3.9 issuses

[robert-graf]

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Benchmark comparison

Speed (wall time per call)

baseline 5f96de9 vs head 5f96de9 · python 3.11.15 · 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
poi_calc_centroids_nocrop	4.53 ±0.04	4.10 ±0.05	-9.6%	0.000
nii_erode_msk	6.52 ±0.17	6.10 ±0.09	-6.5%	0.003
nii_rescale_seg	3.20 ±0.03	3.03 ±0.06	-5.2%	0.000
nii_filter_connected_components	4.42 ±0.06	4.20 ±0.15	-5.0%	0.088
nii_load_img	11.04 ±0.15	10.66 ±0.19	-3.4%	0.003

… 31 more measurements

Measurement	baseline ms (median ±½·range)	head ms (median ±½·range)	Δ %	p
nii_save	11.78 ±0.18	11.49 ±0.08	-2.5%	0.017
poi_calc_poi_from_subreg_vert	12.81 ±0.27	12.60 ±0.19	-1.7%	0.143
nii_fill_holes	4.45 ±0.06	4.38 ±0.02	-1.6%	0.030
nii_rescale	40.35 ±0.59	39.89 ±0.14	-1.2%	0.094
nii_resample_from_to	42.30 ±0.20	41.82 ±0.26	-1.1%	0.009
nii_dilate_msk	123.58 ±0.40	123.03 ±0.51	-0.4%	0.130
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	0.05 ±0.00	0.03 ±0.01	-47.9% (noise)	0.001
poi_to_global	0.23 ±0.02	0.15 ±0.02	-32.6% (noise)	0.000
poi_reorient	0.47 ±0.05	0.33 ±0.03	-29.4% (noise)	0.002
nii_extract_label	0.46 ±0.04	0.34 ±0.02	-27.9% (noise)	0.001
nii_pad_to	0.74 ±0.05	0.54 ±0.01	-26.9% (noise)	0.000
nii_set_dtype	0.50 ±0.03	0.37 ±0.03	-25.0% (noise)	0.000
poi_load	1.19 ±0.04	0.90 ±0.11	-23.8% (noise)	0.020
poi_map_labels	0.18 ±0.01	0.13 ±0.01	-23.8% (noise)	0.000
nii_reorient	0.87 ±0.04	0.67 ±0.03	-22.8% (noise)	0.000
nii_apply_crop	0.68 ±0.03	0.53 ±0.04	-22.3% (noise)	0.000
nii_map_labels	1.15 ±0.06	0.90 ±0.02	-21.8% (noise)	0.000
poi_rescale	0.22 ±0.02	0.18 ±0.00	-18.2% (noise)	0.002
nii_compute_crop	0.33 ±0.02	0.27 ±0.02	-18.1% (noise)	0.001
poi_resample_from_to	0.69 ±0.02	0.57 ±0.07	-17.6% (noise)	0.016
nii_load_seg	2.97 ±0.16	2.53 ±0.05	-14.9% (noise)	0.001
nii_get_connected_components	2.40 ±0.06	2.10 ±0.03	-12.5% (noise)	0.000
poi_local_to_global_arr	0.33 ±0.02	0.29 ±0.04	-11.5% (noise)	0.049
poi_save	0.45 ±0.03	0.39 ±0.05	-11.4% (noise)	0.024
poi_calc_centroids	2.53 ±0.10	2.31 ±0.04	-8.9% (noise)	0.005
nii_unique	0.69 ±0.01	0.63 ±0.02	-8.1% (noise)	0.002
nii_volumes	1.89 ±0.02	1.79 ±0.02	-5.7% (noise)	0.000
nii_center_of_masses	1.77 ±0.02	1.67 ±0.03	-5.7% (noise)	0.001

ct_2d — shape (73, 47, 1)

Measurement	baseline ms (median ±½·range)	head ms (median ±½·range)	Δ %	p
nii_resample_from_to	7.83 ±0.03	7.33 ±0.13	-6.3%	0.000
nii_rescale	5.65 ±0.09	5.38 ±0.03	-4.8%	0.001
nii_dilate_msk	14.63 ±0.09	14.65 ±0.09	+0.1%	0.905
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_get_array	0.02 ±0.00	0.02 ±0.00	-18.4% (noise)	0.013
poi_rescale	0.29 ±0.01	0.25 ±0.01	-15.6% (noise)	0.002
nii_set_dtype	0.46 ±0.01	0.40 ±0.02	-13.0% (noise)	0.003
nii_extract_label	0.48 ±0.03	0.42 ±0.02	-12.5% (noise)	0.001
poi_reorient	0.49 ±0.04	0.43 ±0.02	-12.1% (noise)	0.026
poi_to_global	0.26 ±0.02	0.23 ±0.03	-11.9% (noise)	0.357
nii_reorient	0.91 ±0.03	0.81 ±0.03	-11.1% (noise)	0.001
nii_apply_crop	0.72 ±0.01	0.64 ±0.01	-10.6% (noise)	0.000
poi_save	0.51 ±0.02	0.46 ±0.02	-10.4% (noise)	0.003
nii_filter_connected_components	0.92 ±0.03	0.83 ±0.03	-9.9% (noise)	0.000
nii_save	1.56 ±0.11	1.41 ±0.05	-9.7% (noise)	0.010
nii_rescale_seg	0.83 ±0.02	0.75 ±0.05	-9.4% (noise)	0.102
poi_map_labels	0.22 ±0.02	0.20 ±0.01	-8.7% (noise)	0.022
poi_calc_centroids_nocrop	1.20 ±0.03	1.11 ±0.02	-7.8% (noise)	0.001
nii_load_seg	1.85 ±0.05	1.71 ±0.08	-7.7% (noise)	0.002
poi_resample_from_to	0.77 ±0.01	0.71 ±0.03	-7.5% (noise)	0.030
nii_load_img	1.62 ±0.03	1.50 ±0.06	-7.4% (noise)	0.002
nii_volumes	0.31 ±0.01	0.28 ±0.01	-7.3% (noise)	0.022
poi_local_to_global_arr	0.37 ±0.03	0.34 ±0.03	-7.2% (noise)	0.352
nii_center_of_masses	0.22 ±0.01	0.21 ±0.02	-6.9% (noise)	0.489
nii_compute_crop	0.15 ±0.01	0.14 ±0.01	-6.8% (noise)	0.012
nii_unique	0.13 ±0.01	0.12 ±0.01	-5.0% (noise)	0.097
poi_calc_centroids	1.01 ±0.07	0.97 ±0.06	-4.6% (noise)	0.107
poi_load	1.23 ±0.04	1.19 ±0.04	-3.7% (noise)	0.833
nii_pad_to	0.57 ±0.04	0.56 ±0.04	-2.5% (noise)	0.127
nii_fill_holes	0.89 ±0.04	0.87 ±0.03	-2.0% (noise)	0.298
nii_erode_msk	1.01 ±0.03	0.99 ±0.10	-1.9% (noise)	0.877
nii_get_connected_components	0.69 ±0.04	0.68 ±0.04	-1.6% (noise)	0.079
nii_map_labels	0.50 ±0.03	0.49 ±0.03	-1.6% (noise)	0.145

mri_3d — shape (68, 52, 67)

Measurement	baseline ms (median ±½·range)	head ms (median ±½·range)	Δ %	p
nii_load_seg	3.06 ±0.06	2.80 ±0.09	-8.5%	0.001
poi_calc_centroids_nocrop	8.97 ±0.10	8.55 ±0.09	-4.6%	0.000
nii_load_img	9.05 ±0.13	8.70 ±0.08	-3.9%	0.001
nii_save	9.61 ±0.14	9.27 ±0.08	-3.5%	0.001
poi_calc_poi_from_subreg_vert	12.13 ±0.07	11.72 ±0.06	-3.4%	0.000

… 31 more measurements

Measurement	baseline ms (median ±½·range)	head ms (median ±½·range)	Δ %	p
nii_erode_msk	7.97 ±0.16	7.71 ±0.08	-3.3%	0.022
nii_resample_from_to	40.89 ±0.25	39.70 ±0.42	-2.9%	0.006
nii_rescale_seg	3.41 ±0.14	3.32 ±0.10	-2.7%	0.222
nii_fill_holes	5.65 ±0.05	5.50 ±0.08	-2.6%	0.044
nii_filter_connected_components	4.83 ±0.09	4.71 ±0.05	-2.4%	0.018
nii_rescale	38.76 ±0.21	38.04 ±0.29	-1.9%	0.003
nii_dilate_msk	159.99 ±0.63	159.99 ±0.43	-0.0%	0.307
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	0.07 ±0.01	0.05 ±0.00	-21.8% (noise)	0.012
nii_pad_to	0.83 ±0.04	0.71 ±0.06	-14.6% (noise)	0.004
nii_extract_label	0.53 ±0.03	0.46 ±0.02	-13.0% (noise)	0.001
poi_save	0.61 ±0.02	0.53 ±0.07	-12.3% (noise)	0.117
poi_reorient	0.53 ±0.03	0.47 ±0.02	-10.8% (noise)	0.012
nii_unique	0.74 ±0.04	0.66 ±0.02	-10.4% (noise)	0.004
poi_local_to_global_arr	0.39 ±0.01	0.35 ±0.02	-9.8% (noise)	0.013
nii_reorient	0.95 ±0.03	0.87 ±0.06	-8.0% (noise)	0.064
poi_resample_from_to	0.86 ±0.03	0.79 ±0.03	-7.7% (noise)	0.008
nii_apply_crop	0.80 ±0.05	0.74 ±0.03	-7.7% (noise)	0.018
nii_compute_crop	0.36 ±0.02	0.34 ±0.02	-7.3% (noise)	0.133
poi_rescale	0.30 ±0.01	0.28 ±0.01	-6.5% (noise)	0.011
poi_map_labels	0.26 ±0.02	0.25 ±0.00	-5.8% (noise)	0.068
nii_map_labels	1.18 ±0.06	1.11 ±0.01	-5.6% (noise)	0.021
nii_set_dtype	0.57 ±0.04	0.55 ±0.02	-4.6% (noise)	0.047
nii_get_connected_components	2.44 ±0.09	2.34 ±0.09	-3.8% (noise)	0.137
poi_calc_centroids	2.84 ±0.04	2.76 ±0.11	-3.0% (noise)	0.466
poi_to_global	0.29 ±0.00	0.28 ±0.01	-1.9% (noise)	0.240
poi_load	2.50 ±0.08	2.54 ±0.14	+1.8% (noise)	0.583
nii_volumes	2.00 ±0.03	1.97 ±0.04	-1.7% (noise)	0.043
nii_center_of_masses	2.04 ±0.04	2.02 ±0.05	-0.8% (noise)	0.196

mri_2d — shape (68, 52, 1)

Measurement	baseline ms (median ±½·range)	head ms (median ±½·range)	Δ %	p
nii_resample_from_to	7.73 ±0.15	7.36 ±0.03	-4.9%	0.003
nii_rescale	5.65 ±0.07	5.59 ±0.07	-1.2%	0.047
nii_dilate_msk	19.29 ±0.04	19.33 ±0.11	+0.2%	0.541
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	-15.9% (noise)	0.005
nii_set_dtype	0.45 ±0.05	0.38 ±0.03	-14.6% (noise)	0.022
nii_load_img	1.72 ±0.03	1.50 ±0.04	-12.7% (noise)	0.000
nii_rescale_seg	0.87 ±0.06	0.76 ±0.02	-12.7% (noise)	0.008
nii_save	1.49 ±0.05	1.31 ±0.05	-12.2% (noise)	0.001
nii_apply_crop	0.76 ±0.05	0.67 ±0.05	-11.6% (noise)	0.018
nii_pad_to	0.59 ±0.03	0.53 ±0.03	-9.9% (noise)	0.015
nii_load_seg	1.83 ±0.10	1.66 ±0.04	-9.3% (noise)	0.011
nii_extract_label	0.45 ±0.02	0.41 ±0.03	-9.2% (noise)	0.100
nii_reorient	0.90 ±0.03	0.82 ±0.02	-8.9% (noise)	0.003
poi_to_global	0.29 ±0.01	0.26 ±0.02	-8.8% (noise)	0.108
nii_map_labels	0.52 ±0.04	0.48 ±0.07	-7.4% (noise)	0.668
poi_local_to_global_arr	0.37 ±0.02	0.35 ±0.02	-6.4% (noise)	0.189
nii_compute_crop	0.15 ±0.01	0.14 ±0.01	-6.4% (noise)	0.428
nii_erode_msk	1.33 ±0.04	1.28 ±0.03	-4.0% (noise)	0.074
nii_unique	0.13 ±0.01	0.12 ±0.00	-4.0% (noise)	0.279
poi_save	0.58 ±0.05	0.55 ±0.03	-3.6% (noise)	0.121
nii_volumes	0.51 ±0.01	0.49 ±0.02	-3.1% (noise)	0.463
poi_map_labels	0.26 ±0.02	0.25 ±0.01	-2.8% (noise)	0.588
nii_get_connected_components	0.66 ±0.03	0.65 ±0.04	-2.7% (noise)	0.141
nii_fill_holes	1.12 ±0.01	1.09 ±0.02	-2.6% (noise)	0.108
poi_calc_centroids_nocrop	1.45 ±0.02	1.41 ±0.05	-2.4% (noise)	0.827
poi_reorient	0.48 ±0.02	0.49 ±0.04	+2.3% (noise)	0.871
poi_rescale	0.29 ±0.02	0.30 ±0.01	+1.6% (noise)	0.541
poi_calc_centroids	1.17 ±0.03	1.18 ±0.05	+1.5% (noise)	0.288
nii_center_of_masses	0.45 ±0.02	0.44 ±0.02	-1.2% (noise)	0.637
poi_resample_from_to	0.78 ±0.03	0.78 ±0.03	-0.7% (noise)	0.567
poi_load	2.23 ±0.09	2.22 ±0.09	-0.5% (noise)	0.339
nii_filter_connected_components	0.88 ±0.05	0.87 ±0.02	-0.4% (noise)	0.811

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 5f96de9 vs head 5f96de9 · python 3.11.15 · 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_load_img	3.53 ±0.00	3.58 ±0.00	+1.6%	—
nii_load_seg	5.89 ±0.00	5.96 ±0.00	+1.1%	—
nii_dilate_msk	5.91 ±0.00	5.87 ±0.00	-0.7%	—
poi_resample_from_to	5.16 ±0.00	5.18 ±0.00	+0.5%	—
nii_set_dtype	5.16 ±0.00	5.18 ±0.00	+0.5%	—

… 31 more measurements

Measurement	baseline MiB (median ±½·range)	head MiB (median ±½·range)	Δ %	p
nii_pad_to	5.34 ±0.00	5.37 ±0.00	+0.4%	—
nii_extract_label	5.35 ±0.00	5.37 ±0.00	+0.4%	—
nii_map_labels	5.41 ±0.00	5.43 ±0.00	+0.4%	—
nii_reorient	5.79 ±0.00	5.81 ±0.00	+0.4%	—
nii_apply_crop	5.79 ±0.00	5.81 ±0.00	+0.4%	—
poi_calc_centroids_nocrop	5.84 ±0.00	5.87 ±0.00	+0.4%	—
poi_calc_centroids	5.97 ±0.00	6.00 ±0.00	+0.4%	—
nii_fill_holes	6.20 ±0.00	6.22 ±0.00	+0.4%	—
nii_get_connected_components	6.54 ±0.00	6.56 ±0.00	+0.4%	—
nii_filter_connected_components	6.79 ±0.00	6.81 ±0.00	+0.3%	—
poi_calc_poi_from_subreg_vert	7.03 ±0.00	7.05 ±0.00	+0.3%	—
nii_rescale_seg	5.86 ±0.00	5.88 ±0.00	+0.3%	—
nii_erode_msk	5.90 ±0.00	5.89 ±0.00	-0.3%	—
nii_rescale	6.05 ±0.00	6.07 ±0.00	+0.3%	—
poi_to_global	3.08 ±0.00	3.09 ±0.00	+0.3%	—
nii_resample_from_to	6.18 ±0.00	6.19 ±0.00	+0.3%	—
nii_center_of_masses	3.27 ±0.00	3.28 ±0.00	+0.2%	—
nii_volumes	3.52 ±0.00	3.53 ±0.00	+0.2%	—
poi_reorient	3.83 ±0.00	3.84 ±0.00	+0.2%	—
nii_save	3.71 ±0.00	3.71 ±0.00	+0.1%	—
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%	—
poi_rescale	2.60 ±0.00	2.61 ±0.00	+0.3% (noise)	—
nii_compute_crop	2.89 ±0.00	2.90 ±0.00	+0.3% (noise)	—
poi_local_to_global_arr	2.95 ±0.00	2.96 ±0.00	+0.3% (noise)	—
nii_unique	2.96 ±0.00	2.96 ±0.00	+0.3% (noise)	—
nii_get_array	1.65 ±0.00	1.65 ±0.00	+0.0% (noise)	—
poi_save	1.41 ±0.00	1.41 ±0.00	+0.0% (noise)	—
poi_map_labels	1.78 ±0.00	1.78 ±0.00	+0.0% (noise)	—
poi_load	1.62 ±0.00	1.62 ±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_load_img	3.46 ±0.00	3.51 ±0.00	+1.5%	—
nii_load_seg	5.83 ±0.00	5.89 ±0.00	+1.1%	—
nii_dilate_msk	5.84 ±0.00	5.80 ±0.00	-0.7%	—
poi_resample_from_to	5.09 ±0.00	5.11 ±0.00	+0.5%	—
nii_set_dtype	5.09 ±0.00	5.12 ±0.00	+0.5%	—

… 30 more measurements

Measurement	baseline MiB (median ±½·range)	head MiB (median ±½·range)	Δ %	p
nii_pad_to	5.28 ±0.00	5.30 ±0.00	+0.4%	—
nii_extract_label	5.28 ±0.00	5.30 ±0.00	+0.4%	—
nii_map_labels	5.34 ±0.00	5.37 ±0.00	+0.4%	—
nii_reorient	5.72 ±0.00	5.74 ±0.00	+0.4%	—
nii_apply_crop	5.72 ±0.00	5.74 ±0.00	+0.4%	—
poi_calc_centroids_nocrop	5.84 ±0.00	5.86 ±0.00	+0.4%	—
poi_calc_centroids	5.91 ±0.00	5.93 ±0.00	+0.4%	—
nii_fill_holes	6.13 ±0.00	6.16 ±0.00	+0.4%	—
nii_get_connected_components	6.47 ±0.00	6.49 ±0.00	+0.4%	—
nii_filter_connected_components	6.72 ±0.00	6.74 ±0.00	+0.3%	—
nii_rescale_seg	5.80 ±0.00	5.81 ±0.00	+0.3%	—
nii_erode_msk	5.84 ±0.00	5.82 ±0.00	-0.3%	—
nii_rescale	5.98 ±0.00	6.00 ±0.00	+0.3%	—
poi_to_global	3.01 ±0.00	3.02 ±0.00	+0.3%	—
nii_resample_from_to	6.11 ±0.00	6.12 ±0.00	+0.3%	—
nii_center_of_masses	3.20 ±0.00	3.21 ±0.00	+0.2%	—
nii_volumes	3.45 ±0.00	3.46 ±0.00	+0.2%	—
poi_reorient	3.76 ±0.00	3.77 ±0.00	+0.2%	—
nii_save	3.64 ±0.00	3.65 ±0.00	+0.1%	—
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%	—
poi_rescale	2.54 ±0.00	2.54 ±0.00	+0.3% (noise)	—
nii_compute_crop	2.83 ±0.00	2.84 ±0.00	+0.3% (noise)	—
poi_local_to_global_arr	2.89 ±0.00	2.89 ±0.00	+0.3% (noise)	—
nii_unique	2.89 ±0.00	2.90 ±0.00	+0.3% (noise)	—
nii_get_array	1.59 ±0.00	1.59 ±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_load_img	3.52 ±0.06	3.57 ±0.00	+1.4%	0.039
nii_load_seg	5.83 ±0.00	5.89 ±0.00	+1.1%	—
nii_dilate_msk	5.84 ±0.00	5.80 ±0.00	-0.7%	—
poi_resample_from_to	5.09 ±0.00	5.11 ±0.00	+0.5%	—
nii_set_dtype	5.16 ±0.00	5.18 ±0.00	+0.5%	—

… 31 more measurements

Measurement	baseline MiB (median ±½·range)	head MiB (median ±½·range)	Δ %	p
nii_pad_to	5.28 ±0.00	5.30 ±0.00	+0.4%	—
nii_extract_label	5.28 ±0.00	5.30 ±0.00	+0.4%	—
nii_map_labels	5.34 ±0.00	5.37 ±0.00	+0.4%	—
nii_reorient	5.72 ±0.00	5.74 ±0.00	+0.4%	—
nii_apply_crop	5.72 ±0.00	5.74 ±0.00	+0.4%	—
poi_calc_centroids_nocrop	5.78 ±0.00	5.80 ±0.00	+0.4%	—
poi_calc_centroids	5.91 ±0.00	5.93 ±0.00	+0.4%	—
nii_fill_holes	6.13 ±0.00	6.16 ±0.00	+0.4%	—
nii_get_connected_components	6.47 ±0.00	6.49 ±0.00	+0.4%	—
nii_filter_connected_components	6.72 ±0.00	6.74 ±0.00	+0.3%	—
poi_calc_poi_from_subreg_vert	7.03 ±0.00	7.05 ±0.00	+0.3%	—
nii_rescale_seg	5.80 ±0.00	5.81 ±0.00	+0.3%	—
nii_erode_msk	5.84 ±0.00	5.82 ±0.00	-0.3%	—
nii_rescale	5.98 ±0.00	6.00 ±0.00	+0.3%	—
poi_to_global	3.01 ±0.00	3.02 ±0.00	+0.3%	—
nii_resample_from_to	6.11 ±0.00	6.12 ±0.00	+0.3%	—
nii_center_of_masses	3.20 ±0.00	3.21 ±0.00	+0.2%	—
nii_volumes	3.45 ±0.00	3.46 ±0.00	+0.2%	—
poi_reorient	3.76 ±0.00	3.77 ±0.00	+0.2%	—
nii_save	3.64 ±0.00	3.65 ±0.00	+0.1%	—
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%	—
poi_rescale	2.54 ±0.00	2.54 ±0.00	+0.3% (noise)	—
nii_compute_crop	2.83 ±0.00	2.84 ±0.00	+0.3% (noise)	—
poi_local_to_global_arr	2.89 ±0.00	2.89 ±0.00	+0.3% (noise)	—
nii_unique	2.89 ±0.00	2.90 ±0.00	+0.3% (noise)	—
nii_get_array	1.59 ±0.00	1.59 ±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_load_img	3.52 ±0.00	3.57 ±0.00	+1.4%	—
nii_load_seg	5.83 ±0.00	5.89 ±0.00	+1.1%	—
nii_dilate_msk	5.84 ±0.00	5.80 ±0.00	-0.7%	—
poi_resample_from_to	5.09 ±0.00	5.11 ±0.00	+0.5%	—
nii_set_dtype	5.16 ±0.00	5.18 ±0.00	+0.5%	—

… 30 more measurements

Measurement	baseline MiB (median ±½·range)	head MiB (median ±½·range)	Δ %	p
nii_pad_to	5.28 ±0.00	5.30 ±0.00	+0.4%	—
nii_extract_label	5.28 ±0.00	5.30 ±0.00	+0.4%	—
nii_map_labels	5.34 ±0.00	5.37 ±0.00	+0.4%	—
nii_reorient	5.72 ±0.00	5.74 ±0.00	+0.4%	—
nii_apply_crop	5.72 ±0.00	5.74 ±0.00	+0.4%	—
poi_calc_centroids_nocrop	5.84 ±0.00	5.86 ±0.00	+0.4%	—
poi_calc_centroids	5.91 ±0.00	5.93 ±0.00	+0.4%	—
nii_fill_holes	6.13 ±0.00	6.16 ±0.00	+0.4%	—
nii_get_connected_components	6.47 ±0.00	6.49 ±0.00	+0.4%	—
nii_filter_connected_components	6.72 ±0.00	6.74 ±0.00	+0.3%	—
nii_rescale_seg	5.80 ±0.00	5.81 ±0.00	+0.3%	—
nii_erode_msk	5.84 ±0.00	5.82 ±0.00	-0.3%	—
nii_rescale	5.98 ±0.00	6.00 ±0.00	+0.3%	—
poi_to_global	3.01 ±0.00	3.02 ±0.00	+0.3%	—
nii_resample_from_to	6.11 ±0.00	6.12 ±0.00	+0.3%	—
nii_center_of_masses	3.20 ±0.00	3.21 ±0.00	+0.2%	—
nii_volumes	3.45 ±0.00	3.46 ±0.00	+0.2%	—
poi_reorient	3.76 ±0.00	3.77 ±0.00	+0.2%	—
nii_save	3.64 ±0.00	3.65 ±0.00	+0.1%	—
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%	—
poi_rescale	2.54 ±0.00	2.54 ±0.00	+0.3% (noise)	—
nii_compute_crop	2.83 ±0.00	2.84 ±0.00	+0.3% (noise)	—
poi_local_to_global_arr	2.89 ±0.00	2.89 ±0.00	+0.3% (noise)	—
nii_unique	2.89 ±0.00	2.90 ±0.00	+0.3% (noise)	—
nii_get_array	1.59 ±0.00	1.59 ±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.