Defer creation of barebonesLibSourceFile by jakebailey · Pull Request #58931 · microsoft/TypeScript

Jake Bailey (jakebailey) · 2024-06-19T16:48:05Z

Pulled out of #58928.

Locally, this looks like a big win for typescript.js startup:

Benchmark 1 (695 runs): node ./built/local-old/typescript.js
measurement mean ± σ min … max outliers delta
wall_time 144ms ± 1.76ms 140ms … 152ms 15 ( 2%) 0%
peak_rss 89.6MB ± 541KB 88.3MB … 94.3MB 7 ( 1%) 0%
cpu_cycles 638M ± 5.60M 629M … 675M 18 ( 3%) 0%
instructions 1.07G ± 453K 1.07G … 1.07G 2 ( 0%) 0%
cache_references 16.8M ± 362K 15.7M … 18.0M 13 ( 2%) 0%
cache_misses 2.31M ± 201K 2.06M … 3.33M 34 ( 5%) 0%
branch_misses 4.74M ± 14.8K 4.70M … 4.79M 6 ( 1%) 0%
Benchmark 2 (726 runs): node ./built/local/typescript.js
measurement mean ± σ min … max outliers delta
wall_time 138ms ± 1.86ms 134ms … 154ms 21 ( 3%) ⚡- 4.3% ± 0.1%
peak_rss 89.4MB ± 661KB 88.0MB … 95.1MB 38 ( 5%) - 0.2% ± 0.1%
cpu_cycles 607M ± 6.24M 598M … 669M 24 ( 3%) ⚡- 4.8% ± 0.1%
instructions 1.03G ± 457K 1.03G … 1.04G 3 ( 0%) ⚡- 3.4% ± 0.0%
cache_references 15.1M ± 334K 14.2M … 16.0M 16 ( 2%) ⚡- 10.1% ± 0.2%
cache_misses 2.29M ± 206K 1.99M … 3.85M 28 ( 4%) - 1.2% ± 0.9%
branch_misses 4.48M ± 14.4K 4.44M … 4.54M 18 ( 2%) ⚡- 5.5% ± 0.0%

Also, this apparently runs before services swaps out the object allocators, so it causes a decrease in monomorphism.

Co-authored-by: Titian Cernicova-Dragomir <tcernicovad1@bloomberg.net>

Jake Bailey (jakebailey) · 2024-06-19T16:48:25Z

TypeScript Bot (@typescript-bot) perf test this

TypeScript Bot (typescript-bot) · 2024-06-19T16:48:28Z

Starting jobs; this comment will be updated as builds start and complete.

Command	Status	Results
`perf test this`	✅ Started	👀 Results

TypeScript Bot (typescript-bot) · 2024-06-19T17:30:51Z

Jake Bailey (@jakebailey)
The results of the perf run you requested are in!

Here they are:

tsc

Comparison Report - baseline..pr

_Metric	_baseline	_pr	_Delta	_Best	_Worst	_p-value
_{Compiler-Unions - node (v18.15.0, x64)}
_Errors	₃₀	₃₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_62,153	_62,153	_~	_~	_~	_{p=1.000 n=6}
_Types	_50,242	_50,242	_~	_~	_~	_{p=1.000 n=6}
_{Memory used}	_{192,790k (± 0.73%)}	_{194,027k (± 0.99%)}	_~	_192,167k	_195,837k	_{p=0.066 n=6}
_{Parse Time}	_{1.57s (± 0.84%)}	_{1.58s (± 0.65%)}	_~	_1.56s	_1.59s	_{p=0.506 n=6}
_{Bind Time}	_{0.85s (± 1.21%)}	_{0.86s (± 1.14%)}	_~	_0.85s	_0.87s	_{p=0.203 n=6}
_{Check Time}	_{11.19s (± 0.40%)}	_{11.19s (± 0.39%)}	_~	_11.13s	_11.25s	_{p=0.747 n=6}
_{Emit Time}	_{3.28s (± 0.83%)}	_{3.30s (± 0.45%)}	_~	_3.27s	_3.31s	_{p=0.166 n=6}
_{Total Time}	_{16.90s (± 0.41%)}	_{16.92s (± 0.26%)}	_~	_16.88s	_16.98s	_{p=0.571 n=6}
_{angular-1 - node (v18.15.0, x64)}
_Errors	₅	₅	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_944,114	_944,114	_~	_~	_~	_{p=1.000 n=6}
_Types	_407,051	_407,051	_~	_~	_~	_{p=1.000 n=6}
_{Memory used}	_{1,218,361k (± 0.00%)}	_{1,218,295k (± 0.00%)}	_~	_1,218,238k	_1,218,351k	_{p=0.066 n=6}
_{Parse Time}	_{7.97s (± 0.53%)}	_{7.94s (± 0.69%)}	_~	_7.86s	_8.00s	_{p=0.572 n=6}
_{Bind Time}	_{2.24s (± 0.62%)}	_{2.22s (± 0.44%)}	_{-0.02s (- 0.75%)}	_2.21s	_2.23s	_{p=0.047 n=6}
_{Check Time}	_{35.67s (± 0.23%)}	_{35.70s (± 0.24%)}	_~	_35.62s	_35.82s	_{p=0.809 n=6}
_{Emit Time}	_{16.14s (± 0.50%)}	_{16.15s (± 0.30%)}	_~	_16.07s	_16.19s	_{p=0.630 n=6}
_{Total Time}	_{62.02s (± 0.27%)}	_{62.01s (± 0.08%)}	_~	_61.94s	_62.07s	_{p=0.630 n=6}
_{mui-docs - node (v18.15.0, x64)}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_2,133,539	_2,133,539	_~	_~	_~	_{p=1.000 n=6}
_Types	_926,551	_926,551	_~	_~	_~	_{p=1.000 n=6}
_{Memory used}	_{2,115,712k (± 0.00%)}	_{2,115,723k (± 0.01%)}	_~	_2,115,595k	_2,115,949k	_{p=0.936 n=6}
_{Parse Time}	_{7.87s (± 0.22%)}	_{7.86s (± 0.19%)}	_~	_7.85s	_7.88s	_{p=0.567 n=6}
_{Bind Time}	_{2.76s (± 0.55%)}	_{2.77s (± 0.55%)}	_~	_2.74s	_2.78s	_{p=0.282 n=6}
_{Check Time}	_{83.86s (± 0.38%)}	_{83.81s (± 0.36%)}	_~	_83.46s	_84.23s	_{p=0.936 n=6}
_{Emit Time}	_{0.16s (± 2.52%)}	_{0.16s (± 2.58%)}	_~	_0.15s	_0.16s	_{p=0.218 n=6}
_{Total Time}	_{94.64s (± 0.33%)}	_{94.60s (± 0.32%)}	_~	_94.25s	_95.02s	_{p=0.873 n=6}
_{self-build-src - node (v18.15.0, x64)}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_1,230,761	_1,230,762	_{+1 (+ 0.00%)}	_~	_~	_{p=0.001 n=6}
_Types	_261,189	_261,187	_{-2 (- 0.00%)}	_~	_~	_{p=0.001 n=6}
_{Memory used}	_{2,346,502k (± 0.03%)}	_{2,345,895k (± 0.03%)}	_~	_2,344,838k	_2,346,901k	_{p=0.230 n=6}
_{Parse Time}	_{5.95s (± 0.96%)}	_{5.99s (± 0.85%)}	_~	_5.92s	_6.07s	_{p=0.261 n=6}
_{Bind Time}	_{2.26s (± 0.33%)}	_{2.24s (± 0.73%)}	_~	_2.22s	_2.26s	_{p=0.165 n=6}
_{Check Time}	_{39.71s (± 0.31%)}	_{39.84s (± 0.42%)}	_~	_39.63s	_40.02s	_{p=0.230 n=6}
_{Emit Time}	_{3.10s (± 1.31%)}	_{3.20s (± 1.19%)}	_{+0.10s (+ 3.23%)}	_3.14s	_3.24s	_{p=0.008 n=6}
_{Total Time}	_{51.04s (± 0.35%)}	_{51.29s (± 0.29%)}	_{+0.25s (+ 0.48%)}	_51.04s	_51.43s	_{p=0.031 n=6}
_{self-build-src-public-api - node (v18.15.0, x64)}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_1,230,761	_1,230,762	_{+1 (+ 0.00%)}	_~	_~	_{p=0.001 n=6}
_Types	_261,189	_261,187	_{-2 (- 0.00%)}	_~	_~	_{p=0.001 n=6}
_{Memory used}	_{2,423,509k (± 0.01%)}	_{2,423,424k (± 0.02%)}	_~	_2,422,810k	_2,424,157k	_{p=0.810 n=6}
_{Parse Time}	_{7.75s (± 0.65%)}	_{7.73s (± 0.56%)}	_~	_7.68s	_7.79s	_{p=0.810 n=6}
_{Bind Time}	_{2.53s (± 0.85%)}	_{2.49s (± 1.06%)}	_{-0.05s (- 1.78%)}	_2.45s	_2.52s	_{p=0.016 n=6}
_{Check Time}	_{49.43s (± 0.19%)}	_{49.48s (± 0.18%)}	_~	_49.32s	_49.57s	_{p=0.298 n=6}
_{Emit Time}	_{3.92s (± 2.02%)}	_{3.86s (± 0.93%)}	_~	_3.81s	_3.90s	_{p=0.126 n=6}
_{Total Time}	_{63.65s (± 0.09%)}	_{63.57s (± 0.18%)}	_~	_63.38s	_63.70s	_{p=0.261 n=6}
_{self-compiler - node (v18.15.0, x64)}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_258,573	_258,573	_~	_~	_~	_{p=1.000 n=6}
_Types	_104,819	_104,819	_~	_~	_~	_{p=1.000 n=6}
_{Memory used}	_{428,198k (± 0.01%)}	_{428,173k (± 0.01%)}	_~	_428,123k	_428,250k	_{p=0.230 n=6}
_{Parse Time}	_{3.33s (± 0.96%)}	_{3.32s (± 1.35%)}	_~	_3.29s	_3.39s	_{p=0.568 n=6}
_{Bind Time}	_{1.31s (± 1.50%)}	_{1.32s (± 1.41%)}	_~	_1.30s	_1.34s	_{p=0.324 n=6}
_{Check Time}	_{17.75s (± 0.25%)}	_{17.73s (± 0.32%)}	_~	_17.64s	_17.80s	_{p=0.470 n=6}
_{Emit Time}	_{1.36s (± 0.93%)}	_{1.37s (± 1.07%)}	_~	_1.35s	_1.39s	_{p=0.392 n=6}
_{Total Time}	_{23.75s (± 0.19%)}	_{23.73s (± 0.38%)}	_~	_23.60s	_23.82s	_{p=1.000 n=6}
_{ts-pre-modules - node (v18.15.0, x64)}
_Errors	₃₅	₃₅	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_224,565	_224,565	_~	_~	_~	_{p=1.000 n=6}
_Types	_93,734	_93,734	_~	_~	_~	_{p=1.000 n=6}
_{Memory used}	_{369,477k (± 0.02%)}	_{369,415k (± 0.02%)}	_~	_369,346k	_369,541k	_{p=0.066 n=6}
_{Parse Time}	_{2.77s (± 0.97%)}	_{2.76s (± 0.87%)}	_~	_2.73s	_2.80s	_{p=0.747 n=6}
_{Bind Time}	_{1.58s (± 0.95%)}	_{1.58s (± 0.74%)}	_~	_1.57s	_1.60s	_{p=1.000 n=6}
_{Check Time}	_{15.45s (± 0.57%)}	_{15.47s (± 0.37%)}	_~	_15.38s	_15.54s	_{p=0.748 n=6}
_{Emit Time}	_0.00s	_0.00s	_~	_~	_~	_{p=1.000 n=6}
_{Total Time}	_{19.80s (± 0.45%)}	_{19.81s (± 0.34%)}	_~	_19.73s	_19.88s	_{p=1.000 n=6}
_{vscode - node (v18.15.0, x64)}
_Errors	₀	₀	_~	_~	_~	_{p=NaN n=0}
_Symbols	₀	₀	_~	_~	_~	_{p=NaN n=0}
_Types	₀	₀	_~	_~	_~	_{p=NaN n=0}
_{Memory used}	_0k	_0k	_~	_~	_~	_{p=NaN n=0}
_{Parse Time}	_0s	_0s	_~	_~	_~	_{p=NaN n=0}
_{Bind Time}	_0s	_0s	_~	_~	_~	_{p=NaN n=0}
_{Check Time}	_0s	_0s	_~	_~	_~	_{p=NaN n=0}
_{Emit Time}	_0s	_0s	_~	_~	_~	_{p=NaN n=0}
_{Total Time}	_0s	_0s	_~	_~	_~	_{p=NaN n=0}
_{webpack - node (v18.15.0, x64)}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_266,926	_266,926	_~	_~	_~	_{p=1.000 n=6}
_Types	_108,691	_108,691	_~	_~	_~	_{p=1.000 n=6}
_{Memory used}	_{411,270k (± 0.02%)}	_{411,323k (± 0.01%)}	_~	_411,269k	_411,369k	_{p=0.230 n=6}
_{Parse Time}	_{3.16s (± 0.33%)}	_{3.15s (± 0.28%)}	_~	_3.14s	_3.16s	_{p=0.273 n=6}
_{Bind Time}	_1.41s	_{1.41s (± 0.29%)}	_~	_1.41s	_1.42s	_{p=0.405 n=6}
_{Check Time}	_{14.25s (± 0.23%)}	_{14.24s (± 0.25%)}	_~	_14.19s	_14.30s	_{p=0.935 n=6}
_{Emit Time}	_0.00s	_0.00s	_~	_~	_~	_{p=1.000 n=6}
_{Total Time}	_{18.82s (± 0.17%)}	_{18.81s (± 0.20%)}	_~	_18.76s	_18.87s	_{p=0.748 n=6}
_{xstate-main - node (v18.15.0, x64)}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_523,765	_523,765	_~	_~	_~	_{p=1.000 n=6}
_Types	_178,055	_178,055	_~	_~	_~	_{p=1.000 n=6}
_{Memory used}	_{462,123k (± 0.03%)}	_{461,673k (± 0.07%)}	_{-450k (- 0.10%)}	_461,352k	_462,119k	_{p=0.045 n=6}
_{Parse Time}	_{3.16s (± 0.62%)}	_{3.16s (± 0.99%)}	_~	_3.13s	_3.21s	_{p=0.558 n=6}
_{Bind Time}	_{1.17s (± 0.44%)}	_{1.18s (± 1.03%)}	_~	_1.17s	_1.20s	_{p=0.923 n=6}
_{Check Time}	_{17.97s (± 0.53%)}	_{17.93s (± 0.25%)}	_~	_17.85s	_17.97s	_{p=0.336 n=6}
_{Emit Time}	_0.00s	_0.00s	_~	_~	_~	_{p=1.000 n=6}
_{Total Time}	_{22.31s (± 0.45%)}	_{22.27s (± 0.23%)}	_~	_22.17s	_22.32s	_{p=0.146 n=6}

System info unknown

Hosts

node (v18.15.0, x64)

Scenarios

Compiler-Unions - node (v18.15.0, x64)
angular-1 - node (v18.15.0, x64)
mui-docs - node (v18.15.0, x64)
self-build-src - node (v18.15.0, x64)
self-build-src-public-api - node (v18.15.0, x64)
self-compiler - node (v18.15.0, x64)
ts-pre-modules - node (v18.15.0, x64)
vscode - node (v18.15.0, x64)
webpack - node (v18.15.0, x64)
xstate-main - node (v18.15.0, x64)

_Benchmark	_Name	_Iterations
_Current	_pr	₆
_Baseline	_baseline	₆

tsserver

Comparison Report - baseline..pr

_Metric	_baseline	_pr	_Delta	_Best	_Worst	_p-value
_{Compiler-UnionsTSServer - node (v18.15.0, x64)}
_{Req 1 - updateOpen}	_{2,277ms (± 0.43%)}	_{2,296ms (± 0.60%)}	_~	_2,279ms	_2,310ms	_{p=0.065 n=6}
_{Req 2 - geterr}	_{5,081ms (± 0.61%)}	_{5,080ms (± 0.30%)}	_~	_5,065ms	_5,101ms	_{p=0.810 n=6}
_{Req 3 - references}	_{265ms (± 0.40%)}	_{264ms (± 0.41%)}	_~	_262ms	_265ms	_{p=0.554 n=6}
_{Req 4 - navto}	_{228ms (± 0.18%)}	_{227ms (± 1.40%)}	_~	_223ms	_231ms	_{p=0.445 n=6}
_{Req 5 - completionInfo count}	_1,357	_1,357	_~	_~	_~	_{p=1.000 n=6}
_{Req 5 - completionInfo}	_{88ms (± 0.58%)}	_{89ms (± 7.13%)}	_~	_77ms	_94ms	_{p=0.276 n=6}
_{CompilerTSServer - node (v18.15.0, x64)}
_{Req 1 - updateOpen}	_{2,393ms (± 0.49%)}	_{2,418ms (± 1.14%)}	_~	_2,369ms	_2,450ms	_{p=0.093 n=6}
_{Req 2 - geterr}	_{3,787ms (± 0.16%)}	_{3,795ms (± 0.24%)}	_~	_3,783ms	_3,807ms	_{p=0.172 n=6}
_{Req 3 - references}	_{276ms (± 0.30%)}	_{277ms (± 0.32%)}	_{+2ms (+ 0.54%)}	_276ms	_278ms	_{p=0.021 n=6}
_{Req 4 - navto}	_{226ms (± 0.23%)}	_{226ms (± 0.33%)}	_~	_225ms	_227ms	_{p=0.784 n=6}
_{Req 5 - completionInfo count}	_1,519	_1,519	_~	_~	_~	_{p=1.000 n=6}
_{Req 5 - completionInfo}	_{69ms (± 0.75%)}	_{73ms (± 1.11%)}	_{🔻+5ms (+ 6.80%)}	_72ms	_74ms	_{p=0.004 n=6}
_{xstate-main-1-tsserver - node (v18.15.0, x64)}
_{Req 1 - updateOpen}	_{5,192ms (± 0.73%)}	_{5,197ms (± 0.86%)}	_~	_5,168ms	_5,287ms	_{p=0.936 n=6}
_{Req 2 - geterr}	_{1,121ms (± 0.35%)}	_{1,127ms (± 1.87%)}	_~	_1,111ms	_1,168ms	_{p=0.936 n=6}
_{Req 3 - references}	_76ms	_{77ms (± 3.28%)}	_~	_75ms	_82ms	_{p=0.599 n=6}
_{Req 4 - navto}	_{450ms (± 0.70%)}	_{455ms (± 0.72%)}	_{+5ms (+ 1.00%)}	_448ms	_457ms	_{p=0.036 n=6}
_{Req 5 - completionInfo count}	_3,413	_3,413	_~	_~	_~	_{p=1.000 n=6}
_{Req 5 - completionInfo}	_{828ms (± 2.25%)}	_{837ms (± 1.61%)}	_~	_816ms	_856ms	_{p=0.470 n=6}

System info unknown

Hosts

node (v18.15.0, x64)

Scenarios

CompilerTSServer - node (v18.15.0, x64)
Compiler-UnionsTSServer - node (v18.15.0, x64)
xstate-main-1-tsserver - node (v18.15.0, x64)

_Benchmark	_Name	_Iterations
_Current	_pr	₆
_Baseline	_baseline	₆

startup

Comparison Report - baseline..pr

_Metric	_baseline	_pr	_Delta	_Best	_Worst	_p-value
_{tsc-startup - node (v18.15.0, x64)}
_{Execution time}	_{157.02ms (± 0.17%)}	_{156.97ms (± 0.19%)}	_{-0.05ms (- 0.03%)}	_156.03ms	_162.11ms	_{p=0.004 n=600}
_{tsserver-startup - node (v18.15.0, x64)}
_{Execution time}	_{241.66ms (± 0.15%)}	_{232.55ms (± 0.14%)}	_{🟩-9.11ms (- 3.77%)}	_231.22ms	_237.16ms	_{p=0.000 n=600}
_{tsserverlibrary-startup - node (v18.15.0, x64)}
_{Execution time}	_{236.71ms (± 0.13%)}	_{227.62ms (± 0.14%)}	_{🟩-9.08ms (- 3.84%)}	_226.05ms	_231.44ms	_{p=0.000 n=600}
_{typescript-startup - node (v18.15.0, x64)}
_{Execution time}	_{236.43ms (± 0.14%)}	_{227.29ms (± 0.15%)}	_{🟩-9.14ms (- 3.86%)}	_225.50ms	_232.15ms	_{p=0.000 n=600}

System info unknown

Hosts

node (v18.15.0, x64)

Scenarios

tsc-startup - node (v18.15.0, x64)
tsserver-startup - node (v18.15.0, x64)
tsserverlibrary-startup - node (v18.15.0, x64)
typescript-startup - node (v18.15.0, x64)

_Benchmark	_Name	_Iterations
_Current	_pr	₆
_Baseline	_baseline	₆

Developer Information:

Download Benchmarks

Jake Bailey (jakebailey) · 2024-06-19T17:34:45Z

Yeah that's 4% startup time.

Daniel Rosenwasser (DanielRosenwasser) · 2024-06-19T18:18:49Z

TypeScript Bot (@typescript-bot) cherry-pick this to release-5.5

TypeScript Bot (typescript-bot) · 2024-06-19T18:18:53Z

Starting jobs; this comment will be updated as builds start and complete.

Command	Status	Results
`cherry-pick this to release-5.5`	✅ Started	✅ Results

TypeScript Bot (typescript-bot) · 2024-06-19T18:21:18Z

Hey, Daniel Rosenwasser (@DanielRosenwasser)! I've created #58933 for you.

…e-5.5 (#58933) Co-authored-by: Jake Bailey <5341706+jakebailey@users.noreply.github.com>

Defer creation of barebonesLibSourceFile
8dfa912
Co-authored-by: Titian Cernicova-Dragomir <tcernicovad1@bloomberg.net>

Jake Bailey (jakebailey) requested review from Daniel Rosenwasser (DanielRosenwasser) and Wesley Wigham (weswigham)June 19, 2024 16:48

TypeScript Bot (typescript-bot) assigned Jake Bailey (jakebailey)Jun 19, 2024

TypeScript Bot (typescript-bot) added Author: Team For Uncommitted Bug PR for untriaged, rejected, closed or missing bug labels Jun 19, 2024

Jake Bailey (jakebailey) mentioned this pull request Jun 19, 2024
Experiment - monomorphic node/type/signature #58928
Closed

Daniel Rosenwasser (DanielRosenwasser) approved these changes Jun 19, 2024
View reviewed changes

TypeScript Bot (typescript-bot) mentioned this pull request Jun 19, 2024
🤖 Pick PR #58931 (Defer creation of barebonesLibSourc...) into release-5.5 #58933
Merged

Wesley Wigham (weswigham) approved these changes Jun 19, 2024
View reviewed changes

Jake Bailey (jakebailey) merged commit 47bb090 into microsoft:mainJun 19, 2024

Jake Bailey (jakebailey) deleted the defer-barebones-lib branch June 19, 2024 18:34

Daniel Rosenwasser (DanielRosenwasser) pushed a commit that referenced this pull request Jun 19, 2024
🤖 Pick PR#58931(Defer creation of barebonesLibSourc...) into releas…
f3b21a2
…e-5.5 (#58933) Co-authored-by: Jake Bailey <5341706+jakebailey@users.noreply.github.com>

Nathan Shively-Sanders (sandersn) removed this from PR Backlog Apr 22, 2025

Microsoft (microsoft) locked as resolved and limited conversation to collaborators Oct 16, 2025

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Defer creation of barebonesLibSourceFile - #58931

Defer creation of barebonesLibSourceFile#58931
Jake Bailey (jakebailey) merged 1 commit into
microsoft:mainfrom
jakebailey:defer-barebones-lib

Jake Bailey (jakebailey) commented Jun 19, 2024•
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Jake Bailey (jakebailey) commented Jun 19, 2024

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