Performance Shift(s): 38e5a230

[github-actions]

Benchmark comparison has identified performance shifts at:

• commit 38e5a23 ([CI Bot] environment lockfiles auto-update #6029).

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

⏱️ Performance Benchmark Report: 38e5a23

Performance shifts

| Change   |   Before [ee6f1868] <main~1> |   After [38e5a230] <main> |   Ratio | Benchmark (Parameter)                                 |
|----------|------------------------------|---------------------------|---------|-------------------------------------------------------|
| +        |                        165.2 |                     231.1 |     1.4 | save.NetcdfSave.track_addedmem_netcdf_save(600, True) |

Full benchmark results

Benchmarks that have stayed the same:

| Change   | Before [ee6f1868] <main~1>   | After [38e5a230] <main>   | Ratio   | Benchmark (Parameter)                                                                                  |
|----------|------------------------------|---------------------------|---------|--------------------------------------------------------------------------------------------------------|
|          | 53.6±0.6ms                   | 54.0±0.6ms                | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_COUNT(False)                                         |
|          | 54.3±0.8ms                   | 54.4±0.5ms                | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_COUNT(True)                                          |
|          | 191±2ms                      | 192±1ms                   | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_FAST_PERCENTILE(False)                               |
|          | 192±1ms                      | 192±2ms                   | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_FAST_PERCENTILE(True)                                |
|          | 36.9±0.3ms                   | 36.8±0.2ms                | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_GMEAN(False)                                         |
|          | 37.4±0.4ms                   | 38.1±0.3ms                | 1.02    | aggregate_collapse.Aggregation.time_aggregated_by_GMEAN(True)                                          |
|          | 36.6±0.4ms                   | 37.3±0.4ms                | 1.02    | aggregate_collapse.Aggregation.time_aggregated_by_HMEAN(False)                                         |
|          | 37.3±0.5ms                   | 37.9±0.4ms                | 1.02    | aggregate_collapse.Aggregation.time_aggregated_by_HMEAN(True)                                          |
|          | 46.6±0.7ms                   | 47.1±0.4ms                | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_MAX(False)                                           |
|          | 47.4±0.8ms                   | 47.4±0.6ms                | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_MAX(True)                                            |
|          | 121±0.8ms                    | 121±1ms                   | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_MAX_RUN(False)                                       |
|          | 120±0.9ms                    | 121±2ms                   | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_MAX_RUN(True)                                        |
|          | 51.4±0.8ms                   | 51.4±0.6ms                | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_MEAN(False)                                          |
|          | 51.7±0.7ms                   | 52.3±0.6ms                | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_MEAN(True)                                           |
|          | 37.2±0.8ms                   | 37.0±0.3ms                | 0.99    | aggregate_collapse.Aggregation.time_aggregated_by_MEDIAN(False)                                        |
|          | 37.3±0.3ms                   | 37.5±0.3ms                | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_MEDIAN(True)                                         |
|          | 46.9±0.7ms                   | 46.5±0.6ms                | 0.99    | aggregate_collapse.Aggregation.time_aggregated_by_MIN(False)                                           |
|          | 47.3±1ms                     | 47.0±0.5ms                | 0.99    | aggregate_collapse.Aggregation.time_aggregated_by_MIN(True)                                            |
|          | 1.30±0.01s                   | 1.31±0.01s                | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_PEAK(False)                                          |
|          | 1.30±0.01s                   | 1.32±0.01s                | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_PEAK(True)                                           |
|          | 673±10ms                     | 682±10ms                  | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_PERCENTILE(False)                                    |
|          | 676±20ms                     | 675±10ms                  | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_PERCENTILE(True)                                     |
|          | 35.4±0.3ms                   | 35.6±0.5ms                | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_PROPORTION(False)                                    |
|          | 36.0±0.4ms                   | 35.9±0.4ms                | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_PROPORTION(True)                                     |
|          | 62.1±0.9ms                   | 62.4±0.6ms                | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_RMS(False)                                           |
|          | 62.9±0.5ms                   | 63.0±0.4ms                | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_RMS(True)                                            |
|          | 65.6±0.8ms                   | 66.2±0.9ms                | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_STD_DEV(False)                                       |
|          | 67.2±0.8ms                   | 66.9±0.5ms                | 1.00    | aggregate_collapse.Aggregation.time_aggregated_by_STD_DEV(True)                                        |
|          | 61.1±1ms                     | 61.6±0.7ms                | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_VARIANCE(False)                                      |
|          | 61.7±1ms                     | 62.1±0.8ms                | 1.01    | aggregate_collapse.Aggregation.time_aggregated_by_VARIANCE(True)                                       |
|          | 19.9±0.2ms                   | 20.3±0.4ms                | 1.02    | aggregate_collapse.Aggregation.time_collapsed_by_COUNT(False)                                          |
|          | 24.0±0.6ms                   | 23.6±0.2ms                | 0.98    | aggregate_collapse.Aggregation.time_collapsed_by_COUNT(True)                                           |
|          | 133±2ms                      | 132±0.9ms                 | 0.99    | aggregate_collapse.Aggregation.time_collapsed_by_FAST_PERCENTILE(False)                                |
|          | 145±1ms                      | 146±0.9ms                 | 1.01    | aggregate_collapse.Aggregation.time_collapsed_by_FAST_PERCENTILE(True)                                 |
|          | 18.2±0.4ms                   | 18.4±0.3ms                | 1.01    | aggregate_collapse.Aggregation.time_collapsed_by_GMEAN(False)                                          |
|          | 22.4±0.3ms                   | 22.2±0.4ms                | 0.99    | aggregate_collapse.Aggregation.time_collapsed_by_GMEAN(True)                                           |
|          | 18.3±0.3ms                   | 18.5±0.4ms                | 1.01    | aggregate_collapse.Aggregation.time_collapsed_by_HMEAN(False)                                          |
|          | 22.1±0.2ms                   | 22.2±0.3ms                | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_HMEAN(True)                                           |
|          | 18.9±0.4ms                   | 19.1±0.4ms                | 1.01    | aggregate_collapse.Aggregation.time_collapsed_by_MAX(False)                                            |
|          | 22.5±0.4ms                   | 22.6±0.5ms                | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_MAX(True)                                             |
|          | 34.5±1ms                     | 34.7±0.3ms                | 1.01    | aggregate_collapse.Aggregation.time_collapsed_by_MAX_RUN(False)                                        |
|          | 37.9±2ms                     | 38.5±0.9ms                | 1.02    | aggregate_collapse.Aggregation.time_collapsed_by_MAX_RUN(True)                                         |
|          | 19.2±0.6ms                   | 19.7±0.6ms                | 1.03    | aggregate_collapse.Aggregation.time_collapsed_by_MEAN(False)                                           |
|          | 22.7±0.5ms                   | 23.0±0.3ms                | 1.02    | aggregate_collapse.Aggregation.time_collapsed_by_MEAN(True)                                            |
|          | 19.0±0.5ms                   | 19.2±0.2ms                | 1.01    | aggregate_collapse.Aggregation.time_collapsed_by_MEDIAN(False)                                         |
|          | 22.7±0.3ms                   | 23.1±0.3ms                | 1.02    | aggregate_collapse.Aggregation.time_collapsed_by_MEDIAN(True)                                          |
|          | 18.8±0.6ms                   | 19.1±0.2ms                | 1.01    | aggregate_collapse.Aggregation.time_collapsed_by_MIN(False)                                            |
|          | 22.4±0.4ms                   | 22.4±0.3ms                | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_MIN(True)                                             |
|          | 551±6ms                      | 556±5ms                   | 1.01    | aggregate_collapse.Aggregation.time_collapsed_by_PEAK(False)                                           |
|          | 552±1ms                      | 555±3ms                   | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_PEAK(True)                                            |
|          | 152±2ms                      | 151±2ms                   | 0.99    | aggregate_collapse.Aggregation.time_collapsed_by_PERCENTILE(False)                                     |
|          | 168±2ms                      | 168±2ms                   | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_PERCENTILE(True)                                      |
|          | 18.2±0.6ms                   | 18.0±0.2ms                | 0.99    | aggregate_collapse.Aggregation.time_collapsed_by_PROPORTION(False)                                     |
|          | 22.0±0.4ms                   | 22.0±0.2ms                | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_PROPORTION(True)                                      |
|          | 21.2±0.3ms                   | 21.8±0.8ms                | 1.03    | aggregate_collapse.Aggregation.time_collapsed_by_RMS(False)                                            |
|          | 25.5±0.7ms                   | 25.3±0.5ms                | 0.99    | aggregate_collapse.Aggregation.time_collapsed_by_RMS(True)                                             |
|          | 21.4±0.7ms                   | 21.9±0.3ms                | 1.02    | aggregate_collapse.Aggregation.time_collapsed_by_STD_DEV(False)                                        |
|          | 25.0±0.5ms                   | 25.4±0.3ms                | 1.02    | aggregate_collapse.Aggregation.time_collapsed_by_STD_DEV(True)                                         |
|          | 21.3±0.5ms                   | 21.2±0.3ms                | 1.00    | aggregate_collapse.Aggregation.time_collapsed_by_VARIANCE(False)                                       |
|          | 24.6±0.4ms                   | 24.8±0.4ms                | 1.01    | aggregate_collapse.Aggregation.time_collapsed_by_VARIANCE(True)                                        |
|          | 82.5±0.9ms                   | 83.6±0.8ms                | 1.01    | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_MEAN(False)                                |
|          | 83.8±1ms                     | 84.1±0.5ms                | 1.00    | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_MEAN(True)                                 |
|          | 94.4±0.5ms                   | 95.9±0.8ms                | 1.02    | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_RMS(False)                                 |
|          | 95.6±0.6ms                   | 96.4±0.7ms                | 1.01    | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_RMS(True)                                  |
|          | 58.4±0.5ms                   | 59.2±0.6ms                | 1.01    | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_SUM(False)                                 |
|          | 59.1±0.6ms                   | 60.3±1ms                  | 1.02    | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_SUM(True)                                  |
|          | 29.4±0.7ms                   | 29.8±0.5ms                | 1.02    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_MEAN(False)                                 |
|          | 32.8±0.6ms                   | 33.1±0.4ms                | 1.01    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_MEAN(True)                                  |
|          | 31.5±0.6ms                   | 31.4±0.5ms                | 1.00    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_RMS(False)                                  |
|          | 35.1±0.4ms                   | 35.4±0.3ms                | 1.01    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_RMS(True)                                   |
|          | 26.1±0.4ms                   | 26.1±0.3ms                | 1.00    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_SUM(False)                                  |
|          | 29.5±0.4ms                   | 29.8±0.2ms                | 1.01    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_SUM(True)                                   |
|          | 323±3ms                      | 323±3ms                   | 1.00    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_WPERCENTILE(False)                          |
|          | 342±3ms                      | 349±2ms                   | 1.02    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_WPERCENTILE(True)                           |
|          | 1.10±0.01ms                  | 1.12±0.02ms               | 1.01    | cube.CubeCreation.time_create(False, 'construct')                                                      |
|          | 396±5μs                      | 400±5μs                   | 1.01    | cube.CubeCreation.time_create(False, 'instantiate')                                                    |
|          | 966±10μs                     | 954±20μs                  | 0.99    | cube.CubeCreation.time_create(True, 'construct')                                                       |
|          | 571±4μs                      | 584±9μs                   | 1.02    | cube.CubeCreation.time_create(True, 'instantiate')                                                     |
|          | 226±2ms                      | 224±3ms                   | 0.99    | cube.CubeEquality.time_equality(False, False, 'all_equal')                                             |
|          | 112±1ms                      | 113±0.7ms                 | 1.01    | cube.CubeEquality.time_equality(False, False, 'coord_inequality')                                      |
|          | 240±3ms                      | 235±3ms                   | 0.98    | cube.CubeEquality.time_equality(False, False, 'data_inequality')                                       |
|          | 16.6±0.2μs                   | 16.4±0.1μs                | 0.99    | cube.CubeEquality.time_equality(False, False, 'metadata_inequality')                                   |
|          | 313±6ms                      | 310±4ms                   | 0.99    | cube.CubeEquality.time_equality(False, True, 'all_equal')                                              |
|          | 200±2ms                      | 201±2ms                   | 1.01    | cube.CubeEquality.time_equality(False, True, 'coord_inequality')                                       |
|          | 325±6ms                      | 318±4ms                   | 0.98    | cube.CubeEquality.time_equality(False, True, 'data_inequality')                                        |
|          | 16.7±0.2μs                   | 16.6±0.3μs                | 1.00    | cube.CubeEquality.time_equality(False, True, 'metadata_inequality')                                    |
|          | 225±3ms                      | 224±3ms                   | 1.00    | cube.CubeEquality.time_equality(True, False, 'all_equal')                                              |
|          | 113±2ms                      | 115±2ms                   | 1.02    | cube.CubeEquality.time_equality(True, False, 'coord_inequality')                                       |
|          | 237±3ms                      | 240±3ms                   | 1.01    | cube.CubeEquality.time_equality(True, False, 'data_inequality')                                        |
|          | 53.2±0.3μs                   | 53.1±0.8μs                | 1.00    | cube.CubeEquality.time_equality(True, False, 'metadata_inequality')                                    |
|          | 313±6ms                      | 313±2ms                   | 1.00    | cube.CubeEquality.time_equality(True, True, 'all_equal')                                               |
|          | 201±2ms                      | 201±2ms                   | 1.00    | cube.CubeEquality.time_equality(True, True, 'coord_inequality')                                        |
|          | 326±4ms                      | 322±3ms                   | 0.99    | cube.CubeEquality.time_equality(True, True, 'data_inequality')                                         |
|          | 54.7±0.9μs                   | 54.5±0.6μs                | 1.00    | cube.CubeEquality.time_equality(True, True, 'metadata_inequality')                                     |
|          | 408±3ns                      | 391±2ns                   | 0.96    | experimental.ugrid.regions_combine.CombineRegionsComputeRealData.time_compute_data(50)                 |
|          | 278±2ms                      | 257±2ms                   | 0.92    | experimental.ugrid.regions_combine.CombineRegionsComputeRealData.time_compute_data(500)                |
|          | 0.6                          | 0.6                       | 1.00    | experimental.ugrid.regions_combine.CombineRegionsComputeRealData.track_addedmem_compute_data(50)       |
|          | 57.3                         | 57.3                      | 1.00    | experimental.ugrid.regions_combine.CombineRegionsComputeRealData.track_addedmem_compute_data(500)      |
|          | 14.4±0.1ms                   | 14.6±0.1ms                | 1.02    | experimental.ugrid.regions_combine.CombineRegionsCreateCube.time_create_combined_cube(50)              |
|          | 16.1±0.2ms                   | 16.2±0.1ms                | 1.01    | experimental.ugrid.regions_combine.CombineRegionsCreateCube.time_create_combined_cube(500)             |
|          | 0.5                          | 0.5                       | 1.00    | experimental.ugrid.regions_combine.CombineRegionsCreateCube.track_addedmem_create_combined_cube(50)    |
|          | 11.8                         | 11.8                      | 1.00    | experimental.ugrid.regions_combine.CombineRegionsCreateCube.track_addedmem_create_combined_cube(500)   |
|          | 106±0.9ms                    | 108±0.9ms                 | 1.02    | experimental.ugrid.regions_combine.CombineRegionsFileStreamedCalc.time_stream_file2file(50)            |
|          | 730±3ms                      | 700±6ms                   | 0.96    | experimental.ugrid.regions_combine.CombineRegionsFileStreamedCalc.time_stream_file2file(500)           |
|          | 1.4                          | 1.4                       | 1.00    | experimental.ugrid.regions_combine.CombineRegionsFileStreamedCalc.track_addedmem_stream_file2file(50)  |
|          | 92.0                         | 92.0                      | 1.00    | experimental.ugrid.regions_combine.CombineRegionsFileStreamedCalc.track_addedmem_stream_file2file(500) |
|          | 66.4±0.5ms                   | 66.5±0.8ms                | 1.00    | experimental.ugrid.regions_combine.CombineRegionsSaveData.time_save(50)                                |
|          | 679±7ms                      | 662±7ms                   | 0.97    | experimental.ugrid.regions_combine.CombineRegionsSaveData.time_save(500)                               |
|          | 1.3                          | 1.4                       | 1.08    | experimental.ugrid.regions_combine.CombineRegionsSaveData.track_addedmem_save(50)                      |
|          | 92.0                         | 91.9                      | 1.00    | experimental.ugrid.regions_combine.CombineRegionsSaveData.track_addedmem_save(500)                     |
|          | 2.1752849999999997           | 2.1752849999999997        | 1.00    | experimental.ugrid.regions_combine.CombineRegionsSaveData.track_filesize_saved(50)                     |
|          | 216.01528499999998           | 216.01528499999998        | 1.00    | experimental.ugrid.regions_combine.CombineRegionsSaveData.track_filesize_saved(500)                    |
|          | 674±10μs                     | 658±4μs                   | 0.98    | import_iris.Iris.time__concatenate                                                                     |
|          | 180±1μs                      | 179±5μs                   | 0.99    | import_iris.Iris.time__constraints                                                                     |
|          | 110±0.7μs                    | 112±2μs                   | 1.02    | import_iris.Iris.time__data_manager                                                                    |
|          | 93.7±0.5μs                   | 93.8±0.8μs                | 1.00    | import_iris.Iris.time__deprecation                                                                     |
|          | 138±1μs                      | 137±0.9μs                 | 0.99    | import_iris.Iris.time__lazy_data                                                                       |
|          | 903±2μs                      | 902±8μs                   | 1.00    | import_iris.Iris.time__merge                                                                           |
|          | 76.2±0.3μs                   | 77.0±0.6μs                | 1.01    | import_iris.Iris.time__representation                                                                  |
|          | 483±3μs                      | 488±3μs                   | 1.01    | import_iris.Iris.time_analysis                                                                         |
|          | 141±1μs                      | 140±4μs                   | 1.00    | import_iris.Iris.time_analysis__area_weighted                                                          |
|          | 109±0.9μs                    | 108±1μs                   | 0.99    | import_iris.Iris.time_analysis__grid_angles                                                            |
|          | 242±2μs                      | 237±2μs                   | 0.98    | import_iris.Iris.time_analysis__interpolation                                                          |
|          | 189±2μs                      | 189±3μs                   | 1.00    | import_iris.Iris.time_analysis__regrid                                                                 |
|          | 111±0.4μs                    | 111±0.6μs                 | 1.00    | import_iris.Iris.time_analysis__scipy_interpolate                                                      |
|          | 141±1μs                      | 139±3μs                   | 0.99    | import_iris.Iris.time_analysis_calculus                                                                |
|          | 326±2μs                      | 326±4μs                   | 1.00    | import_iris.Iris.time_analysis_cartography                                                             |
|          | 95.1±0.7μs                   | 94.6±0.5μs                | 1.00    | import_iris.Iris.time_analysis_geomerty                                                                |
|          | 220±3μs                      | 214±1μs                   | 0.97    | import_iris.Iris.time_analysis_maths                                                                   |
|          | 97.3±0.6μs                   | 96.3±0.6μs                | 0.99    | import_iris.Iris.time_analysis_stats                                                                   |
|          | 175±1μs                      | 173±2μs                   | 0.99    | import_iris.Iris.time_analysis_trajectory                                                              |
|          | 307±3μs                      | 306±7μs                   | 1.00    | import_iris.Iris.time_aux_factory                                                                      |
|          | 83.5±0.6μs                   | 84.0±0.8μs                | 1.01    | import_iris.Iris.time_common                                                                           |
|          | 163±2μs                      | 160±1μs                   | 0.98    | import_iris.Iris.time_common_lenient                                                                   |
|          | 987±4μs                      | 990±10μs                  | 1.00    | import_iris.Iris.time_common_metadata                                                                  |
|          | 133±1μs                      | 133±1μs                   | 1.00    | import_iris.Iris.time_common_mixin                                                                     |
|          | 1.18±0.01ms                  | 1.18±0.01ms               | 1.00    | import_iris.Iris.time_common_resolve                                                                   |
|          | 200±2μs                      | 197±2μs                   | 0.99    | import_iris.Iris.time_config                                                                           |
|          | 117±1μs                      | 115±2μs                   | 0.98    | import_iris.Iris.time_coord_categorisation                                                             |
|          | 364±3μs                      | 363±2μs                   | 1.00    | import_iris.Iris.time_coord_systems                                                                    |
|          | 746±6μs                      | 742±5μs                   | 0.99    | import_iris.Iris.time_coords                                                                           |
|          | 668±5μs                      | 668±6μs                   | 1.00    | import_iris.Iris.time_cube                                                                             |
|          | 223±3μs                      | 228±4μs                   | 1.02    | import_iris.Iris.time_exceptions                                                                       |
|          | 77.4±0.4μs                   | 77.6±0.6μs                | 1.00    | import_iris.Iris.time_experimental                                                                     |
|          | 188±2μs                      | 184±2μs                   | 0.98    | import_iris.Iris.time_fileformats                                                                      |
|          | 252±4μs                      | 249±3μs                   | 0.99    | import_iris.Iris.time_fileformats__ff                                                                  |
|          | 2.69±0.01ms                  | 2.69±0.03ms               | 1.00    | import_iris.Iris.time_fileformats__ff_cross_references                                                 |
|          | 78.8±0.4μs                   | 78.8±0.7μs                | 1.00    | import_iris.Iris.time_fileformats__pp_lbproc_pairs                                                     |
|          | 116±1μs                      | 115±1μs                   | 0.99    | import_iris.Iris.time_fileformats_abf                                                                  |
|          | 361±5μs                      | 358±2μs                   | 0.99    | import_iris.Iris.time_fileformats_cf                                                                   |
|          | 5.37±0.06ms                  | 5.35±0.06ms               | 1.00    | import_iris.Iris.time_fileformats_dot                                                                  |
|          | 74.7±1μs                     | 75.5±0.2μs                | 1.01    | import_iris.Iris.time_fileformats_name                                                                 |
|          | 257±3μs                      | 255±3μs                   | 0.99    | import_iris.Iris.time_fileformats_name_loaders                                                         |
|          | 119±1μs                      | 120±1μs                   | 1.01    | import_iris.Iris.time_fileformats_netcdf                                                               |
|          | 123±2μs                      | 123±2μs                   | 1.00    | import_iris.Iris.time_fileformats_nimrod                                                               |
|          | 215±3μs                      | 213±9μs                   | 0.99    | import_iris.Iris.time_fileformats_nimrod_load_rules                                                    |
|          | 786±4μs                      | 785±9μs                   | 1.00    | import_iris.Iris.time_fileformats_pp                                                                   |
|          | 186±3μs                      | 180±4μs                   | 0.97    | import_iris.Iris.time_fileformats_pp_load_rules                                                        |
|          | 133±2μs                      | 137±2μs                   | 1.03    | import_iris.Iris.time_fileformats_pp_save_rules                                                        |
|          | 512±4μs                      | 516±2μs                   | 1.01    | import_iris.Iris.time_fileformats_rules                                                                |
|          | 220±2μs                      | 219±2μs                   | 1.00    | import_iris.Iris.time_fileformats_structured_array_identification                                      |
|          | 83.3±1μs                     | 84.3±1μs                  | 1.01    | import_iris.Iris.time_fileformats_um                                                                   |
|          | 161±1μs                      | 160±2μs                   | 0.99    | import_iris.Iris.time_fileformats_um__fast_load                                                        |
|          | 139±1μs                      | 139±1μs                   | 1.00    | import_iris.Iris.time_fileformats_um__fast_load_structured_fields                                      |
|          | 75.2±0.8μs                   | 76.3±0.6μs                | 1.01    | import_iris.Iris.time_fileformats_um__ff_replacement                                                   |
|          | 81.4±0.6μs                   | 81.7±0.5μs                | 1.00    | import_iris.Iris.time_fileformats_um__optimal_array_structuring                                        |
|          | 982±3μs                      | 974±9μs                   | 0.99    | import_iris.Iris.time_fileformats_um_cf_map                                                            |
|          | 137±2μs                      | 136±0.6μs                 | 0.99    | import_iris.Iris.time_io                                                                               |
|          | 174±1μs                      | 171±2μs                   | 0.99    | import_iris.Iris.time_io_format_picker                                                                 |
|          | 231±2μs                      | 229±1μs                   | 0.99    | import_iris.Iris.time_iris                                                                             |
|          | 127±1μs                      | 128±3μs                   | 1.01    | import_iris.Iris.time_iterate                                                                          |
|          | 8.36±0.05ms                  | 8.40±0.03ms               | 1.00    | import_iris.Iris.time_palette                                                                          |
|          | 2.20±0.03ms                  | 2.24±0.05ms               | 1.02    | import_iris.Iris.time_plot                                                                             |
|          | 106±2μs                      | 104±2μs                   | 0.98    | import_iris.Iris.time_quickplot                                                                        |
|          | 2.18±0.02ms                  | 2.15±0.03ms               | 0.98    | import_iris.Iris.time_std_names                                                                        |
|          | 1.75±0.02ms                  | 1.76±0.01ms               | 1.01    | import_iris.Iris.time_symbols                                                                          |
|          | 34.8±0.8ms                   | 34.1±0.5ms                | 0.98    | import_iris.Iris.time_tests                                                                            |
|          | 255±3μs                      | 255±2μs                   | 1.00    | import_iris.Iris.time_third_party_cartopy                                                              |
|          | 4.83±0.03ms                  | 4.80±0.03ms               | 0.99    | import_iris.Iris.time_third_party_cf_units                                                             |
|          | 118±0.6μs                    | 120±0.8μs                 | 1.01    | import_iris.Iris.time_third_party_cftime                                                               |
|          | 2.78±0.01ms                  | 2.78±0.01ms               | 1.00    | import_iris.Iris.time_third_party_matplotlib                                                           |
|          | 1.07±0ms                     | 1.07±0.01ms               | 1.00    | import_iris.Iris.time_third_party_numpy                                                                |
|          | 170±1μs                      | 170±2μs                   | 1.00    | import_iris.Iris.time_third_party_scipy                                                                |
|          | 99.6±0.7μs                   | 100±0.8μs                 | 1.00    | import_iris.Iris.time_time                                                                             |
|          | 323±2μs                      | 318±3μs                   | 0.99    | import_iris.Iris.time_util                                                                             |
|          | 74.0±0.8μs                   | 73.3±2μs                  | 0.99    | iterate.IZip.time_izip                                                                                 |
|          | 8.03±0.1ms                   | 8.07±0.07ms               | 1.01    | load.LoadAndRealise.time_load((1280, 960, 5), False, 'FF')                                             |
|          | 23.8±0.4ms                   | 24.0±0.3ms                | 1.00    | load.LoadAndRealise.time_load((1280, 960, 5), False, 'NetCDF')                                         |
|          | 8.76±0.05ms                  | 8.86±0.08ms               | 1.01    | load.LoadAndRealise.time_load((1280, 960, 5), False, 'PP')                                             |
|          | 8.03±0.04ms                  | 8.11±0.08ms               | 1.01    | load.LoadAndRealise.time_load((1280, 960, 5), True, 'FF')                                              |
|          | 21.1±0.1ms                   | 21.5±0.2ms                | 1.02    | load.LoadAndRealise.time_load((1280, 960, 5), True, 'NetCDF')                                          |
|          | 8.76±0.03ms                  | 8.83±0.08ms               | 1.01    | load.LoadAndRealise.time_load((1280, 960, 5), True, 'PP')                                              |
|          | 1.34±0.01s                   | 1.35±0.02s                | 1.01    | load.LoadAndRealise.time_load((2, 2, 1000), False, 'FF')                                               |
|          | 20.8±0.3ms                   | 21.3±0.4ms                | 1.03    | load.LoadAndRealise.time_load((2, 2, 1000), False, 'NetCDF')                                           |
|          | 1.51±0.01s                   | 1.50±0.01s                | 0.99    | load.LoadAndRealise.time_load((2, 2, 1000), False, 'PP')                                               |
|          | 1.35±0.01s                   | 1.34±0.02s                | 1.00    | load.LoadAndRealise.time_load((2, 2, 1000), True, 'FF')                                                |
|          | 20.5±0.5ms                   | 21.1±0.3ms                | 1.03    | load.LoadAndRealise.time_load((2, 2, 1000), True, 'NetCDF')                                            |
|          | 1.50±0.01s                   | 1.52±0.01s                | 1.01    | load.LoadAndRealise.time_load((2, 2, 1000), True, 'PP')                                                |
|          | 3.88±0.01ms                  | 3.91±0.02ms               | 1.01    | load.LoadAndRealise.time_load((50, 50, 2), False, 'FF')                                                |
|          | 19.9±0.3ms                   | 20.3±0.5ms                | 1.02    | load.LoadAndRealise.time_load((50, 50, 2), False, 'NetCDF')                                            |
|          | 4.16±0.02ms                  | 4.17±0.02ms               | 1.00    | load.LoadAndRealise.time_load((50, 50, 2), False, 'PP')                                                |
|          | 3.88±0.02ms                  | 3.89±0.02ms               | 1.00    | load.LoadAndRealise.time_load((50, 50, 2), True, 'FF')                                                 |
|          | 19.5±0.3ms                   | 20.0±0.1ms                | 1.03    | load.LoadAndRealise.time_load((50, 50, 2), True, 'NetCDF')                                             |
|          | 4.15±0.06ms                  | 4.19±0.03ms               | 1.01    | load.LoadAndRealise.time_load((50, 50, 2), True, 'PP')                                                 |
|          | 31.7±3ms                     | 34.4±3ms                  | 1.08    | load.LoadAndRealise.time_realise((1280, 960, 5), False, 'FF')                                          |
|          | 19.9±0.5ms                   | 18.9±0.8ms                | 0.95    | load.LoadAndRealise.time_realise((1280, 960, 5), False, 'NetCDF')                                      |
|          | 14.0±1ms                     | 13.3±1ms                  | 0.95    | load.LoadAndRealise.time_realise((1280, 960, 5), False, 'PP')                                          |
|          | 26.2±2ms                     | 26.2±2ms                  | 1.00    | load.LoadAndRealise.time_realise((1280, 960, 5), True, 'FF')                                           |
|          | 71.3±2ms                     | 70.9±2ms                  | 0.99    | load.LoadAndRealise.time_realise((1280, 960, 5), True, 'NetCDF')                                       |
|          | 25.6±1ms                     | 25.6±2ms                  | 1.00    | load.LoadAndRealise.time_realise((1280, 960, 5), True, 'PP')                                           |
|          | 438±4ms                      | 435±3ms                   | 0.99    | load.LoadAndRealise.time_realise((2, 2, 1000), False, 'FF')                                            |
|          | 3.07±0.1ms                   | 2.95±0.1ms                | 0.96    | load.LoadAndRealise.time_realise((2, 2, 1000), False, 'NetCDF')                                        |
|          | 449±5ms                      | 445±2ms                   | 0.99    | load.LoadAndRealise.time_realise((2, 2, 1000), False, 'PP')                                            |
|          | 449±2ms                      | 444±2ms                   | 0.99    | load.LoadAndRealise.time_realise((2, 2, 1000), True, 'FF')                                             |
|          | 2.95±0.1ms                   | 2.90±0.09ms               | 0.98    | load.LoadAndRealise.time_realise((2, 2, 1000), True, 'NetCDF')                                         |
|          | 448±6ms                      | 450±1ms                   | 1.00    | load.LoadAndRealise.time_realise((2, 2, 1000), True, 'PP')                                             |
|          | 1.55±0.1ms                   | 1.58±0.09ms               | 1.02    | load.LoadAndRealise.time_realise((50, 50, 2), False, 'FF')                                             |
|          | 2.99±0.1ms                   | 3.01±0.1ms                | 1.01    | load.LoadAndRealise.time_realise((50, 50, 2), False, 'NetCDF')                                         |
|          | 1.59±0.08ms                  | 1.57±0.07ms               | 0.99    | load.LoadAndRealise.time_realise((50, 50, 2), False, 'PP')                                             |
|          | 1.55±0.09ms                  | 1.56±0.05ms               | 1.01    | load.LoadAndRealise.time_realise((50, 50, 2), True, 'FF')                                              |
|          | 3.09±0.1ms                   | 3.08±0.1ms                | 1.00    | load.LoadAndRealise.time_realise((50, 50, 2), True, 'NetCDF')                                          |
|          | 1.55±0.08ms                  | 1.55±0.08ms               | 1.00    | load.LoadAndRealise.time_realise((50, 50, 2), True, 'PP')                                              |
|          | 354±2ms                      | 372±2ms                   | 1.05    | load.ManyVars.time_many_var_load                                                                       |
|          | 8.18±0.03ms                  | 8.17±0.08ms               | 1.00    | load.STASHConstraint.time_stash_constraint((1280, 960, 5), 'FF')                                       |
|          | 8.98±0.03ms                  | 8.97±0.04ms               | 1.00    | load.STASHConstraint.time_stash_constraint((1280, 960, 5), 'PP')                                       |
|          | 1.36±0.01s                   | 1.38±0.01s                | 1.01    | load.STASHConstraint.time_stash_constraint((2, 2, 1000), 'FF')                                         |
|          | 1.54±0.01s                   | 1.53±0.01s                | 1.00    | load.STASHConstraint.time_stash_constraint((2, 2, 1000), 'PP')                                         |
|          | 3.97±0.03ms                  | 4.00±0.02ms               | 1.01    | load.STASHConstraint.time_stash_constraint((2, 2, 2), 'FF')                                            |
|          | 4.23±0.02ms                  | 4.23±0.02ms               | 1.00    | load.STASHConstraint.time_stash_constraint((2, 2, 2), 'PP')                                            |
|          | 8.03±0.02ms                  | 8.14±0.09ms               | 1.01    | load.StructuredFF.time_structured_load((1280, 960, 5), False)                                          |
|          | 4.73±0.03ms                  | 4.80±0.03ms               | 1.01    | load.StructuredFF.time_structured_load((1280, 960, 5), True)                                           |
|          | 1.34±0.01s                   | 1.34±0.01s                | 1.00    | load.StructuredFF.time_structured_load((2, 2, 1000), False)                                            |
|          | 364±4ms                      | 374±5ms                   | 1.03    | load.StructuredFF.time_structured_load((2, 2, 1000), True)                                             |
|          | 3.90±0.03ms                  | 3.94±0.06ms               | 1.01    | load.StructuredFF.time_structured_load((2, 2, 2), False)                                               |
|          | 3.52±0.02ms                  | 3.58±0.03ms               | 1.02    | load.StructuredFF.time_structured_load((2, 2, 2), True)                                                |
|          | 143±0.9ms                    | 148±2ms                   | 1.03    | load.TimeConstraint.time_time_constraint(20, 'FF')                                                     |
|          | 22.9±0.4ms                   | 23.5±0.4ms                | 1.03    | load.TimeConstraint.time_time_constraint(20, 'NetCDF')                                                 |
|          | 160±1ms                      | 163±1ms                   | 1.02    | load.TimeConstraint.time_time_constraint(20, 'PP')                                                     |
|          | 28.8±0.2ms                   | 29.4±0.09ms               | 1.02    | load.TimeConstraint.time_time_constraint(3, 'FF')                                                      |
|          | 22.6±0.1ms                   | 23.7±0.2ms                | 1.05    | load.TimeConstraint.time_time_constraint(3, 'NetCDF')                                                  |
|          | 31.2±0.3ms                   | 31.6±0.1ms                | 1.01    | load.TimeConstraint.time_time_constraint(3, 'PP')                                                      |
|          | 17.0±0.1ms                   | 17.6±0.2ms                | 1.03    | load.ugrid.BasicLoading.time_load_file(1)                                                              |
|          | 41.3±0.4ms                   | 42.2±0.5ms                | 1.02    | load.ugrid.BasicLoading.time_load_file(200000)                                                         |
|          | 13.9±0.2ms                   | 14.3±0.2ms                | 1.03    | load.ugrid.BasicLoading.time_load_mesh(1)                                                              |
|          | 22.6±0.4ms                   | 23.1±0.3ms                | 1.02    | load.ugrid.BasicLoading.time_load_mesh(200000)                                                         |
|          | 17.3±0.5ms                   | 17.9±0.3ms                | 1.03    | load.ugrid.BasicLoadingTime.time_load_file(1)                                                          |
|          | 20.2±0.4ms                   | 20.5±0.3ms                | 1.02    | load.ugrid.BasicLoadingTime.time_load_file(200000)                                                     |
|          | 14.0±0.4ms                   | 14.5±0.4ms                | 1.04    | load.ugrid.BasicLoadingTime.time_load_mesh(1)                                                          |
|          | 16.9±0.3ms                   | 17.4±0.6ms                | 1.03    | load.ugrid.BasicLoadingTime.time_load_mesh(200000)                                                     |
|          | 18.2±0.3ms                   | 18.8±0.3ms                | 1.04    | load.ugrid.Callback.time_load_file_callback(1)                                                         |
|          | 50.4±0.4ms                   | 51.2±0.5ms                | 1.02    | load.ugrid.Callback.time_load_file_callback(200000)                                                    |
|          | 18.1±0.2ms                   | 18.7±0.4ms                | 1.04    | load.ugrid.CallbackTime.time_load_file_callback(1)                                                     |
|          | 22.1±0.4ms                   | 22.9±0.3ms                | 1.04    | load.ugrid.CallbackTime.time_load_file_callback(200000)                                                |
|          | 2.85±0.08ms                  | 2.95±0.2ms                | 1.04    | load.ugrid.DataRealisation.time_realise_data(10000)                                                    |
|          | 3.90±0.9ms                   | 4.91±0.9ms                | ~1.26   | load.ugrid.DataRealisation.time_realise_data(200000)                                                   |
|          | 39.5±1ms                     | 38.7±2ms                  | 0.98    | load.ugrid.DataRealisationTime.time_realise_data(10000)                                                |
|          | 815±10ms                     | 815±10ms                  | 1.00    | load.ugrid.DataRealisationTime.time_realise_data(200000)                                               |
|          | 120±1ms                      | 120±2ms                   | 1.00    | merge_concat.Concatenate.time_concatenate                                                              |
|          | 24.1                         | 24.0                      | 1.00    | merge_concat.Concatenate.track_mem_merge                                                               |
|          | 49.3±1ms                     | 47.9±0.5ms                | 0.97    | merge_concat.Merge.time_merge                                                                          |
|          | 10.9                         | 11.0                      | 1.01    | merge_concat.Merge.track_mem_merge                                                                     |
|          | 6.55±0.04ms                  | 6.57±0.1ms                | 1.00    | plot.AuxSort.time_aux_sort                                                                             |
|          | 79.6±2ms                     | 78.4±6ms                  | 0.99    | regridding.CurvilinearRegridding.time_regrid_pic                                                       |
|          | 144.8                        | 144.9                     | 1.00    | regridding.CurvilinearRegridding.track_mem_regrid_pic                                                  |
|          | 97.7±0.8ms                   | 98.1±0.5ms                | 1.00    | regridding.HorizontalChunkedRegridding.time_regrid_area_w                                              |
|          | 50.6±2ms                     | 51.1±2ms                  | 1.01    | regridding.HorizontalChunkedRegridding.time_regrid_area_w_new_grid                                     |
|          | 111.5                        | 111.6                     | 1.00    | regridding.HorizontalChunkedRegridding.track_mem_regrid_area_w                                         |
|          | 150.6                        | 150.6                     | 1.00    | regridding.HorizontalChunkedRegridding.track_mem_regrid_area_w_new_grid                                |
|          | 4.06±0.04ms                  | 4.05±0.02ms               | 1.00    | save.NetcdfSave.time_netcdf_save_cube(50, False)                                                       |
|          | 72.3±1ms                     | 72.1±1ms                  | 1.00    | save.NetcdfSave.time_netcdf_save_cube(50, True)                                                        |
|          | 53.0±0.7ms                   | 52.2±0.7ms                | 0.98    | save.NetcdfSave.time_netcdf_save_cube(600, False)                                                      |
|          | 571±4ms                      | 566±4ms                   | 0.99    | save.NetcdfSave.time_netcdf_save_cube(600, True)                                                       |
|          | 89.5±0.3ns                   | 89.2±3ns                  | 1.00    | save.NetcdfSave.time_netcdf_save_mesh(50, False)                                                       |
|          | 55.6±0.6ms                   | 55.5±0.6ms                | 1.00    | save.NetcdfSave.time_netcdf_save_mesh(50, True)                                                        |
|          | 90.3±0.5ns                   | 90.6±3ns                  | 1.00    | save.NetcdfSave.time_netcdf_save_mesh(600, False)                                                      |
|          | 502±4ms                      | 501±4ms                   | 1.00    | save.NetcdfSave.time_netcdf_save_mesh(600, True)                                                       |
|          | 0.3                          | 0.3                       | 1.00    | save.NetcdfSave.track_addedmem_netcdf_save(50, False)                                                  |
|          | 1.7                          | 1.7                       | 1.00    | save.NetcdfSave.track_addedmem_netcdf_save(50, True)                                                   |
|          | 0.3                          | 0.3                       | 1.00    | save.NetcdfSave.track_addedmem_netcdf_save(600, False)                                                 |
|          | 42.5±0.9ms                   | 42.0±0.5ms                | 0.99    | stats.PearsonR.time_lazy                                                                               |
|          | 19.3±0.4ms                   | 18.9±0.3ms                | 0.98    | stats.PearsonR.time_real                                                                               |
|          | 19.5                         | 19.6                      | 1.01    | stats.PearsonR.track_lazy                                                                              |
|          | 17.8                         | 17.8                      | 1.00    | stats.PearsonR.track_real                                                                              |
|          | 22.8±0.7ms                   | 23.1±0.8ms                | 1.01    | trajectory.TrajectoryInterpolation.time_trajectory_linear                                              |
|          | 61.5±0.5ms                   | 61.4±0.6ms                | 1.00    | trajectory.TrajectoryInterpolation.time_trajectory_nearest                                             |
|          | 32.2                         | 32.2                      | 1.00    | trajectory.TrajectoryInterpolation.track_trajectory_linear                                             |
|          | 21.6                         | 21.6                      | 1.00    | trajectory.TrajectoryInterpolation.track_trajectory_nearest                                            |

Benchmarks that have got worse:

| Change   |   Before [ee6f1868] <main~1> |   After [38e5a230] <main> |   Ratio | Benchmark (Parameter)                                 |
|----------|------------------------------|---------------------------|---------|-------------------------------------------------------|
| +        |                        165.2 |                     231.1 |     1.4 | save.NetcdfSave.track_addedmem_netcdf_save(600, True) |

Generated by GHA run 10015349905