Limit loader/emitter to GOMAXPROCS by jakebailey · Pull Request #3369 · microsoft/typescript-go

jakebailey · 2026-04-08T21:55:45Z

Could fix #3139?

We don't benefit much from massive parallelism in these stages. Yes, we can do parsing while waiting for resolver IO, or do some emitting while waiting for checker locks, but I think might not be worth it.

This doesn't actually limit the number of spawned goroutines or their stack space; that's possible but would mean that stack traces lose context due to not using the go keyword directly, which I feel is not so good.

jakebailey · 2026-04-08T21:56:10Z

@typescript-bot perf test this faster

typescript-bot · 2026-04-08T21:56:14Z

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

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

typescript-bot · 2026-04-08T22:19:34Z

@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 - native}
_Errors	₄	₄	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_{81,811 (± 0.01%)}	_{81,828 (± 0.01%)}	_{+17 (+ 0.02%)}	_81,813	_81,839	_{p=0.020 n=6}
_Types	_98,821	_98,821	_~	_~	_~	_{p=1.000 n=6}
_{Memory Used}	_{174,875k (± 0.06%)}	_{174,799k (± 0.05%)}	_~	_174,730k	_174,983k	_{p=0.471 n=6}
_{Memory Allocs}	_{1,771,575 (± 0.02%)}	_{1,770,492 (± 0.01%)}	_{-1,083 (- 0.06%)}	_1,770,318	_1,770,664	_{p=0.005 n=6}
_{Config Time}	_{0.000s (±244.70%)}	_0.000s	_~	_~	_~	_{p=0.405 n=6}
_{Parse Time}	_{0.064s (± 6.49%)}	_{0.064s (± 9.19%)}	_~	_0.056s	_0.073s	_{p=0.748 n=6}
_{Bind Time}	_0s	_0s	_~	_~	_~	_{p=1.000 n=6}
_{Check Time}	_0s	_0s	_~	_~	_~	_{p=1.000 n=6}
_{Emit Time}	_{0.851s (± 1.10%)}	_{0.852s (± 1.14%)}	_~	_0.837s	_0.863s	_{p=0.936 n=6}
_{Total Time}	_{0.915s (± 0.75%)}	_{0.916s (± 1.47%)}	_~	_0.902s	_0.935s	_{p=0.936 n=6}
_{angular-1 - native}
_Errors	₂	₂	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_{884,880 (± 0.08%)}	_{879,127 (± 0.13%)}	_{-5,754 (- 0.65%)}	_877,283	_880,241	_{p=0.005 n=6}
_Types	_{263,844 (± 0.00%)}	_{263,846 (± 0.00%)}	_{+2 (+ 0.00%)}	_263,845	_263,848	_{p=0.008 n=6}
_{Memory Used}	_{836,073k (± 0.12%)}	_{889,256k (± 0.07%)}	_{🔻+53,183k (+ 6.36%)}	_888,485k	_890,182k	_{p=0.005 n=6}
_{Memory Allocs}	_{6,726,449 (± 0.58%)}	_{6,642,084 (± 0.08%)}	_{-84,365 (- 1.25%)}	_6,634,473	_6,648,314	_{p=0.005 n=6}
_{Config Time}	_{0.032s (±22.69%)}	_{0.028s (± 3.91%)}	_~	_0.027s	_0.030s	_{p=0.406 n=6}
_{Parse Time}	_{0.250s (± 4.46%)}	_{0.260s (± 4.09%)}	_~	_0.244s	_0.276s	_{p=0.092 n=6}
_{Bind Time}	_0s	_0s	_~	_~	_~	_{p=1.000 n=6}
_{Check Time}	_0s	_0s	_~	_~	_~	_{p=1.000 n=6}
_{Emit Time}	_{1.903s (± 1.57%)}	_{1.867s (± 1.34%)}	_{-0.037s (- 1.92%)}	_1.840s	_1.907s	_{p=0.045 n=6}
_{Total Time}	_{2.187s (± 1.59%)}	_{2.156s (± 0.84%)}	_~	_2.138s	_2.190s	_{p=0.173 n=6}
_{mui-docs - native}
_Errors	₃	₃	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_4,249,897	_4,249,897	_~	_~	_~	_{p=1.000 n=6}
_Types	_1,531,915	_1,531,915	_~	_~	_~	_{p=1.000 n=6}
_{Memory Used}	_{5,402,322k (± 0.05%)}	_{5,402,596k (± 0.02%)}	_~	_5,401,199k	_5,404,895k	_{p=0.810 n=6}
_{Memory Allocs}	_{98,721,943 (±21.65%)}	_{57,673,950 (± 1.17%)}	_{🟩-41,047,993 (-41.58%)}	_56,821,093	_58,531,428	_{p=0.005 n=6}
_{Config Time}	_{0.023s (± 6.02%)}	_{0.023s (± 6.45%)}	_~	_0.022s	_0.026s	_{p=0.455 n=6}
_{Parse Time}	_{1.065s (±27.47%)}	_{0.545s (± 2.76%)}	_{🟩-0.521s (-48.88%)}	_0.523s	_0.563s	_{p=0.005 n=6}
_{Bind Time}	_{0.002s (±34.96%)}	_{0.003s (±81.57%)}	_~	_0.002s	_0.008s	_{p=1.000 n=6}
_{Check Time}	_{16.887s (± 0.72%)}	_{16.803s (± 0.43%)}	_~	_16.749s	_16.923s	_{p=0.128 n=6}
_{Emit Time}	_{0.439s (± 4.01%)}	_{0.507s (±29.32%)}	_~	_0.424s	_0.809s	_{p=0.423 n=6}
_{Total Time}	_{18.857s (± 1.38%)}	_{18.390s (± 0.74%)}	_{-0.467s (- 2.48%)}	_18.277s	_18.625s	_{p=0.008 n=6}
_{self-build-src - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_1,396,619	_1,396,619	_~	_~	_~	_{p=1.000 n=6}
_Types	_442,163	_442,163	_~	_~	_~	_{p=1.000 n=6}
_{Memory Used}	_{1,634,387k (± 0.28%)}	_{1,634,150k (± 0.23%)}	_~	_1,627,893k	_1,638,701k	_{p=0.810 n=6}
_{Memory Allocs}	_{57,264,226 (± 0.06%)}	_{57,250,148 (± 0.06%)}	_~	_57,211,870	_57,308,695	_{p=0.575 n=6}
_{Config Time}	_{0.015s (±34.48%)}	_{0.015s (±45.75%)}	_~	_0.007s	_0.023s	_{p=0.936 n=6}
_{Parse Time}	_{0.258s (± 2.50%)}	_{0.262s (± 4.77%)}	_~	_0.250s	_0.282s	_{p=0.688 n=6}
_{Bind Time}	_{0.000s (±244.70%)}	_0.000s	_~	_~	_~	_{p=0.405 n=6}
_{Check Time}	_{2.302s (± 0.96%)}	_{2.315s (± 0.37%)}	_~	_2.307s	_2.329s	_{p=0.230 n=6}
_{Emit Time}	_{0.225s (± 2.58%)}	_{0.218s (± 2.54%)}	_~	_0.211s	_0.224s	_{p=0.065 n=6}
_{Total Time}	_{29.358s (± 0.85%)}	_{29.439s (± 0.44%)}	_~	_29.267s	_29.573s	_{p=0.575 n=6}
_{self-compiler - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_338,176	_338,176	_~	_~	_~	_{p=1.000 n=6}
_Types	_199,525	_199,525	_~	_~	_~	_{p=1.000 n=6}
_{Memory Used}	_{330,547k (± 0.03%)}	_{330,532k (± 0.03%)}	_~	_330,360k	_330,637k	_{p=0.689 n=6}
_{Memory Allocs}	_{2,551,576 (± 0.03%)}	_{2,550,769 (± 0.03%)}	_~	_2,549,739	_2,551,620	_{p=0.093 n=6}
_{Config Time}	_0.001s	_{0.001s (±34.96%)}	_~	_0.001s	_0.002s	_{p=0.405 n=6}
_{Parse Time}	_{0.130s (± 2.90%)}	_{0.131s (± 3.35%)}	_~	_0.126s	_0.138s	_{p=0.935 n=6}
_{Bind Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=6}
_{Check Time}	_{1.388s (± 0.41%)}	_{1.390s (± 0.47%)}	_~	_1.381s	_1.400s	_{p=0.810 n=6}
_{Emit Time}	_{0.080s (± 3.15%)}	_{0.080s (± 5.33%)}	_~	_0.077s	_0.088s	_{p=0.677 n=6}
_{Total Time}	_{1.655s (± 0.22%)}	_{1.656s (± 0.37%)}	_~	_1.649s	_1.665s	_{p=0.809 n=6}
_{ts-pre-modules - native}
_Errors	₃	₃	_~	_~	_~	_{p=1.000 n=6}
_Symbols	₇₅₂	₇₅₂	_~	_~	_~	_{p=1.000 n=6}
_Types	₃₅₆	₃₅₆	_~	_~	_~	_{p=1.000 n=6}
_{Memory Used}	_{103,321k (± 0.02%)}	_{103,282k (± 0.02%)}	_{-39k (- 0.04%)}	_103,242k	_103,313k	_{p=0.045 n=6}
_{Memory Allocs}	_{110,684 (± 0.30%)}	_{110,541 (± 0.19%)}	_~	_110,261	_110,838	_{p=0.471 n=6}
_{Config Time}	_{0.001s (±109.43%)}	_0.001s	_~	_~	_~	_{p=0.071 n=6}
_{Parse Time}	_{0.115s (± 3.22%)}	_{0.120s (± 6.39%)}	_~	_0.111s	_0.130s	_{p=0.261 n=6}
_{Bind Time}	_0s	_0s	_~	_~	_~	_{p=1.000 n=6}
_{Check Time}	_0s	_0s	_~	_~	_~	_{p=1.000 n=6}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=6}
_{Total Time}	_{0.116s (± 3.61%)}	_{0.121s (± 6.34%)}	_~	_0.112s	_0.131s	_{p=0.228 n=6}
_{vscode - native}
_Errors	₁₉₃	₁₉₃	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_6,053,025	_6,053,025	_~	_~	_~	_{p=1.000 n=6}
_Types	_2,291,057	_2,291,057	_~	_~	_~	_{p=1.000 n=6}
_{Memory Used}	_{4,113,921k (± 0.06%)}	_{4,198,409k (± 0.17%)}	_{+84,488k (+ 2.05%)}	_4,191,347k	_4,209,892k	_{p=0.005 n=6}
_{Memory Allocs}	_{29,907,289 (± 0.07%)}	_{29,752,569 (± 0.01%)}	_{-154,720 (- 0.52%)}	_29,750,371	_29,756,819	_{p=0.005 n=6}
_{Config Time}	_{0.122s (± 5.78%)}	_{0.126s (± 9.61%)}	_~	_0.104s	_0.141s	_{p=0.520 n=6}
_{Parse Time}	_{0.713s (± 1.09%)}	_{0.838s (± 4.88%)}	_{🔻+0.124s (+17.40%)}	_0.783s	_0.881s	_{p=0.005 n=6}
_{Bind Time}	_{0.109s (± 2.75%)}	_{0.151s (±46.07%)}	_~	_0.098s	_0.271s	_{p=0.170 n=6}
_{Check Time}	_{8.064s (± 0.76%)}	_{8.030s (± 0.67%)}	_~	_7.956s	_8.094s	_{p=0.471 n=6}
_{Emit Time}	_{2.011s (± 8.85%)}	_{2.046s (± 7.42%)}	_~	_1.847s	_2.167s	_{p=0.229 n=6}
_{Total Time}	_{11.041s (± 1.20%)}	_{11.214s (± 0.95%)}	_{+0.173s (+ 1.56%)}	_11.026s	_11.291s	_{p=0.045 n=6}
_{webpack - native}
_Errors	_1,146	_1,146	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_699,634	_699,634	_~	_~	_~	_{p=1.000 n=6}
_Types	_334,753	_334,753	_~	_~	_~	_{p=1.000 n=6}
_{Memory Used}	_{550,502k (± 0.03%)}	_{552,206k (± 0.01%)}	_{+1,703k (+ 0.31%)}	_552,128k	_552,337k	_{p=0.005 n=6}
_{Memory Allocs}	_{4,226,271 (± 0.30%)}	_{4,224,021 (± 0.05%)}	_~	_4,221,147	_4,226,608	_{p=0.810 n=6}
_{Config Time}	_{0.014s (±21.89%)}	_{0.013s (±26.70%)}	_~	_0.010s	_0.017s	_{p=0.223 n=6}
_{Parse Time}	_{0.141s (± 5.16%)}	_{0.158s (± 6.22%)}	_{🔻+0.018s (+12.57%)}	_0.148s	_0.172s	_{p=0.010 n=6}
_{Bind Time}	_{0.031s (±35.54%)}	_{0.038s (±31.13%)}	_~	_0.023s	_0.052s	_{p=0.686 n=6}
_{Check Time}	_{1.153s (± 1.46%)}	_{1.159s (± 0.96%)}	_~	_1.145s	_1.175s	_{p=0.423 n=6}
_{Emit Time}	_0.001s	_0.002s	_{🔻+0.001s (+100.00%)}	_~	_~	_{p=0.001 n=6}
_{Total Time}	_{1.359s (± 1.15%)}	_{1.390s (± 0.66%)}	_{+0.032s (+ 2.34%)}	_1.376s	_1.402s	_{p=0.005 n=6}
_{xstate-main - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_991,165	_991,165	_~	_~	_~	_{p=1.000 n=6}
_Types	_350,724	_350,724	_~	_~	_~	_{p=1.000 n=6}
_{Memory Used}	_{599,899k (± 0.01%)}	_{600,042k (± 0.02%)}	_{+144k (+ 0.02%)}	_599,957k	_600,212k	_{p=0.020 n=6}
_{Memory Allocs}	_{4,946,241 (± 0.12%)}	_{4,945,390 (± 0.08%)}	_~	_4,941,580	_4,951,106	_{p=0.575 n=6}
_{Config Time}	_{0.007s (±24.01%)}	_{0.006s (±31.87%)}	_~	_0.004s	_0.009s	_{p=0.611 n=6}
_{Parse Time}	_{0.137s (± 7.95%)}	_{0.137s (± 1.82%)}	_~	_0.134s	_0.141s	_{p=0.688 n=6}
_{Bind Time}	_{0.028s (± 8.52%)}	_{0.040s (±21.11%)}	_~	_0.023s	_0.046s	_{p=0.065 n=6}
_{Check Time}	_{1.139s (± 0.55%)}	_{1.133s (± 1.67%)}	_~	_1.106s	_1.163s	_{p=0.230 n=6}
_{Emit Time}	_0.001s	_0.001s	_~	_~	_~	_{p=1.000 n=6}
_{Total Time}	_{1.315s (± 1.02%)}	_{1.320s (± 1.03%)}	_~	_1.300s	_1.337s	_{p=0.471 n=6}

System info unknown

Hosts

native

Scenarios

Compiler-Unions - native
angular-1 - native
mui-docs - native
self-build-src - native
self-compiler - native
ts-pre-modules - native
vscode - native
webpack - native
xstate-main - native

_Benchmark	_Name	_Iterations
_Current	_pr	₆
_Baseline	_baseline	₆

Developer Information:

Download Benchmarks

jakebailey · 2026-04-08T22:21:47Z

Hmmmmm I'm suspicious

@typescript-bot perf test this

typescript-bot · 2026-04-08T22:21:51Z

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

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

typescript-bot · 2026-04-08T22:45:52Z

@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 - native}
_Errors	₄	₄	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_{81,815 (± 0.02%)}	_{81,794 (± 0.05%)}	_~	_81,717	_81,809	_{p=0.213 n=6}
_Types	_98,821	_98,821	_~	_~	_~	_{p=1.000 n=6}
_{Memory Used}	_{175,004k (± 0.08%)}	_{175,006k (± 0.06%)}	_~	_174,896k	_175,146k	_{p=0.689 n=6}
_{Memory Allocs}	_{1,771,728 (± 0.01%)}	_{1,771,445 (± 0.01%)}	_{-284 (- 0.02%)}	_1,771,250	_1,771,698	_{p=0.031 n=6}
_{Config Time}	_{0.000s (±244.70%)}	_0.000s	_~	_~	_~	_{p=0.405 n=6}
_{Parse Time}	_{0.063s (± 6.89%)}	_{0.066s (± 4.16%)}	_~	_0.062s	_0.070s	_{p=0.334 n=6}
_{Bind Time}	_0s	_0s	_~	_~	_~	_{p=1.000 n=6}
_{Check Time}	_0s	_0s	_~	_~	_~	_{p=1.000 n=6}
_{Emit Time}	_{0.995s (± 1.76%)}	_{1.004s (± 0.71%)}	_~	_0.995s	_1.013s	_{p=0.230 n=6}
_{Total Time}	_{1.059s (± 1.30%)}	_{1.070s (± 0.78%)}	_~	_1.058s	_1.079s	_{p=0.128 n=6}
_{angular-1 - native}
_Errors	₂	₂	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_{885,127 (± 0.11%)}	_{879,256 (± 0.13%)}	_{-5,871 (- 0.66%)}	_877,821	_880,777	_{p=0.005 n=6}
_Types	_{263,843 (± 0.00%)}	_{263,845 (± 0.00%)}	_{+2 (+ 0.00%)}	_263,844	_263,847	_{p=0.011 n=6}
_{Memory Used}	_{835,879k (± 0.04%)}	_{890,579k (± 0.04%)}	_{🔻+54,700k (+ 6.54%)}	_890,043k	_891,055k	_{p=0.005 n=6}
_{Memory Allocs}	_{6,734,457 (± 0.27%)}	_{6,644,587 (± 0.04%)}	_{-89,870 (- 1.33%)}	_6,641,077	_6,649,067	_{p=0.005 n=6}
_{Config Time}	_{0.040s (± 5.48%)}	_{0.041s (±11.32%)}	_~	_0.037s	_0.050s	_{p=0.935 n=6}
_{Parse Time}	_{0.254s (± 4.09%)}	_{0.277s (± 3.93%)}	_{🔻+0.024s (+ 9.32%)}	_0.258s	_0.289s	_{p=0.013 n=6}
_{Bind Time}	_0s	_0s	_~	_~	_~	_{p=1.000 n=6}
_{Check Time}	_0s	_0s	_~	_~	_~	_{p=1.000 n=6}
_{Emit Time}	_{2.065s (± 0.97%)}	_{2.100s (± 0.94%)}	_{+0.035s (+ 1.71%)}	_2.069s	_2.116s	_{p=0.020 n=6}
_{Total Time}	_{2.360s (± 0.73%)}	_{2.421s (± 1.00%)}	_{+0.060s (+ 2.56%)}	_2.379s	_2.440s	_{p=0.008 n=6}
_{mui-docs - native}
_Errors	₃	₃	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_4,249,897	_4,249,897	_~	_~	_~	_{p=1.000 n=6}
_Types	_1,531,915	_1,531,915	_~	_~	_~	_{p=1.000 n=6}
_{Memory Used}	_{5,398,428k (± 0.01%)}	_{5,402,156k (± 0.06%)}	_{+3,728k (+ 0.07%)}	_5,398,386k	_5,407,903k	_{p=0.031 n=6}
_{Memory Allocs}	_{91,602,286 (±10.99%)}	_{58,901,030 (± 1.41%)}	_{🟩-32,701,256 (-35.70%)}	_57,818,733	_60,060,860	_{p=0.005 n=6}
_{Config Time}	_{0.033s (±14.18%)}	_{0.035s (±18.18%)}	_~	_0.027s	_0.041s	_{p=0.572 n=6}
_{Parse Time}	_{1.007s (±12.30%)}	_{0.601s (± 3.14%)}	_{🟩-0.406s (-40.33%)}	_0.582s	_0.637s	_{p=0.005 n=6}
_{Bind Time}	_0.002s	_{0.003s (±26.54%)}	_{🔻+0.001s (+41.67%)}	_0.002s	_0.004s	_{p=0.027 n=6}
_{Check Time}	_{19.452s (± 0.52%)}	_{19.545s (± 0.34%)}	_~	_19.455s	_19.639s	_{p=0.173 n=6}
_{Emit Time}	_{0.533s (± 4.89%)}	_{0.584s (±24.27%)}	_~	_0.505s	_0.869s	_{p=0.747 n=6}
_{Total Time}	_{21.394s (± 0.99%)}	_{21.370s (± 0.96%)}	_~	_21.160s	_21.702s	_{p=0.936 n=6}
_{self-build-src - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_1,396,619	_1,396,619	_~	_~	_~	_{p=1.000 n=6}
_Types	_442,163	_442,163	_~	_~	_~	_{p=1.000 n=6}
_{Memory Used}	_{1,636,488k (± 0.14%)}	_{1,638,203k (± 0.26%)}	_~	_1,632,389k	_1,643,562k	_{p=0.689 n=6}
_{Memory Allocs}	_{57,269,029 (± 0.08%)}	_{57,315,873 (± 0.08%)}	_~	_57,261,437	_57,370,294	_{p=0.128 n=6}
_{Config Time}	_{0.025s (± 6.61%)}	_{0.022s (±17.17%)}	_~	_0.017s	_0.028s	_{p=0.108 n=6}
_{Parse Time}	_{0.272s (± 2.25%)}	_{0.262s (± 2.44%)}	_{🟩-0.010s (- 3.49%)}	_0.252s	_0.270s	_{p=0.045 n=6}
_{Bind Time}	_0.000s	_{0.000s (±244.70%)}	_~	_0.000s	_0.001s	_{p=0.405 n=6}
_{Check Time}	_{2.693s (± 0.98%)}	_{2.679s (± 0.85%)}	_~	_2.648s	_2.716s	_{p=0.378 n=6}
_{Emit Time}	_{0.259s (± 4.22%)}	_{0.266s (± 4.80%)}	_~	_0.247s	_0.280s	_{p=0.298 n=6}
_{Total Time}	_{33.728s (± 1.17%)}	_{33.541s (± 0.79%)}	_~	_33.220s	_33.968s	_{p=0.575 n=6}
_{self-compiler - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_338,176	_338,176	_~	_~	_~	_{p=1.000 n=6}
_Types	_199,525	_199,525	_~	_~	_~	_{p=1.000 n=6}
_{Memory Used}	_{330,607k (± 0.03%)}	_{330,568k (± 0.06%)}	_~	_330,356k	_330,782k	_{p=0.689 n=6}
_{Memory Allocs}	_{2,551,933 (± 0.02%)}	_{2,551,353 (± 0.03%)}	_~	_2,550,381	_2,552,803	_{p=0.298 n=6}
_{Config Time}	_0.001s	_0.001s	_~	_~	_~	_{p=1.000 n=6}
_{Parse Time}	_{0.132s (± 2.42%)}	_{0.130s (± 3.78%)}	_~	_0.122s	_0.136s	_{p=0.627 n=6}
_{Bind Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=6}
_{Check Time}	_{1.383s (± 1.48%)}	_{1.390s (± 1.26%)}	_~	_1.362s	_1.411s	_{p=0.521 n=6}
_{Emit Time}	_{0.081s (± 7.39%)}	_{0.080s (± 9.67%)}	_~	_0.075s	_0.095s	_{p=1.000 n=6}
_{Total Time}	_{1.648s (± 0.96%)}	_{1.652s (± 0.89%)}	_~	_1.629s	_1.669s	_{p=0.630 n=6}
_{ts-pre-modules - native}
_Errors	₃	₃	_~	_~	_~	_{p=1.000 n=6}
_Symbols	₇₅₂	₇₅₂	_~	_~	_~	_{p=1.000 n=6}
_Types	₃₅₆	₃₅₆	_~	_~	_~	_{p=1.000 n=6}
_{Memory Used}	_{103,299k (± 0.02%)}	_{103,288k (± 0.03%)}	_~	_103,232k	_103,323k	_{p=0.628 n=6}
_{Memory Allocs}	_{110,955 (± 0.20%)}	_{110,746 (± 0.39%)}	_~	_110,144	_111,330	_{p=0.575 n=6}
_{Config Time}	_{0.001s (±48.94%)}	_{0.001s (±77.38%)}	_~	_0.000s	_0.001s	_{p=0.595 n=6}
_{Parse Time}	_{0.115s (± 5.12%)}	_{0.120s (± 4.59%)}	_~	_0.113s	_0.128s	_{p=0.170 n=6}
_{Bind Time}	_0s	_0s	_~	_~	_~	_{p=1.000 n=6}
_{Check Time}	_0s	_0s	_~	_~	_~	_{p=1.000 n=6}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=6}
_{Total Time}	_{0.117s (± 4.95%)}	_{0.121s (± 4.65%)}	_~	_0.114s	_0.129s	_{p=0.171 n=6}
_{vscode - native}
_Errors	₁₉₃	₁₉₃	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_6,047,557	_6,047,557	_~	_~	_~	_{p=1.000 n=6}
_Types	_2,288,711	_2,288,711	_~	_~	_~	_{p=1.000 n=6}
_{Memory Used}	_{4,109,839k (± 0.02%)}	_{4,198,386k (± 0.15%)}	_{+88,547k (+ 2.15%)}	_4,190,604k	_4,208,514k	_{p=0.005 n=6}
_{Memory Allocs}	_{29,872,721 (± 0.07%)}	_{29,725,256 (± 0.03%)}	_{-147,465 (- 0.49%)}	_29,708,464	_29,730,694	_{p=0.005 n=6}
_{Config Time}	_{0.119s (± 9.70%)}	_{0.125s (± 6.43%)}	_~	_0.120s	_0.141s	_{p=0.374 n=6}
_{Parse Time}	_{0.690s (± 3.78%)}	_{0.845s (± 3.19%)}	_{🔻+0.155s (+22.51%)}	_0.811s	_0.872s	_{p=0.005 n=6}
_{Bind Time}	_{0.133s (±32.77%)}	_{0.108s (± 4.72%)}	_~	_0.100s	_0.114s	_{p=0.630 n=6}
_{Check Time}	_{8.101s (± 0.96%)}	_{8.060s (± 0.25%)}	_~	_8.040s	_8.090s	_{p=0.575 n=6}
_{Emit Time}	_{1.826s (±11.27%)}	_{2.128s (± 0.48%)}	_{🔻+0.302s (+16.54%)}	_2.112s	_2.137s	_{p=0.005 n=6}
_{Total Time}	_{10.893s (± 1.13%)}	_{11.288s (± 0.24%)}	_{+0.395s (+ 3.63%)}	_11.245s	_11.309s	_{p=0.005 n=6}
_{webpack - native}
_Errors	_1,146	_1,146	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_699,634	_699,634	_~	_~	_~	_{p=1.000 n=6}
_Types	_334,753	_334,753	_~	_~	_~	_{p=1.000 n=6}
_{Memory Used}	_{550,374k (± 0.03%)}	_{552,185k (± 0.02%)}	_{+1,812k (+ 0.33%)}	_552,012k	_552,364k	_{p=0.005 n=6}
_{Memory Allocs}	_{4,225,043 (± 0.24%)}	_{4,223,363 (± 0.03%)}	_~	_4,221,298	_4,224,965	_{p=0.378 n=6}
_{Config Time}	_{0.012s (±22.29%)}	_{0.013s (±19.44%)}	_~	_0.010s	_0.016s	_{p=0.461 n=6}
_{Parse Time}	_{0.143s (± 3.00%)}	_{0.157s (± 4.40%)}	_{🔻+0.014s (+ 9.67%)}	_0.146s	_0.165s	_{p=0.010 n=6}
_{Bind Time}	_{0.025s (±12.98%)}	_{0.036s (±28.76%)}	_{🔻+0.011s (+44.59%)}	_0.024s	_0.049s	_{p=0.034 n=6}
_{Check Time}	_{1.157s (± 0.89%)}	_{1.147s (± 0.87%)}	_~	_1.136s	_1.162s	_{p=0.128 n=6}
_{Emit Time}	_{0.001s (±34.96%)}	_0.002s	_{🔻+0.001s (+71.43%)}	_~	_~	_{p=0.007 n=6}
_{Total Time}	_{1.358s (± 1.15%)}	_{1.377s (± 0.50%)}	_{+0.019s (+ 1.40%)}	_1.367s	_1.384s	_{p=0.030 n=6}
_{xstate-main - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_991,165	_991,165	_~	_~	_~	_{p=1.000 n=6}
_Types	_350,724	_350,724	_~	_~	_~	_{p=1.000 n=6}
_{Memory Used}	_{599,651k (± 0.01%)}	_{599,765k (± 0.01%)}	_{+113k (+ 0.02%)}	_599,672k	_599,892k	_{p=0.045 n=6}
_{Memory Allocs}	_{4,939,663 (± 0.18%)}	_{4,938,600 (± 0.03%)}	_~	_4,937,093	_4,940,324	_{p=0.810 n=6}
_{Config Time}	_{0.004s (±18.82%)}	_0.004s	_~	_~	_~	_{p=0.405 n=6}
_{Parse Time}	_{0.141s (± 7.95%)}	_{0.134s (± 7.32%)}	_~	_0.120s	_0.147s	_{p=0.422 n=6}
_{Bind Time}	_{0.026s (±34.77%)}	_{0.037s (±22.19%)}	_~	_0.022s	_0.044s	_{p=0.089 n=6}
_{Check Time}	_{0.971s (± 1.39%)}	_{0.962s (± 0.82%)}	_~	_0.953s	_0.971s	_{p=0.128 n=6}
_{Emit Time}	_{0.001s (±109.43%)}	_0.001s	_~	_~	_~	_{p=0.071 n=6}
_{Total Time}	_{1.146s (± 0.77%)}	_{1.140s (± 1.44%)}	_~	_1.120s	_1.165s	_{p=0.298 n=6}

System info unknown

Hosts

native

Scenarios

Compiler-Unions - native
angular-1 - native
mui-docs - native
self-build-src - native
self-compiler - native
ts-pre-modules - native
vscode - native
webpack - native
xstate-main - native

_Benchmark	_Name	_Iterations
_Current	_pr	₆
_Baseline	_baseline	₆

lsp

Comparison Report - baseline..pr

_Metric	_baseline	_pr	_Delta	_Best	_Worst	_p-value
_{Compiler-UnionsLSP - native}
_{Req 1 - updateOpen}	_9ms	_9ms	_~	_~	_~	_{p=1.000 n=6}
_{Req 2 - geterr}	_{952ms (± 1.59%)}	_{950ms (± 0.87%)}	_~	_939ms	_960ms	_{p=0.936 n=6}
_{Req 3 - references}	_{27ms (± 4.30%)}	_{28ms (± 6.88%)}	_~	_27ms	_32ms	_{p=0.357 n=6}
_{Req 4 - navto}	_{16ms (± 6.08%)}	_{17ms (±12.11%)}	_~	_16ms	_21ms	_{p=0.599 n=6}
_{CompilerLSP - native}
_{Req 1 - updateOpen}	_10ms	_10ms	_~	_~	_~	_{p=1.000 n=6}
_{Req 2 - geterr}	_{446ms (± 2.74%)}	_{448ms (± 2.89%)}	_~	_427ms	_466ms	_{p=0.748 n=6}
_{Req 3 - references}	_{33ms (± 5.75%)}	_{33ms (± 8.26%)}	_~	_30ms	_38ms	_{p=0.868 n=6}
_{Req 4 - navto}	_{18ms (± 2.81%)}	_{18ms (± 5.63%)}	_~	_17ms	_20ms	_{p=0.928 n=6}

System info unknown

Hosts

native

Scenarios

CompilerLSP - native
Compiler-UnionsLSP - native
xstate-main-1-LSP - native

_Benchmark	_Name	_Iterations
_Current	_pr	₆
_Baseline	_baseline	₆

startup

Comparison Report - baseline..pr

_Metric	_baseline	_pr	_Delta	_Best	_Worst	_p-value
_{lsp-startup - native}
_{Execution time}	_{4.64ms (±516.54%)}	_{4.66ms (±516.54%)}	_{+0.02ms (+ 0.43%)}	_0.00ms	_467.03ms	_{p=0.000 n=600}
_{tsgo-startup - native}
_{Execution time}	_{5.74ms (±516.56%)}	_{5.72ms (±516.55%)}	_~	_0.00ms	_576.34ms	_{p=0.232 n=600}

System info unknown

Hosts

native

Scenarios

lsp-startup - native
tsgo-startup - native

_Benchmark	_Name	_Iterations
_Current	_pr	₆
_Baseline	_baseline	₆

Developer Information:

Download Benchmarks

jakebailey · 2026-04-11T02:09:51Z

@typescript-bot perf test this faster

typescript-bot · 2026-04-11T02:09:55Z

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

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

typescript-bot · 2026-04-11T02:33:12Z

@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 - native}
_Errors	₄	₄	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_{81,813 (± 0.02%)}	_{81,812 (± 0.04%)}	_~	_81,774	_81,841	_{p=0.809 n=6}
_Types	_98,821	_98,821	_~	_~	_~	_{p=1.000 n=6}
_{Memory Used}	_{175,150k (± 0.06%)}	_{175,084k (± 0.06%)}	_~	_174,966k	_175,196k	_{p=0.173 n=6}
_{Memory Allocs}	_{1,771,605 (± 0.01%)}	_{1,770,472 (± 0.01%)}	_{-1,134 (- 0.06%)}	_1,770,226	_1,770,835	_{p=0.005 n=6}
_{Config Time}	_0.000s	_{0.000s (±244.70%)}	_~	_0.000s	_0.001s	_{p=0.405 n=6}
_{Parse Time}	_{0.067s (± 9.35%)}	_{0.061s (±18.05%)}	_~	_0.050s	_0.077s	_{p=0.334 n=6}
_{Bind Time}	_0s	_0s	_~	_~	_~	_{p=1.000 n=6}
_{Check Time}	_0s	_0s	_~	_~	_~	_{p=1.000 n=6}
_{Emit Time}	_{0.851s (± 1.87%)}	_{0.851s (± 1.19%)}	_~	_0.842s	_0.864s	_{p=0.936 n=6}
_{Total Time}	_{0.917s (± 1.99%)}	_{0.911s (± 1.55%)}	_~	_0.893s	_0.929s	_{p=0.688 n=6}
_{angular-1 - native}
_Errors	₂	₂	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_{885,047 (± 0.07%)}	_{878,476 (± 0.13%)}	_{-6,570 (- 0.74%)}	_877,146	_880,339	_{p=0.005 n=6}
_Types	_{263,843 (± 0.00%)}	_{263,847 (± 0.00%)}	_{+4 (+ 0.00%)}	_263,844	_263,848	_{p=0.005 n=6}
_{Memory Used}	_{839,272k (± 0.04%)}	_{890,697k (± 0.07%)}	_{🔻+51,425k (+ 6.13%)}	_889,525k	_891,138k	_{p=0.005 n=6}
_{Memory Allocs}	_{6,713,534 (± 0.17%)}	_{6,627,401 (± 0.06%)}	_{-86,133 (- 1.28%)}	_6,623,354	_6,633,865	_{p=0.005 n=6}
_{Config Time}	_{0.029s (± 7.84%)}	_{0.027s (± 2.98%)}	_~	_0.027s	_0.029s	_{p=0.253 n=6}
_{Parse Time}	_{0.241s (± 6.46%)}	_{0.242s (±10.68%)}	_~	_0.206s	_0.273s	_{p=0.936 n=6}
_{Bind Time}	_0s	_0s	_~	_~	_~	_{p=1.000 n=6}
_{Check Time}	_0s	_0s	_~	_~	_~	_{p=1.000 n=6}
_{Emit Time}	_{1.897s (± 0.93%)}	_{1.872s (± 1.74%)}	_~	_1.832s	_1.908s	_{p=0.128 n=6}
_{Total Time}	_{2.168s (± 1.47%)}	_{2.143s (± 2.26%)}	_~	_2.081s	_2.212s	_{p=0.378 n=6}
_{mui-docs - native}
_Errors	₃	₃	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_4,250,033	_4,250,033	_~	_~	_~	_{p=1.000 n=6}
_Types	_1,532,068	_1,532,068	_~	_~	_~	_{p=1.000 n=6}
_{Memory Used}	_{5,408,575k (± 0.07%)}	_{5,405,510k (± 0.07%)}	_~	_5,402,569k	_5,413,243k	_{p=0.298 n=6}
_{Memory Allocs}	_{99,322,029 (±23.46%)}	_{59,047,914 (± 0.05%)}	_{🟩-40,274,115 (-40.55%)}	_59,017,021	_59,085,596	_{p=0.005 n=6}
_{Config Time}	_{0.023s (± 6.73%)}	_{0.025s (±17.29%)}	_~	_0.021s	_0.031s	_{p=0.803 n=6}
_{Parse Time}	_{1.110s (±32.61%)}	_{0.536s (± 2.85%)}	_{🟩-0.574s (-51.69%)}	_0.513s	_0.560s	_{p=0.005 n=6}
_{Bind Time}	_0.002s	_0.002s	_~	_~	_~	_{p=1.000 n=6}
_{Check Time}	_{16.792s (± 0.61%)}	_{16.836s (± 0.43%)}	_~	_16.696s	_16.893s	_{p=0.230 n=6}
_{Emit Time}	_{0.446s (± 3.98%)}	_{0.433s (± 3.91%)}	_~	_0.421s	_0.455s	_{p=0.221 n=6}
_{Total Time}	_{18.808s (± 2.54%)}	_{18.312s (± 0.61%)}	_{-0.496s (- 2.64%)}	_18.090s	_18.385s	_{p=0.045 n=6}
_{self-build-src - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_1,396,619	_1,396,619	_~	_~	_~	_{p=1.000 n=6}
_Types	_442,163	_442,163	_~	_~	_~	_{p=1.000 n=6}
_{Memory Used}	_{1,647,701k (± 0.27%)}	_{1,649,184k (± 0.49%)}	_~	_1,639,633k	_1,659,819k	_{p=0.810 n=6}
_{Memory Allocs}	_{57,293,918 (± 0.11%)}	_{57,293,636 (± 0.13%)}	_~	_57,194,250	_57,405,515	_{p=0.810 n=6}
_{Config Time}	_{0.015s (±42.79%)}	_{0.013s (±48.27%)}	_~	_0.007s	_0.023s	_{p=0.573 n=6}
_{Parse Time}	_{0.261s (± 4.62%)}	_{0.259s (± 2.28%)}	_~	_0.251s	_0.267s	_{p=0.378 n=6}
_{Bind Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=6}
_{Check Time}	_{2.316s (± 0.87%)}	_{2.314s (± 1.16%)}	_~	_2.288s	_2.347s	_{p=0.575 n=6}
_{Emit Time}	_{0.216s (± 3.89%)}	_{0.212s (± 4.43%)}	_~	_0.200s	_0.227s	_{p=0.689 n=6}
_{Total Time}	_{29.307s (± 0.32%)}	_{29.212s (± 0.69%)}	_~	_28.843s	_29.412s	_{p=0.378 n=6}
_{self-compiler - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_338,176	_338,176	_~	_~	_~	_{p=1.000 n=6}
_Types	_199,525	_199,525	_~	_~	_~	_{p=1.000 n=6}
_{Memory Used}	_{331,956k (± 0.04%)}	_{331,930k (± 0.04%)}	_~	_331,775k	_332,087k	_{p=0.575 n=6}
_{Memory Allocs}	_{2,552,615 (± 0.01%)}	_{2,552,365 (± 0.02%)}	_~	_2,551,717	_2,553,480	_{p=0.173 n=6}
_{Config Time}	_0.001s	_0.001s	_~	_~	_~	_{p=1.000 n=6}
_{Parse Time}	_{0.136s (± 4.65%)}	_{0.134s (± 3.75%)}	_~	_0.125s	_0.139s	_{p=0.260 n=6}
_{Bind Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=6}
_{Check Time}	_{1.399s (± 1.20%)}	_{1.385s (± 0.96%)}	_~	_1.373s	_1.411s	_{p=0.173 n=6}
_{Emit Time}	_{0.089s (±14.70%)}	_{0.083s (± 6.97%)}	_~	_0.077s	_0.091s	_{p=0.422 n=6}
_{Total Time}	_{1.675s (± 1.42%)}	_{1.653s (± 0.59%)}	_~	_1.648s	_1.673s	_{p=0.092 n=6}
_{ts-pre-modules - native}
_Errors	₃	₃	_~	_~	_~	_{p=1.000 n=6}
_Symbols	₇₅₂	₇₅₂	_~	_~	_~	_{p=1.000 n=6}
_Types	₃₅₆	₃₅₆	_~	_~	_~	_{p=1.000 n=6}
_{Memory Used}	_{104,609k (± 0.02%)}	_{104,583k (± 0.03%)}	_{-26k (- 0.03%)}	_104,540k	_104,622k	_{p=0.045 n=6}
_{Memory Allocs}	_{110,820 (± 0.17%)}	_{110,564 (± 0.14%)}	_~	_110,359	_110,751	_{p=0.054 n=6}
_{Config Time}	_0.001s	_{0.001s (±77.38%)}	_~	_0.000s	_0.001s	_{p=0.174 n=6}
_{Parse Time}	_{0.119s (± 5.34%)}	_{0.121s (± 7.62%)}	_~	_0.112s	_0.135s	_{p=0.630 n=6}
_{Bind Time}	_0s	_0s	_~	_~	_~	_{p=1.000 n=6}
_{Check Time}	_0s	_0s	_~	_~	_~	_{p=1.000 n=6}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=6}
_{Total Time}	_{0.120s (± 5.16%)}	_{0.123s (± 7.79%)}	_~	_0.113s	_0.137s	_{p=0.688 n=6}
_{vscode - native}
_Errors	₁₉₃	₁₉₃	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_6,065,648	_6,065,648	_~	_~	_~	_{p=1.000 n=6}
_Types	_2,296,278	_2,296,278	_~	_~	_~	_{p=1.000 n=6}
_{Memory Used}	_{4,134,054k (± 0.03%)}	_{4,192,247k (± 0.16%)}	_{+58,193k (+ 1.41%)}	_4,185,538k	_4,202,159k	_{p=0.005 n=6}
_{Memory Allocs}	_{30,015,374 (± 0.05%)}	_{29,751,768 (± 0.01%)}	_{-263,607 (- 0.88%)}	_29,747,686	_29,757,514	_{p=0.005 n=6}
_{Config Time}	_{0.124s (± 6.89%)}	_{0.128s (± 9.72%)}	_~	_0.111s	_0.143s	_{p=0.471 n=6}
_{Parse Time}	_{0.720s (± 1.32%)}	_{0.732s (± 4.60%)}	_~	_0.688s	_0.779s	_{p=0.575 n=6}
_{Bind Time}	_{0.112s (± 2.92%)}	_{0.143s (±37.01%)}	_~	_0.109s	_0.232s	_{p=0.808 n=6}
_{Check Time}	_{8.075s (± 0.88%)}	_{8.055s (± 0.54%)}	_~	_7.993s	_8.119s	_{p=0.688 n=6}
_{Emit Time}	_{1.989s (± 8.54%)}	_{2.049s (± 6.91%)}	_~	_1.859s	_2.178s	_{p=0.229 n=6}
_{Total Time}	_{11.041s (± 0.98%)}	_{11.132s (± 0.78%)}	_~	_11.008s	_11.250s	_{p=0.173 n=6}
_{webpack - native}
_Errors	_1,149	_1,149	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_700,265	_700,265	_~	_~	_~	_{p=1.000 n=6}
_Types	_334,364	_334,364	_~	_~	_~	_{p=1.000 n=6}
_{Memory Used}	_{553,765k (± 0.02%)}	_{553,628k (± 0.02%)}	_{-137k (- 0.02%)}	_553,478k	_553,774k	_{p=0.045 n=6}
_{Memory Allocs}	_{4,248,353 (± 0.43%)}	_{4,237,071 (± 0.05%)}	_~	_4,235,312	_4,240,694	_{p=0.298 n=6}
_{Config Time}	_{0.014s (±17.48%)}	_{0.012s (±13.98%)}	_~	_0.010s	_0.014s	_{p=0.104 n=6}
_{Parse Time}	_{0.147s (± 5.43%)}	_{0.148s (± 5.28%)}	_~	_0.141s	_0.159s	_{p=1.000 n=6}
_{Bind Time}	_{0.034s (±18.74%)}	_{0.031s (±21.38%)}	_~	_0.026s	_0.044s	_{p=0.518 n=6}
_{Check Time}	_{1.128s (± 0.69%)}	_{1.130s (± 0.94%)}	_~	_1.122s	_1.150s	_{p=0.810 n=6}
_{Emit Time}	_{0.001s (±34.96%)}	_0.002s	_{🔻+0.001s (+71.43%)}	_~	_~	_{p=0.007 n=6}
_{Total Time}	_{1.345s (± 1.37%)}	_{1.341s (± 0.96%)}	_~	_1.329s	_1.365s	_{p=0.687 n=6}
_{xstate-main - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=6}
_Symbols	_991,165	_991,165	_~	_~	_~	_{p=1.000 n=6}
_Types	_350,724	_350,724	_~	_~	_~	_{p=1.000 n=6}
_{Memory Used}	_{603,254k (± 0.01%)}	_{603,212k (± 0.02%)}	_~	_602,988k	_603,377k	_{p=0.936 n=6}
_{Memory Allocs}	_{4,947,449 (± 0.17%)}	_{4,944,305 (± 0.14%)}	_~	_4,935,061	_4,953,486	_{p=0.575 n=6}
_{Config Time}	_{0.007s (±28.54%)}	_{0.007s (±24.01%)}	_~	_0.005s	_0.009s	_{p=0.931 n=6}
_{Parse Time}	_{0.139s (± 3.26%)}	_{0.132s (± 4.95%)}	_~	_0.123s	_0.141s	_{p=0.126 n=6}
_{Bind Time}	_{0.031s (±17.80%)}	_{0.029s (±10.14%)}	_~	_0.025s	_0.033s	_{p=0.808 n=6}
_{Check Time}	_{1.135s (± 1.13%)}	_{1.140s (± 1.08%)}	_~	_1.125s	_1.155s	_{p=0.378 n=6}
_{Emit Time}	_0.001s	_0.001s	_~	_~	_~	_{p=1.000 n=6}
_{Total Time}	_{1.318s (± 1.06%)}	_{1.313s (± 1.19%)}	_~	_1.286s	_1.329s	_{p=0.810 n=6}

System info unknown

Hosts

native

Scenarios

Compiler-Unions - native
angular-1 - native
mui-docs - native
self-build-src - native
self-compiler - native
ts-pre-modules - native
vscode - native
webpack - native
xstate-main - native

_Benchmark	_Name	_Iterations
_Current	_pr	₆
_Baseline	_baseline	₆

Developer Information:

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jakebailey mentioned this pull request Apr 8, 2026

runtime: failed to create new OS thread #3139

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jakebailey added 2 commits April 10, 2026 19:09

Limit loader/emitter to GOMAXPROCS

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wild idea

cab6754

jakebailey force-pushed the jabaile/limit-load-emit branch from 911ab8d to cab6754 Compare April 11, 2026 02:09

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Limit loader/emitter to GOMAXPROCS#3369

Limit loader/emitter to GOMAXPROCS#3369
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