Better Worktrees, Part 2: The Benchmarks

This follows up on my Treepool post with some benchmark numbers.

The experiment

I measured how much time twt could save across monorepos of different sizes and different package managers on my M4 Pro.

The monorepos had the following numbers of direct dependencies:

XS: 160
S: 240
M: 320
L: 400
XL: 473

These counts include only direct dependencies. The XL fixtures contain roughly 5,700 unique package/version pairs, including transitive dependencies.

I tested the following runtimes/package managers:

npm
yarn v1
yarn berry with nodeLinker=node_modules
pnpm with default node-linker=isolated
bun with linker=isolated

Both paths used a warm package cache, which is a reasonable assumption for development environments. The twt path also used an available warm slot where dependencies had already been installed at least once.

I then measured the time it takes to:

Create a new regular worktree and install deps
versus allocate a warm twt slot and install dependencies

The observations & my thoughts

twt was fastest in every tested case, which is unsurprising since twt slots literally have the dependencies pre-installed.
Bun is fast. twt still reduces the time until a worktree is ready, but the absolute savings are smaller with Bun.
The time saved with twt is cool, but I was more fascinated by the differences in install time between package managers, even with warm caches.

The raw numbers

Worktree → ready to code 5 runs / median time

Regular worktree Warm Treepool slot

XS160 direct dependencies · 12 workspaces

Seconds · same linear scale for all managers in this size

npm v11.19.0 4.5× faster · 2.61 s saved

Regular

3.35 s

Treepool

0.74 s

Breakdown & measurements 1,016 unique packages

Unique package/version pairs: 1,016
Installed instances: 1,091

Median times in seconds
Stage	Regular	Treepool
Allocate	0.04 s	0.20 s
Install	3.31 s	0.54 s
Total	3.35 s	0.74 s

Every run · seconds
Run	Mode	Allocate	Install	Total
1	Treepool	0.244	0.720	0.965
1	Regular	0.046	3.336	3.383
2	Regular	0.042	3.310	3.353
2	Treepool	0.207	0.491	0.699
3	Treepool	0.186	0.541	0.728
3	Regular	0.045	3.301	3.347
4	Regular	0.039	3.260	3.299
4	Treepool	0.204	0.542	0.747
5	Treepool	0.203	0.537	0.742
5	Regular	0.047	3.358	3.406

Yarn v1 v1.22.22 8.5× faster · 3.18 s saved

Regular

3.60 s

Treepool

0.42 s

Breakdown & measurements 1,021 unique packages

Unique package/version pairs: 1,021
Installed instances: 1,106

Median times in seconds
Stage	Regular	Treepool
Allocate	0.04 s	0.18 s
Install	3.56 s	0.24 s
Total	3.60 s	0.42 s

Every run · seconds
Run	Mode	Allocate	Install	Total
1	Treepool	0.243	0.239	0.483
1	Regular	0.038	5.370	5.410
2	Regular	0.040	3.559	3.600
2	Treepool	0.183	0.238	0.422
3	Treepool	0.187	0.241	0.428
3	Regular	0.038	3.562	3.601
4	Regular	0.038	3.555	3.593
4	Treepool	0.183	0.231	0.414
5	Treepool	0.180	0.236	0.417
5	Regular	0.070	3.599	3.671

Yarn Berry v4.18.1 3.6× faster · 2.22 s saved

Regular

3.07 s

Treepool

0.85 s

Breakdown & measurements 1,036 unique packages

Unique package/version pairs: 1,036
Installed instances: 1,126

Median times in seconds
Stage	Regular	Treepool
Allocate	0.04 s	0.20 s
Install	3.02 s	0.65 s
Total	3.07 s	0.85 s

Every run · seconds
Run	Mode	Allocate	Install	Total
1	Regular	0.046	3.024	3.072
1	Treepool	0.258	0.771	1.030
2	Treepool	0.189	0.648	0.838
2	Regular	0.040	3.005	3.046
3	Regular	0.041	3.028	3.070
3	Treepool	0.207	0.663	0.871
4	Treepool	0.191	0.650	0.842
4	Regular	0.044	2.916	2.961
5	Regular	0.044	3.044	3.088
5	Treepool	0.197	0.655	0.853

pnpm v12.10.1 4.4× faster · 0.81 s saved

Regular

1.05 s

Treepool

0.24 s

Breakdown & measurements 1,016 unique packages

Unique package/version pairs: 1,016
Installed instances: 1,016

Median times in seconds
Stage	Regular	Treepool
Allocate	0.05 s	0.19 s
Install	1.01 s	0.05 s
Total	1.05 s	0.24 s

Every run · seconds
Run	Mode	Allocate	Install	Total
1	Regular	0.079	3.252	3.332
1	Treepool	0.259	0.256	0.516
2	Treepool	0.190	0.045	0.237
2	Regular	0.046	1.008	1.054
3	Regular	0.048	1.005	1.055
3	Treepool	0.204	0.041	0.246
4	Treepool	0.192	0.047	0.240
4	Regular	0.046	0.976	1.023
5	Regular	0.045	0.970	1.016
5	Treepool	0.186	0.046	0.233

Bun v1.3.14 3.0× faster · 0.45 s saved

Regular

0.68 s

Treepool

0.23 s

Breakdown & measurements 1,016 unique packages

Unique package/version pairs: 1,016
Installed instances: 1,018

Median times in seconds
Stage	Regular	Treepool
Allocate	0.04 s	0.18 s
Install	0.60 s	0.04 s
Total	0.68 s	0.23 s

Every run · seconds
Run	Mode	Allocate	Install	Total
1	Treepool	0.180	0.404	0.588
1	Regular	0.076	1.071	1.147
2	Regular	0.040	0.641	0.682
2	Treepool	0.238	0.039	0.278
3	Treepool	0.185	0.039	0.225
3	Regular	0.040	0.598	0.639
4	Regular	0.073	0.602	0.676
4	Treepool	0.183	0.037	0.220
5	Treepool	0.179	0.040	0.220
5	Regular	0.038	0.604	0.643

S240 direct dependencies · 24 workspaces

Seconds · same linear scale for all managers in this size

npm v11.19.0 7.2× faster · 9.79 s saved

Regular

11.36 s

Treepool

1.57 s

Breakdown & measurements 1,855 unique packages

Unique package/version pairs: 1,855
Installed instances: 3,337

Median times in seconds
Stage	Regular	Treepool
Allocate	0.09 s	0.20 s
Install	11.28 s	1.36 s
Total	11.36 s	1.57 s

Every run · seconds
Run	Mode	Allocate	Install	Total
1	Regular	0.078	11.500	11.578
1	Treepool	0.198	1.456	1.655
2	Treepool	0.209	1.361	1.571
2	Regular	0.088	11.293	11.381
3	Regular	0.081	11.279	11.361
3	Treepool	0.198	1.359	1.558
4	Treepool	0.189	1.418	1.608
4	Regular	0.090	11.249	11.340
5	Regular	0.088	11.272	11.361
5	Treepool	0.203	1.360	1.563

Yarn v1 v1.22.22 23.6× faster · 13.09 s saved

Regular

13.67 s

Treepool

0.58 s

Breakdown & measurements 1,864 unique packages

Unique package/version pairs: 1,864
Installed instances: 3,350

Median times in seconds
Stage	Regular	Treepool
Allocate	0.07 s	0.24 s
Install	13.59 s	0.35 s
Total	13.67 s	0.58 s

Every run · seconds
Run	Mode	Allocate	Install	Total
1	Regular	0.076	15.260	15.337
1	Treepool	0.242	0.352	0.595
2	Treepool	0.185	0.351	0.537
2	Regular	0.072	14.491	14.564
3	Regular	0.075	13.427	13.504
3	Treepool	0.241	0.340	0.583
4	Treepool	0.235	0.340	0.577
4	Regular	0.068	13.514	13.584
5	Regular	0.074	13.594	13.669
5	Treepool	0.228	0.349	0.578

Yarn Berry v4.18.1 4.9× faster · 6.53 s saved

Regular

8.20 s

Treepool

1.66 s

Breakdown & measurements 1,876 unique packages

Unique package/version pairs: 1,876
Installed instances: 3,169

Median times in seconds
Stage	Regular	Treepool
Allocate	0.08 s	0.20 s
Install	8.11 s	1.47 s
Total	8.20 s	1.66 s

Every run · seconds
Run	Mode	Allocate	Install	Total
1	Treepool	0.248	1.622	1.872
1	Regular	0.074	8.130	8.205
2	Regular	0.085	8.109	8.195
2	Treepool	0.198	1.524	1.724
3	Treepool	0.195	1.468	1.664
3	Regular	0.048	8.155	8.204
4	Regular	0.084	8.067	8.152
4	Treepool	0.187	1.451	1.640
5	Treepool	0.200	1.457	1.658
5	Regular	0.080	8.049	8.131

pnpm v12.10.1 21.4× faster · 6.56 s saved

Regular

6.88 s

Treepool

0.32 s

Breakdown & measurements 1,855 unique packages

Unique package/version pairs: 1,855
Installed instances: 1,880

Median times in seconds
Stage	Regular	Treepool
Allocate	0.09 s	0.21 s
Install	6.80 s	0.09 s
Total	6.88 s	0.32 s

Every run · seconds
Run	Mode	Allocate	Install	Total
1	Treepool	0.202	0.374	0.578
1	Regular	0.072	8.675	8.748
2	Regular	0.085	6.709	6.796
2	Treepool	0.206	0.079	0.285
3	Treepool	0.238	0.083	0.322
3	Regular	0.089	6.822	6.912
4	Regular	0.082	6.798	6.882
4	Treepool	0.249	0.086	0.337
5	Treepool	0.189	0.090	0.280
5	Regular	0.089	6.781	6.871

Bun v1.3.14 4.0× faster · 1.11 s saved

Regular

1.47 s

Treepool

0.37 s

Breakdown & measurements 1,855 unique packages

Unique package/version pairs: 1,855
Installed instances: 1,943

Median times in seconds
Stage	Regular	Treepool
Allocate	0.07 s	0.24 s
Install	1.39 s	0.12 s
Total	1.47 s	0.37 s

Every run · seconds
Run	Mode	Allocate	Install	Total
1	Regular	0.070	1.987	2.059
1	Treepool	0.239	0.454	0.695
2	Treepool	0.238	0.123	0.362
2	Regular	0.078	1.388	1.467
3	Regular	0.073	1.435	1.509
3	Treepool	0.234	0.131	0.365
4	Treepool	0.242	0.122	0.366
4	Regular	0.070	1.392	1.464
5	Regular	0.076	1.394	1.471
5	Treepool	0.187	0.077	0.265

M320 direct dependencies · 36 workspaces

Seconds · same linear scale for all managers in this size

npm v11.19.0 8.0× faster · 22.04 s saved

Regular

25.17 s

Treepool

3.13 s

Breakdown & measurements 2,980 unique packages

Unique package/version pairs: 2,980
Installed instances: 5,561

Median times in seconds
Stage	Regular	Treepool
Allocate	0.08 s	0.20 s
Install	25.09 s	2.93 s
Total	25.17 s	3.13 s

Every run · seconds
Run	Mode	Allocate	Install	Total
1	Treepool	0.199	2.933	3.133
1	Regular	0.084	25.061	25.147
2	Regular	0.084	25.193	25.277
2	Treepool	0.244	3.049	3.294
3	Treepool	0.198	2.826	3.025
3	Regular	0.138	24.969	25.108
4	Regular	0.086	25.165	25.252
4	Treepool	0.252	3.153	3.406
5	Treepool	0.203	2.838	3.042
5	Regular	0.083	25.086	25.170

Yarn v1 v1.22.22 90.7× faster · 66.31 s saved

Regular

67.05 s

Treepool

0.74 s

Breakdown & measurements 3,014 unique packages

Unique package/version pairs: 3,014
Installed instances: 5,445

Median times in seconds
Stage	Regular	Treepool
Allocate	0.13 s	0.24 s
Install	66.93 s	0.50 s
Total	67.05 s	0.74 s

Every run · seconds
Run	Mode	Allocate	Install	Total
1	Treepool	0.234	0.504	0.739
1	Regular	0.129	66.685	66.815
2	Regular	0.126	67.600	67.728
2	Treepool	0.292	0.504	0.798
3	Treepool	0.185	0.506	0.692
3	Regular	0.126	66.927	67.054
4	Regular	0.130	66.836	66.967
4	Treepool	0.290	0.506	0.797
5	Treepool	0.236	0.503	0.740
5	Regular	0.130	66.976	67.107

Yarn Berry v4.18.1 6.3× faster · 15.64 s saved

Regular

18.62 s

Treepool

2.98 s

Breakdown & measurements 3,028 unique packages

Unique package/version pairs: 3,028
Installed instances: 4,799

Median times in seconds
Stage	Regular	Treepool
Allocate	0.08 s	0.26 s
Install	18.55 s	2.72 s
Total	18.62 s	2.98 s

Every run · seconds
Run	Mode	Allocate	Install	Total
1	Regular	0.090	18.867	18.958
1	Treepool	0.254	2.758	3.012
2	Treepool	0.314	2.446	2.761
2	Regular	0.082	18.509	18.592
3	Regular	0.070	18.616	18.688
3	Treepool	0.257	2.719	2.977
4	Treepool	0.198	2.525	2.723
4	Regular	0.072	18.547	18.620
5	Regular	0.080	18.526	18.607
5	Treepool	0.267	2.745	3.013

pnpm v12.10.1 61.2× faster · 22.98 s saved

Regular

23.36 s

Treepool

0.38 s

Breakdown & measurements 2,994 unique packages

Unique package/version pairs: 2,994
Installed instances: 3,116

Median times in seconds
Stage	Regular	Treepool
Allocate	0.08 s	0.25 s
Install	23.27 s	0.14 s
Total	23.36 s	0.38 s

Every run · seconds
Run	Mode	Allocate	Install	Total
1	Regular	0.083	25.658	25.743
1	Treepool	0.254	0.671	0.926
2	Treepool	0.198	0.146	0.345
2	Regular	0.080	26.758	26.839
3	Regular	0.090	23.274	23.365
3	Treepool	0.257	0.141	0.399
4	Treepool	0.249	0.132	0.381
4	Regular	0.079	21.864	21.944
5	Regular	0.082	21.117	21.200
5	Treepool	0.201	0.141	0.343

Bun v1.3.14 12.9× faster · 4.99 s saved

Regular

5.41 s

Treepool

0.42 s

Breakdown & measurements 2,978 unique packages

Unique package/version pairs: 2,978
Installed instances: 3,194

Median times in seconds
Stage	Regular	Treepool
Allocate	0.08 s	0.24 s
Install	5.34 s	0.18 s
Total	5.41 s	0.42 s

Every run · seconds
Run	Mode	Allocate	Install	Total
1	Treepool	0.237	0.771	1.009
1	Regular	0.131	6.766	6.898
2	Regular	0.069	5.207	5.277
2	Treepool	0.233	0.176	0.410
3	Treepool	0.180	0.183	0.364
3	Regular	0.075	5.335	5.411
4	Regular	0.072	5.298	5.370
4	Treepool	0.237	0.188	0.426
5	Treepool	0.237	0.182	0.420
5	Regular	0.077	5.462	5.540

L400 direct dependencies · 48 workspaces

Seconds · same linear scale for all managers in this size

npm v11.19.0 8.1× faster · 32.82 s saved

Regular

37.45 s

Treepool

4.63 s

Breakdown & measurements 3,936 unique packages

Unique package/version pairs: 3,936
Installed instances: 7,059

Median times in seconds
Stage	Regular	Treepool
Allocate	0.14 s	0.26 s
Install	37.32 s	4.36 s
Total	37.45 s	4.63 s

Every run · seconds
Run	Mode	Allocate	Install	Total
1	Regular	0.141	37.124	37.268
1	Treepool	0.256	4.464	4.721
2	Treepool	0.193	4.091	4.285
2	Regular	0.200	36.827	37.029
3	Regular	0.128	37.318	37.449
3	Treepool	0.304	4.424	4.732
4	Treepool	0.256	4.143	4.400
4	Regular	0.137	37.862	38.001
5	Regular	0.132	37.938	38.072
5	Treepool	0.261	4.364	4.627

Yarn v1 v1.22.22 111.8× faster · 105.72 s saved

Regular

106.68 s

Treepool

0.95 s

Breakdown & measurements 3,982 unique packages

Unique package/version pairs: 3,982
Installed instances: 6,761

Median times in seconds
Stage	Regular	Treepool
Allocate	0.13 s	0.29 s
Install	106.55 s	0.66 s
Total	106.68 s	0.95 s

Every run · seconds
Run	Mode	Allocate	Install	Total
1	Regular	0.127	106.549	106.678
1	Treepool	0.289	0.664	0.954
2	Treepool	0.242	0.660	0.903
2	Regular	0.132	107.156	107.289
3	Regular	0.128	105.921	106.050
3	Treepool	0.317	0.671	0.989
4	Treepool	0.194	0.639	0.833
4	Regular	0.135	106.208	106.344
5	Regular	0.130	107.494	107.625
5	Treepool	0.297	0.669	0.967

Yarn Berry v4.18.1 6.6× faster · 23.71 s saved

Regular

27.92 s

Treepool

4.21 s

Breakdown & measurements 3,995 unique packages

Unique package/version pairs: 3,995
Installed instances: 6,115

Median times in seconds
Stage	Regular	Treepool
Allocate	0.13 s	0.26 s
Install	27.81 s	3.95 s
Total	27.92 s	4.21 s

Every run · seconds
Run	Mode	Allocate	Install	Total
1	Treepool	0.262	3.951	4.215
1	Regular	0.130	28.079	28.211
2	Regular	0.129	27.808	27.938
2	Treepool	0.259	4.008	4.268
3	Treepool	0.204	3.683	3.888
3	Regular	0.085	27.838	27.924
4	Regular	0.142	27.601	27.744
4	Treepool	0.258	3.972	4.232
5	Treepool	0.192	3.657	3.850
5	Regular	0.137	27.517	27.655

pnpm v12.10.1 32.5× faster · 31.00 s saved

Regular

31.98 s

Treepool

0.98 s

Breakdown & measurements 3,957 unique packages

Unique package/version pairs: 3,957
Installed instances: 4,082

Median times in seconds
Stage	Regular	Treepool
Allocate	0.14 s	0.25 s
Install	31.84 s	0.72 s
Total	31.98 s	0.98 s

Every run · seconds
Run	Mode	Allocate	Install	Total
1	Treepool	0.266	0.716	0.983
1	Regular	0.143	31.836	31.980
2	Regular	0.133	30.443	30.577
2	Treepool	0.263	0.723	0.987
3	Treepool	0.196	0.147	0.344
3	Regular	0.147	30.822	30.969
4	Regular	0.089	35.202	35.292
4	Treepool	0.249	0.774	1.024
5	Treepool	0.204	0.190	0.395
5	Regular	0.138	37.299	37.438

Bun v1.3.14 18.5× faster · 9.08 s saved

Regular

9.59 s

Treepool

0.52 s

Breakdown & measurements 3,935 unique packages

Unique package/version pairs: 3,935
Installed instances: 4,165

Median times in seconds
Stage	Regular	Treepool
Allocate	0.13 s	0.24 s
Install	9.47 s	0.29 s
Total	9.59 s	0.52 s

Every run · seconds
Run	Mode	Allocate	Install	Total
1	Regular	0.130	10.029	10.160
1	Treepool	0.235	1.103	1.339
2	Treepool	0.230	0.286	0.518
2	Regular	0.132	9.999	10.133
3	Regular	0.127	9.465	9.593
3	Treepool	0.236	0.278	0.515
4	Treepool	0.232	0.285	0.518
4	Regular	0.129	9.438	9.568
5	Regular	0.127	9.422	9.551
5	Treepool	0.242	0.236	0.479

XL473 direct dependencies · 60 workspaces

Seconds · same linear scale for all managers in this size

npm v11.19.0 5.9× faster · 39.94 s saved

Regular

48.13 s

Treepool

8.19 s

Breakdown & measurements 5,712 unique packages

Unique package/version pairs: 5,712
Installed instances: 10,743

Median times in seconds
Stage	Regular	Treepool
Allocate	0.14 s	0.25 s
Install	47.99 s	7.99 s
Total	48.13 s	8.19 s

Every run · seconds
Run	Mode	Allocate	Install	Total
1	Treepool	0.253	7.891	8.145
1	Regular	0.144	48.351	48.496
2	Regular	0.145	47.864	48.012
2	Treepool	0.312	8.262	8.576
3	Treepool	0.200	7.988	8.189
3	Regular	0.138	47.743	47.882
4	Regular	0.145	48.948	49.096
4	Treepool	0.302	8.166	8.471
5	Treepool	0.202	7.821	8.024
5	Regular	0.140	47.989	48.130

Yarn v1 v1.22.22 133.3× faster · 152.17 s saved

Regular

153.32 s

Treepool

1.15 s

Breakdown & measurements 5,763 unique packages

Unique package/version pairs: 5,763
Installed instances: 10,125

Median times in seconds
Stage	Regular	Treepool
Allocate	0.14 s	0.24 s
Install	153.18 s	0.90 s
Total	153.32 s	1.15 s

Every run · seconds
Run	Mode	Allocate	Install	Total
1	Treepool	0.239	0.936	1.177
1	Regular	0.183	162.353	162.540
2	Regular	0.132	153.132	153.265
2	Treepool	0.245	0.905	1.151
3	Treepool	0.246	0.891	1.138
3	Regular	0.150	172.647	172.798
4	Regular	0.142	153.176	153.320
4	Treepool	0.254	0.923	1.178
5	Treepool	0.200	0.872	1.079
5	Regular	0.133	151.710	151.844

Yarn Berry v4.18.1 6.3× faster · 29.96 s saved

Regular

35.66 s

Treepool

5.70 s

Breakdown & measurements 5,779 unique packages

Unique package/version pairs: 5,779
Installed instances: 9,690

Median times in seconds
Stage	Regular	Treepool
Allocate	0.13 s	0.25 s
Install	35.53 s	5.45 s
Total	35.66 s	5.70 s

Every run · seconds
Run	Mode	Allocate	Install	Total
1	Regular	0.128	35.533	35.663
1	Treepool	0.250	5.450	5.702
2	Treepool	0.201	4.948	5.150
2	Regular	0.129	34.849	34.979
3	Regular	0.146	35.898	36.045
3	Treepool	0.251	5.458	5.710
4	Treepool	0.200	4.931	5.132
4	Regular	0.146	34.734	34.881
5	Regular	0.134	36.298	36.433
5	Treepool	0.261	5.476	5.739

pnpm v12.10.1 36.4× faster · 42.07 s saved

Regular

43.26 s

Treepool

1.19 s

Breakdown & measurements 5,730 unique packages

Unique package/version pairs: 5,730
Installed instances: 5,977

Median times in seconds
Stage	Regular	Treepool
Allocate	0.14 s	0.24 s
Install	43.12 s	0.95 s
Total	43.26 s	1.19 s

Every run · seconds
Run	Mode	Allocate	Install	Total
1	Regular	0.138	46.422	46.561
1	Treepool	0.253	1.123	1.377
2	Treepool	0.197	0.209	0.407
2	Regular	0.134	39.286	39.421
3	Regular	0.126	36.875	37.002
3	Treepool	0.245	1.016	1.263
4	Treepool	0.199	0.210	0.410
4	Regular	0.143	43.120	43.264
5	Regular	0.145	44.941	45.087
5	Treepool	0.238	0.950	1.189

Bun v1.3.14 12.5× faster · 11.72 s saved

Regular

12.74 s

Treepool

1.02 s

Breakdown & measurements 5,705 unique packages

Unique package/version pairs: 5,705
Installed instances: 6,050

Median times in seconds
Stage	Regular	Treepool
Allocate	0.13 s	0.24 s
Install	12.61 s	0.78 s
Total	12.74 s	1.02 s

Every run · seconds
Run	Mode	Allocate	Install	Total
1	Treepool	0.236	2.058	2.295
1	Regular	0.129	14.793	14.923
2	Regular	0.126	13.051	13.178
2	Treepool	0.258	0.774	1.034
3	Treepool	0.249	0.774	1.023
3	Regular	0.134	12.516	12.650
4	Regular	0.147	12.557	12.704
4	Treepool	0.239	0.776	1.016
5	Treepool	0.185	0.780	0.967
5	Regular	0.129	12.613	12.743

More details

Total is elapsed time from allocation through install, before verification and cleanup. Stage medians are calculated separately, so they may not add up to the total median. Speedup is regular median total ÷ Treepool median total.

Both paths use warm package caches and identical dependency inputs. Treepool also retains an installed dependency tree. Install scripts are disabled, and execution order alternates across five runs. Initial cache and slot preparation are excluded. Network access is disabled for Yarn, npm and pnpm; Bun uses its warm cache, with offline mode only when supported.

Sizes vary workspace count, dependency overlap and versions as well as direct dependencies. Unique packages means external name/version pairs; installed instances also count duplicate copies and peer variants, excluding workspace packages. These results measure this fixture and machine, with no dependency changes between tasks.

Measured 9 October 2026 · macOS-26.6.2-arm64-arm-64bit · Node v24.21.0 · twt 0.2.1. Run: 20261009T045559-61968.

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