Performance Shift(s): 9ee671c9

[github-actions]

Benchmark comparison has identified performance shifts at:

• commit 9ee671c (Add type hints to iris.cube.Cube #6037).

Please review the report below and take corrective/congratulatory action as appropriate :slightly_smiling_face:

⏱️ Performance Benchmark Report: 9ee671c

Performance shifts

| Change   | Before [2acfd928] <main~1>   | After [9ee671c9] <main>   |   Ratio | Benchmark (Parameter)          |
|----------|------------------------------|---------------------------|---------|--------------------------------|
| +        | 485±4μs                      | 598±4μs                   |    1.23 | import_iris.Iris.time_analysis |

Full benchmark results

Benchmarks that have stayed the same:

| Change   | Before [2acfd928] <main~1>   | After [9ee671c9] <main>   | Ratio   | Benchmark (Parameter)                                                                       |
|----------|------------------------------|---------------------------|---------|---------------------------------------------------------------------------------------------|
|          | 60.8±1ms                     | 60.0±1ms                  | 0.99    | aggregate_collapse.Aggregation.time_aggregated_by_COUNT(False)                              |
|          | 61.1±1ms                     | 61.2±0.9ms                | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_COUNT(True)                               |
|          | 216±5ms                      | 212±3ms                   | 0.98    | aggregate_collapse.Aggregation.time_aggregated_by_FAST_PERCENTILE(False)                    |
|          | 214±2ms                      | 212±3ms                   | 0.99    | aggregate_collapse.Aggregation.time_aggregated_by_FAST_PERCENTILE(True)                     |
|          | 38.3±0.5ms                   | 38.5±0.7ms                | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_GMEAN(False)                              |
|          | 40.0±1ms                     | 39.5±1ms                  | 0.99    | aggregate_collapse.Aggregation.time_aggregated_by_GMEAN(True)                               |
|          | 38.4±0.8ms                   | 38.5±0.3ms                | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_HMEAN(False)                              |
|          | 40.1±0.6ms                   | 39.2±0.7ms                | 0.98    | aggregate_collapse.Aggregation.time_aggregated_by_HMEAN(True)                               |
|          | 51.9±1ms                     | 51.0±0.5ms                | 0.98    | aggregate_collapse.Aggregation.time_aggregated_by_MAX(False)                                |
|          | 52.2±0.4ms                   | 52.4±0.7ms                | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_MAX(True)                                 |
|          | 137±1ms                      | 137±2ms                   | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_MAX_RUN(False)                            |
|          | 140±2ms                      | 137±1ms                   | 0.98    | aggregate_collapse.Aggregation.time_aggregated_by_MAX_RUN(True)                             |
|          | 57.2±0.7ms                   | 57.0±0.6ms                | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_MEAN(False)                               |
|          | 57.7±1ms                     | 57.8±0.9ms                | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_MEAN(True)                                |
|          | 38.8±0.8ms                   | 38.4±0.9ms                | 0.99    | aggregate_collapse.Aggregation.time_aggregated_by_MEDIAN(False)                             |
|          | 38.8±1ms                     | 39.5±1ms                  | 1.02    | aggregate_collapse.Aggregation.time_aggregated_by_MEDIAN(True)                              |
|          | 52.1±0.8ms                   | 51.4±0.9ms                | 0.99    | aggregate_collapse.Aggregation.time_aggregated_by_MIN(False)                                |
|          | 52.8±1ms                     | 52.5±0.7ms                | 0.99    | aggregate_collapse.Aggregation.time_aggregated_by_MIN(True)                                 |
|          | 1.36±0.01s                   | 1.35±0.01s                | 0.99    | aggregate_collapse.Aggregation.time_aggregated_by_PEAK(False)                               |
|          | 1.37±0.01s                   | 1.36±0.01s                | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_PEAK(True)                                |
|          | 695±10ms                     | 710±10ms                  | 1.02    | aggregate_collapse.Aggregation.time_aggregated_by_PERCENTILE(False)                         |
|          | 701±8ms                      | 701±9ms                   | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_PERCENTILE(True)                          |
|          | 36.6±0.5ms                   | 36.8±0.5ms                | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_PROPORTION(False)                         |
|          | 37.4±0.4ms                   | 37.7±0.5ms                | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_PROPORTION(True)                          |
|          | 69.8±2ms                     | 70.8±1ms                  | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_RMS(False)                                |
|          | 70.6±1ms                     | 70.3±0.6ms                | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_RMS(True)                                 |
|          | 72.5±0.8ms                   | 72.3±1ms                  | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_STD_DEV(False)                            |
|          | 72.6±0.9ms                   | 73.3±1ms                  | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_STD_DEV(True)                             |
|          | 66.8±0.7ms                   | 67.1±0.7ms                | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_VARIANCE(False)                           |
|          | 67.3±0.8ms                   | 67.3±0.7ms                | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_VARIANCE(True)                            |
|          | 20.9±0.7ms                   | 20.6±0.5ms                | 0.99    | aggregate_collapse.Aggregation.time_collapsed_by_COUNT(False)                               |
|          | 24.9±0.3ms                   | 24.7±0.8ms                | 0.99    | aggregate_collapse.Aggregation.time_collapsed_by_COUNT(True)                                |
|          | 144±2ms                      | 143±2ms                   | 0.99    | aggregate_collapse.Aggregation.time_collapsed_by_FAST_PERCENTILE(False)                     |
|          | 158±2ms                      | 158±2ms                   | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_FAST_PERCENTILE(True)                      |
|          | 18.6±0.4ms                   | 18.7±0.6ms                | 1.01    | aggregate_collapse.Aggregation.time_collapsed_by_GMEAN(False)                               |
|          | 23.3±0.5ms                   | 23.1±0.7ms                | 0.99    | aggregate_collapse.Aggregation.time_collapsed_by_GMEAN(True)                                |
|          | 18.9±0.4ms                   | 18.5±0.4ms                | 0.98    | aggregate_collapse.Aggregation.time_collapsed_by_HMEAN(False)                               |
|          | 23.0±0.4ms                   | 22.9±0.6ms                | 0.99    | aggregate_collapse.Aggregation.time_collapsed_by_HMEAN(True)                                |
|          | 19.6±1ms                     | 19.2±0.7ms                | 0.98    | aggregate_collapse.Aggregation.time_collapsed_by_MAX(False)                                 |
|          | 23.3±0.3ms                   | 23.5±0.8ms                | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_MAX(True)                                  |
|          | 37.2±0.8ms                   | 37.3±1ms                  | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_MAX_RUN(False)                             |
|          | 41.8±0.7ms                   | 41.1±1ms                  | 0.98    | aggregate_collapse.Aggregation.time_collapsed_by_MAX_RUN(True)                              |
|          | 20.2±0.4ms                   | 20.0±0.5ms                | 0.99    | aggregate_collapse.Aggregation.time_collapsed_by_MEAN(False)                                |
|          | 24.1±0.4ms                   | 24.2±0.4ms                | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_MEAN(True)                                 |
|          | 19.4±0.4ms                   | 19.3±0.4ms                | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_MEDIAN(False)                              |
|          | 24.1±1ms                     | 23.9±0.5ms                | 0.99    | aggregate_collapse.Aggregation.time_collapsed_by_MEDIAN(True)                               |
|          | 19.6±0.5ms                   | 19.3±0.5ms                | 0.99    | aggregate_collapse.Aggregation.time_collapsed_by_MIN(False)                                 |
|          | 24.1±0.3ms                   | 23.6±0.4ms                | 0.98    | aggregate_collapse.Aggregation.time_collapsed_by_MIN(True)                                  |
|          | 577±0.9ms                    | 578±3ms                   | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_PEAK(False)                                |
|          | 581±5ms                      | 586±5ms                   | 1.01    | aggregate_collapse.Aggregation.time_collapsed_by_PEAK(True)                                 |
|          | 165±3ms                      | 162±3ms                   | 0.98    | aggregate_collapse.Aggregation.time_collapsed_by_PERCENTILE(False)                          |
|          | 184±5ms                      | 181±2ms                   | 0.99    | aggregate_collapse.Aggregation.time_collapsed_by_PERCENTILE(True)                           |
|          | 18.6±0.3ms                   | 18.5±0.7ms                | 0.99    | aggregate_collapse.Aggregation.time_collapsed_by_PROPORTION(False)                          |
|          | 22.9±0.5ms                   | 22.7±0.3ms                | 0.99    | aggregate_collapse.Aggregation.time_collapsed_by_PROPORTION(True)                           |
|          | 22.6±0.7ms                   | 22.6±0.5ms                | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_RMS(False)                                 |
|          | 26.9±0.6ms                   | 26.5±0.5ms                | 0.99    | aggregate_collapse.Aggregation.time_collapsed_by_RMS(True)                                  |
|          | 22.0±0.3ms                   | 22.1±0.4ms                | 1.01    | aggregate_collapse.Aggregation.time_collapsed_by_STD_DEV(False)                             |
|          | 26.4±0.3ms                   | 26.3±0.5ms                | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_STD_DEV(True)                              |
|          | 21.2±0.4ms                   | 21.6±0.3ms                | 1.02    | aggregate_collapse.Aggregation.time_collapsed_by_VARIANCE(False)                            |
|          | 25.8±0.4ms                   | 26.3±0.5ms                | 1.02    | aggregate_collapse.Aggregation.time_collapsed_by_VARIANCE(True)                             |
|          | 94.4±1ms                     | 94.6±0.8ms                | 1.00    | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_MEAN(False)                     |
|          | 94.9±1ms                     | 95.8±1ms                  | 1.01    | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_MEAN(True)                      |
|          | 107±0.8ms                    | 109±1ms                   | 1.01    | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_RMS(False)                      |
|          | 109±2ms                      | 110±1ms                   | 1.01    | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_RMS(True)                       |
|          | 64.5±0.6ms                   | 64.0±1ms                  | 0.99    | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_SUM(False)                      |
|          | 65.2±0.8ms                   | 65.2±1ms                  | 1.00    | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_SUM(True)                       |
|          | 30.8±0.4ms                   | 30.8±0.7ms                | 1.00    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_MEAN(False)                      |
|          | 35.2±0.5ms                   | 35.3±0.8ms                | 1.00    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_MEAN(True)                       |
|          | 32.8±0.8ms                   | 33.2±0.5ms                | 1.01    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_RMS(False)                       |
|          | 36.7±0.6ms                   | 37.2±0.6ms                | 1.01    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_RMS(True)                        |
|          | 26.3±0.4ms                   | 26.8±0.6ms                | 1.02    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_SUM(False)                       |
|          | 30.3±0.4ms                   | 30.4±0.5ms                | 1.00    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_SUM(True)                        |
|          | 339±3ms                      | 338±3ms                   | 1.00    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_WPERCENTILE(False)               |
|          | 356±3ms                      | 366±3ms                   | 1.03    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_WPERCENTILE(True)                |
|          | 1.12±0.01ms                  | 1.12±0.01ms               | 1.00    | cube.CubeCreation.time_create(False, 'construct')                                           |
|          | 411±6μs                      | 405±2μs                   | 0.98    | cube.CubeCreation.time_create(False, 'instantiate')                                         |
|          | 963±20μs                     | 947±10μs                  | 0.98    | cube.CubeCreation.time_create(True, 'construct')                                            |
|          | 569±3μs                      | 583±5μs                   | 1.02    | cube.CubeCreation.time_create(True, 'instantiate')                                          |
|          | 235±2ms                      | 240±5ms                   | 1.02    | cube.CubeEquality.time_equality(False, False, 'all_equal')                                  |
|          | 122±1ms                      | 123±1ms                   | 1.01    | cube.CubeEquality.time_equality(False, False, 'coord_inequality')                           |
|          | 247±2ms                      | 247±2ms                   | 1.00    | cube.CubeEquality.time_equality(False, False, 'data_inequality')                            |
|          | 16.9±0.2μs                   | 16.9±0.2μs                | 1.00    | cube.CubeEquality.time_equality(False, False, 'metadata_inequality')                        |
|          | 330±3ms                      | 339±5ms                   | 1.03    | cube.CubeEquality.time_equality(False, True, 'all_equal')                                   |
|          | 221±3ms                      | 222±2ms                   | 1.01    | cube.CubeEquality.time_equality(False, True, 'coord_inequality')                            |
|          | 340±3ms                      | 345±8ms                   | 1.01    | cube.CubeEquality.time_equality(False, True, 'data_inequality')                             |
|          | 16.9±0.3μs                   | 17.0±0.2μs                | 1.00    | cube.CubeEquality.time_equality(False, True, 'metadata_inequality')                         |
|          | 237±4ms                      | 241±3ms                   | 1.02    | cube.CubeEquality.time_equality(True, False, 'all_equal')                                   |
|          | 123±2ms                      | 125±1ms                   | 1.01    | cube.CubeEquality.time_equality(True, False, 'coord_inequality')                            |
|          | 247±2ms                      | 253±4ms                   | 1.02    | cube.CubeEquality.time_equality(True, False, 'data_inequality')                             |
|          | 53.4±0.4μs                   | 54.7±0.4μs                | 1.02    | cube.CubeEquality.time_equality(True, False, 'metadata_inequality')                         |
|          | 331±3ms                      | 336±6ms                   | 1.01    | cube.CubeEquality.time_equality(True, True, 'all_equal')                                    |
|          | 220±4ms                      | 220±3ms                   | 1.00    | cube.CubeEquality.time_equality(True, True, 'coord_inequality')                             |
|          | 343±2ms                      | 342±6ms                   | 1.00    | cube.CubeEquality.time_equality(True, True, 'data_inequality')                              |
|          | 55.2±0.6μs                   | 55.9±0.5μs                | 1.01    | cube.CubeEquality.time_equality(True, True, 'metadata_inequality')                          |
|          | 787±6μs                      | 786±9μs                   | 1.00    | import_iris.Iris.time__concatenate                                                          |
|          | 182±3μs                      | 186±4μs                   | 1.02    | import_iris.Iris.time__constraints                                                          |
|          | 111±2μs                      | 113±2μs                   | 1.02    | import_iris.Iris.time__data_manager                                                         |
|          | 94.2±0.4μs                   | 94.7±0.8μs                | 1.01    | import_iris.Iris.time__deprecation                                                          |
|          | 139±2μs                      | 140±1μs                   | 1.01    | import_iris.Iris.time__lazy_data                                                            |
|          | 905±7μs                      | 909±7μs                   | 1.00    | import_iris.Iris.time__merge                                                                |
|          | 76.8±0.4μs                   | 77.2±0.9μs                | 1.01    | import_iris.Iris.time__representation                                                       |
|          | 140±1μs                      | 140±1μs                   | 1.00    | import_iris.Iris.time_analysis__area_weighted                                               |
|          | 111±1μs                      | 110±1μs                   | 1.00    | import_iris.Iris.time_analysis__grid_angles                                                 |
|          | 243±2μs                      | 249±5μs                   | 1.02    | import_iris.Iris.time_analysis__interpolation                                               |
|          | 187±2μs                      | 188±5μs                   | 1.01    | import_iris.Iris.time_analysis__regrid                                                      |
|          | 112±1μs                      | 112±0.8μs                 | 1.00    | import_iris.Iris.time_analysis__scipy_interpolate                                           |
|          | 142±1μs                      | 143±1μs                   | 1.01    | import_iris.Iris.time_analysis_calculus                                                     |
|          | 332±3μs                      | 333±3μs                   | 1.00    | import_iris.Iris.time_analysis_cartography                                                  |
|          | 94.1±0.7μs                   | 94.5±1μs                  | 1.00    | import_iris.Iris.time_analysis_geomerty                                                     |
|          | 220±3μs                      | 219±2μs                   | 0.99    | import_iris.Iris.time_analysis_maths                                                        |
|          | 98.2±2μs                     | 98.5±2μs                  | 1.00    | import_iris.Iris.time_analysis_stats                                                        |
|          | 176±2μs                      | 176±2μs                   | 1.00    | import_iris.Iris.time_analysis_trajectory                                                   |
|          | 312±7μs                      | 323±6μs                   | 1.03    | import_iris.Iris.time_aux_factory                                                           |
|          | 84.4±0.9μs                   | 84.3±0.5μs                | 1.00    | import_iris.Iris.time_common                                                                |
|          | 163±2μs                      | 163±2μs                   | 1.00    | import_iris.Iris.time_common_lenient                                                        |
|          | 1.34±0.01ms                  | 1.34±0.02ms               | 1.00    | import_iris.Iris.time_common_metadata                                                       |
|          | 133±0.7μs                    | 137±3μs                   | 1.03    | import_iris.Iris.time_common_mixin                                                          |
|          | 1.20±0ms                     | 1.20±0.01ms               | 1.00    | import_iris.Iris.time_common_resolve                                                        |
|          | 199±1μs                      | 203±5μs                   | 1.02    | import_iris.Iris.time_config                                                                |
|          | 126±2μs                      | 125±1μs                   | 0.99    | import_iris.Iris.time_coord_categorisation                                                  |
|          | 370±5μs                      | 369±3μs                   | 1.00    | import_iris.Iris.time_coord_systems                                                         |
|          | 756±3μs                      | 759±7μs                   | 1.00    | import_iris.Iris.time_coords                                                                |
|          | 678±5μs                      | 677±20μs                  | 1.00    | import_iris.Iris.time_cube                                                                  |
|          | 225±3μs                      | 225±2μs                   | 1.00    | import_iris.Iris.time_exceptions                                                            |
|          | 77.1±0.5μs                   | 77.0±0.8μs                | 1.00    | import_iris.Iris.time_experimental                                                          |
|          | 187±1μs                      | 188±0.9μs                 | 1.00    | import_iris.Iris.time_fileformats                                                           |
|          | 256±4μs                      | 254±3μs                   | 0.99    | import_iris.Iris.time_fileformats__ff                                                       |
|          | 2.74±0.02ms                  | 2.75±0.08ms               | 1.00    | import_iris.Iris.time_fileformats__ff_cross_references                                      |
|          | 79.2±0.3μs                   | 79.4±0.6μs                | 1.00    | import_iris.Iris.time_fileformats__pp_lbproc_pairs                                          |
|          | 114±0.5μs                    | 115±1μs                   | 1.01    | import_iris.Iris.time_fileformats_abf                                                       |
|          | 415±4μs                      | 414±4μs                   | 1.00    | import_iris.Iris.time_fileformats_cf                                                        |
|          | 5.34±0.05ms                  | 5.39±0.06ms               | 1.01    | import_iris.Iris.time_fileformats_dot                                                       |
|          | 74.7±0.5μs                   | 74.8±0.4μs                | 1.00    | import_iris.Iris.time_fileformats_name                                                      |
|          | 264±4μs                      | 258±7μs                   | 0.98    | import_iris.Iris.time_fileformats_name_loaders                                              |
|          | 121±1μs                      | 120±1μs                   | 1.00    | import_iris.Iris.time_fileformats_netcdf                                                    |
|          | 123±0.5μs                    | 124±1μs                   | 1.00    | import_iris.Iris.time_fileformats_nimrod                                                    |
|          | 212±2μs                      | 212±4μs                   | 1.00    | import_iris.Iris.time_fileformats_nimrod_load_rules                                         |
|          | 791±4μs                      | 788±5μs                   | 1.00    | import_iris.Iris.time_fileformats_pp                                                        |
|          | 185±2μs                      | 185±2μs                   | 1.00    | import_iris.Iris.time_fileformats_pp_load_rules                                             |
|          | 135±2μs                      | 134±1μs                   | 0.99    | import_iris.Iris.time_fileformats_pp_save_rules                                             |
|          | 532±10μs                     | 520±3μs                   | 0.98    | import_iris.Iris.time_fileformats_rules                                                     |
|          | 226±3μs                      | 222±2μs                   | 0.98    | import_iris.Iris.time_fileformats_structured_array_identification                           |
|          | 83.4±1μs                     | 84.2±0.8μs                | 1.01    | import_iris.Iris.time_fileformats_um                                                        |
|          | 164±2μs                      | 161±1μs                   | 0.98    | import_iris.Iris.time_fileformats_um__fast_load                                             |
|          | 138±0.8μs                    | 141±4μs                   | 1.02    | import_iris.Iris.time_fileformats_um__fast_load_structured_fields                           |
|          | 76.7±0.3μs                   | 77.4±0.8μs                | 1.01    | import_iris.Iris.time_fileformats_um__ff_replacement                                        |
|          | 82.9±0.4μs                   | 83.9±0.6μs                | 1.01    | import_iris.Iris.time_fileformats_um__optimal_array_structuring                             |
|          | 988±7μs                      | 992±20μs                  | 1.00    | import_iris.Iris.time_fileformats_um_cf_map                                                 |
|          | 138±1μs                      | 137±0.6μs                 | 0.99    | import_iris.Iris.time_io                                                                    |
|          | 176±1μs                      | 175±3μs                   | 0.99    | import_iris.Iris.time_io_format_picker                                                      |
|          | 229±2μs                      | 229±2μs                   | 1.00    | import_iris.Iris.time_iris                                                                  |
|          | 128±1μs                      | 128±0.7μs                 | 1.00    | import_iris.Iris.time_iterate                                                               |
|          | 8.45±0.04ms                  | 8.43±0.04ms               | 1.00    | import_iris.Iris.time_palette                                                               |
|          | 2.22±0.04ms                  | 2.28±0.04ms               | 1.03    | import_iris.Iris.time_plot                                                                  |
|          | 106±2μs                      | 105±0.8μs                 | 0.99    | import_iris.Iris.time_quickplot                                                             |
|          | 2.24±0.02ms                  | 2.20±0.03ms               | 0.98    | import_iris.Iris.time_std_names                                                             |
|          | 1.80±0.01ms                  | 1.83±0.02ms               | 1.01    | import_iris.Iris.time_symbols                                                               |
|          | 12.1±0.4ms                   | 13.1±0.5ms                | 1.08    | import_iris.Iris.time_tests                                                                 |
|          | 256±2μs                      | 257±3μs                   | 1.01    | import_iris.Iris.time_third_party_cartopy                                                   |
|          | 4.77±0.04ms                  | 4.78±0.03ms               | 1.00    | import_iris.Iris.time_third_party_cf_units                                                  |
|          | 120±2μs                      | 120±0.9μs                 | 1.00    | import_iris.Iris.time_third_party_cftime                                                    |
|          | 2.83±0.01ms                  | 2.86±0.01ms               | 1.01    | import_iris.Iris.time_third_party_matplotlib                                                |
|          | 1.06±0.01ms                  | 1.07±0.01ms               | 1.00    | import_iris.Iris.time_third_party_numpy                                                     |
|          | 171±2μs                      | 171±2μs                   | 1.00    | import_iris.Iris.time_third_party_scipy                                                     |
|          | 99.8±0.6μs                   | 99.1±0.6μs                | 0.99    | import_iris.Iris.time_time                                                                  |
|          | 323±6μs                      | 324±2μs                   | 1.00    | import_iris.Iris.time_util                                                                  |
|          | 73.9±1μs                     | 72.9±0.8μs                | 0.99    | iterate.IZip.time_izip                                                                      |
|          | 9.06±0.1ms                   | 8.99±0.2ms                | 0.99    | load.LoadAndRealise.time_load((1280, 960, 5), False, 'FF')                                  |
|          | 25.3±0.4ms                   | 25.1±0.7ms                | 0.99    | load.LoadAndRealise.time_load((1280, 960, 5), False, 'NetCDF')                              |
|          | 9.87±0.2ms                   | 9.74±0.1ms                | 0.99    | load.LoadAndRealise.time_load((1280, 960, 5), False, 'PP')                                  |
|          | 8.97±0.04ms                  | 8.89±0.07ms               | 0.99    | load.LoadAndRealise.time_load((1280, 960, 5), True, 'FF')                                   |
|          | 22.0±0.2ms                   | 22.8±0.7ms                | 1.04    | load.LoadAndRealise.time_load((1280, 960, 5), True, 'NetCDF')                               |
|          | 9.76±0.04ms                  | 9.72±0.08ms               | 1.00    | load.LoadAndRealise.time_load((1280, 960, 5), True, 'PP')                                   |
|          | 1.55±0.01s                   | 1.55±0.02s                | 1.00    | load.LoadAndRealise.time_load((2, 2, 1000), False, 'FF')                                    |
|          | 22.1±0.2ms                   | 21.8±0.2ms                | 0.98    | load.LoadAndRealise.time_load((2, 2, 1000), False, 'NetCDF')                                |
|          | 1.71±0.02s                   | 1.71±0.02s                | 1.00    | load.LoadAndRealise.time_load((2, 2, 1000), False, 'PP')                                    |
|          | 1.53±0.02s                   | 1.54±0.01s                | 1.01    | load.LoadAndRealise.time_load((2, 2, 1000), True, 'FF')                                     |
|          | 22.2±0.4ms                   | 22.0±0.4ms                | 0.99    | load.LoadAndRealise.time_load((2, 2, 1000), True, 'NetCDF')                                 |
|          | 1.70±0.02s                   | 1.72±0.01s                | 1.01    | load.LoadAndRealise.time_load((2, 2, 1000), True, 'PP')                                     |
|          | 4.31±0.05ms                  | 4.24±0.05ms               | 0.98    | load.LoadAndRealise.time_load((50, 50, 2), False, 'FF')                                     |
|          | 20.7±0.3ms                   | 20.5±0.3ms                | 0.99    | load.LoadAndRealise.time_load((50, 50, 2), False, 'NetCDF')                                 |
|          | 4.57±0.04ms                  | 4.54±0.04ms               | 0.99    | load.LoadAndRealise.time_load((50, 50, 2), False, 'PP')                                     |
|          | 4.25±0.02ms                  | 4.24±0.03ms               | 1.00    | load.LoadAndRealise.time_load((50, 50, 2), True, 'FF')                                      |
|          | 20.8±0.2ms                   | 20.9±0.3ms                | 1.00    | load.LoadAndRealise.time_load((50, 50, 2), True, 'NetCDF')                                  |
|          | 4.52±0.06ms                  | 4.58±0.07ms               | 1.01    | load.LoadAndRealise.time_load((50, 50, 2), True, 'PP')                                      |
|          | 34.0±3ms                     | 32.8±0.8ms                | 0.96    | load.LoadAndRealise.time_realise((1280, 960, 5), False, 'FF')                               |
|          | 19.4±0.5ms                   | 20.0±0.3ms                | 1.03    | load.LoadAndRealise.time_realise((1280, 960, 5), False, 'NetCDF')                           |
|          | 13.9±2ms                     | 13.8±2ms                  | 0.99    | load.LoadAndRealise.time_realise((1280, 960, 5), False, 'PP')                               |
|          | 26.5±2ms                     | 26.5±2ms                  | 1.00    | load.LoadAndRealise.time_realise((1280, 960, 5), True, 'FF')                                |
|          | 71.0±2ms                     | 71.8±2ms                  | 1.01    | load.LoadAndRealise.time_realise((1280, 960, 5), True, 'NetCDF')                            |
|          | 26.5±2ms                     | 26.1±1ms                  | 0.99    | load.LoadAndRealise.time_realise((1280, 960, 5), True, 'PP')                                |
|          | 500±7ms                      | 507±6ms                   | 1.01    | load.LoadAndRealise.time_realise((2, 2, 1000), False, 'FF')                                 |
|          | 3.08±0.2ms                   | 3.02±0.1ms                | 0.98    | load.LoadAndRealise.time_realise((2, 2, 1000), False, 'NetCDF')                             |
|          | 504±6ms                      | 509±6ms                   | 1.01    | load.LoadAndRealise.time_realise((2, 2, 1000), False, 'PP')                                 |
|          | 507±4ms                      | 509±7ms                   | 1.00    | load.LoadAndRealise.time_realise((2, 2, 1000), True, 'FF')                                  |
|          | 3.13±0.2ms                   | 3.00±0.07ms               | 0.96    | load.LoadAndRealise.time_realise((2, 2, 1000), True, 'NetCDF')                              |
|          | 513±4ms                      | 515±7ms                   | 1.00    | load.LoadAndRealise.time_realise((2, 2, 1000), True, 'PP')                                  |
|          | 1.72±0.06ms                  | 1.71±0.07ms               | 0.99    | load.LoadAndRealise.time_realise((50, 50, 2), False, 'FF')                                  |
|          | 3.03±0.1ms                   | 3.03±0.08ms               | 1.00    | load.LoadAndRealise.time_realise((50, 50, 2), False, 'NetCDF')                              |
|          | 1.79±0.09ms                  | 1.71±0.1ms                | 0.96    | load.LoadAndRealise.time_realise((50, 50, 2), False, 'PP')                                  |
|          | 1.79±0.08ms                  | 1.76±0.08ms               | 0.98    | load.LoadAndRealise.time_realise((50, 50, 2), True, 'FF')                                   |
|          | 3.04±0.1ms                   | 3.14±0.1ms                | 1.03    | load.LoadAndRealise.time_realise((50, 50, 2), True, 'NetCDF')                               |
|          | 1.73±0.1ms                   | 1.78±0.1ms                | 1.02    | load.LoadAndRealise.time_realise((50, 50, 2), True, 'PP')                                   |
|          | 371±3ms                      | 373±6ms                   | 1.00    | load.ManyVars.time_many_var_load                                                            |
|          | 9.07±0.03ms                  | 9.05±0.08ms               | 1.00    | load.STASHConstraint.time_stash_constraint((1280, 960, 5), 'FF')                            |
|          | 9.96±0.1ms                   | 9.95±0.06ms               | 1.00    | load.STASHConstraint.time_stash_constraint((1280, 960, 5), 'PP')                            |
|          | 1.54±0.02s                   | 1.56±0.02s                | 1.02    | load.STASHConstraint.time_stash_constraint((2, 2, 1000), 'FF')                              |
|          | 1.71±0.02s                   | 1.74±0.01s                | 1.02    | load.STASHConstraint.time_stash_constraint((2, 2, 1000), 'PP')                              |
|          | 4.34±0.05ms                  | 4.30±0.03ms               | 0.99    | load.STASHConstraint.time_stash_constraint((2, 2, 2), 'FF')                                 |
|          | 4.60±0.01ms                  | 4.61±0.03ms               | 1.00    | load.STASHConstraint.time_stash_constraint((2, 2, 2), 'PP')                                 |
|          | 8.93±0.04ms                  | 8.97±0.08ms               | 1.00    | load.StructuredFF.time_structured_load((1280, 960, 5), False)                               |
|          | 5.77±0.1ms                   | 5.89±0.05ms               | 1.02    | load.StructuredFF.time_structured_load((1280, 960, 5), True)                                |
|          | 1.53±0.02s                   | 1.55±0.01s                | 1.01    | load.StructuredFF.time_structured_load((2, 2, 1000), False)                                 |
|          | 544±10ms                     | 531±9ms                   | 0.98    | load.StructuredFF.time_structured_load((2, 2, 1000), True)                                  |
|          | 4.25±0.06ms                  | 4.28±0.03ms               | 1.01    | load.StructuredFF.time_structured_load((2, 2, 2), False)                                    |
|          | 4.13±0.05ms                  | 4.14±0.03ms               | 1.00    | load.StructuredFF.time_structured_load((2, 2, 2), True)                                     |
|          | 169±2ms                      | 168±3ms                   | 0.99    | load.TimeConstraint.time_time_constraint(20, 'FF')                                          |
|          | 24.2±0.4ms                   | 24.7±0.8ms                | 1.02    | load.TimeConstraint.time_time_constraint(20, 'NetCDF')                                      |
|          | 181±3ms                      | 187±3ms                   | 1.03    | load.TimeConstraint.time_time_constraint(20, 'PP')                                          |
|          | 32.3±0.7ms                   | 32.2±0.2ms                | 1.00    | load.TimeConstraint.time_time_constraint(3, 'FF')                                           |
|          | 23.6±0.2ms                   | 24.1±0.2ms                | 1.02    | load.TimeConstraint.time_time_constraint(3, 'NetCDF')                                       |
|          | 34.2±0.5ms                   | 34.4±0.4ms                | 1.00    | load.TimeConstraint.time_time_constraint(3, 'PP')                                           |
|          | 18.1±0.2ms                   | 18.2±0.5ms                | 1.01    | load.ugrid.BasicLoading.time_load_file(1)                                                   |
|          | 44.7±0.6ms                   | 45.5±0.7ms                | 1.02    | load.ugrid.BasicLoading.time_load_file(200000)                                              |
|          | 14.8±0.3ms                   | 15.1±0.2ms                | 1.02    | load.ugrid.BasicLoading.time_load_mesh(1)                                                   |
|          | 23.5±0.4ms                   | 23.9±0.8ms                | 1.01    | load.ugrid.BasicLoading.time_load_mesh(200000)                                              |
|          | 18.1±0.2ms                   | 18.5±0.4ms                | 1.03    | load.ugrid.BasicLoadingTime.time_load_file(1)                                               |
|          | 21.4±0.3ms                   | 22.0±0.3ms                | 1.03    | load.ugrid.BasicLoadingTime.time_load_file(200000)                                          |
|          | 14.9±0.4ms                   | 15.1±0.3ms                | 1.01    | load.ugrid.BasicLoadingTime.time_load_mesh(1)                                               |
|          | 17.7±0.6ms                   | 17.3±0.4ms                | 0.98    | load.ugrid.BasicLoadingTime.time_load_mesh(200000)                                          |
|          | 19.0±0.2ms                   | 19.2±0.3ms                | 1.01    | load.ugrid.Callback.time_load_file_callback(1)                                              |
|          | 54.2±0.5ms                   | 54.5±0.4ms                | 1.00    | load.ugrid.Callback.time_load_file_callback(200000)                                         |
|          | 19.1±0.3ms                   | 19.1±0.5ms                | 1.00    | load.ugrid.CallbackTime.time_load_file_callback(1)                                          |
|          | 23.0±0.3ms                   | 23.1±0.5ms                | 1.01    | load.ugrid.CallbackTime.time_load_file_callback(200000)                                     |
|          | 2.89±0.1ms                   | 2.93±0.1ms                | 1.01    | load.ugrid.DataRealisation.time_realise_data(10000)                                         |
|          | 5.57±0.7ms                   | 5.64±0.1ms                | 1.01    | load.ugrid.DataRealisation.time_realise_data(200000)                                        |
|          | 38.7±1ms                     | 39.0±0.9ms                | 1.01    | load.ugrid.DataRealisationTime.time_realise_data(10000)                                     |
|          | 814±5ms                      | 815±10ms                  | 1.00    | load.ugrid.DataRealisationTime.time_realise_data(200000)                                    |
|          | 427±5ms                      | 426±2ms                   | 1.00    | merge_concat.Concatenate.time_concatenate(False)                                            |
|          | 426±3ms                      | 426±4ms                   | 1.00    | merge_concat.Concatenate.time_concatenate(True)                                             |
|          | 114±5M                       | 114±5M                    | 1.00    | merge_concat.Concatenate.tracemalloc_concatenate(False)                                     |
|          | 120±4M                       | 109±5M                    | 0.91    | merge_concat.Concatenate.tracemalloc_concatenate(True)                                      |
|          | 52.8±0.3ms                   | 54.1±2ms                  | 1.02    | merge_concat.Merge.time_merge                                                               |
|          | 1.2±0.3M                     | 759±300k                  | ~0.63   | merge_concat.Merge.tracemalloc_merge                                                        |
|          | 458±4ns                      | 456±2ns                   | 1.00    | mesh.utils.regions_combine.CombineRegionsComputeRealData.time_compute_data(50)              |
|          | 259±2ms                      | 259±2ms                   | 1.00    | mesh.utils.regions_combine.CombineRegionsComputeRealData.time_compute_data(500)             |
|          | 656±1k                       | 656±2k                    | 1.00    | mesh.utils.regions_combine.CombineRegionsComputeRealData.tracemalloc_compute_data(50)       |
|          | 60.1±0M                      | 60.1±0M                   | 1.00    | mesh.utils.regions_combine.CombineRegionsComputeRealData.tracemalloc_compute_data(500)      |
|          | 16.6±0.2ms                   | 16.9±0.2ms                | 1.02    | mesh.utils.regions_combine.CombineRegionsCreateCube.time_create_combined_cube(50)           |
|          | 18.1±0.1ms                   | 18.5±0.2ms                | 1.02    | mesh.utils.regions_combine.CombineRegionsCreateCube.time_create_combined_cube(500)          |
|          | 490±30k                      | 499±30k                   | 1.02    | mesh.utils.regions_combine.CombineRegionsCreateCube.tracemalloc_create_combined_cube(50)    |
|          | 12.4±0.03M                   | 12.4±0.03M                | 1.00    | mesh.utils.regions_combine.CombineRegionsCreateCube.tracemalloc_create_combined_cube(500)   |
|          | 110±2ms                      | 111±2ms                   | 1.01    | mesh.utils.regions_combine.CombineRegionsFileStreamedCalc.time_stream_file2file(50)         |
|          | 714±6ms                      | 715±6ms                   | 1.00    | mesh.utils.regions_combine.CombineRegionsFileStreamedCalc.time_stream_file2file(500)        |
|          | 1.19±0.04M                   | 1.23±0.04M                | 1.03    | mesh.utils.regions_combine.CombineRegionsFileStreamedCalc.tracemalloc_stream_file2file(50)  |
|          | 96.2±0.03M                   | 96.2±0.04M                | 1.00    | mesh.utils.regions_combine.CombineRegionsFileStreamedCalc.tracemalloc_stream_file2file(500) |
|          | 72.2±0.7ms                   | 72.2±0.5ms                | 1.00    | mesh.utils.regions_combine.CombineRegionsSaveData.time_save(50)                             |
|          | 667±6ms                      | 673±7ms                   | 1.01    | mesh.utils.regions_combine.CombineRegionsSaveData.time_save(500)                            |
|          | 1.18±0.01M                   | 1.18±0.01M                | 1.00    | mesh.utils.regions_combine.CombineRegionsSaveData.tracemalloc_save(50)                      |
|          | 96.2±0.01M                   | 96.2±0.01M                | 1.00    | mesh.utils.regions_combine.CombineRegionsSaveData.tracemalloc_save(500)                     |
|          | 2.1752849999999997           | 2.1752849999999997        | 1.00    | mesh.utils.regions_combine.CombineRegionsSaveData.track_filesize_saved(50)                  |
|          | 216.01528499999998           | 216.01528499999998        | 1.00    | mesh.utils.regions_combine.CombineRegionsSaveData.track_filesize_saved(500)                 |
|          | 6.74±0.04ms                  | 6.74±0.04ms               | 1.00    | plot.AuxSort.time_aux_sort                                                                  |
|          | 76.9±3ms                     | 80.6±3ms                  | 1.05    | regridding.CurvilinearRegridding.time_regrid_pic                                            |
|          | 136±3M                       | 136±3M                    | 1.00    | regridding.CurvilinearRegridding.tracemalloc_regrid_pic                                     |
|          | 101±0.7ms                    | 102±0.6ms                 | 1.01    | regridding.HorizontalChunkedRegridding.time_regrid_area_w                                   |
|          | 49.0±1ms                     | 49.3±0.5ms                | 1.00    | regridding.HorizontalChunkedRegridding.time_regrid_area_w_new_grid                          |
|          | 106±0.06M                    | 106±0.05M                 | 1.00    | regridding.HorizontalChunkedRegridding.tracemalloc_regrid_area_w                            |
|          | 147±0.02M                    | 147±0.02M                 | 1.00    | regridding.HorizontalChunkedRegridding.tracemalloc_regrid_area_w_new_grid                   |
|          | 4.48±0.07ms                  | 4.52±0.03ms               | 1.01    | save.NetcdfSave.time_netcdf_save_cube(50, False)                                            |
|          | 76.2±1ms                     | 76.0±0.6ms                | 1.00    | save.NetcdfSave.time_netcdf_save_cube(50, True)                                             |
|          | 53.7±2ms                     | 52.9±1ms                  | 0.99    | save.NetcdfSave.time_netcdf_save_cube(600, False)                                           |
|          | 575±5ms                      | 575±3ms                   | 1.00    | save.NetcdfSave.time_netcdf_save_cube(600, True)                                            |
|          | 88.4±0.9ns                   | 88.9±2ns                  | 1.01    | save.NetcdfSave.time_netcdf_save_mesh(50, False)                                            |
|          | 57.2±0.5ms                   | 58.3±0.7ms                | 1.02    | save.NetcdfSave.time_netcdf_save_mesh(50, True)                                             |
|          | 88.8±0.8ns                   | 87.8±0.4ns                | 0.99    | save.NetcdfSave.time_netcdf_save_mesh(600, False)                                           |
|          | 504±3ms                      | 504±4ms                   | 1.00    | save.NetcdfSave.time_netcdf_save_mesh(600, True)                                            |
|          | 27.1±0.1k                    | 27.1±0.08k                | 1.00    | save.NetcdfSave.tracemalloc_netcdf_save(50, False)                                          |
|          | 1.7±0.2M                     | 1.7±0.2M                  | 1.00    | save.NetcdfSave.tracemalloc_netcdf_save(50, True)                                           |
|          | 27.1±0.08k                   | 27.1±0.1k                 | 1.00    | save.NetcdfSave.tracemalloc_netcdf_save(600, False)                                         |
|          | 190±20M                      | 225±20M                   | 1.18    | save.NetcdfSave.tracemalloc_netcdf_save(600, True)                                          |
|          | 47.7±0.9ms                   | 48.8±1ms                  | 1.02    | stats.PearsonR.time_lazy                                                                    |
|          | 19.2±0.3ms                   | 19.3±0.3ms                | 1.01    | stats.PearsonR.time_real                                                                    |
|          | 19.9±0.1M                    | 20±0.2M                   | 1.00    | stats.PearsonR.tracemalloc_lazy                                                             |
|          | 18.4±0.01M                   | 18.4±0.01M                | 1.00    | stats.PearsonR.tracemalloc_real                                                             |
|          | 23.6±1ms                     | 24.2±0.6ms                | 1.03    | trajectory.TrajectoryInterpolation.time_trajectory_linear                                   |
|          | 61.9±0.2ms                   | 61.9±0.7ms                | 1.00    | trajectory.TrajectoryInterpolation.time_trajectory_nearest                                  |
|          | 23.3±0.01M                   | 23.3±0.01M                | 1.00    | trajectory.TrajectoryInterpolation.tracemalloc_trajectory_linear                            |
|          | 12.1±0.05M                   | 12.1±0.05M                | 1.00    | trajectory.TrajectoryInterpolation.tracemalloc_trajectory_nearest                           |

Benchmarks that have got worse:

| Change   | Before [2acfd928] <main~1>   | After [9ee671c9] <main>   |   Ratio | Benchmark (Parameter)          |
|----------|------------------------------|---------------------------|---------|--------------------------------|
| +        | 485±4μs                      | 598±4μs                   |    1.23 | import_iris.Iris.time_analysis |

Generated by GHA run 10893359442

[trexfeathers]

I think this is probably genuine, but also not a cause for concern.