±0.01s           | 1.35±0.01s          |    1.01 | load.StructuredFF.time_structured_load((2, 2, 1000), False)                                 |
|          | 382±6ms              | 378±4ms             |    0.99 | load.StructuredFF.time_structured_load((2, 2, 1000), True)                                  |
|          | 4.08±0.02ms          | 4.08±0.02ms         |    1    | load.StructuredFF.time_structured_load((2, 2, 2), False)                                    |
|          | 3.99±0.05ms          | 4.00±0.03ms         |    1    | load.StructuredFF.time_structured_load((2, 2, 2), True)                                     |
|          | 142±3ms              | 140±3ms             |    0.99 | load.TimeConstraint.time_time_constraint(20, 'FF')                                          |
|          | 16.7±0.2ms           | 16.5±0.2ms          |    0.99 | load.TimeConstraint.time_time_constraint(20, 'NetCDF')                                      |
|          | 143±1ms              | 142±2ms             |    0.99 | load.TimeConstraint.time_time_constraint(20, 'PP')                                          |
|          | 28.7±0.4ms           | 28.6±0.1ms          |    1    | load.TimeConstraint.time_time_constraint(3, 'FF')                                           |
|          | 16.4±0.3ms           | 16.4±0.3ms          |    0.99 | load.TimeConstraint.time_time_constraint(3, 'NetCDF')                                       |
|          | 28.8±0.3ms           | 28.7±0.2ms          |    0.99 | load.TimeConstraint.time_time_constraint(3, 'PP')                                           |
|          | 21.0±0.6ms           | 20.7±0.3ms          |    0.98 | load.ugrid.BasicLoading.time_load_file(1)                                                   |
|          | 54.5±0.6ms           | 54.1±0.9ms          |    0.99 | load.ugrid.BasicLoading.time_load_file(200000)                                              |
|          | 11.1±0.2ms           | 11.3±0.5ms          |    1.02 | load.ugrid.BasicLoading.time_load_mesh(1)                                                   |
|          | 21.4±0.2ms           | 21.6±0.3ms          |    1.01 | load.ugrid.BasicLoading.time_load_mesh(200000)                                              |
|          | 20.7±0.6ms           | 21.0±0.4ms          |    1.01 | load.ugrid.BasicLoadingTime.time_load_file(1)                                               |
|          | 20.5±0.5ms           | 21.2±0.3ms          |    1.03 | load.ugrid.BasicLoadingTime.time_load_file(200000)                                          |
|          | 11.0±0.2ms           | 11.3±0.3ms          |    1.02 | load.ugrid.BasicLoadingTime.time_load_mesh(1)                                               |
|          | 13.9±0.3ms           | 14.7±0.6ms          |    1.06 | load.ugrid.BasicLoadingTime.time_load_mesh(200000)                                          |
|          | 22.4±0.5ms           | 22.5±0.7ms          |    1    | load.ugrid.Callback.time_load_file_callback(1)                                              |
|          | 63.8±1ms             | 64.8±0.9ms          |    1.02 | load.ugrid.Callback.time_load_file_callback(200000)                                         |
|          | 22.4±0.4ms           | 22.6±0.4ms          |    1.01 | load.ugrid.CallbackTime.time_load_file_callback(1)                                          |
|          | 24.1±0.3ms           | 24.1±1ms            |    1    | load.ugrid.CallbackTime.time_load_file_callback(200000)                                     |
|          | 6.00±0.2ms           | 6.10±0.2ms          |    1.02 | load.ugrid.DataRealisation.time_realise_data(10000)                                         |
|          | 8.92±0.2ms           | 8.89±0.2ms          |    1    | load.ugrid.DataRealisation.time_realise_data(200000)                                        |
|          | 44.7±3ms             | 45.8±2ms            |    1.02 | load.ugrid.DataRealisationTime.time_realise_data(10000)                                     |
|          | 887±7ms              | 888±7ms             |    1    | load.ugrid.DataRealisationTime.time_realise_data(200000)                                    |
|          | 1.28±0.02s           | 1.26±0.01s          |    0.98 | merge_concat.Concatenate.time_concatenate(False)                                            |
|          | 409±20ms             | 407±20ms            |    1    | merge_concat.Concatenate.time_concatenate(True)                                             |
|          | 2.43±0.01G           | 2.43±0.01G          |    1    | merge_concat.Concatenate.tracemalloc_concatenate(False)                                     |
|          | 120±6M               | 120±6M              |    1    | merge_concat.Concatenate.tracemalloc_concatenate(True)                                      |
|          | 30.3±2ms             | 27.1±2ms            |    0.89 | merge_concat.Merge.time_merge                                                               |
|          | 126±0.03M            | 126±0.03M           |    1    | merge_concat.Merge.tracemalloc_merge                                                        |
|          | 372±3ns              | 365±3ns             |    0.98 | mesh.utils.regions_combine.CombineRegionsComputeRealData.time_compute_data(50)              |
|          | 201±2ms              | 203±3ms             |    1.01 | mesh.utils.regions_combine.CombineRegionsComputeRealData.time_compute_data(500)             |
|          | 771±0.6k             | 771±0.6k            |    1    | mesh.utils.regions_combine.CombineRegionsComputeRealData.tracemalloc_compute_data(50)       |
|          | 60.2±0M              | 60.2±0M             |    1    | mesh.utils.regions_combine.CombineRegionsComputeRealData.tracemalloc_compute_data(500)      |
|          | 18.1±0.1ms           | 17.7±0.3ms          |    0.98 | mesh.utils.regions_combine.CombineRegionsCreateCube.time_create_combined_cube(50)           |
|          | 20.7±0.2ms           | 21.3±0.6ms          |    1.03 | mesh.utils.regions_combine.CombineRegionsCreateCube.time_create_combined_cube(500)          |
|          | 1.24±0M              | 1.23±0M             |    1    | mesh.utils.regions_combine.CombineRegionsCreateCube.tracemalloc_create_combined_cube(50)    |
|          | 25±0M                | 25±0.01M            |    1    | mesh.utils.regions_combine.CombineRegionsCreateCube.tracemalloc_create_combined_cube(500)   |
|          | 175±2ms              | 176±2ms             |    1.01 | mesh.utils.regions_combine.CombineRegionsFileStreamedCalc.time_stream_file2file(50)         |
|          | 645±5ms              | 648±5ms             |    1    | mesh.utils.regions_combine.CombineRegionsFileStreamedCalc.time_stream_file2file(500)        |
|          | 1.6±0.04M            | 1.64±0.03M          |    1.03 | mesh.utils.regions_combine.CombineRegionsFileStreamedCalc.tracemalloc_stream_file2file(50)  |
|          | 96.7±0.03M           | 96.7±0.03M          |    1    | mesh.utils.regions_combine.CombineRegionsFileStreamedCalc.tracemalloc_stream_file2file(500) |
|          | 122±3ms              | 122±0.7ms           |    1    | mesh.utils.regions_combine.CombineRegionsSaveData.time_save(50)                             |
|          | 587±3ms              | 591±3ms             |    1.01 | mesh.utils.regions_combine.CombineRegionsSaveData.time_save(500)                            |
|          | 1.51±0.02M           | 1.51±0.01M          |    1    | mesh.utils.regions_combine.CombineRegionsSaveData.tracemalloc_save(50)                      |
|          | 96.5±0.03M           | 96.5±0.03M          |    1    | mesh.utils.regions_combine.CombineRegionsSaveData.tracemalloc_save(500)                     |
|          | 2.1752849999999997   | 2.1752849999999997  |    1    | mesh.utils.regions_combine.CombineRegionsSaveData.track_filesize_saved(50)                  |
|          | 216.01528499999998   | 216.01528499999998  |    1    | mesh.utils.regions_combine.CombineRegionsSaveData.track_filesize_saved(500)                 |
|          | 6.76±0.1ms           | 6.62±0.03ms         |    0.98 | plot.AuxSort.time_aux_sort                                                                  |
|          | 79.3±4ms             | 78.5±5ms            |    0.99 | regridding.CurvilinearRegridding.time_regrid_pic                                            |
|          | 136±3M               | 136±3M              |    1    | regridding.CurvilinearRegridding.tracemalloc_regrid_pic                                     |
|          | 105±8ms              | 105±8ms             |    1    | regridding.HorizontalChunkedRegridding.time_regrid_area_w                                   |
|          | 64.3±0.6ms           | 64.4±0.4ms          |    1    | regridding.HorizontalChunkedRegridding.time_regrid_area_w_new_grid                          |
|          | 107±0.4M             | 107±0.3M            |    1    | regridding.HorizontalChunkedRegridding.tracemalloc_regrid_area_w                            |
|          | 147±0.04M            | 147±0.04M           |    1    | regridding.HorizontalChunkedRegridding.tracemalloc_regrid_area_w_new_grid                   |
|          | 7.11±0.1ms           | 7.06±0.07ms         |    0.99 | save.NetcdfSave.time_netcdf_save_cube(50, False)                                            |
|          | 122±1ms              | 121±1ms             |    0.99 | save.NetcdfSave.time_netcdf_save_cube(50, True)                                             |
|          | 46.0±0.5ms           | 45.8±0.5ms          |    0.99 | save.NetcdfSave.time_netcdf_save_cube(600, False)                                           |
|          | 510±5ms              | 509±4ms             |    1    | save.NetcdfSave.time_netcdf_save_cube(600, True)                                            |
|          | 90.9±1ns             | 91.0±1ns            |    1    | save.NetcdfSave.time_netcdf_save_mesh(50, False)                                            |
|          | 103±0.4ms            | 102±0.8ms           |    1    | save.NetcdfSave.time_netcdf_save_mesh(50, True)                                             |
|          | 90.9±0.5ns           | 90.9±0.4ns          |    1    | save.NetcdfSave.time_netcdf_save_mesh(600, False)                                           |
|          | 448±2ms              | 449±3ms             |    1    | save.NetcdfSave.time_netcdf_save_mesh(600, True)                                            |
|          | 30.6±0.4k            | 30.6±0.4k           |    1    | save.NetcdfSave.tracemalloc_netcdf_save(50, False)                                          |
|          | 1.87±0.2M            | 1.91±0.1M           |    1.02 | save.NetcdfSave.tracemalloc_netcdf_save(50, True)                                           |
|          | 30.5±0.4k            | 30.5±0.3k           |    1    | save.NetcdfSave.tracemalloc_netcdf_save(600, False)                                         |
|          | 225±20M              | 225±20M             |    1    | save.NetcdfSave.tracemalloc_netcdf_save(600, True)                                          |
|          | 37.6±0.9ms           | 37.1±0.4ms          |    0.99 | stats.PearsonR.time_lazy                                                                    |
|          | 8.53±0.1ms           | 8.84±0.1ms          |    1.04 | stats.PearsonR.time_real                                                                    |
|          | 30.6±2M              | 30.9±1M             |    1.01 | stats.PearsonR.tracemalloc_lazy                                                             |
|          | 18.3±0M              | 18.3±0M             |    1    | stats.PearsonR.tracemalloc_real                                                             |
|          | 27.0±0.7ms           | 26.4±0.8ms          |    0.98 | trajectory.TrajectoryInterpolation.time_trajectory_linear                                   |
|          | 61.7±1ms             | 61.8±1ms            |    1    | trajectory.TrajectoryInterpolation.time_trajectory_nearest                                  |
|          | 17.6±0.04M           | 17.6±0.04M          |    1    | trajectory.TrajectoryInterpolation.tracemalloc_trajectory_linear                            |
|          | 7.77±0.05M           | 7.77±0.05M          |    1    | trajectory.TrajectoryInterpolation.tracemalloc_trajectory_nearest                           |

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