Improve memory load for map_complete_blocks #6730

stephenworsley · 2025-09-29T21:11:22Z

🚀 Pull Request

Closes #3808.

CLAassistant · 2025-09-29T21:11:29Z

All committers have signed the CLA.

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…mplete_memory # Conflicts: # lib/iris/_lazy_data.py

codecov · 2025-10-07T08:52:20Z

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.30%. Comparing base (fa6d61d) to head (a19ba7a).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff            @@
##             main    #6730    +/-   ##
========================================
  Coverage   90.29%   90.30%            
========================================
  Files          91       91            
  Lines       24475    24671   +196     
  Branches     4571     4622    +51     
========================================
+ Hits        22100    22279   +179     
- Misses       1607     1620    +13     
- Partials      768      772     +4

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…mplete_memory

pp-mo

Looks good !
Made some very minor suggestions for clarity.

lib/iris/_lazy_data.py

lib/iris/tests/unit/lazy_data/test_map_complete_blocks.py

Co-authored-by: Patrick Peglar <[email protected]>

for more information, see https://pre-commit.ci

github-actions · 2025-10-23T16:10:06Z

⏱️ Performance Benchmark Report: `664e080`

Performance shifts

Full benchmark results


Benchmarks that have stayed the same:

| Change   | Before [9c06cca1]    | After [664e080b]    |   Ratio | Benchmark (Parameter)                                                                       |
|----------|----------------------|---------------------|---------|---------------------------------------------------------------------------------------------|
|          | 20.3±0.2ms           | 20.6±0.1ms          |    1.02 | aggregate_collapse.Aggregation.time_aggregated_by_COUNT(False)                              |
|          | 54.5±0.7ms           | 55.8±0.8ms          |    1.02 | aggregate_collapse.Aggregation.time_aggregated_by_COUNT(True)                               |
|          | 34.1±0.4ms           | 34.9±0.2ms          |    1.02 | aggregate_collapse.Aggregation.time_aggregated_by_FAST_PERCENTILE(False)                    |
|          | 190±1ms              | 192±2ms             |    1.01 | aggregate_collapse.Aggregation.time_aggregated_by_FAST_PERCENTILE(True)                     |
|          | 22.4±0.2ms           | 22.8±0.3ms          |    1.02 | aggregate_collapse.Aggregation.time_aggregated_by_GMEAN(False)                              |
|          | 34.1±0.3ms           | 34.2±0.4ms          |    1    | aggregate_collapse.Aggregation.time_aggregated_by_GMEAN(True)                               |
|          | 22.4±0.2ms           | 22.8±0.09ms         |    1.02 | aggregate_collapse.Aggregation.time_aggregated_by_HMEAN(False)                              |
|          | 34.2±0.4ms           | 34.5±0.4ms          |    1.01 | aggregate_collapse.Aggregation.time_aggregated_by_HMEAN(True)                               |
|          | 20.2±0.2ms           | 20.6±0.2ms          |    1.02 | aggregate_collapse.Aggregation.time_aggregated_by_MAX(False)                                |
|          | 46.7±0.6ms           | 47.7±0.7ms          |    1.02 | aggregate_collapse.Aggregation.time_aggregated_by_MAX(True)                                 |
|          | 124±0.6ms            | 125±0.8ms           |    1.01 | aggregate_collapse.Aggregation.time_aggregated_by_MAX_RUN(False)                            |
|          | 128±0.8ms            | 128±0.8ms           |    1    | aggregate_collapse.Aggregation.time_aggregated_by_MAX_RUN(True)                             |
|          | 21.2±0.08ms          | 21.7±0.3ms          |    1.02 | aggregate_collapse.Aggregation.time_aggregated_by_MEAN(False)                               |
|          | 50.0±1ms             | 51.4±0.5ms          |    1.03 | aggregate_collapse.Aggregation.time_aggregated_by_MEAN(True)                                |
|          | 22.6±0.2ms           | 23.2±0.2ms          |    1.03 | aggregate_collapse.Aggregation.time_aggregated_by_MEDIAN(False)                             |
|          | 60.1±2ms             | 60.4±0.7ms          |    1.01 | aggregate_collapse.Aggregation.time_aggregated_by_MEDIAN(True)                              |
|          | 20.3±0.2ms           | 20.5±0.2ms          |    1.01 | aggregate_collapse.Aggregation.time_aggregated_by_MIN(False)                                |
|          | 46.7±0.9ms           | 47.6±0.8ms          |    1.02 | aggregate_collapse.Aggregation.time_aggregated_by_MIN(True)                                 |
|          | 1.06±0.01s           | 1.07±0s             |    1.01 | aggregate_collapse.Aggregation.time_aggregated_by_PEAK(False)                               |
|          | 1.06±0.01s           | 1.08±0.01s          |    1.02 | aggregate_collapse.Aggregation.time_aggregated_by_PEAK(True)                                |
|          | 211±2ms              | 214±3ms             |    1.01 | aggregate_collapse.Aggregation.time_aggregated_by_PERCENTILE(False)                         |
|          | 362±5ms              | 369±10ms            |    1.02 | aggregate_collapse.Aggregation.time_aggregated_by_PERCENTILE(True)                          |
|          | 21.2±0.2ms           | 21.8±0.2ms          |    1.03 | aggregate_collapse.Aggregation.time_aggregated_by_PROPORTION(False)                         |
|          | 32.3±0.4ms           | 33.4±0.5ms          |    1.03 | aggregate_collapse.Aggregation.time_aggregated_by_PROPORTION(True)                          |
|          | 21.6±0.4ms           | 22.1±0.1ms          |    1.02 | aggregate_collapse.Aggregation.time_aggregated_by_RMS(False)                                |
|          | 61.3±1ms             | 62.6±1ms            |    1.02 | aggregate_collapse.Aggregation.time_aggregated_by_RMS(True)                                 |
|          | 22.3±0.1ms           | 23.0±0.2ms          |    1.03 | aggregate_collapse.Aggregation.time_aggregated_by_STD_DEV(False)                            |
|          | 63.4±0.9ms           | 64.2±0.9ms          |    1.01 | aggregate_collapse.Aggregation.time_aggregated_by_STD_DEV(True)                             |
|          | 22.2±0.2ms           | 22.6±0.3ms          |    1.02 | aggregate_collapse.Aggregation.time_aggregated_by_VARIANCE(False)                           |
|          | 60.0±1ms             | 60.7±0.7ms          |    1.01 | aggregate_collapse.Aggregation.time_aggregated_by_VARIANCE(True)                            |
|          | 7.85±0.08ms          | 7.94±0.09ms         |    1.01 | aggregate_collapse.Aggregation.time_collapsed_by_COUNT(False)                               |
|          | 24.6±0.5ms           | 25.0±0.8ms          |    1.01 | aggregate_collapse.Aggregation.time_collapsed_by_COUNT(True)                                |
|          | 19.8±0.2ms           | 19.9±0.3ms          |    1.01 | aggregate_collapse.Aggregation.time_collapsed_by_FAST_PERCENTILE(False)                     |
|          | 148±0.9ms            | 148±1ms             |    1    | aggregate_collapse.Aggregation.time_collapsed_by_FAST_PERCENTILE(True)                      |
|          | 8.20±0.1ms           | 8.31±0.07ms         |    1.01 | aggregate_collapse.Aggregation.time_collapsed_by_GMEAN(False)                               |
|          | 22.5±0.4ms           | 23.0±0.7ms          |    1.02 | aggregate_collapse.Aggregation.time_collapsed_by_GMEAN(True)                                |
|          | 8.05±0.08ms          | 8.25±0.09ms         |    1.02 | aggregate_collapse.Aggregation.time_collapsed_by_HMEAN(False)                               |
|          | 22.8±0.3ms           | 22.8±0.4ms          |    1    | aggregate_collapse.Aggregation.time_collapsed_by_HMEAN(True)                                |
|          | 7.68±0.06ms          | 7.73±0.05ms         |    1.01 | aggregate_collapse.Aggregation.time_collapsed_by_MAX(False)                                 |
|          | 23.2±0.3ms           | 23.4±0.4ms          |    1.01 | aggregate_collapse.Aggregation.time_collapsed_by_MAX(True)                                  |
|          | 23.8±0.1ms           | 24.4±0.2ms          |    1.02 | aggregate_collapse.Aggregation.time_collapsed_by_MAX_RUN(False)                             |
|          | 36.7±0.5ms           | 37.3±0.5ms          |    1.02 | aggregate_collapse.Aggregation.time_collapsed_by_MAX_RUN(True)                              |
|          | 7.98±0.09ms          | 8.12±0.05ms         |    1.02 | aggregate_collapse.Aggregation.time_collapsed_by_MEAN(False)                                |
|          | 23.2±0.4ms           | 23.6±0.3ms          |    1.02 | aggregate_collapse.Aggregation.time_collapsed_by_MEAN(True)                                 |
|          | 9.04±0.09ms          | 9.02±0.08ms         |    1    | aggregate_collapse.Aggregation.time_collapsed_by_MEDIAN(False)                              |
|          | 25.8±0.5ms           | 25.9±0.3ms          |    1.01 | aggregate_collapse.Aggregation.time_collapsed_by_MEDIAN(True)                               |
|          | 7.67±0.08ms          | 7.79±0.1ms          |    1.02 | aggregate_collapse.Aggregation.time_collapsed_by_MIN(False)                                 |
|          | 22.8±0.2ms           | 23.6±0.4ms          |    1.04 | aggregate_collapse.Aggregation.time_collapsed_by_MIN(True)                                  |
|          | 526±4ms              | 528±4ms             |    1    | aggregate_collapse.Aggregation.time_collapsed_by_PEAK(False)                                |
|          | 537±1ms              | 538±2ms             |    1    | aggregate_collapse.Aggregation.time_collapsed_by_PEAK(True)                                 |
|          | 44.6±0.3ms           | 45.5±0.8ms          |    1.02 | aggregate_collapse.Aggregation.time_collapsed_by_PERCENTILE(False)                          |
|          | 156±0.7ms            | 159±2ms             |    1.02 | aggregate_collapse.Aggregation.time_collapsed_by_PERCENTILE(True)                           |
|          | 7.97±0.08ms          | 8.06±0.1ms          |    1.01 | aggregate_collapse.Aggregation.time_collapsed_by_PROPORTION(False)                          |
|          | 22.5±0.3ms           | 22.5±0.4ms          |    1    | aggregate_collapse.Aggregation.time_collapsed_by_PROPORTION(True)                           |
|          | 7.97±0.07ms          | 8.06±0.05ms         |    1.01 | aggregate_collapse.Aggregation.time_collapsed_by_RMS(False)                                 |
|          | 25.4±0.4ms           | 25.7±0.5ms          |    1.01 | aggregate_collapse.Aggregation.time_collapsed_by_RMS(True)                                  |
|          | 8.18±0.03ms          | 8.36±0.1ms          |    1.02 | aggregate_collapse.Aggregation.time_collapsed_by_STD_DEV(False)                             |
|          | 24.5±0.2ms           | 24.9±0.3ms          |    1.02 | aggregate_collapse.Aggregation.time_collapsed_by_STD_DEV(True)                              |
|          | 8.25±0.1ms           | 8.38±0.05ms         |    1.02 | aggregate_collapse.Aggregation.time_collapsed_by_VARIANCE(False)                            |
|          | 24.3±0.2ms           | 24.6±0.5ms          |    1.01 | aggregate_collapse.Aggregation.time_collapsed_by_VARIANCE(True)                             |
|          | 21.8±0.09ms          | 22.0±0.2ms          |    1.01 | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_MEAN(False)                     |
|          | 83.7±0.7ms           | 84.3±1ms            |    1.01 | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_MEAN(True)                      |
|          | 21.8±0.09ms          | 22.6±0.3ms          |    1.03 | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_RMS(False)                      |
|          | 95.5±1ms             | 97.1±1ms            |    1.02 | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_RMS(True)                       |
|          | 20.6±0.1ms           | 21.0±0.1ms          |    1.02 | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_SUM(False)                      |
|          | 57.5±0.6ms           | 58.9±1ms            |    1.02 | aggregate_collapse.WeightedAggregation.time_w_aggregated_by_SUM(True)                       |
|          | 8.24±0.09ms          | 8.39±0.1ms          |    1.02 | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_MEAN(False)                      |
|          | 29.7±0.7ms           | 30.5±0.9ms          |    1.03 | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_MEAN(True)                       |
|          | 8.13±0.1ms           | 8.20±0.07ms         |    1.01 | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_RMS(False)                       |
|          | 30.5±1ms             | 31.9±0.6ms          |    1.05 | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_RMS(True)                        |
|          | 7.90±0.1ms           | 8.05±0.1ms          |    1.02 | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_SUM(False)                       |
|          | 25.5±0.5ms           | 26.3±0.4ms          |    1.03 | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_SUM(True)                        |
|          | 219±2ms              | 221±3ms             |    1.01 | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_WPERCENTILE(False)               |
|          | 304±2ms              | 305±4ms             |    1    | aggregate_collapse.WeightedAggregation.time_w_collapsed_by_WPERCENTILE(True)                |
|          | 1.10±0.01ms          | 1.09±0.01ms         |    1    | cube.CubeCreation.time_create(False, 'construct')                                           |
|          | 381±4μs              | 386±5μs             |    1.01 | cube.CubeCreation.time_create(False, 'instantiate')                                         |
|          | 1.93±0.01ms          | 1.95±0.03ms         |    1.01 | cube.CubeCreation.time_create(True, 'construct')                                            |
|          | 1.35±0.01ms          | 1.38±0.01ms         |    1.02 | cube.CubeCreation.time_create(True, 'instantiate')                                          |
|          | 86.2±0.9ms           | 86.3±2ms            |    1    | cube.CubeEquality.time_equality(False, False, 'all_equal')                                  |
|          | 24.1±0.3ms           | 24.8±1ms            |    1.03 | cube.CubeEquality.time_equality(False, False, 'coord_inequality')                           |
|          | 101±0.9ms            | 101±1ms             |    0.99 | cube.CubeEquality.time_equality(False, False, 'data_inequality')                            |
|          | 16.5±0.1μs           | 16.4±0.4μs          |    0.99 | cube.CubeEquality.time_equality(False, False, 'metadata_inequality')                        |
|          | 91.3±1ms             | 92.6±1ms            |    1.01 | cube.CubeEquality.time_equality(False, True, 'all_equal')                                   |
|          | 27.8±0.8ms           | 28.1±0.5ms          |    1.01 | cube.CubeEquality.time_equality(False, True, 'coord_inequality')                            |
|          | 105±1ms              | 105±1ms             |    1    | cube.CubeEquality.time_equality(False, True, 'data_inequality')                             |
|          | 16.4±0.3μs           | 16.1±0.2μs          |    0.98 | cube.CubeEquality.time_equality(False, True, 'metadata_inequality')                         |
|          | 194±1ms              | 197±2ms             |    1.01 | cube.CubeEquality.time_equality(True, False, 'all_equal')                                   |
|          | 78.9±0.7ms           | 80.7±1ms            |    1.02 | cube.CubeEquality.time_equality(True, False, 'coord_inequality')                            |
|          | 223±0.9ms            | 225±2ms             |    1.01 | cube.CubeEquality.time_equality(True, False, 'data_inequality')                             |
|          | 51.1±1μs             | 51.0±0.7μs          |    1    | cube.CubeEquality.time_equality(True, False, 'metadata_inequality')                         |
|          | 287±2ms              | 288±1ms             |    1.01 | cube.CubeEquality.time_equality(True, True, 'all_equal')                                    |
|          | 172±2ms              | 173±0.9ms           |    1    | cube.CubeEquality.time_equality(True, True, 'coord_inequality')                             |
|          | 317±1ms              | 319±3ms             |    1.01 | cube.CubeEquality.time_equality(True, True, 'data_inequality')                              |
|          | 363±4μs              | 366±5μs             |    1.01 | cube.CubeEquality.time_equality(True, True, 'metadata_inequality')                          |
|          | 793±10μs             | 796±20μs            |    1    | import_iris.Iris.time__concatenate                                                          |
|          | 184±1μs              | 183±0.8μs           |    1    | import_iris.Iris.time__constraints                                                          |
|          | 114±0.9μs            | 115±3μs             |    1.01 | import_iris.Iris.time__data_manager                                                         |
|          | 91.4±0.6μs           | 90.8±0.9μs          |    0.99 | import_iris.Iris.time__deprecation                                                          |
|          | 161±1μs              | 167±0.9μs           |    1.04 | import_iris.Iris.time__lazy_data                                                            |
|          | 887±5μs              | 888±3μs             |    1    | import_iris.Iris.time__merge                                                                |
|          | 74.4±0.4μs           | 74.0±0.9μs          |    1    | import_iris.Iris.time__representation                                                       |
|          | 604±5μs              | 606±3μs             |    1    | import_iris.Iris.time_analysis                                                              |
|          | 140±3μs              | 142±1μs             |    1.02 | import_iris.Iris.time_analysis__area_weighted                                               |
|          | 107±2μs              | 108±2μs             |    1.01 | import_iris.Iris.time_analysis__grid_angles                                                 |
|          | 249±3μs              | 248±2μs             |    0.99 | import_iris.Iris.time_analysis__interpolation                                               |
|          | 194±2μs              | 192±1μs             |    0.99 | import_iris.Iris.time_analysis__regrid                                                      |
|          | 108±0.7μs            | 110±0.9μs           |    1.01 | import_iris.Iris.time_analysis__scipy_interpolate                                           |
|          | 141±3μs              | 138±1μs             |    0.98 | import_iris.Iris.time_analysis_calculus                                                     |
|          | 326±2μs              | 328±2μs             |    1.01 | import_iris.Iris.time_analysis_cartography                                                  |
|          | 92.3±0.7μs           | 91.3±1μs            |    0.99 | import_iris.Iris.time_analysis_geomerty                                                     |
|          | 212±2μs              | 216±0.8μs           |    1.02 | import_iris.Iris.time_analysis_maths                                                        |
|          | 94.8±0.5μs           | 95.1±0.7μs          |    1    | import_iris.Iris.time_analysis_stats                                                        |
|          | 171±1μs              | 172±1μs             |    1    | import_iris.Iris.time_analysis_trajectory                                                   |
|          | 315±3μs              | 318±3μs             |    1.01 | import_iris.Iris.time_aux_factory                                                           |
|          | 81.3±0.5μs           | 81.1±0.3μs          |    1    | import_iris.Iris.time_common                                                                |
|          | 161±2μs              | 160±1μs             |    0.99 | import_iris.Iris.time_common_lenient                                                        |
|          | 1.34±0.02ms          | 1.33±0.01ms         |    0.99 | import_iris.Iris.time_common_metadata                                                       |
|          | 168±1μs              | 168±0.9μs           |    1    | import_iris.Iris.time_common_mixin                                                          |
|          | 1.15±0ms             | 1.15±0ms            |    1    | import_iris.Iris.time_common_resolve                                                        |
|          | 195±1μs              | 197±2μs             |    1.01 | import_iris.Iris.time_config                                                                |
|          | 129±0.7μs            | 128±0.5μs           |    0.99 | import_iris.Iris.time_coord_categorisation                                                  |
|          | 376±3μs              | 379±3μs             |    1.01 | import_iris.Iris.time_coord_systems                                                         |
|          | 766±3μs              | 769±10μs            |    1    | import_iris.Iris.time_coords                                                                |
|          | 680±4μs              | 688±6μs             |    1.01 | import_iris.Iris.time_cube                                                                  |
|          | 242±1μs              | 238±2μs             |    0.99 | import_iris.Iris.time_exceptions                                                            |
|          | 74.1±0.9μs           | 73.5±1μs            |    0.99 | import_iris.Iris.time_experimental                                                          |
|          | 178±0.9μs            | 181±1μs             |    1.02 | import_iris.Iris.time_fileformats                                                           |
|          | 257±4μs              | 256±2μs             |    1    | import_iris.Iris.time_fileformats__ff                                                       |
|          | 2.51±0.01ms          | 2.52±0.01ms         |    1    | import_iris.Iris.time_fileformats__ff_cross_references                                      |
|          | 76.5±0.9μs           | 77.6±2μs            |    1.01 | import_iris.Iris.time_fileformats__pp_lbproc_pairs                                          |
|          | 111±0.8μs            | 114±1μs             |    1.02 | import_iris.Iris.time_fileformats_abf                                                       |
|          | 438±3μs              | 439±3μs             |    1    | import_iris.Iris.time_fileformats_cf                                                        |
|          | 4.68±0.03ms          | 4.70±0.05ms         |    1.01 | import_iris.Iris.time_fileformats_dot                                                       |
|          | 71.6±0.6μs           | 71.2±1μs            |    0.99 | import_iris.Iris.time_fileformats_name                                                      |
|          | 250±2μs              | 255±2μs             |    1.02 | import_iris.Iris.time_fileformats_name_loaders                                              |
|          | 114±0.9μs            | 115±1μs             |    1.01 | import_iris.Iris.time_fileformats_netcdf                                                    |
|          | 124±3μs              | 120±0.8μs           |    0.97 | import_iris.Iris.time_fileformats_nimrod                                                    |
|          | 211±1μs              | 206±2μs             |    0.98 | import_iris.Iris.time_fileformats_nimrod_load_rules                                         |
|          | 786±7μs              | 797±8μs             |    1.01 | import_iris.Iris.time_fileformats_pp                                                        |
|          | 180±1μs              | 181±2μs             |    1    | import_iris.Iris.time_fileformats_pp_load_rules                                             |
|          | 136±4μs              | 137±1μs             |    1.01 | import_iris.Iris.time_fileformats_pp_save_rules                                             |
|          | 539±8μs              | 539±4μs             |    1    | import_iris.Iris.time_fileformats_rules                                                     |
|          | 221±2μs              | 219±1μs             |    0.99 | import_iris.Iris.time_fileformats_structured_array_identification                           |
|          | 80.7±1μs             | 80.6±0.3μs          |    1    | import_iris.Iris.time_fileformats_um                                                        |
|          | 161±3μs              | 157±1μs             |    0.98 | import_iris.Iris.time_fileformats_um__fast_load                                             |
|          | 139±2μs              | 138±1μs             |    0.99 | import_iris.Iris.time_fileformats_um__fast_load_structured_fields                           |
|          | 72.5±0.6μs           | 73.1±0.2μs          |    1.01 | import_iris.Iris.time_fileformats_um__ff_replacement                                        |
|          | 78.2±0.4μs           | 80.4±0.9μs          |    1.03 | import_iris.Iris.time_fileformats_um__optimal_array_structuring                             |
|          | 954±20μs             | 945±5μs             |    0.99 | import_iris.Iris.time_fileformats_um_cf_map                                                 |
|          | 138±2μs              | 138±3μs             |    1    | import_iris.Iris.time_io                                                                    |
|          | 173±2μs              | 174±1μs             |    1    | import_iris.Iris.time_io_format_picker                                                      |
|          | 217±3μs              | 210±0.9μs           |    0.97 | import_iris.Iris.time_iris                                                                  |
|          | 128±5μs              | 125±0.9μs           |    0.98 | import_iris.Iris.time_iterate                                                               |
|          | 7.97±0.03ms          | 8.08±0.05ms         |    1.01 | import_iris.Iris.time_palette                                                               |
|          | 1.77±0.01ms          | 1.79±0.01ms         |    1.01 | import_iris.Iris.time_plot                                                                  |
|          | 215±0.4μs            | 219±2μs             |    1.02 | import_iris.Iris.time_quickplot                                                             |
|          | 2.11±0.02ms          | 2.14±0.04ms         |    1.01 | import_iris.Iris.time_std_names                                                             |
|          | 1.82±0.01ms          | 1.81±0.01ms         |    1    | import_iris.Iris.time_symbols                                                               |
|          | 96.2±10ms            | 93.5±4ms            |    0.97 | import_iris.Iris.time_tests                                                                 |
|          | 254±1μs              | 254±2μs             |    1    | import_iris.Iris.time_third_party_cartopy                                                   |
|          | 5.10±0.02ms          | 5.04±0.03ms         |    0.99 | import_iris.Iris.time_third_party_cf_units                                                  |
|          | 117±0.3μs            | 117±0.5μs           |    1    | import_iris.Iris.time_third_party_cftime                                                    |
|          | 2.68±0.04ms          | 2.70±0.03ms         |    1.01 | import_iris.Iris.time_third_party_matplotlib                                                |
|          | 1.32±0.02ms          | 1.31±0ms            |    0.99 | import_iris.Iris.time_third_party_numpy                                                     |
|          | 168±1μs              | 168±0.8μs           |    1    | import_iris.Iris.time_third_party_scipy                                                     |
|          | 98.5±0.9μs           | 99.9±0.8μs          |    1.01 | import_iris.Iris.time_time                                                                  |
|          | 845±4μs              | 854±5μs             |    1.01 | import_iris.Iris.time_util                                                                  |
|          | 70.8±1μs             | 72.1±1μs            |    1.02 | iterate.IZip.time_izip                                                                      |
|          | 9.79±0.1ms           | 10.1±0.07ms         |    1.03 | load.LoadAndRealise.time_load((1280, 960, 5), False, 'FF')                                  |
|          | 18.5±0.4ms           | 18.3±0.4ms          |    0.98 | load.LoadAndRealise.time_load((1280, 960, 5), False, 'NetCDF')                              |
|          | 9.86±0.2ms           | 10.1±0.09ms         |    1.02 | load.LoadAndRealise.time_load((1280, 960, 5), False, 'PP')                                  |
|          | 9.77±0.2ms           | 9.97±0.07ms         |    1.02 | load.LoadAndRealise.time_load((1280, 960, 5), True, 'FF')                                   |
|          | 15.4±0.2ms           | 15.5±0.1ms          |    1    | load.LoadAndRealise.time_load((1280, 960, 5), True, 'NetCDF')                               |
|          | 9.81±0.1ms           | 10.3±0.2ms          |    1.05 | load.LoadAndRealise.time_load((1280, 960, 5), True, 'PP')                                   |
|          | 1.49±0.02s           | 1.51±0.01s          |    1.02 | load.LoadAndRealise.time_load((2, 2, 1000), False, 'FF')                                    |
|          | 14.6±0.07ms          | 14.4±0.09ms         |    0.98 | load.LoadAndRealise.time_load((2, 2, 1000), False, 'NetCDF')                                |
|          | 1.49±0.02s           | 1.53±0.01s          |    1.03 | load.LoadAndRealise.time_load((2, 2, 1000), False, 'PP')                                    |
|          | 1.48±0.01s           | 1.51±0s             |    1.02 | load.LoadAndRealise.time_load((2, 2, 1000), True, 'FF')                                     |
|          | 14.2±0.09ms          | 14.8±0.2ms          |    1.04 | load.LoadAndRealise.time_load((2, 2, 1000), True, 'NetCDF')                                 |
|          | 1.50±0.01s           | 1.53±0.01s          |    1.02 | load.LoadAndRealise.time_load((2, 2, 1000), True, 'PP')                                     |
|          | 5.27±0.04ms          | 5.45±0.08ms         |    1.04 | load.LoadAndRealise.time_load((50, 50, 2), False, 'FF')                                     |
|          | 14.3±0.07ms          | 14.3±0.1ms          |    1    | load.LoadAndRealise.time_load((50, 50, 2), False, 'NetCDF')                                 |
|          | 5.28±0.04ms          | 5.34±0.05ms         |    1.01 | load.LoadAndRealise.time_load((50, 50, 2), False, 'PP')                                     |
|          | 5.25±0.03ms          | 5.38±0.03ms         |    1.02 | load.LoadAndRealise.time_load((50, 50, 2), True, 'FF')                                      |
|          | 14.2±0.09ms          | 14.2±0.07ms         |    1    | load.LoadAndRealise.time_load((50, 50, 2), True, 'NetCDF')                                  |
|          | 5.20±0.1ms           | 5.30±0.02ms         |    1.02 | load.LoadAndRealise.time_load((50, 50, 2), True, 'PP')                                      |
|          | 23.0±0.8ms           | 25.4±1ms            |    1.1  | load.LoadAndRealise.time_realise((1280, 960, 5), False, 'FF')                               |
|          | 25.7±0.4ms           | 26.4±0.8ms          |    1.03 | load.LoadAndRealise.time_realise((1280, 960, 5), False, 'NetCDF')                           |
|          | 12.0±1ms             | 12.4±1ms            |    1.03 | load.LoadAndRealise.time_realise((1280, 960, 5), False, 'PP')                               |
|          | 28.2±1ms             | 28.4±1ms            |    1.01 | load.LoadAndRealise.time_realise((1280, 960, 5), True, 'FF')                                |
|          | 95.7±0.8ms           | 95.4±0.4ms          |    1    | load.LoadAndRealise.time_realise((1280, 960, 5), True, 'NetCDF')                            |
|          | 27.9±1ms             | 27.9±1ms            |    1    | load.LoadAndRealise.time_realise((1280, 960, 5), True, 'PP')                                |
|          | 596±5ms              | 596±2ms             |    1    | load.LoadAndRealise.time_realise((2, 2, 1000), False, 'FF')                                 |
|          | 5.30±0.1ms           | 5.31±0.07ms         |    1    | load.LoadAndRealise.time_realise((2, 2, 1000), False, 'NetCDF')                             |
|          | 599±3ms              | 600±3ms             |    1    | load.LoadAndRealise.time_realise((2, 2, 1000), False, 'PP')                                 |
|          | 605±3ms              | 605±2ms             |    1    | load.LoadAndRealise.time_realise((2, 2, 1000), True, 'FF')                                  |
|          | 5.36±0.08ms          | 5.35±0.04ms         |    1    | load.LoadAndRealise.time_realise((2, 2, 1000), True, 'NetCDF')                              |
|          | 599±1ms              | 602±4ms             |    1.01 | load.LoadAndRealise.time_realise((2, 2, 1000), True, 'PP')                                  |
|          | 2.06±0.06ms          | 2.02±0.04ms         |    0.98 | load.LoadAndRealise.time_realise((50, 50, 2), False, 'FF')                                  |
|          | 5.27±0.06ms          | 5.30±0.2ms          |    1    | load.LoadAndRealise.time_realise((50, 50, 2), False, 'NetCDF')                              |
|          | 2.02±0.05ms          | 2.07±0.05ms         |    1.03 | load.LoadAndRealise.time_realise((50, 50, 2), False, 'PP')                                  |
|          | 2.05±0.07ms          | 2.09±0.07ms         |    1.02 | load.LoadAndRealise.time_realise((50, 50, 2), True, 'FF')                                   |
|          | 5.34±0.04ms          | 5.36±0.08ms         |    1    | load.LoadAndRealise.time_realise((50, 50, 2), True, 'NetCDF')                               |
|          | 2.04±0.05ms          | 2.03±0.01ms         |    0.99 | load.LoadAndRealise.time_realise((50, 50, 2), True, 'PP')                                   |
|          | 337±5ms              | 343±4ms             |    1.02 | load.ManyCubes.time_many_cube_load                                                          |
|          | 89.5±0.7ms           | 89.6±1ms            |    1    | load.ManyVars.time_many_var_load                                                            |
|          | 9.87±0.2ms           | 10.1±0.2ms          |    1.02 | load.STASHConstraint.time_stash_constraint((1280, 960, 5), 'FF')                            |
|          | 9.98±0.04ms          | 10.3±0.1ms          |    1.03 | load.STASHConstraint.time_stash_constraint((1280, 960, 5), 'PP')                            |
|          | 1.49±0.01s           | 1.54±0.01s          |    1.03 | load.STASHConstraint.time_stash_constraint((2, 2, 1000), 'FF')                              |
|          | 1.51±0.02s           | 1.56±0.01s          |    1.03 | load.STASHConstraint.time_stash_constraint((2, 2, 1000), 'PP')                              |
|          | 5.32±0.03ms          | 5.39±0.03ms         |    1.01 | load.STASHConstraint.time_stash_constraint((2, 2, 2), 'FF')                                 |
|          | 5.27±0.06ms          | 5.37±0.04ms         |    1.02 | load.STASHConstraint.time_stash_constraint((2, 2, 2), 'PP')                                 |
|          | 9.02±0.1ms           | 9.08±0.06ms         |    1.01 | load.StructuredFF.time_structured_load((1280, 960, 5), False)                               |
|          | 5.58±0.04ms          | 5.61±0.05ms         |    1.01 | load.StructuredFF.time_structured_load((1280, 960, 5), True)                                |
|          | 1.48±0.03s           | 1.51±0.01s          |    1.02 | load.StructuredFF.time_structured_load((2, 2, 1000), False)                                 |
|          | 411±3ms              | 420±2ms             |    1.02 | load.StructuredFF.time_structured_load((2, 2, 1000), True)                                  |
|          | 4.35±0.03ms          | 4.48±0.04ms         |    1.03 | load.StructuredFF.time_structured_load((2, 2, 2), False)                                    |
|          | 4.22±0.03ms          | 4.30±0.05ms         |    1.02 | load.StructuredFF.time_structured_load((2, 2, 2), True)                                     |
|          | 150±2ms              | 153±0.8ms           |    1.02 | load.TimeConstraint.time_time_constraint(20, 'FF')                                          |
|          | 17.1±0.2ms           | 17.2±0.1ms          |    1.01 | load.TimeConstraint.time_time_constraint(20, 'NetCDF')                                      |
|          | 153±0.7ms            | 155±0.7ms           |    1.02 | load.TimeConstraint.time_time_constraint(20, 'PP')                                          |
|          | 31.2±0.4ms           | 31.5±0.2ms          |    1.01 | load.TimeConstraint.time_time_constraint(3, 'FF')                                           |
|          | 16.7±0.1ms           | 16.8±0.2ms          |    1    | load.TimeConstraint.time_time_constraint(3, 'NetCDF')                                       |
|          | 30.7±0.5ms           | 31.2±0.2ms          |    1.01 | load.TimeConstraint.time_time_constraint(3, 'PP')                                           |
|          | 20.6±0.2ms           | 21.1±0.5ms          |    1.03 | load.ugrid.BasicLoading.time_load_file(1)                                                   |
|          | 52.6±0.4ms           | 53.1±0.6ms          |    1.01 | load.ugrid.BasicLoading.time_load_file(200000)                                              |
|          | 10.9±0.1ms           | 10.9±0.2ms          |    1.01 | load.ugrid.BasicLoading.time_load_mesh(1)                                                   |
|          | 20.4±0.2ms           | 20.8±0.4ms          |    1.02 | load.ugrid.BasicLoading.time_load_mesh(200000)                                              |
|          | 20.7±0.2ms           | 21.1±0.3ms          |    1.02 | load.ugrid.BasicLoadingTime.time_load_file(1)                                               |
|          | 21.5±0.4ms           | 21.5±0.5ms          |    1    | load.ugrid.BasicLoadingTime.time_load_file(200000)                                          |
|          | 10.7±0.3ms           | 11.0±0.2ms          |    1.02 | load.ugrid.BasicLoadingTime.time_load_mesh(1)                                               |
|          | 13.3±0.2ms           | 13.7±0.7ms          |    1.02 | load.ugrid.BasicLoadingTime.time_load_mesh(200000)                                          |
|          | 22.7±0.4ms           | 23.3±0.3ms          |    1.03 | load.ugrid.Callback.time_load_file_callback(1)                                              |
|          | 64.2±0.8ms           | 64.9±1ms            |    1.01 | load.ugrid.Callback.time_load_file_callback(200000)                                         |
|          | 22.9±0.6ms           | 23.3±0.3ms          |    1.02 | load.ugrid.CallbackTime.time_load_file_callback(1)                                          |
|          | 24.5±0.4ms           | 25.4±0.5ms          |    1.04 | load.ugrid.CallbackTime.time_load_file_callback(200000)                                     |
|          | 5.36±0.2ms           | 5.40±0.2ms          |    1.01 | load.ugrid.DataRealisation.time_realise_data(10000)                                         |
|          | 8.54±0.2ms           | 8.48±0.9ms          |    0.99 | load.ugrid.DataRealisation.time_realise_data(200000)                                        |
|          | 38.1±0.9ms           | 37.9±0.6ms          |    0.99 | load.ugrid.DataRealisationTime.time_realise_data(10000)                                     |
|          | 802±5ms              | 803±10ms            |    1    | load.ugrid.DataRealisationTime.time_realise_data(200000)                                    |
|          | 1.37±0.04s           | 1.35±0.05s          |    0.99 | merge_concat.Concatenate.time_concatenate(False)                                            |
|          | 439±4ms              | 450±6ms             |    1.02 | merge_concat.Concatenate.time_concatenate(True)                                             |
|          | 2.42±0G              | 2.42±0G             |    1    | merge_concat.Concatenate.tracemalloc_concatenate(False)                                     |
|          | 110±2M               | 110±2M              |    1    | merge_concat.Concatenate.tracemalloc_concatenate(True)                                      |
|          | 33.5±2ms             | 30.4±2ms            |    0.91 | merge_concat.Merge.time_merge                                                               |
|          | 126±0.03M            | 126±0.03M           |    1    | merge_concat.Merge.tracemalloc_merge                                                        |
|          | 363±5ns              | 362±2ns             |    1    | mesh.utils.regions_combine.CombineRegionsComputeRealData.time_compute_data(50)              |
|          | 197±2ms              | 202±2ms             |    1.02 | mesh.utils.regions_combine.CombineRegionsComputeRealData.time_compute_data(500)             |
|          | 771±0.5k             | 772±0.5k            |    1    | mesh.utils.regions_combine.CombineRegionsComputeRealData.tracemalloc_compute_data(50)       |
|          | 60.2±0M              | 60.2±0M             |    1    | mesh.utils.regions_combine.CombineRegionsComputeRealData.tracemalloc_compute_data(500)      |
|          | 18.6±0.2ms           | 19.3±0.3ms          |    1.03 | mesh.utils.regions_combine.CombineRegionsCreateCube.time_create_combined_cube(50)           |
|          | 22.1±0.7ms           | 22.5±0.2ms          |    1.02 | mesh.utils.regions_combine.CombineRegionsCreateCube.time_create_combined_cube(500)          |
|          | 1.27±0.04M           | 1.27±0.04M          |    1    | mesh.utils.regions_combine.CombineRegionsCreateCube.tracemalloc_create_combined_cube(50)    |
|          | 25±0.04M             | 25±0.04M            |    1    | mesh.utils.regions_combine.CombineRegionsCreateCube.tracemalloc_create_combined_cube(500)   |
|          | 173±1ms              | 172±1ms             |    1    | mesh.utils.regions_combine.CombineRegionsFileStreamedCalc.time_stream_file2file(50)         |
|          | 641±2ms              | 649±5ms             |    1.01 | mesh.utils.regions_combine.CombineRegionsFileStreamedCalc.time_stream_file2file(500)        |
|          | 1.46±0.03M           | 1.5±0.02M           |    1.03 | mesh.utils.regions_combine.CombineRegionsFileStreamedCalc.tracemalloc_stream_file2file(50)  |
|          | 96.5±0.08M           | 96.5±0.02M          |    1    | mesh.utils.regions_combine.CombineRegionsFileStreamedCalc.tracemalloc_stream_file2file(500) |
|          | 117±0.8ms            | 119±2ms             |    1.02 | mesh.utils.regions_combine.CombineRegionsSaveData.time_save(50)                             |
|          | 584±6ms              | 586±2ms             |    1    | mesh.utils.regions_combine.CombineRegionsSaveData.time_save(500)                            |
|          | 1.41±0.03M           | 1.43±0.03M          |    1.01 | mesh.utils.regions_combine.CombineRegionsSaveData.tracemalloc_save(50)                      |
|          | 96.5±0.03M           | 96.5±0.02M          |    1    | mesh.utils.regions_combine.CombineRegionsSaveData.tracemalloc_save(500)                     |
|          | 2.1752849999999997   | 2.1752849999999997  |    1    | mesh.utils.regions_combine.CombineRegionsSaveData.track_filesize_saved(50)                  |
|          | 216.01528499999998   | 216.01528499999998  |    1    | mesh.utils.regions_combine.CombineRegionsSaveData.track_filesize_saved(500)                 |
|          | 6.45±0.05ms          | 6.53±0.06ms         |    1.01 | plot.AuxSort.time_aux_sort                                                                  |
|          | 85.5±3ms             | 86.0±2ms            |    1.01 | regridding.CurvilinearRegridding.time_regrid_pic                                            |
|          | 136±3M               | 136±3M              |    1    | regridding.CurvilinearRegridding.tracemalloc_regrid_pic                                     |
|          | 106±6ms              | 107±6ms             |    1.01 | regridding.HorizontalChunkedRegridding.time_regrid_area_w                                   |
|          | 58.8±3ms             | 56.7±1ms            |    0.96 | regridding.HorizontalChunkedRegridding.time_regrid_area_w_new_grid                          |
|          | 107±0.09M            | 107±0.09M           |    1    | regridding.HorizontalChunkedRegridding.tracemalloc_regrid_area_w                            |
|          | 147±0.04M            | 147±0.04M           |    1    | regridding.HorizontalChunkedRegridding.tracemalloc_regrid_area_w_new_grid                   |
|          | 6.68±0.08ms          | 6.71±0.04ms         |    1    | save.NetcdfSave.time_netcdf_save_cube(50, False)                                            |
|          | 120±0.7ms            | 120±0.5ms           |    1.01 | save.NetcdfSave.time_netcdf_save_cube(50, True)                                             |
|          | 43.9±0.6ms           | 45.0±0.7ms          |    1.02 | save.NetcdfSave.time_netcdf_save_cube(600, False)                                           |
|          | 517±3ms              | 522±2ms             |    1.01 | save.NetcdfSave.time_netcdf_save_cube(600, True)                                            |
|          | 88.1±0.9ns           | 87.5±0.5ns          |    0.99 | save.NetcdfSave.time_netcdf_save_mesh(50, False)                                            |
|          | 99.7±0.5ms           | 100±0.4ms           |    1.01 | save.NetcdfSave.time_netcdf_save_mesh(50, True)                                             |
|          | 88.0±0.3ns           | 88.1±0.6ns          |    1    | save.NetcdfSave.time_netcdf_save_mesh(600, False)                                           |
|          | 459±2ms              | 464±3ms             |    1.01 | save.NetcdfSave.time_netcdf_save_mesh(600, True)                                            |
|          | 31.8±0.4k            | 31.8±0.3k           |    1    | save.NetcdfSave.tracemalloc_netcdf_save(50, False)                                          |
|          | 1.93±0.1M            | 1.78±0.2M           |    0.92 | save.NetcdfSave.tracemalloc_netcdf_save(50, True)                                           |
|          | 31.8±0.4k            | 31.8±0.4k           |    1    | save.NetcdfSave.tracemalloc_netcdf_save(600, False)                                         |
|          | 191±20M              | 225±20M             |    1.18 | save.NetcdfSave.tracemalloc_netcdf_save(600, True)                                          |
|          | 39.1±0.4ms           | 39.6±0.4ms          |    1.01 | stats.PearsonR.time_lazy                                                                    |
|          | 9.10±0.2ms           | 9.28±0.2ms          |    1.02 | stats.PearsonR.time_real                                                                    |
|          | 29.4±0.2M            | 29.1±0.8M           |    0.99 | stats.PearsonR.tracemalloc_lazy                                                             |
|          | 18.3±0.01M           | 18.3±0.01M          |    1    | stats.PearsonR.tracemalloc_real                                                             |
|          | 26.8±0.4ms           | 27.2±0.4ms          |    1.02 | trajectory.TrajectoryInterpolation.time_trajectory_linear                                   |
|          | 64.1±0.4ms           | 64.3±0.3ms          |    1    | trajectory.TrajectoryInterpolation.time_trajectory_nearest                                  |
|          | 17.6±0.02M           | 17.6±0.02M          |    1    | trajectory.TrajectoryInterpolation.tracemalloc_trajectory_linear                            |
|          | 7.75±0.02M           | 7.75±0.02M          |    1    | trajectory.TrajectoryInterpolation.tracemalloc_trajectory_nearest                           |

Generated by GHA run 18753368272

improve memory for map_complete_blocks

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fix test failures

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…mplete_memory # Conflicts: # lib/iris/_lazy_data.py

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Update lib/iris/_lazy_data.py

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⏱️ Performance Benchmark Report: 664e080

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3 participants

stephenworsley commented Sep 29, 2025 •

edited

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CLAassistant commented Sep 29, 2025 •

edited

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codecov bot commented Oct 7, 2025 •

edited

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⏱️ Performance Benchmark Report: `664e080`