Avoid re-sorting spread members from scratch by jakebailey · Pull Request #64945 · microsoft/TypeScript

Jake Bailey (jakebailey) · 2026-10-23T22:30:45Z

this is a bit sloppy, but I want to run perf

Every object spread builds a member table and sorts its properties by declaration. Chains such as `{ ...a, x, ...b, y }` re-sort the whole accumulated set at each step, and each comparison walked the parent chain of both declarations to find their files. On mui-docs this sort was about 6% of single-checker time. Compute each symbol's sort key once, sort already-sorted input and two sorted runs in linear time, and have spreads list their members in the order of the two (already sorted) property lists. The sorted result is the same; only the work to get there changes. Single-checker check time on mui-docs, five runs each: before 9.004s 9.103s 9.114s 9.157s 9.207s after 8.826s 8.879s 8.940s 8.943s 9.032s │ old.txt │ new.txt │ │ sec/op │ sec/op vs base │ Tsc/bluesky 2.385 ± 5% 2.350 ± 7% ~ (p=0.394 n=6) Tsc/sentry 10.11 ± 3% 10.07 ± 2% ~ (p=0.699 n=6) Tsc/t3code-server 8.042 ± 4% 7.920 ± 2% ~ (p=0.240 n=6) Tsc/mui-docs 6.165 ± 2% 6.105 ± 3% ~ (p=0.394 n=6) geomean 5.880 5.816 -1.09% │ old.txt │ new.txt │ │ rss-B │ rss-B vs base │ Tsc/bluesky 1.175Gi ± 3% 1.176Gi ± 1% ~ (p=1.000 n=6) Tsc/sentry 3.365Gi ± 4% 3.438Gi ± 6% ~ (p=0.132 n=6) Tsc/t3code-server 2.694Gi ± 8% 2.868Gi ± 7% ~ (p=0.485 n=6) Tsc/mui-docs 2.290Gi ± 3% 2.337Gi ± 7% ~ (p=0.589 n=6) geomean 2.222Gi 2.281Gi +2.66% │ old.txt │ new.txt │ │ heap-B │ heap-B vs base │ Tsc/bluesky 915.3Mi ± 0% 915.1Mi ± 0% ~ (p=0.180 n=6) Tsc/sentry 2.481Gi ± 0% 2.482Gi ± 0% ~ (p=0.065 n=6) Tsc/t3code-server 2.178Gi ± 0% 2.179Gi ± 0% ~ (p=0.310 n=6) Tsc/mui-docs 1.732Gi ± 0% 1.732Gi ± 0% ~ (p=0.240 n=6) geomean 1.701Gi 1.701Gi +0.02%

Jake Bailey (jakebailey) · 2026-10-23T22:31:22Z

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

typescript-automation · 2026-10-23T22:31:28Z

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

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

typescript-automation · 2026-10-23T23:03:58Z

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	_88,466	_88,466	_~	_~	_~	_{p=1.000 n=12}
_Types	_79,607	_79,607	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{109,177k (± 0.06%)}	_{109,349k (± 0.06%)}	_{+172k (+ 0.16%)}	_109,228k	_109,572k	_{p=0.001 n=12}
_{Memory Allocs}	_{2,196,680 (± 0.01%)}	_{2,196,693 (± 0.00%)}	_~	_2,196,435	_2,197,031	_{p=0.755 n=12}
_{Config Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.039s (± 2.80%)}	_{0.040s (± 3.25%)}	_~	_0.036s	_0.043s	_{p=0.121 n=12}
_{Bind Time}	_{0.014s (±10.31%)}	_{0.014s (±10.10%)}	_~	_0.011s	_0.018s	_{p=0.923 n=12}
_{Check Time}	_{0.476s (± 0.53%)}	_{0.480s (± 0.62%)}	_{+0.004s (+ 0.88%)}	_0.473s	_0.488s	_{p=0.031 n=12}
_{Emit Time}	_{0.267s (± 2.21%)}	_{0.268s (± 2.70%)}	_~	_0.252s	_0.284s	_{p=0.541 n=12}
_{Total Time}	_{0.802s (± 1.06%)}	_{0.810s (± 0.91%)}	_~	_0.793s	_0.830s	_{p=0.147 n=12}
_{angular-1 - native}
_Errors	₃	₃	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_{586,579 (± 0.01%)}	_{586,600 (± 0.02%)}	_~	_586,350	_586,959	_{p=0.887 n=12}
_Types	_{241,723 (± 0.00%)}	_{241,723 (± 0.00%)}	_~	_241,721	_241,726	_{p=0.534 n=12}
_{Memory Used}	_{551,241k (± 0.02%)}	_{551,502k (± 0.03%)}	_{+261k (+ 0.05%)}	_551,056k	_551,982k	_{p=0.006 n=12}
_{Memory Allocs}	_{13,073,960 (± 0.05%)}	_{13,081,419 (± 0.07%)}	_{+7,459 (+ 0.06%)}	_13,071,731	_13,118,577	_{p=0.008 n=12}
_{Config Time}	_{0.017s (± 1.70%)}	_{0.017s (± 1.45%)}	_~	_0.016s	_0.017s	_{p=1.000 n=12}
_{Parse Time}	_{0.224s (± 3.11%)}	_{0.222s (± 2.90%)}	_~	_0.210s	_0.240s	_{p=0.723 n=12}
_{Bind Time}	_{0.081s (±13.38%)}	_{0.080s (±13.79%)}	_~	_0.058s	_0.113s	_{p=0.943 n=12}
_{Check Time}	_0s	_0s	_~	_~	_~	_{p=1.000 n=12}
_{Emit Time}	_{1.499s (± 1.64%)}	_{1.510s (± 1.68%)}	_~	_1.443s	_1.562s	_{p=0.193 n=12}
_{Total Time}	_{1.840s (± 1.65%)}	_{1.847s (± 1.54%)}	_~	_1.768s	_1.908s	_{p=0.541 n=12}
_{arktype - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_685,943	_685,943	_~	_~	_~	_{p=1.000 n=12}
_Types	_939,496	_939,496	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{533,313k (± 0.01%)}	_{533,258k (± 0.01%)}	_~	_533,102k	_533,426k	_{p=0.378 n=12}
_{Memory Allocs}	_{12,772,138 (± 0.02%)}	_{12,776,917 (± 0.01%)}	_{+4,779 (+ 0.04%)}	_12,774,343	_12,784,798	_{p=0.013 n=12}
_{Config Time}	_0.002s	_0.002s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.072s (± 3.73%)}	_{0.069s (± 4.04%)}	_~	_0.064s	_0.077s	_{p=0.102 n=12}
_{Bind Time}	_{0.020s (± 8.07%)}	_{0.023s (±14.64%)}	_~	_0.018s	_0.033s	_{p=0.342 n=12}
_{Check Time}	_{1.833s (± 0.65%)}	_{1.830s (± 0.77%)}	_~	_1.797s	_1.859s	_{p=0.898 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{1.973s (± 0.58%)}	_{1.974s (± 0.30%)}	_~	_1.954s	_1.986s	_{p=0.854 n=12}
_{mui-docs - native}
_Errors	_11,405	_11,405	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_3,855,253	_3,855,253	_~	_~	_~	_{p=1.000 n=12}
_Types	_1,370,331	_1,370,331	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{2,309,374k (± 0.07%)}	_{2,308,295k (± 0.04%)}	_~	_2,305,280k	_2,310,594k	_{p=0.219 n=12}
_{Memory Allocs}	_{27,147,272 (± 0.09%)}	_{27,324,714 (± 0.05%)}	_{+177,442 (+ 0.65%)}	_27,296,120	_27,359,416	_{p=0.000 n=12}
_{Config Time}	_0.017s	_{0.017s (± 1.86%)}	_~	_0.016s	_0.017s	_{p=0.093 n=12}
_{Parse Time}	_{0.466s (± 4.14%)}	_{0.472s (± 2.37%)}	_~	_0.446s	_0.504s	_{p=0.876 n=12}
_{Bind Time}	_{0.002s (±24.21%)}	_{0.003s (±29.38%)}	_~	_0.002s	_0.005s	_{p=1.000 n=12}
_{Check Time}	_{6.599s (± 0.65%)}	_{6.540s (± 0.76%)}	_{-0.059s (- 0.90%)}	_6.482s	_6.671s	_{p=0.008 n=12}
_{Emit Time}	_{0.470s (± 6.96%)}	_{0.452s (± 3.07%)}	_~	_0.413s	_0.466s	_{p=0.356 n=12}
_{Total Time}	_{8.310s (± 0.45%)}	_{8.246s (± 0.57%)}	_{-0.065s (- 0.78%)}	_8.173s	_8.371s	_{p=0.023 n=12}
_{sentry - native}
_Errors	₂	₂	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_4,793,345	_4,793,345	_~	_~	_~	_{p=1.000 n=12}
_Types	_2,607,067	_2,607,067	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{3,206,794k (± 0.03%)}	_{3,206,737k (± 0.04%)}	_~	_3,204,974k	_3,211,346k	_{p=0.932 n=12}
_{Memory Allocs}	_{75,236,033 (± 0.10%)}	_{75,664,356 (± 0.10%)}	_{+428,322 (+ 0.57%)}	_75,408,655	_75,797,761	_{p=0.000 n=12}
_{Config Time}	_{0.060s (± 0.54%)}	_{0.061s (± 0.53%)}	_~	_0.060s	_0.061s	_{p=1.000 n=12}
_{Parse Time}	_{1.010s (± 1.97%)}	_{1.011s (± 1.85%)}	_~	_0.977s	_1.064s	_{p=0.898 n=12}
_{Bind Time}	_{0.328s (±12.44%)}	_{0.319s (± 9.20%)}	_~	_0.265s	_0.410s	_{p=0.854 n=12}
_{Check Time}	_{13.712s (± 0.69%)}	_{13.714s (± 0.54%)}	_~	_13.598s	_13.953s	_{p=0.580 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{15.191s (± 0.68%)}	_{15.187s (± 0.53%)}	_~	_15.075s	_15.498s	_{p=0.640 n=12}
_{social-app - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_1,883,343	_1,883,343	_~	_~	_~	_{p=1.000 n=12}
_Types	_1,158,474	_1,158,474	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{1,057,591k (± 0.02%)}	_{1,057,798k (± 0.02%)}	_~	_1,057,441k	_1,058,682k	_{p=0.298 n=12}
_{Memory Allocs}	_{13,572,113 (± 0.12%)}	_{13,639,629 (± 0.17%)}	_{+67,516 (+ 0.50%)}	_13,587,656	_13,712,235	_{p=0.000 n=12}
_{Config Time}	_{0.017s (± 1.65%)}	_{0.017s (± 1.43%)}	_~	_0.017s	_0.018s	_{p=1.000 n=12}
_{Parse Time}	_{0.353s (± 1.92%)}	_{0.354s (± 1.56%)}	_~	_0.344s	_0.372s	_{p=0.723 n=12}
_{Bind Time}	_{0.082s (±10.71%)}	_{0.082s (± 9.43%)}	_~	_0.073s	_0.116s	_{p=0.559 n=12}
_{Check Time}	_{3.296s (± 0.90%)}	_{3.298s (± 0.65%)}	_~	_3.223s	_3.340s	_{p=0.944 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{3.773s (± 0.56%)}	_{3.776s (± 0.37%)}	_~	_3.745s	_3.806s	_{p=0.921 n=12}
_{strada-build-src - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_1,184,988	_1,184,988	_~	_~	_~	_{p=1.000 n=12}
_Types	_438,967	_438,967	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{1,270,722k (± 0.35%)}	_{1,275,154k (± 0.50%)}	_~	_1,265,577k	_1,302,712k	_{p=0.219 n=12}
_{Memory Allocs}	_{77,389,456 (± 0.12%)}	_{77,454,770 (± 0.06%)}	_~	_77,335,269	_77,554,999	_{p=0.198 n=12}
_{Config Time}	_{0.004s (± 9.45%)}	_{0.004s (±15.55%)}	_~	_0.002s	_0.005s	_{p=0.971 n=12}
_{Parse Time}	_{0.310s (± 2.69%)}	_{0.311s (± 1.74%)}	_~	_0.300s	_0.325s	_{p=0.522 n=12}
_{Bind Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Check Time}	_{1.949s (± 0.70%)}	_{1.958s (± 0.46%)}	_~	_1.941s	_1.987s	_{p=0.235 n=12}
_{Emit Time}	_{0.372s (± 3.60%)}	_{0.374s (± 2.99%)}	_~	_0.350s	_0.409s	_{p=0.810 n=12}
_{Total Time}	_{23.496s (± 0.59%)}	_{23.478s (± 0.54%)}	_~	_23.184s	_23.849s	_{p=0.671 n=12}
_{strada-compiler - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_263,525	_263,525	_~	_~	_~	_{p=1.000 n=12}
_Types	_196,118	_196,118	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{236,042k (± 0.04%)}	_{236,357k (± 0.02%)}	_{+315k (+ 0.13%)}	_236,233k	_236,486k	_{p=0.000 n=12}
_{Memory Allocs}	_{4,287,460 (± 0.01%)}	_{4,288,179 (± 0.00%)}	_~	_4,287,678	_4,288,637	_{p=0.060 n=12}
_{Config Time}	_0.001s	_0.001s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.110s (± 5.31%)}	_{0.114s (± 4.91%)}	_~	_0.102s	_0.127s	_{p=0.223 n=12}
_{Bind Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Check Time}	_{0.942s (± 0.55%)}	_{0.950s (± 0.48%)}	_{+0.008s (+ 0.89%)}	_0.938s	_0.962s	_{p=0.016 n=12}
_{Emit Time}	_{0.150s (± 3.56%)}	_{0.145s (± 4.26%)}	_~	_0.120s	_0.158s	_{p=0.091 n=12}
_{Total Time}	_{1.260s (± 0.59%)}	_{1.264s (± 0.76%)}	_~	_1.230s	_1.283s	_{p=0.272 n=12}
_{t3code-server - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_4,350,705	_4,350,705	_~	_~	_~	_{p=1.000 n=12}
_Types	_3,040,691	_3,040,691	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{2,610,673k (± 0.02%)}	_{2,611,666k (± 0.04%)}	_~	_2,609,688k	_2,615,684k	_{p=0.178 n=12}
_{Memory Allocs}	_{37,331,793 (± 0.03%)}	_{37,450,881 (± 0.05%)}	_{+119,088 (+ 0.32%)}	_37,402,845	_37,487,172	_{p=0.000 n=12}
_{Config Time}	_0.006s	_0.006s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.566s (± 2.55%)}	_{0.571s (± 3.08%)}	_~	_0.525s	_0.613s	_{p=0.486 n=12}
_{Bind Time}	_{0.178s (±10.38%)}	_{0.188s (±14.42%)}	_~	_0.148s	_0.270s	_{p=0.640 n=12}
_{Check Time}	_{16.341s (± 0.34%)}	_{16.515s (± 0.44%)}	_{+0.174s (+ 1.06%)}	_16.329s	_16.692s	_{p=0.001 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{17.109s (± 0.31%)}	_{17.297s (± 0.44%)}	_{+0.188s (+ 1.10%)}	_17.079s	_17.478s	_{p=0.000 n=12}
_{ts-pre-modules - native}
_Errors	₈₇	₈₇	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_231,636	_231,636	_~	_~	_~	_{p=1.000 n=12}
_Types	_181,196	_181,196	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{203,549k (± 0.02%)}	_{203,819k (± 0.01%)}	_{+270k (+ 0.13%)}	_203,763k	_203,914k	_{p=0.000 n=12}
_{Memory Allocs}	_{1,358,393 (± 0.02%)}	_{1,358,890 (± 0.01%)}	_{+497 (+ 0.04%)}	_1,358,303	_1,359,382	_{p=0.007 n=12}
_{Config Time}	_{0.000s (±217.90%)}	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.097s (± 3.90%)}	_{0.098s (± 5.08%)}	_~	_0.087s	_0.111s	_{p=0.485 n=12}
_{Bind Time}	_{0.042s (± 6.80%)}	_{0.041s (± 8.00%)}	_~	_0.032s	_0.048s	_{p=0.943 n=12}
_{Check Time}	_{0.721s (± 1.14%)}	_{0.723s (± 0.63%)}	_~	_0.715s	_0.735s	_{p=0.258 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{0.874s (± 0.94%)}	_{0.878s (± 0.79%)}	_~	_0.860s	_0.899s	_{p=0.385 n=12}
_{vscode - native}
_Errors	₁₀	₁₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_7,153,364	_7,153,364	_~	_~	_~	_{p=1.000 n=12}
_Types	_4,210,651	_4,210,651	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{5,339,823k (± 0.02%)}	_{5,338,885k (± 0.01%)}	_~	_5,338,082k	_5,339,940k	_{p=0.060 n=12}
_{Memory Allocs}	_{61,819,850 (± 0.01%)}	_{62,062,380 (± 0.05%)}	_{+242,531 (+ 0.39%)}	_62,042,142	_62,201,118	_{p=0.000 n=12}
_{Config Time}	_{0.079s (± 0.39%)}	_{0.078s (± 0.23%)}	_{-0.001s (- 0.74%)}	_0.078s	_0.079s	_{p=0.009 n=12}
_{Parse Time}	_{1.922s (± 2.04%)}	_{1.950s (± 2.30%)}	_~	_1.861s	_2.069s	_{p=0.224 n=12}
_{Bind Time}	_{0.762s (±14.89%)}	_{0.705s (±14.37%)}	_~	_0.548s	_1.001s	_{p=0.410 n=12}
_{Check Time}	_{15.015s (± 1.09%)}	_{15.175s (± 1.19%)}	_~	_14.782s	_15.482s	_{p=0.098 n=12}
_{Emit Time}	_{5.920s (± 9.26%)}	_{5.576s (± 8.83%)}	_~	_4.944s	_6.877s	_{p=0.551 n=12}
_{Total Time}	_{23.782s (± 2.04%)}	_{23.567s (± 1.82%)}	_~	_22.917s	_24.746s	_{p=0.932 n=12}
_{webpack - native}
_Errors	₆₀₂	₆₀₂	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_916,593	_916,593	_~	_~	_~	_{p=1.000 n=12}
_Types	_643,793	_643,793	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{765,225k (± 0.02%)}	_{765,331k (± 0.02%)}	_~	_764,886k	_765,615k	_{p=0.101 n=12}
_{Memory Allocs}	_{6,540,306 (± 0.02%)}	_{6,543,682 (± 0.02%)}	_{+3,376 (+ 0.05%)}	_6,541,218	_6,547,527	_{p=0.001 n=12}
_{Config Time}	_0.009s	_0.009s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.325s (± 1.96%)}	_{0.309s (± 4.80%)}	_~	_0.266s	_0.339s	_{p=0.075 n=12}
_{Bind Time}	_{0.080s (± 5.92%)}	_{0.096s (±13.97%)}	_~	_0.072s	_0.127s	_{p=0.164 n=12}
_{Check Time}	_{2.976s (± 0.30%)}	_{2.982s (± 0.38%)}	_~	_2.946s	_3.006s	_{p=0.213 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{3.430s (± 0.46%)}	_{3.436s (± 0.46%)}	_~	_3.381s	_3.484s	_{p=0.541 n=12}
_{xstate-main - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_640,566	_640,566	_~	_~	_~	_{p=1.000 n=12}
_Types	_388,220	_388,220	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{398,636k (± 0.02%)}	_{398,851k (± 0.04%)}	_{+214k (+ 0.05%)}	_398,551k	_399,296k	_{p=0.033 n=12}
_{Memory Allocs}	_{3,994,232 (± 0.10%)}	_{4,001,677 (± 0.14%)}	_~	_3,987,241	_4,019,387	_{p=0.052 n=12}
_{Config Time}	_0.002s	_0.002s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.107s (± 3.73%)}	_{0.105s (± 3.51%)}	_~	_0.097s	_0.117s	_{p=0.520 n=12}
_{Bind Time}	_{0.032s (±14.10%)}	_{0.039s (±14.31%)}	_~	_0.026s	_0.056s	_{p=0.056 n=12}
_{Check Time}	_{0.791s (± 0.57%)}	_{0.800s (± 0.70%)}	_{+0.008s (+ 1.06%)}	_0.786s	_0.819s	_{p=0.021 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{0.939s (± 0.64%)}	_{0.955s (± 1.14%)}	_{+0.016s (+ 1.69%)}	_0.927s	_0.986s	_{p=0.018 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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Jake Bailey (jakebailey) · 2026-10-23T23:11:12Z

Yeah no

typescript-automation Bot assigned Jake Bailey (jakebailey) Oct 23, 2026

typescript-automation Bot added Author: Team For Uncommitted Bug PR for untriaged, rejected, closed or missing bug labels Oct 23, 2026

Jake Bailey (jakebailey) closed this Oct 23, 2026

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Avoid re-sorting spread members from scratch - #64945

Avoid re-sorting spread members from scratch#64945
Jake Bailey (jakebailey) wants to merge 1 commit into
microsoft:mainfrom
jakebailey:perf/incremental-spread-sort

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