Report process CPU time in extended diagnostics by jakebailey · Pull Request #65003 · microsoft/TypeScript

Jake Bailey (jakebailey) · 2026-10-28T22:40:19Z

This should theoretically be less noisy because it's asking the OS for the actual time it ran the process (or did things on behalf of the process).

Wall-clock timings include time spent waiting for other processes and I/O. Process CPU time provides a complementary measure of compiler work across all threads without counting time spent executing unrelated processes.

Jake Bailey (jakebailey) · 2026-10-28T22:40:38Z

TypeScript Bot (@typescript-bot) perf test this faster

Though of course i'll only have one side!

typescript-automation · 2026-10-28T22:40:43Z

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

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

Jake Bailey (jakebailey) · 2026-10-28T22:41:02Z

TypeScript Bot (@typescript-bot) perf test this faster

If I run it twice, then we can compare numbers, since the pool is currently all the same instance types, maybe.

typescript-automation · 2026-10-28T22:41:07Z

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

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

typescript-automation · 2026-10-28T23:33:01Z

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 - native}
_Errors	₄₁	₄₁	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_88,466	_88,466	_~	_~	_~	_{p=1.000 n=20}
_Types	_79,607	_79,607	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{104,148k (± 0.03%)}	_{104,145k (± 0.02%)}	_~	_104,056k	_104,242k	_{p=0.952 n=20}
_{Memory Allocs}	_{1,263,854 (± 0.01%)}	_{1,263,859 (± 0.01%)}	_~	_1,263,518	_1,264,471	_{p=1.000 n=20}
_{Config Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.023s (± 3.37%)}	_{0.023s (± 2.92%)}	_~	_0.020s	_0.027s	_{p=0.674 n=20}
_{Bind Time}	_{0.009s (± 4.18%)}	_{0.008s (± 6.07%)}	_~	_0.007s	_0.011s	_{p=0.687 n=20}
_{Check Time}	_{0.214s (± 0.86%)}	_{0.215s (± 0.79%)}	_~	_0.208s	_0.221s	_{p=0.541 n=20}
_{Emit Time}	_{0.138s (± 0.90%)}	_{0.139s (± 1.39%)}	_~	_0.132s	_0.152s	_{p=0.383 n=20}
_{Total Time}	_{0.387s (± 0.53%)}	_{0.389s (± 0.72%)}	_~	_0.379s	_0.406s	_{p=0.440 n=20}
_{angular-1 - native}
_Errors	₃	₃	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_{586,559 (± 0.02%)}	_{586,546 (± 0.02%)}	_~	_585,884	_586,833	_{p=0.974 n=20}
_Types	_{241,687 (± 0.00%)}	_{241,688 (± 0.00%)}	_~	_241,685	_241,698	_{p=0.157 n=20}
_{Memory Used}	_{517,983k (± 0.01%)}	_{517,956k (± 0.02%)}	_~	_517,606k	_518,372k	_{p=0.616 n=20}
_{Memory Allocs}	_{7,799,705 (± 0.10%)}	_{7,799,427 (± 0.10%)}	_~	_7,785,902	_7,848,846	_{p=0.779 n=20}
_{Config Time}	_{0.009s (± 2.82%)}	_{0.008s (± 2.79%)}	_~	_0.008s	_0.009s	_{p=0.751 n=20}
_{Parse Time}	_{0.125s (± 2.05%)}	_{0.126s (± 2.30%)}	_~	_0.117s	_0.137s	_{p=0.455 n=20}
_{Bind Time}	_{0.045s (± 8.17%)}	_{0.045s (± 8.98%)}	_~	_0.039s	_0.070s	_{p=0.908 n=20}
_{Check Time}	_0s	_0s	_~	_~	_~	_{p=1.000 n=20}
_{Emit Time}	_{0.870s (± 0.91%)}	_{0.867s (± 1.05%)}	_~	_0.843s	_0.909s	_{p=0.457 n=20}
_{Total Time}	_{1.061s (± 1.04%)}	_{1.059s (± 1.26%)}	_~	_1.026s	_1.123s	_{p=0.804 n=20}
_{arktype - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_685,920	_685,920	_~	_~	_~	_{p=1.000 n=20}
_Types	_939,467	_939,467	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{497,279k (± 0.01%)}	_{497,295k (± 0.01%)}	_~	_496,899k	_497,441k	_{p=0.373 n=20}
_{Memory Allocs}	_{12,108,241 (± 0.02%)}	_{12,108,100 (± 0.01%)}	_~	_12,104,611	_12,115,483	_{p=0.758 n=20}
_{Config Time}	_0.001s	_0.001s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.041s (± 3.06%)}	_{0.042s (± 4.39%)}	_~	_0.035s	_0.050s	_{p=0.752 n=20}
_{Bind Time}	_{0.014s (± 9.65%)}	_{0.014s (± 9.53%)}	_~	_0.012s	_0.020s	_{p=0.912 n=20}
_{Check Time}	_{0.989s (± 0.67%)}	_{1.012s (± 1.47%)}	_{+0.023s (+ 2.35%)}	_0.978s	_1.115s	_{p=0.005 n=20}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Total Time}	_{1.074s (± 0.54%)}	_{1.098s (± 1.38%)}	_{+0.024s (+ 2.21%)}	_1.059s	_1.200s	_{p=0.005 n=20}
_{class-transformer - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_45,376	_45,376	_~	_~	_~	_{p=1.000 n=20}
_Types	_7,573	_7,573	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{27,839k (± 0.02%)}	_{27,831k (± 0.02%)}	_~	_27,811k	_27,858k	_{p=0.070 n=20}
_{Memory Allocs}	_{248,690 (± 0.05%)}	_{248,580 (± 0.03%)}	_~	_248,290	_248,884	_{p=0.092 n=20}
_{Config Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.011s (± 4.06%)}	_{0.011s (± 3.85%)}	_~	_0.009s	_0.013s	_{p=0.848 n=20}
_{Bind Time}	_{0.003s (±10.26%)}	_{0.003s (± 8.07%)}	_~	_0.003s	_0.005s	_{p=0.487 n=20}
_{Check Time}	_{0.008s (± 4.31%)}	_{0.008s (± 5.00%)}	_~	_0.007s	_0.010s	_{p=0.396 n=20}
_{Emit Time}	_{0.009s (± 5.49%)}	_{0.008s (± 5.19%)}	_~	_0.007s	_0.010s	_{p=0.560 n=20}
_{Total Time}	_{0.032s (± 1.78%)}	_{0.032s (± 1.46%)}	_~	_0.029s	_0.033s	_{p=0.402 n=20}
_{effect - native}
_Errors	₁₂	₁₂	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_1,235,115	_1,235,115	_~	_~	_~	_{p=1.000 n=20}
_Types	_894,113	_894,113	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{940,451k (± 0.02%)}	_{940,531k (± 0.02%)}	_~	_939,959k	_941,414k	_{p=0.779 n=20}
_{Memory Allocs}	_{12,668,788 (± 0.02%)}	_{12,672,090 (± 0.04%)}	_~	_12,659,623	_12,705,401	_{p=0.547 n=20}
_{Config Time}	_{0.002s (±14.55%)}	_0.002s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.160s (± 2.20%)}	_{0.161s (± 2.64%)}	_~	_0.146s	_0.177s	_{p=1.000 n=20}
_{Bind Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Check Time}	_{0.984s (± 1.05%)}	_{0.994s (± 1.06%)}	_~	_0.960s	_1.047s	_{p=0.223 n=20}
_{Emit Time}	_{0.536s (± 2.76%)}	_{0.528s (± 2.41%)}	_~	_0.486s	_0.567s	_{p=0.465 n=20}
_{Total Time}	_{1.781s (± 0.91%)}	_{1.783s (± 0.92%)}	_~	_1.734s	_1.840s	_{p=0.920 n=20}
_{mui-docs - native}
_Errors	_11,405	_11,405	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_3,784,019	_3,784,019	_~	_~	_~	_{p=1.000 n=20}
_Types	_1,355,974	_1,355,974	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{1,835,603k (± 0.07%)}	_{1,836,228k (± 0.07%)}	_~	_1,829,995k	_1,840,774k	_{p=0.425 n=20}
_{Memory Allocs}	_{25,995,540 (± 0.11%)}	_{26,030,094 (± 0.21%)}	_~	_25,911,478	_26,437,673	_{p=0.445 n=20}
_{Config Time}	_{0.009s (± 1.61%)}	_{0.009s (± 1.93%)}	_~	_0.008s	_0.009s	_{p=1.000 n=20}
_{Parse Time}	_{0.303s (± 3.33%)}	_{0.303s (± 2.18%)}	_~	_0.276s	_0.336s	_{p=0.909 n=20}
_{Bind Time}	_0.001s	_0.001s	_~	_~	_~	_{p=1.000 n=20}
_{Check Time}	_{3.287s (± 1.09%)}	_{3.275s (± 1.18%)}	_~	_3.120s	_3.387s	_{p=0.952 n=20}
_{Emit Time}	_{0.260s (± 2.74%)}	_{0.260s (± 2.21%)}	_~	_0.250s	_0.309s	_{p=0.587 n=20}
_{Total Time}	_{4.377s (± 1.11%)}	_{4.367s (± 1.06%)}	_~	_4.168s	_4.541s	_{p=0.820 n=20}
_{sentry - native}
_Errors	₂	₂	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_4,793,245	_4,793,245	_~	_~	_~	_{p=1.000 n=20}
_Types	_2,607,047	_2,607,047	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{2,880,743k (± 0.03%)}	_{2,880,590k (± 0.03%)}	_~	_2,878,454k	_2,884,099k	_{p=0.738 n=20}
_{Memory Allocs}	_{75,408,659 (± 0.33%)}	_{75,243,417 (± 0.17%)}	_~	_74,879,120	_75,892,891	_{p=0.478 n=20}
_{Config Time}	_{0.026s (± 1.89%)}	_{0.026s (± 1.06%)}	_~	_0.025s	_0.027s	_{p=0.916 n=20}
_{Parse Time}	_{0.492s (± 5.16%)}	_{0.490s (± 4.15%)}	_~	_0.440s	_0.619s	_{p=0.952 n=20}
_{Bind Time}	_{0.202s (±10.55%)}	_{0.171s (± 8.57%)}	_{🟩-0.031s (-15.26%)}	_0.144s	_0.237s	_{p=0.050 n=20}
_{Check Time}	_{7.024s (± 0.81%)}	_{7.081s (± 1.14%)}	_~	_6.865s	_7.547s	_{p=0.542 n=20}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Total Time}	_{7.802s (± 0.79%)}	_{7.824s (± 0.99%)}	_~	_7.621s	_8.273s	_{p=0.973 n=20}
_{social-app - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_1,883,074	_1,883,074	_~	_~	_~	_{p=1.000 n=20}
_Types	_1,158,170	_1,158,170	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{972,405k (± 0.01%)}	_{972,526k (± 0.01%)}	_~	_971,960k	_973,274k	_{p=0.298 n=20}
_{Memory Allocs}	_{13,574,722 (± 0.14%)}	_{13,557,578 (± 0.13%)}	_~	_13,516,488	_13,664,915	_{p=0.096 n=20}
_{Config Time}	_0.008s	_0.008s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.156s (± 1.80%)}	_{0.159s (± 2.91%)}	_~	_0.147s	_0.181s	_{p=0.783 n=20}
_{Bind Time}	_{0.043s (± 7.42%)}	_{0.044s (± 9.28%)}	_~	_0.038s	_0.070s	_{p=0.546 n=20}
_{Check Time}	_{1.474s (± 0.87%)}	_{1.474s (± 0.40%)}	_~	_1.458s	_1.497s	_{p=0.358 n=20}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Total Time}	_{1.697s (± 0.88%)}	_{1.702s (± 0.50%)}	_~	_1.672s	_1.745s	_{p=0.090 n=20}
_{strada-build-src - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_1,184,972	_1,184,972	_~	_~	_~	_{p=1.000 n=20}
_Types	_438,963	_438,963	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{1,166,405k (± 0.34%)}	_{1,166,908k (± 0.39%)}	_~	_1,151,787k	_1,184,337k	_{p=0.820 n=20}
_{Memory Allocs}	_{47,655,855 (± 0.09%)}	_{47,658,042 (± 0.10%)}	_~	_47,454,462	_47,847,828	_{p=0.862 n=20}
_{Config Time}	_{0.002s (±14.66%)}	_{0.002s (±14.66%)}	_~	_0.001s	_0.003s	_{p=1.000 n=20}
_{Parse Time}	_{0.137s (± 1.85%)}	_{0.135s (± 2.00%)}	_~	_0.126s	_0.145s	_{p=0.223 n=20}
_{Bind Time}	_0.000s	_{0.000s (±208.60%)}	_~	_0.000s	_0.001s	_{p=1.000 n=20}
_{Check Time}	_{0.834s (± 0.62%)}	_{0.833s (± 0.71%)}	_~	_0.815s	_0.871s	_{p=0.825 n=20}
_{Emit Time}	_{0.139s (± 0.84%)}	_{0.142s (± 2.62%)}	_~	_0.134s	_0.167s	_{p=0.995 n=20}
_{Total Time}	_{9.652s (± 0.51%)}	_{9.659s (± 0.63%)}	_~	_9.497s	_10.093s	_{p=1.000 n=20}
_{strada-compiler - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_263,511	_263,511	_~	_~	_~	_{p=1.000 n=20}
_Types	_196,116	_196,116	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{224,592k (± 0.02%)}	_{224,567k (± 0.02%)}	_~	_224,261k	_224,678k	_{p=0.625 n=20}
_{Memory Allocs}	_{2,401,327 (± 0.01%)}	_{2,401,442 (± 0.01%)}	_~	_2,399,647	_2,402,279	_{p=0.331 n=20}
_{Config Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.051s (± 4.68%)}	_{0.051s (± 3.11%)}	_~	_0.045s	_0.058s	_{p=0.577 n=20}
_{Bind Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Check Time}	_{0.419s (± 1.85%)}	_{0.418s (± 1.72%)}	_~	_0.391s	_0.447s	_{p=0.899 n=20}
_{Emit Time}	_{0.053s (± 8.92%)}	_{0.051s (± 5.91%)}	_~	_0.042s	_0.064s	_{p=0.480 n=20}
_{Total Time}	_{0.556s (± 2.37%)}	_{0.551s (± 1.64%)}	_~	_0.503s	_0.581s	_{p=0.825 n=20}
_{t3code-server - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_4,350,661	_4,350,661	_~	_~	_~	_{p=1.000 n=20}
_Types	_3,040,647	_3,040,647	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{2,434,256k (± 0.03%)}	_{2,433,772k (± 0.02%)}	_~	_2,432,365k	_2,435,541k	_{p=0.289 n=20}
_{Memory Allocs}	_{37,358,060 (± 0.05%)}	_{37,357,760 (± 0.07%)}	_~	_37,301,440	_37,522,611	_{p=0.620 n=20}
_{Config Time}	_0.003s	_0.003s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.259s (± 2.19%)}	_{0.255s (± 2.25%)}	_~	_0.233s	_0.282s	_{p=0.261 n=20}
_{Bind Time}	_{0.093s (±11.28%)}	_{0.094s (±10.52%)}	_~	_0.078s	_0.135s	_{p=0.497 n=20}
_{Check Time}	_{7.834s (± 0.55%)}	_{7.812s (± 0.51%)}	_~	_7.638s	_7.987s	_{p=0.602 n=20}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Total Time}	_{8.201s (± 0.57%)}	_{8.176s (± 0.47%)}	_~	_8.011s	_8.359s	_{p=0.698 n=20}
_{tanstack-router - native}
_Errors	₁	₁	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_571,756	_571,756	_~	_~	_~	_{p=1.000 n=20}
_Types	_397,689	_397,689	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{331,402k (± 0.01%)}	_{331,417k (± 0.01%)}	_~	_331,228k	_331,591k	_{p=0.387 n=20}
_{Memory Allocs}	_{4,389,291 (± 0.12%)}	_{4,396,006 (± 0.19%)}	_~	_4,378,015	_4,451,717	_{p=0.253 n=20}
_{Config Time}	_0.001s	_0.001s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.040s (± 4.56%)}	_{0.040s (± 4.07%)}	_~	_0.036s	_0.049s	_{p=0.941 n=20}
_{Bind Time}	_{0.014s (±12.70%)}	_{0.013s (±12.52%)}	_~	_0.011s	_0.021s	_{p=0.350 n=20}
_{Check Time}	_{0.557s (± 0.58%)}	_{0.556s (± 0.48%)}	_~	_0.547s	_0.566s	_{p=0.804 n=20}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Total Time}	_{0.631s (± 0.71%)}	_{0.629s (± 0.65%)}	_~	_0.615s	_0.643s	_{p=0.448 n=20}
_{ts-pre-modules - native}
_Errors	₈₇	₈₇	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_231,616	_231,616	_~	_~	_~	_{p=1.000 n=20}
_Types	_181,195	_181,195	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{193,514k (± 0.01%)}	_{193,529k (± 0.02%)}	_~	_193,372k	_193,655k	_{p=0.279 n=20}
_{Memory Allocs}	_{1,318,010 (± 0.01%)}	_{1,318,129 (± 0.01%)}	_~	_1,317,498	_1,319,102	_{p=0.229 n=20}
_{Config Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.043s (± 3.17%)}	_{0.042s (± 2.93%)}	_~	_0.038s	_0.047s	_{p=0.594 n=20}
_{Bind Time}	_{0.020s (± 4.35%)}	_{0.021s (± 5.33%)}	_~	_0.016s	_0.025s	_{p=0.287 n=20}
_{Check Time}	_{0.293s (± 1.10%)}	_{0.293s (± 0.91%)}	_~	_0.284s	_0.300s	_{p=0.867 n=20}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Total Time}	_{0.362s (± 0.91%)}	_{0.362s (± 0.70%)}	_~	_0.352s	_0.373s	_{p=0.963 n=20}
_{vscode - native}
_Errors	₁₁	₁₁	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_7,399,203	_7,399,203	_~	_~	_~	_{p=1.000 n=20}
_Types	_4,359,460	_4,359,460	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{5,149,714k (± 0.03%)}	_{5,150,024k (± 0.02%)}	_~	_5,146,755k	_5,153,375k	_{p=0.157 n=20}
_{Memory Allocs}	_{56,454,985 (± 0.07%)}	_{56,423,117 (± 0.02%)}	_~	_56,402,795	_56,496,599	_{p=0.231 n=20}
_{Config Time}	_{0.036s (± 2.66%)}	_{0.035s (± 1.68%)}	_~	_0.034s	_0.039s	_{p=0.745 n=20}
_{Parse Time}	_{0.948s (± 2.92%)}	_{0.962s (± 2.79%)}	_~	_0.868s	_1.070s	_{p=0.542 n=20}
_{Bind Time}	_{0.380s (±11.28%)}	_{0.354s (± 7.39%)}	_~	_0.314s	_0.551s	_{p=0.723 n=20}
_{Check Time}	_{8.169s (± 1.34%)}	_{8.187s (± 1.69%)}	_~	_7.598s	_8.677s	_{p=0.947 n=20}
_{Emit Time}	_{3.048s (± 6.79%)}	_{2.845s (± 3.52%)}	_~	_2.657s	_3.688s	_{p=0.229 n=20}
_{Total Time}	_{12.642s (± 2.30%)}	_{12.445s (± 1.44%)}	_~	_12.019s	_13.281s	_{p=0.394 n=20}
_{webpack - native}
_Errors	₆₁₉	₆₁₉	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_925,723	_925,723	_~	_~	_~	_{p=1.000 n=20}
_Types	_643,578	_643,578	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{697,633k (± 0.01%)}	_{697,621k (± 0.02%)}	_~	_696,963k	_698,078k	_{p=0.995 n=20}
_{Memory Allocs}	_{6,555,118 (± 0.07%)}	_{6,553,111 (± 0.04%)}	_~	_6,547,358	_6,561,414	_{p=0.779 n=20}
_{Config Time}	_0.004s	_0.004s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.142s (± 3.55%)}	_{0.141s (± 3.41%)}	_~	_0.126s	_0.159s	_{p=0.753 n=20}
_{Bind Time}	_{0.043s (± 7.33%)}	_{0.045s (±10.04%)}	_~	_0.037s	_0.072s	_{p=0.834 n=20}
_{Check Time}	_{1.203s (± 0.68%)}	_{1.203s (± 0.46%)}	_~	_1.186s	_1.231s	_{p=0.533 n=20}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Total Time}	_{1.415s (± 0.85%)}	_{1.416s (± 0.71%)}	_~	_1.381s	_1.464s	_{p=0.733 n=20}
_{xstate-main - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_640,490	_640,490	_~	_~	_~	_{p=1.000 n=20}
_Types	_387,988	_387,988	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{350,999k (± 0.03%)}	_{350,934k (± 0.02%)}	_~	_350,709k	_351,427k	_{p=0.289 n=20}
_{Memory Allocs}	_{3,989,821 (± 0.06%)}	_{3,994,173 (± 0.11%)}	_~	_3,976,872	_4,015,207	_{p=0.121 n=20}
_{Config Time}	_0.001s	_0.001s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.063s (± 3.27%)}	_{0.065s (± 5.07%)}	_~	_0.057s	_0.090s	_{p=0.712 n=20}
_{Bind Time}	_{0.023s (±11.49%)}	_{0.020s (± 8.74%)}	_{🟩-0.003s (-12.80%)}	_0.017s	_0.030s	_{p=0.048 n=20}
_{Check Time}	_{0.431s (± 0.77%)}	_{0.428s (± 0.71%)}	_~	_0.418s	_0.439s	_{p=0.310 n=20}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Total Time}	_{0.523s (± 0.57%)}	_{0.519s (± 0.98%)}	_~	_0.504s	_0.544s	_{p=0.092 n=20}

System info unknown

Hosts

native

Scenarios

Compiler-Unions - native
angular-1 - native
arktype - native
class-transformer - native
effect - native
mui-docs - native
sentry - native
social-app - native
strada-build-src - native
strada-compiler - native
t3code-server - native
tanstack-router - native
ts-pre-modules - native
vscode - native
webpack - native
xstate-main - native

_Benchmark	_Name	_Iterations
_Current	_pr	₂₀
_Baseline	_baseline	₂₀

Developer Information:

Download Benchmarks

typescript-automation · 2026-10-28T23:41:29Z

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 - native}
_Errors	₄₁	₄₁	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_88,466	_88,466	_~	_~	_~	_{p=1.000 n=20}
_Types	_79,607	_79,607	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{104,143k (± 0.02%)}	_{104,158k (± 0.03%)}	_~	_104,072k	_104,307k	_{p=0.683 n=20}
_{Memory Allocs}	_{1,263,828 (± 0.01%)}	_{1,263,775 (± 0.00%)}	_~	_1,263,555	_1,264,029	_{p=0.634 n=20}
_{Config Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.023s (± 2.47%)}	_{0.023s (± 2.41%)}	_~	_0.020s	_0.025s	_{p=0.365 n=20}
_{Bind Time}	_{0.009s (± 4.54%)}	_{0.009s (± 6.00%)}	_~	_0.007s	_0.010s	_{p=0.958 n=20}
_{Check Time}	_{0.218s (± 0.81%)}	_{0.219s (± 1.09%)}	_~	_0.207s	_0.226s	_{p=0.712 n=20}
_{Emit Time}	_{0.141s (± 1.08%)}	_{0.140s (± 0.86%)}	_~	_0.135s	_0.144s	_{p=0.121 n=20}
_{Total Time}	_{0.394s (± 0.76%)}	_{0.393s (± 0.68%)}	_~	_0.383s	_0.400s	_{p=0.643 n=20}
_{angular-1 - native}
_Errors	₃	₃	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_{586,571 (± 0.02%)}	_{586,568 (± 0.01%)}	_~	_586,334	_586,829	_{p=0.723 n=20}
_Types	_{241,687 (± 0.00%)}	_{241,688 (± 0.00%)}	_~	_241,685	_241,697	_{p=0.746 n=20}
_{Memory Used}	_{517,954k (± 0.01%)}	_{517,908k (± 0.02%)}	_~	_517,643k	_518,255k	_{p=0.449 n=20}
_{Memory Allocs}	_{7,802,163 (± 0.12%)}	_{7,798,608 (± 0.13%)}	_~	_7,786,145	_7,874,570	_{p=0.429 n=20}
_{Config Time}	_0.009s	_0.009s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.128s (± 2.57%)}	_{0.128s (± 3.46%)}	_~	_0.114s	_0.153s	_{p=0.856 n=20}
_{Bind Time}	_{0.041s (± 5.79%)}	_{0.047s (±11.00%)}	_~	_0.038s	_0.069s	_{p=0.132 n=20}
_{Check Time}	_0s	_0s	_~	_~	_~	_{p=1.000 n=20}
_{Emit Time}	_{0.861s (± 1.34%)}	_{0.864s (± 1.19%)}	_~	_0.824s	_0.930s	_{p=0.857 n=20}
_{Total Time}	_{1.051s (± 1.41%)}	_{1.059s (± 1.27%)}	_~	_1.005s	_1.133s	_{p=0.723 n=20}
_{arktype - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_685,920	_685,920	_~	_~	_~	_{p=1.000 n=20}
_Types	_939,467	_939,467	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{497,323k (± 0.01%)}	_{497,279k (± 0.01%)}	_~	_497,022k	_497,489k	_{p=0.317 n=20}
_{Memory Allocs}	_{12,108,884 (± 0.02%)}	_{12,107,890 (± 0.02%)}	_~	_12,104,533	_12,120,198	_{p=0.289 n=20}
_{Config Time}	_0.001s	_0.001s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.042s (± 5.22%)}	_{0.042s (± 3.35%)}	_~	_0.038s	_0.048s	_{p=0.672 n=20}
_{Bind Time}	_{0.015s (±13.92%)}	_{0.015s (±12.53%)}	_~	_0.012s	_0.024s	_{p=0.873 n=20}
_{Check Time}	_{1.029s (± 1.57%)}	_{1.015s (± 0.91%)}	_~	_0.991s	_1.073s	_{p=0.132 n=20}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Total Time}	_{1.117s (± 1.44%)}	_{1.102s (± 0.83%)}	_~	_1.076s	_1.153s	_{p=0.167 n=20}
_{class-transformer - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_45,376	_45,376	_~	_~	_~	_{p=1.000 n=20}
_Types	_7,573	_7,573	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{27,839k (± 0.02%)}	_{27,835k (± 0.02%)}	_~	_27,804k	_27,872k	_{p=0.311 n=20}
_{Memory Allocs}	_{248,611 (± 0.08%)}	_{248,610 (± 0.07%)}	_~	_248,005	_249,384	_{p=0.794 n=20}
_{Config Time}	_{0.000s (±143.57%)}	_0.000s	_~	_~	_~	_{p=0.487 n=20}
_{Parse Time}	_{0.013s (± 8.43%)}	_{0.012s (± 6.16%)}	_~	_0.009s	_0.015s	_{p=0.559 n=20}
_{Bind Time}	_{0.004s (±12.97%)}	_{0.004s (±13.20%)}	_~	_0.003s	_0.006s	_{p=0.976 n=20}
_{Check Time}	_{0.009s (± 8.13%)}	_{0.009s (± 7.65%)}	_~	_0.007s	_0.012s	_{p=0.769 n=20}
_{Emit Time}	_{0.009s (± 8.15%)}	_{0.009s (± 7.11%)}	_~	_0.007s	_0.012s	_{p=0.793 n=20}
_{Total Time}	_{0.036s (± 4.72%)}	_{0.036s (± 3.19%)}	_~	_0.031s	_0.041s	_{p=0.504 n=20}
_{effect - native}
_Errors	₁₂	₁₂	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_1,235,115	_1,235,115	_~	_~	_~	_{p=1.000 n=20}
_Types	_894,113	_894,113	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{940,613k (± 0.03%)}	_{940,695k (± 0.02%)}	_~	_939,651k	_941,520k	_{p=0.524 n=20}
_{Memory Allocs}	_{12,672,059 (± 0.02%)}	_{12,674,261 (± 0.03%)}	_~	_12,662,532	_12,697,197	_{p=0.602 n=20}
_{Config Time}	_0.002s	_0.002s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.151s (± 1.31%)}	_{0.149s (± 1.21%)}	_~	_0.143s	_0.156s	_{p=0.094 n=20}
_{Bind Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Check Time}	_{0.940s (± 0.77%)}	_{0.950s (± 1.20%)}	_~	_0.921s	_1.025s	_{p=0.234 n=20}
_{Emit Time}	_{0.509s (± 2.34%)}	_{0.510s (± 2.68%)}	_~	_0.465s	_0.578s	_{p=0.963 n=20}
_{Total Time}	_{1.696s (± 0.55%)}	_{1.705s (± 1.04%)}	_~	_1.647s	_1.829s	_{p=0.542 n=20}
_{mui-docs - native}
_Errors	_11,405	_11,405	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_3,784,019	_3,784,019	_~	_~	_~	_{p=1.000 n=20}
_Types	_1,355,974	_1,355,974	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{1,836,606k (± 0.09%)}	_{1,837,078k (± 0.08%)}	_~	_1,831,288k	_1,841,667k	_{p=0.718 n=20}
_{Memory Allocs}	_{26,047,242 (± 0.17%)}	_{26,009,395 (± 0.12%)}	_~	_25,922,471	_26,196,288	_{p=0.277 n=20}
_{Config Time}	_{0.009s (± 7.27%)}	_{0.008s (± 2.79%)}	_~	_0.008s	_0.009s	_{p=1.000 n=20}
_{Parse Time}	_{0.301s (± 2.75%)}	_{0.307s (± 2.18%)}	_~	_0.290s	_0.356s	_{p=0.073 n=20}
_{Bind Time}	_0.001s	_0.001s	_~	_~	_~	_{p=1.000 n=20}
_{Check Time}	_{3.248s (± 0.73%)}	_{3.259s (± 0.91%)}	_~	_3.141s	_3.425s	_{p=0.644 n=20}
_{Emit Time}	_{0.253s (± 1.74%)}	_{0.255s (± 2.20%)}	_~	_0.242s	_0.297s	_{p=0.481 n=20}
_{Total Time}	_{4.332s (± 0.61%)}	_{4.338s (± 0.69%)}	_~	_4.229s	_4.506s	_{p=0.815 n=20}
_{sentry - native}
_Errors	₂	₂	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_4,793,245	_4,793,245	_~	_~	_~	_{p=1.000 n=20}
_Types	_2,607,047	_2,607,047	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{2,880,216k (± 0.03%)}	_{2,880,858k (± 0.04%)}	_~	_2,877,985k	_2,886,321k	_{p=0.512 n=20}
_{Memory Allocs}	_{75,306,128 (± 0.31%)}	_{75,276,895 (± 0.17%)}	_~	_74,947,554	_75,838,153	_{p=0.883 n=20}
_{Config Time}	_{0.027s (± 1.05%)}	_{0.027s (± 1.28%)}	_{+0.001s (+ 2.07%)}	_0.026s	_0.029s	_{p=0.022 n=20}
_{Parse Time}	_{0.506s (± 6.06%)}	_{0.484s (± 3.05%)}	_~	_0.446s	_0.574s	_{p=0.365 n=20}
_{Bind Time}	_{0.191s (±10.97%)}	_{0.198s (± 9.79%)}	_~	_0.138s	_0.259s	_{p=0.784 n=20}
_{Check Time}	_{7.038s (± 0.90%)}	_{7.086s (± 1.04%)}	_~	_6.856s	_7.338s	_{p=0.433 n=20}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Total Time}	_{7.816s (± 0.96%)}	_{7.851s (± 0.96%)}	_~	_7.635s	_8.119s	_{p=0.414 n=20}
_{social-app - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_1,883,074	_1,883,074	_~	_~	_~	_{p=1.000 n=20}
_Types	_1,158,170	_1,158,170	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{972,380k (± 0.01%)}	_{972,418k (± 0.01%)}	_~	_971,934k	_972,821k	_{p=0.703 n=20}
_{Memory Allocs}	_{13,579,818 (± 0.25%)}	_{13,616,612 (± 0.35%)}	_~	_13,517,715	_13,859,626	_{p=0.211 n=20}
_{Config Time}	_{0.008s (± 2.85%)}	_{0.008s (± 3.15%)}	_~	_0.007s	_0.008s	_{p=0.514 n=20}
_{Parse Time}	_{0.192s (±11.12%)}	_{0.187s (± 4.72%)}	_~	_0.168s	_0.256s	_{p=0.952 n=20}
_{Bind Time}	_{0.049s (±13.55%)}	_{0.049s (±10.20%)}	_~	_0.040s	_0.073s	_{p=0.236 n=20}
_{Check Time}	_{1.642s (± 0.68%)}	_{1.640s (± 0.75%)}	_~	_1.599s	_1.697s	_{p=0.878 n=20}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Total Time}	_{1.910s (± 1.69%)}	_{1.903s (± 1.00%)}	_~	_1.867s	_2.051s	_{p=0.857 n=20}
_{strada-build-src - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_1,184,972	_1,184,972	_~	_~	_~	_{p=1.000 n=20}
_Types	_438,963	_438,963	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{1,168,730k (± 0.41%)}	_{1,167,402k (± 0.27%)}	_~	_1,156,860k	_1,185,064k	_{p=0.947 n=20}
_{Memory Allocs}	_{47,683,705 (± 0.13%)}	_{47,738,024 (± 0.10%)}	_~	_47,555,681	_47,906,175	_{p=0.174 n=20}
_{Config Time}	_{0.002s (±12.21%)}	_{0.002s (±15.95%)}	_~	_0.001s	_0.003s	_{p=0.406 n=20}
_{Parse Time}	_{0.139s (± 1.59%)}	_{0.142s (± 1.05%)}	_{+0.003s (+ 1.90%)}	_0.133s	_0.147s	_{p=0.043 n=20}
_{Bind Time}	_{0.000s (±208.60%)}	_{0.000s (±208.60%)}	_~	_0.000s	_0.001s	_{p=1.000 n=20}
_{Check Time}	_{0.813s (± 0.66%)}	_{0.819s (± 0.42%)}	_~	_0.800s	_0.834s	_{p=0.155 n=20}
_{Emit Time}	_{0.142s (± 2.15%)}	_{0.141s (± 0.84%)}	_~	_0.136s	_0.144s	_{p=0.984 n=20}
_{Total Time}	_{9.448s (± 0.50%)}	_{9.508s (± 0.33%)}	_{+0.061s (+ 0.64%)}	_9.394s	_9.657s	_{p=0.024 n=20}
_{strada-compiler - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_263,511	_263,511	_~	_~	_~	_{p=1.000 n=20}
_Types	_196,116	_196,116	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{224,607k (± 0.02%)}	_{224,578k (± 0.02%)}	_~	_224,406k	_224,726k	_{p=0.298 n=20}
_{Memory Allocs}	_{2,401,456 (± 0.02%)}	_{2,401,334 (± 0.01%)}	_~	_2,399,823	_2,403,121	_{p=0.820 n=20}
_{Config Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.051s (± 3.36%)}	_{0.051s (± 3.16%)}	_~	_0.044s	_0.056s	_{p=0.814 n=20}
_{Bind Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Check Time}	_{0.389s (± 1.08%)}	_{0.388s (± 0.79%)}	_~	_0.380s	_0.402s	_{p=0.963 n=20}
_{Emit Time}	_{0.051s (± 5.33%)}	_{0.048s (± 3.87%)}	_~	_0.042s	_0.056s	_{p=0.226 n=20}
_{Total Time}	_{0.519s (± 0.65%)}	_{0.514s (± 0.88%)}	_~	_0.492s	_0.531s	_{p=0.053 n=20}
_{t3code-server - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_4,350,661	_4,350,661	_~	_~	_~	_{p=1.000 n=20}
_Types	_3,040,647	_3,040,647	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{2,433,258k (± 0.02%)}	_{2,434,137k (± 0.05%)}	_~	_2,431,633k	_2,444,636k	_{p=0.369 n=20}
_{Memory Allocs}	_{37,368,567 (± 0.06%)}	_{37,376,673 (± 0.07%)}	_~	_37,307,425	_37,498,190	_{p=0.925 n=20}
_{Config Time}	_0.003s	_0.003s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.252s (± 4.92%)}	_{0.253s (± 2.09%)}	_~	_0.240s	_0.278s	_{p=0.208 n=20}
_{Bind Time}	_{0.088s (± 9.48%)}	_{0.080s (± 7.79%)}	_{🟩-0.007s (- 8.05%)}	_0.073s	_0.136s	_{p=0.037 n=20}
_{Check Time}	_{7.266s (± 0.65%)}	_{7.274s (± 0.99%)}	_~	_7.055s	_7.605s	_{p=0.995 n=20}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Total Time}	_{7.620s (± 0.66%)}	_{7.621s (± 0.93%)}	_~	_7.424s	_7.936s	_{p=0.794 n=20}
_{tanstack-router - native}
_Errors	₁	₁	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_571,756	_571,756	_~	_~	_~	_{p=1.000 n=20}
_Types	_397,689	_397,689	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{331,453k (± 0.01%)}	_{331,411k (± 0.01%)}	_~	_331,209k	_331,610k	_{p=0.268 n=20}
_{Memory Allocs}	_{4,393,054 (± 0.16%)}	_{4,393,301 (± 0.16%)}	_~	_4,375,255	_4,418,116	_{p=0.841 n=20}
_{Config Time}	_0.001s	_0.001s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.041s (± 4.32%)}	_{0.040s (± 3.64%)}	_~	_0.035s	_0.045s	_{p=0.614 n=20}
_{Bind Time}	_{0.012s (± 9.90%)}	_{0.013s (±12.45%)}	_~	_0.010s	_0.021s	_{p=0.426 n=20}
_{Check Time}	_{0.557s (± 0.88%)}	_{0.557s (± 0.62%)}	_~	_0.542s	_0.574s	_{p=0.899 n=20}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Total Time}	_{0.630s (± 0.73%)}	_{0.629s (± 0.74%)}	_~	_0.610s	_0.647s	_{p=0.763 n=20}
_{ts-pre-modules - native}
_Errors	₈₇	₈₇	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_231,616	_231,616	_~	_~	_~	_{p=1.000 n=20}
_Types	_181,195	_181,195	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{193,516k (± 0.02%)}	_{193,536k (± 0.01%)}	_~	_193,432k	_193,612k	_{p=0.274 n=20}
_{Memory Allocs}	_{1,318,351 (± 0.02%)}	_{1,318,286 (± 0.02%)}	_~	_1,317,576	_1,319,652	_{p=0.547 n=20}
_{Config Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.045s (± 2.67%)}	_{0.048s (± 2.72%)}	_{🔻+0.003s (+ 5.83%)}	_0.040s	_0.053s	_{p=0.001 n=20}
_{Bind Time}	_{0.024s (± 5.69%)}	_{0.024s (± 6.04%)}	_~	_0.018s	_0.030s	_{p=0.909 n=20}
_{Check Time}	_{0.365s (± 2.05%)}	_{0.362s (± 1.62%)}	_~	_0.338s	_0.400s	_{p=0.693 n=20}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Total Time}	_{0.442s (± 1.64%)}	_{0.441s (± 1.46%)}	_~	_0.415s	_0.476s	_{p=0.815 n=20}
_{vscode - native}
_Errors	₁₁	₁₁	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_7,399,203	_7,399,203	_~	_~	_~	_{p=1.000 n=20}
_Types	_4,359,460	_4,359,460	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{5,150,226k (± 0.02%)}	_{5,150,138k (± 0.01%)}	_~	_5,147,648k	_5,154,015k	_{p=0.799 n=20}
_{Memory Allocs}	_{56,433,881 (± 0.03%)}	_{56,422,316 (± 0.02%)}	_~	_56,405,924	_56,480,183	_{p=0.883 n=20}
_{Config Time}	_{0.035s (± 0.89%)}	_{0.035s (± 0.85%)}	_~	_0.034s	_0.037s	_{p=0.837 n=20}
_{Parse Time}	_{0.891s (± 1.23%)}	_{0.899s (± 1.50%)}	_~	_0.855s	_0.957s	_{p=0.635 n=20}
_{Bind Time}	_{0.296s (± 1.23%)}	_{0.296s (± 1.29%)}	_~	_0.285s	_0.316s	_{p=0.783 n=20}
_{Check Time}	_{7.458s (± 0.74%)}	_{7.440s (± 0.63%)}	_~	_7.239s	_7.783s	_{p=0.482 n=20}
_{Emit Time}	_{2.651s (± 3.92%)}	_{2.658s (± 3.85%)}	_~	_2.526s	_3.407s	_{p=0.525 n=20}
_{Total Time}	_{11.387s (± 0.79%)}	_{11.385s (± 0.98%)}	_~	_11.184s	_12.124s	_{p=0.989 n=20}
_{webpack - native}
_Errors	₆₁₉	₆₁₉	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_925,723	_925,723	_~	_~	_~	_{p=1.000 n=20}
_Types	_643,578	_643,578	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{697,642k (± 0.02%)}	_{697,651k (± 0.02%)}	_~	_697,253k	_698,105k	_{p=0.820 n=20}
_{Memory Allocs}	_{6,555,801 (± 0.06%)}	_{6,553,991 (± 0.04%)}	_~	_6,547,404	_6,568,673	_{p=0.799 n=20}
_{Config Time}	_0.004s	_0.004s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.140s (± 3.63%)}	_{0.145s (± 3.02%)}	_~	_0.131s	_0.162s	_{p=0.198 n=20}
_{Bind Time}	_{0.050s (±12.03%)}	_{0.043s (± 7.78%)}	_{🟩-0.007s (-14.80%)}	_0.037s	_0.069s	_{p=0.024 n=20}
_{Check Time}	_{1.204s (± 0.70%)}	_{1.200s (± 0.36%)}	_~	_1.187s	_1.217s	_{p=0.387 n=20}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Total Time}	_{1.422s (± 0.71%)}	_{1.415s (± 0.52%)}	_~	_1.391s	_1.441s	_{p=0.358 n=20}
_{xstate-main - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_640,490	_640,490	_~	_~	_~	_{p=1.000 n=20}
_Types	_387,988	_387,988	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{350,953k (± 0.02%)}	_{350,980k (± 0.02%)}	_~	_350,707k	_351,336k	_{p=0.883 n=20}
_{Memory Allocs}	_{3,992,215 (± 0.07%)}	_{3,992,201 (± 0.08%)}	_~	_3,978,089	_4,011,599	_{p=0.947 n=20}
_{Config Time}	_0.001s	_0.001s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.061s (± 3.03%)}	_{0.063s (± 3.02%)}	_~	_0.055s	_0.069s	_{p=0.158 n=20}
_{Bind Time}	_{0.022s (±10.54%)}	_{0.021s (±10.55%)}	_~	_0.017s	_0.030s	_{p=0.766 n=20}
_{Check Time}	_{0.419s (± 1.12%)}	_{0.422s (± 1.28%)}	_~	_0.406s	_0.454s	_{p=0.524 n=20}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Total Time}	_{0.508s (± 1.28%)}	_{0.512s (± 1.15%)}	_~	_0.491s	_0.547s	_{p=0.365 n=20}

System info unknown

Hosts

native

Scenarios

Compiler-Unions - native
angular-1 - native
arktype - native
class-transformer - native
effect - native
mui-docs - native
sentry - native
social-app - native
strada-build-src - native
strada-compiler - native
t3code-server - native
tanstack-router - native
ts-pre-modules - native
vscode - native
webpack - native
xstate-main - native

_Benchmark	_Name	_Iterations
_Current	_pr	₂₀
_Baseline	_baseline	₂₀

Developer Information:

Download Benchmarks

Jake Bailey (jakebailey) · 2026-10-28T23:42:35Z

Hm, benchmarker does not understand this

The performance runner requests ordinary diagnostics, not extended diagnostics, so it cannot collect CPU time when the metric requires the extended flag.

Jake Bailey (jakebailey) · 2026-11-01T01:28:52Z

TypeScript Bot (@typescript-bot) perf test this faster

typescript-automation · 2026-11-01T01:28:58Z

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

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

typescript-automation · 2026-11-01T02:19:51Z

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 - native}
_Errors	₄₁	₄₁	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_88,466	_88,466	_~	_~	_~	_{p=1.000 n=20}
_Types	_79,607	_79,607	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{107,504k (± 0.02%)}	_{107,499k (± 0.03%)}	_~	_107,347k	_107,625k	_{p=0.602 n=20}
_{Memory Allocs}	_{1,262,163 (± 0.01%)}	_{1,262,223 (± 0.01%)}	_~	_1,261,833	_1,262,603	_{p=0.394 n=20}
_{Config Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.023s (± 7.42%)}	_{0.023s (± 2.51%)}	_~	_0.021s	_0.026s	_{p=0.097 n=20}
_{Bind Time}	_{0.009s (±15.08%)}	_{0.008s (± 3.98%)}	_~	_0.007s	_0.009s	_{p=0.149 n=20}
_{Check Time}	_{0.212s (± 3.30%)}	_{0.208s (± 0.74%)}	_~	_0.201s	_0.212s	_{p=0.920 n=20}
_{Emit Time}	_{0.131s (± 1.24%)}	_{0.132s (± 1.58%)}	_~	_0.128s	_0.147s	_{p=0.929 n=20}
_{Total Time}	_{0.378s (± 2.62%)}	_{0.374s (± 0.31%)}	_~	_0.371s	_0.381s	_{p=0.804 n=20}
_{angular-1 - native}
_Errors	₃	₃	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_586,553	_586,553	_~	_~	_~	_{p=1.000 n=20}
_Types	_241,682	_241,682	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{519,803k (± 0.02%)}	_{519,816k (± 0.02%)}	_~	_519,464k	_520,082k	_{p=0.820 n=20}
_{Memory Allocs}	_{7,800,170 (± 0.22%)}	_{7,801,044 (± 0.13%)}	_~	_7,779,669	_7,845,226	_{p=0.904 n=20}
_{Config Time}	_{0.008s (± 2.51%)}	_{0.009s (± 2.73%)}	_~	_0.008s	_0.009s	_{p=0.054 n=20}
_{Parse Time}	_{0.126s (± 5.23%)}	_{0.126s (± 3.98%)}	_~	_0.109s	_0.158s	_{p=0.587 n=20}
_{Bind Time}	_{0.045s (±10.79%)}	_{0.042s (± 9.80%)}	_~	_0.035s	_0.066s	_{p=0.161 n=20}
_{Check Time}	_0s	_0s	_~	_~	_~	_{p=1.000 n=20}
_{Emit Time}	_{0.637s (± 1.14%)}	_{0.637s (± 0.92%)}	_~	_0.621s	_0.664s	_{p=0.815 n=20}
_{Total Time}	_{0.827s (± 1.39%)}	_{0.823s (± 1.05%)}	_~	_0.801s	_0.888s	_{p=0.625 n=20}
_{arktype - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_685,920	_685,920	_~	_~	_~	_{p=1.000 n=20}
_Types	_939,467	_939,467	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{495,295k (± 0.01%)}	_{495,349k (± 0.01%)}	_~	_495,167k	_495,587k	_{p=0.157 n=20}
_{Memory Allocs}	_{12,061,824 (± 0.01%)}	_{12,063,391 (± 0.02%)}	_~	_12,057,919	_12,080,013	_{p=0.478 n=20}
_{Config Time}	_0.001s	_0.001s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.042s (± 3.48%)}	_{0.042s (± 3.45%)}	_~	_0.037s	_0.049s	_{p=0.814 n=20}
_{Bind Time}	_{0.014s (±11.74%)}	_{0.015s (±11.37%)}	_~	_0.011s	_0.020s	_{p=0.371 n=20}
_{Check Time}	_{0.901s (± 0.92%)}	_{0.898s (± 0.76%)}	_~	_0.870s	_0.930s	_{p=0.713 n=20}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Total Time}	_{0.986s (± 0.89%)}	_{0.984s (± 0.70%)}	_~	_0.958s	_1.016s	_{p=0.857 n=20}
_{class-transformer - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_45,376	_45,376	_~	_~	_~	_{p=1.000 n=20}
_Types	_7,573	_7,573	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{27,893k (± 0.02%)}	_{27,891k (± 0.02%)}	_~	_27,861k	_27,911k	_{p=0.836 n=20}
_{Memory Allocs}	_{248,379 (± 0.04%)}	_{248,215 (± 0.05%)}	_~	_247,781	_248,872	_{p=0.076 n=20}
_{Config Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.011s (± 3.85%)}	_{0.011s (± 3.20%)}	_~	_0.009s	_0.012s	_{p=0.255 n=20}
_{Bind Time}	_{0.004s (±11.84%)}	_{0.003s (±12.90%)}	_~	_0.002s	_0.005s	_{p=0.698 n=20}
_{Check Time}	_{0.008s (± 6.72%)}	_{0.008s (± 7.13%)}	_~	_0.006s	_0.010s	_{p=0.853 n=20}
_{Emit Time}	_{0.008s (± 7.13%)}	_{0.007s (± 9.27%)}	_~	_0.006s	_0.010s	_{p=0.297 n=20}
_{Total Time}	_{0.031s (± 2.04%)}	_{0.031s (± 2.01%)}	_~	_0.027s	_0.033s	_{p=0.662 n=20}
_{effect - native}
_Errors	₁₂	₁₂	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_1,235,115	_1,235,115	_~	_~	_~	_{p=1.000 n=20}
_Types	_894,113	_894,113	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{949,936k (± 0.03%)}	_{949,892k (± 0.01%)}	_~	_949,373k	_950,418k	_{p=1.000 n=20}
_{Memory Allocs}	_{12,636,637 (± 0.02%)}	_{12,636,532 (± 0.03%)}	_~	_12,628,077	_12,662,937	_{p=0.820 n=20}
_{Config Time}	_{0.002s (± 5.09%)}	_{0.002s (± 5.09%)}	_~	_0.002s	_0.003s	_{p=1.000 n=20}
_{Parse Time}	_{0.148s (± 1.38%)}	_{0.149s (± 1.93%)}	_~	_0.139s	_0.161s	_{p=0.722 n=20}
_{Bind Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Check Time}	_{0.895s (± 0.77%)}	_{0.898s (± 0.83%)}	_~	_0.872s	_0.926s	_{p=0.560 n=20}
_{Emit Time}	_{0.503s (± 2.42%)}	_{0.503s (± 1.61%)}	_~	_0.458s	_0.525s	_{p=0.920 n=20}
_{Total Time}	_{1.643s (± 0.63%)}	_{1.649s (± 0.46%)}	_~	_1.611s	_1.668s	_{p=0.223 n=20}
_{mui-docs - native}
_Errors	_11,405	_11,405	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_3,784,019	_3,784,019	_~	_~	_~	_{p=1.000 n=20}
_Types	_1,355,974	_1,355,974	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{1,767,856k (± 0.07%)}	_{1,768,048k (± 0.07%)}	_~	_1,762,374k	_1,772,239k	_{p=0.565 n=20}
_{Memory Allocs}	_{25,725,894 (± 0.13%)}	_{25,747,710 (± 0.12%)}	_~	_25,656,779	_25,880,001	_{p=0.242 n=20}
_{Config Time}	_{0.008s (± 9.93%)}	_{0.008s (± 1.77%)}	_~	_0.008s	_0.009s	_{p=1.000 n=20}
_{Parse Time}	_{0.289s (± 2.49%)}	_{0.282s (± 2.25%)}	_~	_0.251s	_0.313s	_{p=0.167 n=20}
_{Bind Time}	_0.001s	_0.001s	_~	_~	_~	_{p=1.000 n=20}
_{Check Time}	_{2.991s (± 0.85%)}	_{2.990s (± 0.91%)}	_~	_2.906s	_3.111s	_{p=0.920 n=20}
_{Emit Time}	_{0.248s (± 2.92%)}	_{0.245s (± 1.51%)}	_~	_0.234s	_0.268s	_{p=0.763 n=20}
_{Total Time}	_{4.025s (± 0.68%)}	_{4.017s (± 0.81%)}	_~	_3.915s	_4.158s	_{p=0.723 n=20}
_{sentry - native}
_Errors	₂	₂	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_4,793,245	_4,793,245	_~	_~	_~	_{p=1.000 n=20}
_Types	_2,606,905	_2,606,905	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{2,846,020k (± 0.05%)}	_{2,846,361k (± 0.03%)}	_~	_2,844,528k	_2,849,231k	_{p=0.174 n=20}
_{Memory Allocs}	_{74,976,834 (± 0.16%)}	_{75,195,972 (± 0.39%)}	_~	_74,584,430	_77,405,035	_{p=0.369 n=20}
_{Config Time}	_{0.026s (± 1.47%)}	_{0.026s (± 1.51%)}	_~	_0.024s	_0.027s	_{p=0.992 n=20}
_{Parse Time}	_{0.477s (± 4.17%)}	_{0.512s (± 8.04%)}	_~	_0.416s	_0.725s	_{p=0.331 n=20}
_{Bind Time}	_{0.163s (±11.18%)}	_{0.165s (±11.50%)}	_~	_0.125s	_0.250s	_{p=0.888 n=20}
_{Check Time}	_{6.762s (± 1.17%)}	_{6.810s (± 1.05%)}	_~	_6.437s	_7.007s	_{p=0.274 n=20}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Total Time}	_{7.482s (± 1.21%)}	_{7.565s (± 1.00%)}	_~	_7.155s	_7.764s	_{p=0.204 n=20}
_{social-app - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_1,883,074	_1,883,074	_~	_~	_~	_{p=1.000 n=20}
_Types	_1,158,168	_1,158,168	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{966,810k (± 0.01%)}	_{966,885k (± 0.01%)}	_~	_966,443k	_967,515k	_{p=0.516 n=20}
_{Memory Allocs}	_{13,510,760 (± 0.29%)}	_{13,506,674 (± 0.30%)}	_~	_13,444,478	_13,799,333	_{p=0.925 n=20}
_{Config Time}	_{0.008s (± 2.18%)}	_{0.008s (± 3.08%)}	_~	_0.007s	_0.008s	_{p=0.155 n=20}
_{Parse Time}	_{0.173s (± 3.41%)}	_{0.172s (± 2.57%)}	_~	_0.158s	_0.195s	_{p=0.995 n=20}
_{Bind Time}	_{0.041s (± 4.51%)}	_{0.045s (± 9.93%)}	_~	_0.037s	_0.069s	_{p=0.454 n=20}
_{Check Time}	_{1.507s (± 0.96%)}	_{1.507s (± 1.29%)}	_~	_1.433s	_1.582s	_{p=0.888 n=20}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Total Time}	_{1.747s (± 0.81%)}	_{1.750s (± 1.08%)}	_~	_1.690s	_1.839s	_{p=0.941 n=20}
_{strada-build-src - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_1,184,972	_1,184,972	_~	_~	_~	_{p=1.000 n=20}
_Types	_438,959	_438,959	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{1,169,883k (± 0.36%)}	_{1,171,624k (± 0.38%)}	_~	_1,157,797k	_1,192,669k	_{p=0.602 n=20}
_{Memory Allocs}	_{47,526,176 (± 0.09%)}	_{47,518,037 (± 0.12%)}	_~	_47,329,872	_47,716,379	_{p=0.738 n=20}
_{Config Time}	_{0.002s (±11.84%)}	_{0.002s (±17.02%)}	_~	_0.001s	_0.003s	_{p=0.861 n=20}
_{Parse Time}	_{0.142s (± 2.15%)}	_{0.139s (± 1.74%)}	_~	_0.129s	_0.149s	_{p=0.279 n=20}
_{Bind Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Check Time}	_{0.816s (± 0.92%)}	_{0.821s (± 1.22%)}	_~	_0.797s	_0.903s	_{p=0.233 n=20}
_{Emit Time}	_{0.144s (± 3.06%)}	_{0.143s (± 2.27%)}	_~	_0.135s	_0.161s	_{p=0.962 n=20}
_{Total Time}	_{9.527s (± 0.90%)}	_{9.514s (± 0.52%)}	_~	_9.312s	_9.697s	_{p=0.425 n=20}
_{strada-compiler - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_263,511	_263,511	_~	_~	_~	_{p=1.000 n=20}
_Types	_196,116	_196,116	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{223,537k (± 0.02%)}	_{223,569k (± 0.02%)}	_~	_223,385k	_223,708k	_{p=0.204 n=20}
_{Memory Allocs}	_{2,389,716 (± 0.01%)}	_{2,389,711 (± 0.02%)}	_~	_2,388,343	_2,391,681	_{p=0.862 n=20}
_{Config Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.049s (± 3.01%)}	_{0.050s (± 3.86%)}	_~	_0.042s	_0.056s	_{p=0.752 n=20}
_{Bind Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Check Time}	_{0.376s (± 1.24%)}	_{0.375s (± 1.17%)}	_~	_0.361s	_0.394s	_{p=0.804 n=20}
_{Emit Time}	_{0.045s (± 4.81%)}	_{0.046s (± 4.46%)}	_~	_0.040s	_0.057s	_{p=0.398 n=20}
_{Total Time}	_{0.495s (± 1.06%)}	_{0.496s (± 1.03%)}	_~	_0.476s	_0.525s	_{p=0.542 n=20}
_{t3code-server - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_4,350,661	_4,350,661	_~	_~	_~	_{p=1.000 n=20}
_Types	_3,040,644	_3,040,644	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{2,417,838k (± 0.02%)}	_{2,418,125k (± 0.02%)}	_~	_2,416,284k	_2,420,457k	_{p=0.664 n=20}
_{Memory Allocs}	_{37,149,432 (± 0.05%)}	_{37,183,195 (± 0.09%)}	_~	_37,076,987	_37,354,036	_{p=0.102 n=20}
_{Config Time}	_{0.003s (± 4.95%)}	_{0.003s (± 8.12%)}	_~	_0.002s	_0.003s	_{p=0.235 n=20}
_{Parse Time}	_{0.245s (± 2.42%)}	_{0.242s (± 2.04%)}	_~	_0.221s	_0.257s	_{p=0.481 n=20}
_{Bind Time}	_{0.079s (± 8.94%)}	_{0.090s (±12.24%)}	_~	_0.072s	_0.130s	_{p=0.130 n=20}
_{Check Time}	_{5.698s (± 0.49%)}	_{5.711s (± 0.37%)}	_~	_5.645s	_5.808s	_{p=0.365 n=20}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Total Time}	_{6.035s (± 0.47%)}	_{6.056s (± 0.44%)}	_~	_5.972s	_6.169s	_{p=0.218 n=20}
_{tanstack-router - native}
_Errors	₁	₁	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_571,756	_571,756	_~	_~	_~	_{p=1.000 n=20}
_Types	_397,689	_397,689	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{326,464k (± 0.01%)}	_{326,481k (± 0.01%)}	_~	_326,331k	_326,633k	_{p=0.607 n=20}
_{Memory Allocs}	_{4,350,518 (± 0.31%)}	_{4,335,281 (± 0.19%)}	_{-15,238 (- 0.35%)}	_4,320,082	_4,381,375	_{p=0.049 n=20}
_{Config Time}	_0.001s	_0.001s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.040s (± 5.03%)}	_{0.040s (± 4.81%)}	_~	_0.033s	_0.046s	_{p=0.920 n=20}
_{Bind Time}	_{0.012s (±10.08%)}	_{0.014s (±11.16%)}	_~	_0.010s	_0.021s	_{p=0.053 n=20}
_{Check Time}	_{0.496s (± 0.61%)}	_{0.502s (± 0.79%)}	_{+0.006s (+ 1.20%)}	_0.488s	_0.520s	_{p=0.016 n=20}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Total Time}	_{0.565s (± 0.69%)}	_{0.572s (± 0.87%)}	_{+0.007s (+ 1.22%)}	_0.552s	_0.599s	_{p=0.013 n=20}
_{ts-pre-modules - native}
_Errors	₈₇	₈₇	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_231,616	_231,616	_~	_~	_~	_{p=1.000 n=20}
_Types	_181,195	_181,195	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{192,977k (± 0.02%)}	_{192,958k (± 0.02%)}	_~	_192,790k	_193,116k	_{p=0.482 n=20}
_{Memory Allocs}	_{1,310,056 (± 0.02%)}	_{1,310,355 (± 0.02%)}	_~	_1,309,534	_1,311,861	_{p=0.213 n=20}
_{Config Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.044s (± 2.38%)}	_{0.045s (± 3.85%)}	_~	_0.038s	_0.053s	_{p=0.156 n=20}
_{Bind Time}	_{0.020s (± 5.22%)}	_{0.021s (± 6.29%)}	_~	_0.016s	_0.026s	_{p=0.865 n=20}
_{Check Time}	_{0.302s (± 1.96%)}	_{0.298s (± 0.79%)}	_~	_0.290s	_0.305s	_{p=0.415 n=20}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Total Time}	_{0.373s (± 1.59%)}	_{0.371s (± 0.90%)}	_~	_0.359s	_0.387s	_{p=0.995 n=20}
_{vscode - native}
_Errors	₁₁	₁₁	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_7,586,320	_7,586,320	_~	_~	_~	_{p=1.000 n=20}
_Types	_4,457,051	_4,457,051	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{5,252,035k (± 0.02%)}	_{5,252,652k (± 0.01%)}	_~	_5,249,733k	_5,255,825k	_{p=0.289 n=20}
_{Memory Allocs}	_{57,397,503 (± 0.02%)}	_{57,385,777 (± 0.01%)}	_~	_57,373,469	_57,438,877	_{p=0.659 n=20}
_{Config Time}	_{0.035s (± 1.02%)}	_{0.035s (± 0.93%)}	_~	_0.033s	_0.035s	_{p=0.716 n=20}
_{Parse Time}	_{0.891s (± 1.31%)}	_{0.905s (± 1.61%)}	_~	_0.868s	_0.990s	_{p=0.387 n=20}
_{Bind Time}	_{0.322s (± 6.62%)}	_{0.308s (± 1.28%)}	_~	_0.294s	_0.334s	_{p=0.109 n=20}
_{Check Time}	_{7.289s (± 0.71%)}	_{7.305s (± 0.62%)}	_~	_7.017s	_7.380s	_{p=0.764 n=20}
_{Emit Time}	_{2.023s (± 5.70%)}	_{1.952s (± 1.70%)}	_~	_1.915s	_2.251s	_{p=1.000 n=20}
_{Total Time}	_{10.617s (± 1.08%)}	_{10.563s (± 0.70%)}	_~	_10.195s	_10.980s	_{p=0.713 n=20}
_{webpack - native}
_Errors	₅₉₅	₅₉₅	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_861,433	_861,433	_~	_~	_~	_{p=1.000 n=20}
_Types	_595,020	_595,020	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{632,880k (± 0.02%)}	_{632,851k (± 0.01%)}	_~	_632,425k	_633,244k	_{p=0.433 n=20}
_{Memory Allocs}	_{5,885,612 (± 0.05%)}	_{5,887,602 (± 0.10%)}	_~	_5,878,577	_5,934,668	_{p=0.743 n=20}
_{Config Time}	_0.004s	_{0.004s (± 2.58%)}	_~	_0.004s	_0.005s	_{p=1.000 n=20}
_{Parse Time}	_{0.118s (± 2.03%)}	_{0.119s (± 1.42%)}	_~	_0.111s	_0.126s	_{p=0.197 n=20}
_{Bind Time}	_{0.037s (± 8.20%)}	_{0.036s (± 8.22%)}	_~	_0.032s	_0.054s	_{p=0.606 n=20}
_{Check Time}	_{0.938s (± 0.48%)}	_{0.938s (± 0.81%)}	_~	_0.914s	_0.996s	_{p=0.465 n=20}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Total Time}	_{1.117s (± 0.34%)}	_{1.118s (± 0.67%)}	_~	_1.102s	_1.178s	_{p=0.673 n=20}
_{xstate-main - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_640,490	_640,490	_~	_~	_~	_{p=1.000 n=20}
_Types	_387,984	_387,984	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{350,104k (± 0.03%)}	_{350,081k (± 0.02%)}	_~	_349,628k	_350,331k	_{p=0.910 n=20}
_{Memory Allocs}	_{3,967,374 (± 0.08%)}	_{3,969,739 (± 0.15%)}	_~	_3,952,399	_4,014,044	_{p=0.640 n=20}
_{Config Time}	_0.001s	_0.001s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.059s (± 2.30%)}	_{0.059s (± 2.69%)}	_~	_0.053s	_0.066s	_{p=0.558 n=20}
_{Bind Time}	_{0.019s (± 9.71%)}	_{0.018s (± 9.28%)}	_~	_0.015s	_0.028s	_{p=0.518 n=20}
_{Check Time}	_{0.382s (± 0.74%)}	_{0.382s (± 0.96%)}	_~	_0.371s	_0.403s	_{p=0.973 n=20}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Total Time}	_{0.465s (± 0.87%)}	_{0.466s (± 0.85%)}	_~	_0.454s	_0.482s	_{p=0.984 n=20}

System info unknown

Hosts

native

Scenarios

Compiler-Unions - native
angular-1 - native
arktype - native
class-transformer - native
effect - native
mui-docs - native
sentry - native
social-app - native
strada-build-src - native
strada-compiler - native
t3code-server - native
tanstack-router - native
ts-pre-modules - native
vscode - native
webpack - native
xstate-main - native

_Benchmark	_Name	_Iterations
_Current	_pr	₂₀
_Baseline	_baseline	₂₀

Developer Information:

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CPU time and elapsed time describe different aspects of compiler work. Keep the elapsed total at the end as the overall compilation summary.

Report process CPU time in extended diagnostics

8acf6b9

Wall-clock timings include time spent waiting for other processes and I/O. Process CPU time provides a complementary measure of compiler work across all threads without counting time spent executing unrelated processes.

typescript-automation Bot assigned Jake Bailey (jakebailey) Oct 28, 2026

typescript-automation Bot added Author: Team For Uncommitted Bug PR for untriaged, rejected, closed or missing bug labels Oct 28, 2026

Include CPU time in ordinary diagnostics

4e0958b

The performance runner requests ordinary diagnostics, not extended diagnostics, so it cannot collect CPU time when the metric requires the extended flag.

Keep total time last in compiler statistics

b78c4d2

CPU time and elapsed time describe different aspects of compiler work. Keep the elapsed total at the end as the overall compilation summary.

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Report process CPU time in extended diagnostics - #65003

Report process CPU time in extended diagnostics#65003
Jake Bailey (jakebailey) wants to merge 3 commits into
microsoft:mainfrom
jakebailey:process-cpu-time

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