Point reg

[robert-graf]

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Benchmark comparison

Speed (wall time per call)

baseline 6e93cc2 vs head 6e93cc2 · python 3.11.16 · 5 repeats + 1 warmup

Showing the 5 most-changed measurements per case; the rest are collapsed. Rows with a baseline below 3 ms are tagged (noise) — runner jitter on those swamps any real change.

ct_3d — shape (73, 47, 73)

Measurement	baseline ms (median ±½·range)	head ms (median ±½·range)	Δ %	p
nii_rescale_seg	3.16 ±0.02	3.10 ±0.02	-2.0%	0.001
poi_calc_centroids_nocrop	4.40 ±0.04	4.46 ±0.06	+1.5%	0.070
nii_rescale	39.72 ±0.13	40.21 ±0.43	+1.2%	0.019
nii_save	11.66 ±0.10	11.77 ±1.98	+0.9%	0.259
nii_filter_connected_components	4.24 ±0.02	4.21 ±0.10	-0.7%	0.649

… 31 more measurements

Measurement	baseline ms (median ±½·range)	head ms (median ±½·range)	Δ %	p
nii_resample_from_to	41.48 ±0.08	41.75 ±0.21	+0.6%	0.025
nii_load_img	12.06 ±0.17	11.98 ±0.06	-0.6%	0.907
nii_fill_holes	4.64 ±0.03	4.62 ±0.04	-0.5%	0.691
nii_dilate_msk	120.63 ±0.21	119.99 ±0.43	-0.5%	0.012
poi_calc_poi_from_subreg_vert	11.46 ±0.11	11.52 ±0.13	+0.5%	0.282
nii_erode_msk	6.04 ±0.07	6.07 ±0.05	+0.5%	0.993
metric_voxels	250463.00 ±0.00	250463.00 ±0.00	+0.0%	—
metric_labels	3.00 ±0.00	3.00 ±0.00	+0.0%	—
metric_foreground_pct	14.51 ±0.00	14.51 ±0.00	+0.0%	—
nii_get_array	0.03 ±0.00	0.05 ±0.01	+48.9% (noise)	0.011
nii_pad_to	0.61 ±0.02	0.70 ±0.04	+15.3% (noise)	0.003
nii_set_dtype	0.46 ±0.03	0.40 ±0.02	-13.7% (noise)	0.007
poi_rescale	0.21 ±0.01	0.19 ±0.01	-13.5% (noise)	0.038
nii_apply_crop	0.59 ±0.05	0.63 ±0.02	+6.8% (noise)	0.242
nii_compute_crop	0.31 ±0.02	0.33 ±0.01	+6.4% (noise)	0.149
poi_save	0.43 ±0.03	0.41 ±0.03	-5.3% (noise)	0.111
nii_extract_label	0.35 ±0.02	0.33 ±0.01	-4.8% (noise)	0.108
poi_reorient	0.36 ±0.02	0.38 ±0.02	+4.6% (noise)	0.182
poi_load	0.90 ±0.01	0.94 ±0.04	+4.4% (noise)	0.203
nii_reorient	0.74 ±0.05	0.71 ±0.00	-4.3% (noise)	0.294
poi_resample_from_to	0.60 ±0.04	0.58 ±0.01	-3.9% (noise)	0.056
poi_map_labels	0.16 ±0.01	0.16 ±0.01	-3.6% (noise)	0.894
nii_map_labels	0.86 ±0.02	0.83 ±0.03	-3.4% (noise)	0.045
poi_local_to_global_arr	0.24 ±0.01	0.25 ±0.00	+3.3% (noise)	0.982
poi_calc_centroids	2.46 ±0.04	2.53 ±0.08	+3.0% (noise)	0.264
poi_to_global	0.19 ±0.01	0.19 ±0.01	-2.8% (noise)	0.765
nii_unique	0.62 ±0.01	0.60 ±0.02	-2.3% (noise)	0.277
nii_get_connected_components	2.07 ±0.03	2.04 ±0.05	-1.1% (noise)	0.568
nii_center_of_masses	1.82 ±0.02	1.80 ±0.01	-1.1% (noise)	0.071
nii_load_seg	2.77 ±0.06	2.75 ±0.05	-0.8% (noise)	0.095
nii_volumes	1.91 ±0.02	1.91 ±0.01	-0.1% (noise)	0.473

ct_2d — shape (73, 47, 1)

Measurement	baseline ms (median ±½·range)	head ms (median ±½·range)	Δ %	p
nii_resample_from_to	7.41 ±0.19	7.29 ±0.19	-1.6%	0.651
nii_dilate_msk	13.92 ±0.08	14.00 ±0.06	+0.6%	0.220
nii_rescale	5.47 ±0.16	5.43 ±0.19	-0.6%	0.967
metric_voxels	3431.00 ±0.00	3431.00 ±0.00	+0.0%	—
metric_labels	3.00 ±0.00	3.00 ±0.00	+0.0%	—

… 30 more measurements

Measurement	baseline ms (median ±½·range)	head ms (median ±½·range)	Δ %	p
metric_foreground_pct	37.60 ±0.00	37.60 ±0.00	+0.0%	—
nii_rescale_seg	0.76 ±0.02	0.85 ±0.02	+11.3% (noise)	0.000
nii_get_array	0.02 ±0.00	0.02 ±0.00	-8.9% (noise)	0.970
nii_volumes	0.32 ±0.01	0.30 ±0.01	-6.0% (noise)	0.003
nii_compute_crop	0.15 ±0.01	0.16 ±0.01	+6.0% (noise)	0.067
poi_save	0.49 ±0.02	0.51 ±0.02	+5.2% (noise)	0.323
nii_get_connected_components	0.69 ±0.01	0.66 ±0.01	-4.4% (noise)	0.001
nii_fill_holes	0.86 ±0.01	0.83 ±0.01	-4.3% (noise)	0.006
poi_to_global	0.25 ±0.01	0.26 ±0.02	+3.8% (noise)	0.245
nii_center_of_masses	0.22 ±0.01	0.23 ±0.01	+3.7% (noise)	0.127
poi_resample_from_to	0.74 ±0.01	0.71 ±0.02	-3.6% (noise)	0.073
nii_reorient	0.81 ±0.01	0.84 ±0.02	+3.4% (noise)	0.024
nii_filter_connected_components	0.86 ±0.01	0.84 ±0.02	-2.8% (noise)	0.008
nii_load_seg	1.60 ±0.01	1.64 ±0.17	+2.4% (noise)	0.269
nii_apply_crop	0.68 ±0.02	0.69 ±0.02	+2.2% (noise)	0.176
nii_extract_label	0.45 ±0.02	0.44 ±0.01	-1.6% (noise)	0.603
poi_local_to_global_arr	0.28 ±0.01	0.29 ±0.01	+1.3% (noise)	0.849
poi_map_labels	0.21 ±0.01	0.21 ±0.01	+1.1% (noise)	0.458
nii_set_dtype	0.43 ±0.03	0.43 ±0.01	-1.1% (noise)	0.525
nii_load_img	1.48 ±0.02	1.47 ±0.03	-1.1% (noise)	0.307
poi_rescale	0.27 ±0.01	0.27 ±0.01	-1.0% (noise)	0.421
nii_save	1.37 ±0.03	1.39 ±0.02	+1.0% (noise)	0.144
nii_map_labels	0.51 ±0.01	0.51 ±0.02	+0.9% (noise)	0.781
poi_calc_centroids_nocrop	1.11 ±0.01	1.10 ±0.11	-0.9% (noise)	0.470
nii_pad_to	0.57 ±0.01	0.58 ±0.03	+0.9% (noise)	0.917
poi_reorient	0.46 ±0.01	0.46 ±0.01	-0.7% (noise)	0.717
nii_unique	0.14 ±0.01	0.14 ±0.00	-0.5% (noise)	0.806
nii_erode_msk	0.96 ±0.01	0.96 ±0.02	-0.5% (noise)	0.563
poi_calc_centroids	0.94 ±0.02	0.94 ±0.03	+0.4% (noise)	0.585
poi_load	0.99 ±0.04	0.99 ±0.01	-0.1% (noise)	0.510

mri_3d — shape (68, 52, 67)

Measurement	baseline ms (median ±½·range)	head ms (median ±½·range)	Δ %	p
nii_filter_connected_components	4.70 ±0.48	4.53 ±0.06	-3.6%	0.230
nii_fill_holes	5.62 ±0.32	5.54 ±0.05	-1.4%	0.234
nii_rescale_seg	3.09 ±0.04	3.14 ±0.03	+1.4%	0.472
nii_erode_msk	7.68 ±0.05	7.57 ±0.05	-1.4%	0.021
poi_calc_poi_from_subreg_vert	10.89 ±0.16	11.01 ±0.04	+1.1%	0.111

… 31 more measurements

Measurement	baseline ms (median ±½·range)	head ms (median ±½·range)	Δ %	p
poi_calc_centroids_nocrop	9.10 ±0.07	9.01 ±0.06	-1.0%	0.038
nii_rescale	37.64 ±0.28	37.44 ±0.24	-0.5%	0.304
nii_dilate_msk	156.57 ±0.69	155.88 ±0.45	-0.4%	0.044
nii_load_img	9.58 ±0.04	9.60 ±0.07	+0.2%	0.918
nii_save	9.53 ±0.10	9.51 ±0.44	-0.2%	0.529
nii_resample_from_to	39.08 ±0.20	39.14 ±0.45	+0.1%	0.546
metric_voxels	236912.00 ±0.00	236912.00 ±0.00	+0.0%	—
metric_labels	8.00 ±0.00	8.00 ±0.00	+0.0%	—
metric_foreground_pct	18.21 ±0.00	18.21 ±0.00	+0.0%	—
nii_get_array	0.04 ±0.01	0.04 ±0.00	-6.3% (noise)	0.227
poi_rescale	0.32 ±0.03	0.30 ±0.02	-4.6% (noise)	0.405
nii_extract_label	0.49 ±0.01	0.47 ±0.01	-4.1% (noise)	0.004
poi_local_to_global_arr	0.29 ±0.01	0.30 ±0.01	+3.7% (noise)	0.045
poi_save	0.59 ±0.02	0.57 ±0.01	-3.3% (noise)	0.068
nii_map_labels	1.03 ±0.01	1.01 ±0.01	-2.8% (noise)	0.016
nii_compute_crop	0.36 ±0.01	0.35 ±0.01	-2.7% (noise)	0.446
nii_set_dtype	0.53 ±0.02	0.52 ±0.02	-2.6% (noise)	0.296
nii_reorient	0.86 ±0.03	0.84 ±0.03	-2.5% (noise)	0.687
nii_get_connected_components	2.12 ±0.01	2.07 ±0.01	-2.5% (noise)	0.000
nii_unique	0.63 ±0.01	0.62 ±0.01	-2.4% (noise)	0.014
nii_pad_to	0.75 ±0.01	0.74 ±0.00	-2.2% (noise)	0.008
nii_load_seg	2.86 ±0.02	2.79 ±0.02	-2.2% (noise)	0.000
nii_apply_crop	0.75 ±0.01	0.74 ±0.03	-2.0% (noise)	0.794
poi_map_labels	0.26 ±0.01	0.26 ±0.01	-1.1% (noise)	0.986
poi_to_global	0.29 ±0.01	0.28 ±0.00	-1.1% (noise)	0.233
poi_reorient	0.50 ±0.02	0.51 ±0.01	+0.8% (noise)	0.916
poi_load	2.10 ±0.01	2.12 ±0.03	+0.8% (noise)	0.186
poi_resample_from_to	0.78 ±0.02	0.78 ±0.02	-0.3% (noise)	0.447
nii_volumes	2.05 ±0.01	2.05 ±0.02	-0.2% (noise)	0.249
nii_center_of_masses	2.09 ±0.01	2.09 ±0.01	+0.0% (noise)	0.781
poi_calc_centroids	2.84 ±0.02	2.84 ±0.02	+0.0% (noise)	0.460

mri_2d — shape (68, 52, 1)

Measurement	baseline ms (median ±½·range)	head ms (median ±½·range)	Δ %	p
nii_rescale	5.53 ±0.09	5.57 ±0.12	+0.8%	0.137
nii_resample_from_to	7.30 ±0.10	7.26 ±0.10	-0.7%	0.461
nii_dilate_msk	18.29 ±0.04	18.34 ±0.08	+0.3%	0.301
metric_voxels	3536.00 ±0.00	3536.00 ±0.00	+0.0%	—
metric_labels	7.00 ±0.00	7.00 ±0.00	+0.0%	—

… 30 more measurements

Measurement	baseline ms (median ±½·range)	head ms (median ±½·range)	Δ %	p
metric_foreground_pct	50.17 ±0.00	50.17 ±0.00	+0.0%	—
nii_get_array	0.02 ±0.00	0.02 ±0.00	-8.2% (noise)	0.086
nii_map_labels	0.53 ±0.02	0.50 ±0.02	-6.2% (noise)	0.330
nii_unique	0.13 ±0.01	0.14 ±0.01	+5.1% (noise)	0.332
nii_save	1.35 ±0.01	1.41 ±0.05	+4.7% (noise)	0.038
poi_reorient	0.49 ±0.02	0.50 ±0.03	+4.0% (noise)	0.241
nii_center_of_masses	0.41 ±0.02	0.40 ±0.01	-3.4% (noise)	0.410
nii_compute_crop	0.16 ±0.01	0.16 ±0.01	-2.9% (noise)	0.665
poi_resample_from_to	0.75 ±0.01	0.77 ±0.02	+2.7% (noise)	0.160
nii_volumes	0.46 ±0.01	0.47 ±0.03	+2.7% (noise)	0.185
poi_to_global	0.29 ±0.01	0.28 ±0.01	-2.6% (noise)	0.148
nii_pad_to	0.58 ±0.01	0.56 ±0.01	-2.5% (noise)	0.041
nii_get_connected_components	0.67 ±0.02	0.65 ±0.05	-2.3% (noise)	0.840
poi_local_to_global_arr	0.29 ±0.00	0.28 ±0.01	-2.1% (noise)	0.677
nii_reorient	0.84 ±0.03	0.82 ±0.02	-2.0% (noise)	0.130
nii_load_img	1.46 ±0.02	1.49 ±0.02	+1.9% (noise)	0.039
poi_load	1.89 ±0.01	1.85 ±0.02	-1.9% (noise)	0.025
nii_extract_label	0.44 ±0.01	0.43 ±0.03	-1.5% (noise)	0.776
nii_set_dtype	0.42 ±0.01	0.42 ±0.01	-1.3% (noise)	0.991
poi_save	0.56 ±0.01	0.57 ±0.03	+1.3% (noise)	0.959
nii_load_seg	1.65 ±0.02	1.67 ±0.03	+1.1% (noise)	0.082
nii_fill_holes	1.03 ±0.03	1.04 ±0.10	+1.1% (noise)	0.379
nii_rescale_seg	0.79 ±0.21	0.79 ±0.03	-0.8% (noise)	0.375
nii_erode_msk	1.19 ±0.05	1.20 ±0.02	+0.8% (noise)	0.811
nii_filter_connected_components	0.87 ±0.03	0.86 ±0.02	-0.7% (noise)	0.590
poi_rescale	0.30 ±0.01	0.30 ±0.01	+0.6% (noise)	0.626
nii_apply_crop	0.68 ±0.02	0.68 ±0.02	+0.3% (noise)	0.949
poi_calc_centroids_nocrop	1.33 ±0.01	1.33 ±0.02	+0.3% (noise)	0.926
poi_map_labels	0.25 ±0.01	0.25 ±0.01	-0.2% (noise)	0.500
poi_calc_centroids	1.12 ±0.01	1.11 ±0.01	-0.2% (noise)	0.812

Gate: a measurement fails when the baseline is ≥ 1 ms, the median grows by ≥ 50%, and Welch's t-test gives p < 0.05. metric_* rows are context only.

Memory (peak RSS growth per call)

baseline 6e93cc2 vs head 6e93cc2 · python 3.11.16 · 5 repeats + 1 warmup · sampler proc-status, isolation fork · measurement floor ≈ 0.90 MiB

Showing the 5 most-changed measurements per case; the rest are collapsed. Rows with a baseline below 3 MiB are tagged (noise) — runner jitter on those swamps any real change.

ct_3d — shape (73, 47, 73)

Measurement	baseline MiB (median ±½·range)	head MiB (median ±½·range)	Δ %	p
nii_set_dtype	5.20 ±0.00	5.27 ±0.00	+1.4%	—
nii_extract_label	5.33 ±0.00	5.40 ±0.00	+1.3%	—
nii_pad_to	5.39 ±0.00	5.46 ±0.00	+1.3%	—
nii_map_labels	5.45 ±0.00	5.52 ±0.00	+1.3%	—
nii_apply_crop	5.83 ±0.00	5.90 ±0.00	+1.2%	—

… 31 more measurements

Measurement	baseline MiB (median ±½·range)	head MiB (median ±½·range)	Δ %	p
poi_calc_centroids_nocrop	5.89 ±0.00	5.96 ±0.00	+1.2%	—
nii_fill_holes	6.24 ±0.00	6.32 ±0.00	+1.2%	—
poi_calc_centroids	6.02 ±0.00	6.09 ±0.00	+1.2%	—
nii_get_connected_components	6.58 ±0.00	6.65 ±0.00	+1.1%	—
nii_filter_connected_components	6.83 ±0.00	6.90 ±0.00	+1.0%	—
nii_load_img	3.56 ±0.00	3.53 ±0.00	-1.0%	—
poi_calc_poi_from_subreg_vert	7.08 ±0.00	7.14 ±0.00	+0.9%	—
nii_erode_msk	5.90 ±0.00	5.95 ±0.00	+0.8%	—
nii_dilate_msk	5.89 ±0.00	5.93 ±0.00	+0.7%	—
poi_resample_from_to	5.24 ±0.00	5.27 ±0.00	+0.6%	—
nii_load_seg	5.97 ±0.00	6.00 ±0.00	+0.6%	—
nii_reorient	5.87 ±0.00	5.90 ±0.00	+0.5%	—
nii_rescale_seg	5.95 ±0.00	5.98 ±0.00	+0.5%	—
nii_rescale	6.17 ±0.00	6.16 ±0.00	-0.1%	—
nii_resample_from_to	6.30 ±0.00	6.29 ±0.00	-0.1%	—
nii_save	3.71 ±0.00	3.71 ±0.00	+0.0%	—
nii_volumes	3.52 ±0.00	3.52 ±0.00	+0.0%	—
nii_center_of_masses	3.27 ±0.00	3.27 ±0.00	+0.0%	—
poi_reorient	3.83 ±0.00	3.83 ±0.00	+0.0%	—
poi_to_global	3.08 ±0.00	3.08 ±0.00	+0.0%	—
metric_voxels	250463.00 ±0.00	250463.00 ±0.00	+0.0%	—
metric_labels	3.00 ±0.00	3.00 ±0.00	+0.0%	—
metric_foreground_pct	14.51 ±0.00	14.51 ±0.00	+0.0%	—
nii_get_array	1.65 ±0.00	1.65 ±0.00	+0.0% (noise)	—
nii_compute_crop	2.90 ±0.00	2.90 ±0.00	+0.0% (noise)	—
nii_unique	2.96 ±0.00	2.96 ±0.00	+0.0% (noise)	—
poi_rescale	2.61 ±0.00	2.61 ±0.00	+0.0% (noise)	—
poi_local_to_global_arr	2.96 ±0.00	2.96 ±0.00	+0.0% (noise)	—
poi_save	1.40 ±0.00	1.40 ±0.00	+0.0% (noise)	—
poi_map_labels	1.77 ±0.00	1.77 ±0.00	+0.0% (noise)	—
poi_load	1.61 ±0.00	1.61 ±0.00	+0.0% (noise)	—

ct_2d — shape (73, 47, 1)

Measurement	baseline MiB (median ±½·range)	head MiB (median ±½·range)	Δ %	p
nii_set_dtype	5.14 ±0.00	5.21 ±0.00	+1.4%	—
nii_extract_label	5.27 ±0.00	5.34 ±0.00	+1.3%	—
nii_pad_to	5.32 ±0.00	5.39 ±0.00	+1.3%	—
nii_map_labels	5.39 ±0.00	5.46 ±0.00	+1.3%	—
nii_apply_crop	5.77 ±0.00	5.84 ±0.00	+1.2%	—

… 30 more measurements

Measurement	baseline MiB (median ±½·range)	head MiB (median ±½·range)	Δ %	p
nii_fill_holes	6.18 ±0.00	6.25 ±0.00	+1.2%	—
poi_calc_centroids_nocrop	5.89 ±0.00	5.96 ±0.00	+1.2%	—
poi_calc_centroids	5.95 ±0.00	6.02 ±0.00	+1.2%	—
nii_get_connected_components	6.52 ±0.00	6.59 ±0.00	+1.1%	—
nii_filter_connected_components	6.77 ±0.00	6.84 ±0.00	+1.0%	—
nii_load_img	3.50 ±0.00	3.46 ±0.00	-1.0%	—
nii_erode_msk	5.84 ±0.00	5.88 ±0.00	+0.8%	—
nii_dilate_msk	5.83 ±0.00	5.87 ±0.00	+0.7%	—
poi_resample_from_to	5.18 ±0.00	5.21 ±0.00	+0.6%	—
nii_load_seg	5.91 ±0.00	5.94 ±0.00	+0.6%	—
nii_reorient	5.80 ±0.00	5.84 ±0.00	+0.5%	—
nii_rescale_seg	5.88 ±0.00	5.91 ±0.00	+0.5%	—
nii_rescale	6.11 ±0.00	6.10 ±0.00	-0.1%	—
nii_resample_from_to	6.23 ±0.00	6.23 ±0.00	-0.1%	—
nii_save	3.65 ±0.00	3.65 ±0.00	+0.0%	—
nii_volumes	3.46 ±0.00	3.46 ±0.00	+0.0%	—
nii_center_of_masses	3.21 ±0.00	3.21 ±0.00	+0.0%	—
poi_reorient	3.77 ±0.00	3.77 ±0.00	+0.0%	—
poi_to_global	3.02 ±0.00	3.02 ±0.00	+0.0%	—
metric_voxels	3431.00 ±0.00	3431.00 ±0.00	+0.0%	—
metric_labels	3.00 ±0.00	3.00 ±0.00	+0.0%	—
metric_foreground_pct	37.60 ±0.00	37.60 ±0.00	+0.0%	—
nii_get_array	1.59 ±0.00	1.59 ±0.00	+0.0% (noise)	—
nii_compute_crop	2.84 ±0.00	2.84 ±0.00	+0.0% (noise)	—
nii_unique	2.90 ±0.00	2.90 ±0.00	+0.0% (noise)	—
poi_rescale	2.54 ±0.00	2.54 ±0.00	+0.0% (noise)	—
poi_local_to_global_arr	2.89 ±0.00	2.89 ±0.00	+0.0% (noise)	—
poi_save	1.34 ±0.00	1.34 ±0.00	+0.0% (noise)	—
poi_map_labels	1.71 ±0.00	1.71 ±0.00	+0.0% (noise)	—
poi_load	1.55 ±0.00	1.55 ±0.00	+0.0% (noise)	—

mri_3d — shape (68, 52, 67)

Measurement	baseline MiB (median ±½·range)	head MiB (median ±½·range)	Δ %	p
nii_set_dtype	5.20 ±0.00	5.27 ±0.00	+1.4%	—
nii_extract_label	5.27 ±0.00	5.34 ±0.00	+1.3%	—
nii_pad_to	5.32 ±0.00	5.39 ±0.00	+1.3%	—
nii_map_labels	5.39 ±0.00	5.46 ±0.00	+1.3%	—
nii_apply_crop	5.77 ±0.00	5.84 ±0.00	+1.2%	—

… 31 more measurements

Measurement	baseline MiB (median ±½·range)	head MiB (median ±½·range)	Δ %	p
poi_calc_centroids_nocrop	5.82 ±0.00	5.89 ±0.00	+1.2%	—
nii_fill_holes	6.18 ±0.00	6.25 ±0.00	+1.2%	—
poi_calc_centroids	5.95 ±0.00	6.02 ±0.00	+1.2%	—
nii_get_connected_components	6.52 ±0.00	6.59 ±0.00	+1.1%	—
nii_filter_connected_components	6.77 ±0.00	6.84 ±0.00	+1.0%	—
poi_calc_poi_from_subreg_vert	7.07 ±0.00	7.14 ±0.00	+1.0%	—
nii_load_img	3.56 ±0.00	3.53 ±0.00	-1.0%	—
nii_erode_msk	5.84 ±0.00	5.88 ±0.00	+0.8%	—
nii_dilate_msk	5.83 ±0.00	5.87 ±0.00	+0.7%	—
poi_resample_from_to	5.18 ±0.00	5.21 ±0.00	+0.6%	—
nii_load_seg	5.91 ±0.00	5.94 ±0.00	+0.6%	—
nii_reorient	5.80 ±0.00	5.84 ±0.00	+0.5%	—
nii_rescale_seg	5.88 ±0.00	5.91 ±0.00	+0.5%	—
nii_rescale	6.11 ±0.00	6.10 ±0.00	-0.1%	—
nii_resample_from_to	6.23 ±0.00	6.23 ±0.00	-0.1%	—
nii_save	3.65 ±0.00	3.65 ±0.00	+0.0%	—
nii_volumes	3.46 ±0.00	3.46 ±0.00	+0.0%	—
nii_center_of_masses	3.21 ±0.00	3.21 ±0.00	+0.0%	—
poi_reorient	3.77 ±0.00	3.77 ±0.00	+0.0%	—
poi_to_global	3.02 ±0.00	3.02 ±0.00	+0.0%	—
metric_voxels	236912.00 ±0.00	236912.00 ±0.00	+0.0%	—
metric_labels	8.00 ±0.00	8.00 ±0.00	+0.0%	—
metric_foreground_pct	18.21 ±0.00	18.21 ±0.00	+0.0%	—
nii_get_array	1.59 ±0.00	1.59 ±0.00	+0.0% (noise)	—
nii_compute_crop	2.84 ±0.00	2.84 ±0.00	+0.0% (noise)	—
nii_unique	2.90 ±0.00	2.90 ±0.00	+0.0% (noise)	—
poi_rescale	2.54 ±0.00	2.54 ±0.00	+0.0% (noise)	—
poi_local_to_global_arr	2.89 ±0.00	2.89 ±0.00	+0.0% (noise)	—
poi_save	1.40 ±0.00	1.40 ±0.00	+0.0% (noise)	—
poi_map_labels	1.71 ±0.00	1.71 ±0.00	+0.0% (noise)	—
poi_load	1.55 ±0.00	1.55 ±0.00	+0.0% (noise)	—

mri_2d — shape (68, 52, 1)

Measurement	baseline MiB (median ±½·range)	head MiB (median ±½·range)	Δ %	p
nii_set_dtype	5.20 ±0.00	5.27 ±0.00	+1.4%	—
nii_extract_label	5.27 ±0.00	5.34 ±0.00	+1.3%	—
nii_pad_to	5.32 ±0.00	5.39 ±0.00	+1.3%	—
nii_map_labels	5.39 ±0.00	5.46 ±0.00	+1.3%	—
nii_apply_crop	5.77 ±0.00	5.84 ±0.00	+1.2%	—

… 30 more measurements

Measurement	baseline MiB (median ±½·range)	head MiB (median ±½·range)	Δ %	p
nii_fill_holes	6.18 ±0.00	6.25 ±0.00	+1.2%	—
poi_calc_centroids_nocrop	5.89 ±0.00	5.96 ±0.00	+1.2%	—
poi_calc_centroids	5.95 ±0.00	6.02 ±0.00	+1.2%	—
nii_get_connected_components	6.52 ±0.00	6.59 ±0.00	+1.1%	—
nii_filter_connected_components	6.77 ±0.00	6.84 ±0.00	+1.0%	—
nii_load_img	3.56 ±0.00	3.53 ±0.00	-1.0%	—
nii_erode_msk	5.84 ±0.00	5.88 ±0.00	+0.8%	—
nii_dilate_msk	5.83 ±0.00	5.87 ±0.00	+0.7%	—
poi_resample_from_to	5.18 ±0.00	5.21 ±0.00	+0.6%	—
nii_load_seg	5.91 ±0.00	5.94 ±0.00	+0.6%	—
nii_reorient	5.80 ±0.00	5.84 ±0.00	+0.5%	—
nii_rescale_seg	5.88 ±0.00	5.91 ±0.00	+0.5%	—
nii_rescale	6.11 ±0.00	6.10 ±0.00	-0.1%	—
nii_resample_from_to	6.23 ±0.00	6.23 ±0.00	-0.1%	—
nii_save	3.65 ±0.00	3.65 ±0.00	+0.0%	—
nii_volumes	3.46 ±0.00	3.46 ±0.00	+0.0%	—
nii_center_of_masses	3.21 ±0.00	3.21 ±0.00	+0.0%	—
poi_reorient	3.77 ±0.00	3.77 ±0.00	+0.0%	—
poi_to_global	3.02 ±0.00	3.02 ±0.00	+0.0%	—
metric_voxels	3536.00 ±0.00	3536.00 ±0.00	+0.0%	—
metric_labels	7.00 ±0.00	7.00 ±0.00	+0.0%	—
metric_foreground_pct	50.17 ±0.00	50.17 ±0.00	+0.0%	—
nii_get_array	1.59 ±0.00	1.59 ±0.00	+0.0% (noise)	—
nii_compute_crop	2.84 ±0.00	2.84 ±0.00	+0.0% (noise)	—
nii_unique	2.90 ±0.00	2.90 ±0.00	+0.0% (noise)	—
poi_rescale	2.54 ±0.00	2.54 ±0.00	+0.0% (noise)	—
poi_local_to_global_arr	2.89 ±0.00	2.89 ±0.00	+0.0% (noise)	—
poi_save	1.40 ±0.00	1.40 ±0.00	+0.0% (noise)	—
poi_map_labels	1.71 ±0.00	1.71 ±0.00	+0.0% (noise)	—
poi_load	1.55 ±0.00	1.55 ±0.00	+0.0% (noise)	—

Gate: a measurement fails when the baseline is ≥ 1 MiB, the median grows by ≥ 50%, and Welch's t-test gives p < 0.05. metric_* rows are context only.