Memoize repeated inference walks by jakebailey · Pull Request #64880 · microsoft/TypeScript

Jake Bailey (jakebailey) · 2026-10-19T23:10:28Z

WIP

Some inference walks are long and are made again and again with the same inputs. With Effect Schema, every call such as Schema.optional(x) inside a Struct({ ... }) infers from the contextual Constraint type to the combinator's return type, optional<S>, whose members span the large schema interfaces. Each call repeats that walk from fresh inference infos and always ends in the same candidates. Effect-heavy code like t3code spends a large share of its check time this way. When every inference info is still in its initial state, the outcome of a walk is now remembered under its source, target, priority, contravariance and type parameters, as long as the walk computed nothing new and observed no transient state, so walking it again would take the same path. Transient state is any read of an in-progress resolution, signature resolution, variance computation, flow loop or flow type cache, which are now counted. Measured with --checkers 4 (n=8): │ before.txt │ after.txt │ │ sec/op │ sec/op vs base │ Tsc/bluesky 3.069 ± 4% 3.024 ± 1% -1.47% (p=0.038 n=8) Tsc/sentry 12.74 ± 2% 12.62 ± 1% ~ (p=0.382 n=8) Tsc/t3code-server 16.81 ± 3% 16.12 ± 4% -4.12% (p=0.028 n=8) geomean 8.694 8.505 -2.17% │ before.txt │ after.txt │ │ rss-B │ rss-B vs base │ Tsc/bluesky 1.422Gi ± 2% 1.413Gi ± 1% ~ (p=0.959 n=8) Tsc/sentry 4.571Gi ± 8% 4.617Gi ± 4% ~ (p=0.721 n=8) Tsc/t3code-server 4.378Gi ± 2% 4.650Gi ± 6% +6.21% (p=0.038 n=8) geomean 3.053Gi 3.119Gi +2.16% │ before.txt │ after.txt │ │ heap-B │ heap-B vs base │ Tsc/bluesky 1.152Gi ± 0% 1.153Gi ± 0% ~ (p=0.195 n=8) Tsc/sentry 3.620Gi ± 0% 3.622Gi ± 0% ~ (p=0.195 n=8) Tsc/t3code-server 3.761Gi ± 0% 3.763Gi ± 0% +0.04% (p=0.000 n=8) geomean 2.504Gi 2.504Gi +0.03%

Jake Bailey (jakebailey) · 2026-10-19T23:10:41Z

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

typescript-automation · 2026-10-19T23:10:46Z

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

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

typescript-automation · 2026-10-19T23:39:40Z

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=12}
_Symbols	_115,276	_115,276	_~	_~	_~	_{p=1.000 n=12}
_Types	_79,613	_79,613	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{113,557k (± 0.06%)}	_{113,543k (± 0.04%)}	_~	_113,454k	_113,700k	_{p=0.855 n=12}
_{Memory Allocs}	_{2,212,594 (± 0.01%)}	_{2,216,866 (± 0.00%)}	_{+4,272 (+ 0.19%)}	_2,216,624	_2,217,096	_{p=0.000 n=12}
_{Config Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.041s (± 5.67%)}	_{0.039s (± 3.82%)}	_~	_0.036s	_0.043s	_{p=0.347 n=12}
_{Bind Time}	_{0.014s (±10.98%)}	_{0.013s (± 9.68%)}	_~	_0.011s	_0.017s	_{p=0.392 n=12}
_{Check Time}	_{0.468s (± 0.79%)}	_{0.463s (± 0.75%)}	_{-0.005s (- 1.09%)}	_0.456s	_0.476s	_{p=0.016 n=12}
_{Emit Time}	_{0.262s (± 1.78%)}	_{0.271s (± 2.65%)}	_{+0.009s (+ 3.47%)}	_0.252s	_0.291s	_{p=0.037 n=12}
_{Total Time}	_{0.791s (± 0.95%)}	_{0.793s (± 1.02%)}	_~	_0.773s	_0.821s	_{p=0.744 n=12}
_{angular-1 - native}
_Errors	₃	₃	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_{847,423 (± 0.05%)}	_{846,519 (± 0.08%)}	_{-904 (- 0.11%)}	_844,779	_847,818	_{p=0.039 n=12}
_Types	_{247,032 (± 0.00%)}	_{247,033 (± 0.00%)}	_~	_247,030	_247,042	_{p=0.283 n=12}
_{Memory Used}	_{596,390k (± 0.02%)}	_{596,802k (± 0.03%)}	_{+412k (+ 0.07%)}	_596,336k	_597,169k	_{p=0.000 n=12}
_{Memory Allocs}	_{13,138,365 (± 0.02%)}	_{13,196,866 (± 0.02%)}	_{+58,501 (+ 0.45%)}	_13,193,130	_13,202,238	_{p=0.000 n=12}
_{Config Time}	_{0.017s (± 1.45%)}	_{0.017s (± 1.99%)}	_~	_0.016s	_0.017s	_{p=0.193 n=12}
_{Parse Time}	_{0.220s (± 2.30%)}	_{0.220s (± 1.91%)}	_~	_0.212s	_0.236s	_{p=0.898 n=12}
_{Bind Time}	_{0.085s (±11.29%)}	_{0.079s (± 9.75%)}	_~	_0.059s	_0.096s	_{p=0.311 n=12}
_{Check Time}	_0s	_0s	_~	_~	_~	_{p=1.000 n=12}
_{Emit Time}	_{1.539s (± 1.75%)}	_{1.531s (± 1.55%)}	_~	_1.474s	_1.611s	_{p=0.504 n=12}
_{Total Time}	_{1.880s (± 1.74%)}	_{1.868s (± 1.61%)}	_~	_1.800s	_1.950s	_{p=0.541 n=12}
_{arktype - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_1,757,463	_1,757,463	_~	_~	_~	_{p=1.000 n=12}
_Types	_943,966	_943,966	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{703,722k (± 0.01%)}	_{703,878k (± 0.01%)}	_{+156k (+ 0.02%)}	_703,775k	_704,052k	_{p=0.000 n=12}
_{Memory Allocs}	_{13,291,034 (± 0.01%)}	_{13,515,196 (± 0.02%)}	_{+224,162 (+ 1.69%)}	_13,512,263	_13,525,061	_{p=0.000 n=12}
_{Config Time}	_0.002s	_0.002s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.069s (± 2.98%)}	_{0.071s (± 3.09%)}	_~	_0.067s	_0.077s	_{p=0.557 n=12}
_{Bind Time}	_{0.020s (± 5.29%)}	_{0.020s (± 5.64%)}	_~	_0.018s	_0.023s	_{p=0.906 n=12}
_{Check Time}	_{2.068s (± 0.56%)}	_{2.075s (± 0.43%)}	_~	_2.054s	_2.104s	_{p=0.235 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{2.201s (± 0.53%)}	_{2.212s (± 0.39%)}	_~	_2.194s	_2.237s	_{p=0.124 n=12}
_{mui-docs - native}
_Errors	_11,405	_11,405	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_4,331,983	_4,331,983	_~	_~	_~	_{p=1.000 n=12}
_Types	_1,370,520	_1,370,520	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{2,624,615k (± 0.05%)}	_{2,625,673k (± 0.04%)}	_~	_2,622,931k	_2,627,637k	_{p=0.242 n=12}
_{Memory Allocs}	_{27,706,524 (± 0.05%)}	_{27,755,652 (± 0.07%)}	_{+49,128 (+ 0.18%)}	_27,717,138	_27,805,863	_{p=0.000 n=12}
_{Config Time}	_{0.017s (± 1.07%)}	_{0.017s (± 1.70%)}	_~	_0.016s	_0.017s	_{p=0.590 n=12}
_{Parse Time}	_{0.468s (± 2.35%)}	_{0.471s (± 2.04%)}	_~	_0.439s	_0.494s	_{p=0.832 n=12}
_{Bind Time}	_0.002s	_{0.002s (±24.21%)}	_~	_0.002s	_0.005s	_{p=1.000 n=12}
_{Check Time}	_{7.248s (± 0.40%)}	_{7.190s (± 0.62%)}	_{-0.058s (- 0.80%)}	_7.138s	_7.371s	_{p=0.003 n=12}
_{Emit Time}	_{0.563s (± 9.91%)}	_{0.556s (±12.47%)}	_~	_0.414s	_0.662s	_{p=0.855 n=12}
_{Total Time}	_{9.058s (± 0.32%)}	_{8.986s (± 0.58%)}	_{-0.072s (- 0.79%)}	_8.794s	_9.075s	_{p=0.012 n=12}
_{sentry - native}
_Errors	₂	₂	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_7,459,653	_7,459,653	_~	_~	_~	_{p=1.000 n=12}
_Types	_2,647,172	_2,647,172	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{3,803,318k (± 0.03%)}	_{3,805,152k (± 0.02%)}	_{+1,833k (+ 0.05%)}	_3,803,702k	_3,806,861k	_{p=0.009 n=12}
_{Memory Allocs}	_{77,159,402 (± 0.09%)}	_{77,407,594 (± 0.08%)}	_{+248,192 (+ 0.32%)}	_77,159,567	_77,581,993	_{p=0.000 n=12}
_{Config Time}	_{0.060s (± 0.41%)}	_{0.060s (± 0.47%)}	_~	_0.060s	_0.061s	_{p=1.000 n=12}
_{Parse Time}	_{1.021s (± 1.79%)}	_{1.001s (± 2.80%)}	_~	_0.952s	_1.104s	_{p=0.062 n=12}
_{Bind Time}	_{0.324s (±13.05%)}	_{0.362s (±10.79%)}	_~	_0.267s	_0.451s	_{p=0.139 n=12}
_{Check Time}	_{14.958s (± 0.78%)}	_{14.787s (± 0.47%)}	_{-0.171s (- 1.14%)}	_14.657s	_15.023s	_{p=0.012 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{16.443s (± 0.65%)}	_{16.293s (± 0.48%)}	_{-0.150s (- 0.91%)}	_16.128s	_16.594s	_{p=0.017 n=12}
_{social-app - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_2,568,629	_2,568,629	_~	_~	_~	_{p=1.000 n=12}
_Types	_1,163,035	_1,163,035	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{1,213,017k (± 0.01%)}	_{1,213,026k (± 0.01%)}	_~	_1,212,644k	_1,213,526k	_{p=0.977 n=12}
_{Memory Allocs}	_{13,980,169 (± 0.13%)}	_{14,004,998 (± 0.13%)}	_~	_13,955,487	_14,076,952	_{p=0.060 n=12}
_{Config Time}	_{0.017s (± 1.65%)}	_0.017s	_~	_~	_~	_{p=0.217 n=12}
_{Parse Time}	_{0.349s (± 1.96%)}	_{0.349s (± 2.13%)}	_~	_0.325s	_0.374s	_{p=0.966 n=12}
_{Bind Time}	_{0.082s (±13.78%)}	_{0.081s (±14.36%)}	_~	_0.070s	_0.139s	_{p=0.898 n=12}
_{Check Time}	_{3.626s (± 0.46%)}	_{3.557s (± 0.36%)}	_{-0.069s (- 1.90%)}	_3.520s	_3.586s	_{p=0.000 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{4.098s (± 0.59%)}	_{4.026s (± 0.42%)}	_{-0.072s (- 1.76%)}	_3.976s	_4.070s	_{p=0.000 n=12}
_{strada-build-src - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_1,388,680	_1,388,680	_~	_~	_~	_{p=1.000 n=12}
_Types	_441,862	_441,862	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{1,312,271k (± 0.64%)}	_{1,310,666k (± 0.54%)}	_~	_1,291,153k	_1,330,310k	_{p=0.977 n=12}
_{Memory Allocs}	_{78,193,067 (± 0.09%)}	_{78,240,399 (± 0.13%)}	_~	_77,902,734	_78,423,805	_{p=0.198 n=12}
_{Config Time}	_{0.004s (±11.30%)}	_{0.005s (±18.62%)}	_~	_0.004s	_0.009s	_{p=0.169 n=12}
_{Parse Time}	_{0.306s (± 3.17%)}	_{0.311s (± 2.07%)}	_~	_0.295s	_0.329s	_{p=0.541 n=12}
_{Bind Time}	_{0.000s (±167.50%)}	_{0.000s (±217.90%)}	_~	_0.000s	_0.001s	_{p=0.739 n=12}
_{Check Time}	_{2.014s (± 0.65%)}	_{1.996s (± 0.68%)}	_{-0.018s (- 0.89%)}	_1.963s	_2.031s	_{p=0.034 n=12}
_{Emit Time}	_{0.354s (± 2.89%)}	_{0.358s (± 3.46%)}	_~	_0.330s	_0.401s	_{p=0.369 n=12}
_{Total Time}	_{23.856s (± 0.54%)}	_{23.801s (± 0.63%)}	_~	_23.457s	_24.115s	_{p=0.590 n=12}
_{strada-compiler - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_334,953	_334,953	_~	_~	_~	_{p=1.000 n=12}
_Types	_197,616	_197,616	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{247,523k (± 0.03%)}	_{247,642k (± 0.03%)}	_{+119k (+ 0.05%)}	_247,432k	_247,795k	_{p=0.028 n=12}
_{Memory Allocs}	_{4,329,877 (± 0.01%)}	_{4,334,872 (± 0.02%)}	_{+4,994 (+ 0.12%)}	_4,333,250	_4,336,444	_{p=0.000 n=12}
_{Config Time}	_0.001s	_0.001s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.115s (± 5.15%)}	_{0.111s (± 4.13%)}	_~	_0.100s	_0.122s	_{p=0.202 n=12}
_{Bind Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Check Time}	_{0.966s (± 0.74%)}	_{0.956s (± 0.61%)}	_~	_0.938s	_0.967s	_{p=0.066 n=12}
_{Emit Time}	_{0.149s (± 5.90%)}	_{0.144s (± 8.93%)}	_~	_0.101s	_0.164s	_{p=0.680 n=12}
_{Total Time}	_{1.287s (± 1.05%)}	_{1.268s (± 1.11%)}	_{-0.019s (- 1.50%)}	_1.222s	_1.307s	_{p=0.034 n=12}
_{t3code-server - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_11,588,087	_11,588,087	_~	_~	_~	_{p=1.000 n=12}
_Types	_3,062,556	_3,062,556	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{3,946,155k (± 0.02%)}	_{3,947,673k (± 0.02%)}	_{+1,518k (+ 0.04%)}	_3,945,875k	_3,949,092k	_{p=0.010 n=12}
_{Memory Allocs}	_{41,560,483 (± 0.05%)}	_{42,056,076 (± 0.03%)}	_{+495,593 (+ 1.19%)}	_42,018,726	_42,082,165	_{p=0.000 n=12}
_{Config Time}	_0.006s	_0.006s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.571s (± 2.71%)}	_{0.552s (± 2.33%)}	_~	_0.522s	_0.582s	_{p=0.066 n=12}
_{Bind Time}	_{0.177s (±13.21%)}	_{0.196s (±15.50%)}	_~	_0.150s	_0.277s	_{p=0.522 n=12}
_{Check Time}	_{18.606s (± 0.19%)}	_{17.640s (± 0.24%)}	_{🟩-0.966s (- 5.19%)}	_17.499s	_17.745s	_{p=0.000 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{19.377s (± 0.14%)}	_{18.413s (± 0.23%)}	_{🟩-0.963s (- 4.97%)}	_18.238s	_18.494s	_{p=0.000 n=12}
_{ts-pre-modules - native}
_Errors	₈₇	₈₇	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_303,834	_303,834	_~	_~	_~	_{p=1.000 n=12}
_Types	_181,663	_181,663	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{215,259k (± 0.02%)}	_{215,285k (± 0.03%)}	_~	_215,135k	_215,417k	_{p=0.410 n=12}
_{Memory Allocs}	_{1,401,544 (± 0.01%)}	_{1,407,609 (± 0.01%)}	_{+6,065 (+ 0.43%)}	_1,407,209	_1,408,179	_{p=0.000 n=12}
_{Config Time}	_{0.000s (±217.90%)}	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.095s (± 4.23%)}	_{0.095s (± 4.70%)}	_~	_0.086s	_0.108s	_{p=0.831 n=12}
_{Bind Time}	_{0.042s (± 7.76%)}	_{0.043s (± 6.50%)}	_~	_0.038s	_0.052s	_{p=0.721 n=12}
_{Check Time}	_{0.744s (± 0.71%)}	_{0.737s (± 0.79%)}	_~	_0.724s	_0.754s	_{p=0.085 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{0.896s (± 0.40%)}	_{0.890s (± 0.62%)}	_~	_0.878s	_0.906s	_{p=0.116 n=12}
_{vscode - native}
_Errors	₃₉₈	₃₉₈	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_12,486,816	_12,486,816	_~	_~	_~	_{p=1.000 n=12}
_Types	_4,082,751	_4,082,751	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{5,850,758k (± 0.02%)}	_{5,851,575k (± 0.02%)}	_~	_5,848,899k	_5,854,596k	_{p=0.266 n=12}
_{Memory Allocs}	_{59,542,300 (± 0.01%)}	_{59,940,991 (± 0.01%)}	_{+398,690 (+ 0.67%)}	_59,933,544	_59,953,057	_{p=0.000 n=12}
_{Config Time}	_{0.076s (± 0.50%)}	_{0.076s (± 0.41%)}	_~	_0.075s	_0.076s	_{p=0.278 n=12}
_{Parse Time}	_{1.859s (± 2.95%)}	_{1.867s (± 2.48%)}	_~	_1.750s	_1.970s	_{p=0.920 n=12}
_{Bind Time}	_{0.652s (±17.20%)}	_{0.624s (±16.55%)}	_~	_0.512s	_0.912s	_{p=0.899 n=12}
_{Check Time}	_{16.646s (± 1.20%)}	_{14.716s (± 0.84%)}	_{🟩-1.931s (-11.60%)}	_14.383s	_14.892s	_{p=0.000 n=12}
_{Emit Time}	_{5.575s (± 3.90%)}	_{5.601s (± 4.77%)}	_~	_4.831s	_6.520s	_{p=1.000 n=12}
_{Total Time}	_{24.893s (± 0.61%)}	_{22.967s (± 0.97%)}	_{🟩-1.926s (- 7.74%)}	_22.321s	_23.762s	_{p=0.000 n=12}
_{webpack - native}
_Errors	₅₉₈	₅₉₈	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_1,343,495	_1,343,495	_~	_~	_~	_{p=1.000 n=12}
_Types	_651,491	_651,491	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{855,319k (± 0.02%)}	_{855,411k (± 0.02%)}	_~	_854,863k	_855,814k	_{p=0.514 n=12}
_{Memory Allocs}	_{6,769,540 (± 0.02%)}	_{6,785,782 (± 0.03%)}	_{+16,241 (+ 0.24%)}	_6,782,520	_6,792,218	_{p=0.000 n=12}
_{Config Time}	_0.009s	_0.009s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.307s (± 3.92%)}	_{0.310s (± 3.69%)}	_~	_0.280s	_0.332s	_{p=0.640 n=12}
_{Bind Time}	_{0.073s (± 4.05%)}	_{0.075s (± 4.37%)}	_~	_0.068s	_0.088s	_{p=0.190 n=12}
_{Check Time}	_{2.783s (± 0.30%)}	_{2.704s (± 0.33%)}	_{-0.080s (- 2.86%)}	_2.687s	_2.742s	_{p=0.000 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{3.209s (± 0.47%)}	_{3.134s (± 0.36%)}	_{-0.075s (- 2.34%)}	_3.099s	_3.153s	_{p=0.000 n=12}
_{xstate-main - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_1,060,810	_1,060,810	_~	_~	_~	_{p=1.000 n=12}
_Types	_389,671	_389,671	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{471,794k (± 0.02%)}	_{472,713k (± 0.03%)}	_{+919k (+ 0.19%)}	_472,223k	_473,173k	_{p=0.000 n=12}
_{Memory Allocs}	_{4,217,940 (± 0.11%)}	_{4,245,999 (± 0.08%)}	_{+28,059 (+ 0.67%)}	_4,235,542	_4,257,008	_{p=0.000 n=12}
_{Config Time}	_0.002s	_0.002s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.106s (± 3.84%)}	_{0.105s (± 2.62%)}	_~	_0.098s	_0.111s	_{p=0.966 n=12}
_{Bind Time}	_{0.035s (±14.42%)}	_{0.035s (±13.13%)}	_~	_0.026s	_0.050s	_{p=0.767 n=12}
_{Check Time}	_{0.911s (± 0.91%)}	_{0.911s (± 0.78%)}	_~	_0.900s	_0.937s	_{p=0.943 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{1.062s (± 0.94%)}	_{1.062s (± 0.61%)}	_~	_1.043s	_1.081s	_{p=0.701 n=12}

System info unknown

Hosts

native

Scenarios

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

_Benchmark	_Name	_Iterations
_Current	_pr	₁₂
_Baseline	_baseline	₁₂

Developer Information:

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frivanco97-cmd · 2026-10-20T00:49:11Z

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typescript-automation Bot assigned Jake Bailey (jakebailey) Oct 19, 2026

typescript-automation Bot added Author: Team For Uncommitted Bug PR for untriaged, rejected, closed or missing bug labels Oct 19, 2026

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Memoize repeated inference walks - #64880

Memoize repeated inference walks#64880
Jake Bailey (jakebailey) wants to merge 1 commit into
microsoft:mainfrom
jakebailey:perf/inference-walk-memo

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