Remove AST node self pointers

[Jake Bailey (jakebailey)]

I feel less bad about this now with AST code gen limiting the unsafe to generated code only

[Jake Bailey (jakebailey)]

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

[typescript-automation]

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

Command	Status	Results
perf test this faster	✅ Started	👀 Results

[typescript-automation]

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	115,480	115,480	~	~	~	p=1.000 n=12
Types	96,945	96,945	~	~	~	p=1.000 n=12
Memory Used	149,289k (± 0.47%)	141,239k (± 0.49%)	🟩-8,050k (- 5.39%)	139,594k	143,281k	p=0.000 n=12
Memory Allocs	2,247,476 (± 0.00%)	2,247,553 (± 0.00%)	~	2,247,283	2,247,792	p=0.347 n=12
Config Time	0.000s	0.000s	~	~	~	p=1.000 n=12
Parse Time	0.042s (± 4.25%)	0.037s (± 3.32%)	🟩-0.004s (-10.22%)	0.034s	0.040s	p=0.000 n=12
Bind Time	0.011s (± 6.71%)	0.014s (±13.59%)	🔻+0.003s (+30.53%)	0.011s	0.020s	p=0.000 n=12
Check Time	0.508s (± 0.55%)	0.532s (± 0.88%)	🔻+0.024s (+ 4.73%)	0.520s	0.547s	p=0.000 n=12
Emit Time	0.267s (± 1.53%)	0.281s (± 1.81%)	🔻+0.014s (+ 5.25%)	0.266s	0.295s	p=0.000 n=12
Total Time	0.834s (± 0.69%)	0.871s (± 0.86%)	🔻+0.037s (+ 4.44%)	0.853s	0.897s	p=0.000 n=12
angular-1 - native
Errors	3	3	~	~	~	p=1.000 n=12
Symbols	847,149 (± 0.09%)	846,284 (± 0.13%)	~	843,929	848,804	p=0.266 n=12
Types	249,914 (± 0.00%)	249,912 (± 0.00%)	~	249,911	249,914	p=0.604 n=12
Memory Used	793,255k (± 0.07%)	735,594k (± 0.04%)	🟩-57,662k (- 7.27%)	735,053k	736,312k	p=0.000 n=12
Memory Allocs	13,042,458 (± 0.06%)	13,036,083 (± 0.03%)	~	13,030,096	13,048,304	p=0.291 n=12
Config Time	0.016s	0.016s	~	~	~	p=1.000 n=12
Parse Time	0.277s (± 1.61%)	0.268s (± 1.96%)	🟩-0.009s (- 3.28%)	0.254s	0.282s	p=0.009 n=12
Bind Time	0.062s (± 6.38%)	0.070s (± 9.00%)	🔻+0.009s (+13.78%)	0.065s	0.094s	p=0.000 n=12
Check Time	0s	0s	~	~	~	p=1.000 n=12
Emit Time	1.639s (± 0.76%)	1.688s (± 1.67%)	+0.050s (+ 3.02%)	1.652s	1.796s	p=0.000 n=12
Total Time	2.010s (± 0.79%)	2.059s (± 1.78%)	+0.049s (+ 2.41%)	2.011s	2.198s	p=0.002 n=12
mui-docs - native
Errors	11,275 (± 0.04%)	11,277 (± 0.04%)	~	11,258	11,282	p=0.199 n=12
Symbols	4,313,827	4,313,827	~	~	~	p=1.000 n=12
Types	1,641,392	1,641,392	~	~	~	p=1.000 n=12
Memory Used	4,907,708k (± 0.02%)	4,857,606k (± 0.03%)	-50,103k (- 1.02%)	4,853,461k	4,860,566k	p=0.000 n=12
Memory Allocs	50,069,481 (± 0.03%)	50,082,521 (± 0.03%)	~	50,035,457	50,119,903	p=0.291 n=12
Config Time	0.016s (± 2.08%)	0.015s (± 2.10%)	~	0.015s	0.016s	p=0.684 n=12
Parse Time	0.551s (± 1.92%)	0.539s (± 2.32%)	~	0.501s	0.563s	p=0.213 n=12
Bind Time	0.002s	0.002s (± 8.72%)	~	0.002s	0.003s	p=1.000 n=12
Check Time	17.248s (± 0.32%)	17.382s (± 0.17%)	+0.135s (+ 0.78%)	17.321s	17.457s	p=0.000 n=12
Emit Time	0.443s (± 1.65%)	0.462s (± 2.57%)	~	0.434s	0.476s	p=0.069 n=12
Total Time	18.999s (± 0.41%)	19.109s (± 0.29%)	~	18.989s	19.265s	p=0.050 n=12
self-build-src - native
Errors	0	0	~	~	~	p=1.000 n=12
Symbols	1,394,411	1,394,411	~	~	~	p=1.000 n=12
Types	443,627	443,627	~	~	~	p=1.000 n=12
Memory Used	1,638,126k (± 0.38%)	1,521,834k (± 0.32%)	🟩-116,292k (- 7.10%)	1,506,565k	1,532,739k	p=0.000 n=12
Memory Allocs	96,881,454 (± 0.05%)	96,861,156 (± 0.03%)	~	96,789,155	96,909,635	p=0.378 n=12
Config Time	0.003s (± 9.29%)	0.003s (±18.68%)	~	0.002s	0.005s	p=0.774 n=12
Parse Time	0.197s (± 2.15%)	0.189s (± 2.26%)	🟩-0.009s (- 4.36%)	0.175s	0.199s	p=0.008 n=12
Bind Time	0.000s	0.000s	~	~	~	p=1.000 n=12
Check Time	1.827s (± 0.40%)	1.961s (± 0.42%)	🔻+0.133s (+ 7.30%)	1.940s	1.986s	p=0.000 n=12
Emit Time	0.299s (± 4.64%)	0.288s (± 5.54%)	~	0.260s	0.331s	p=0.259 n=12
Total Time	25.222s (± 0.72%)	26.384s (± 0.52%)	🔻+1.162s (+ 4.61%)	26.133s	26.829s	p=0.000 n=12
self-compiler - native
Errors	0	0	~	~	~	p=1.000 n=12
Symbols	337,618	337,618	~	~	~	p=1.000 n=12
Types	198,941	198,941	~	~	~	p=1.000 n=12
Memory Used	319,618k (± 0.03%)	300,337k (± 0.02%)	🟩-19,281k (- 6.03%)	300,168k	300,578k	p=0.000 n=12
Memory Allocs	4,661,002 (± 0.01%)	4,661,087 (± 0.01%)	~	4,660,267	4,662,832	p=0.887 n=12
Config Time	0.001s	0.001s	~	~	~	p=1.000 n=12
Parse Time	0.116s (± 4.83%)	0.113s (± 4.83%)	~	0.099s	0.126s	p=0.284 n=12
Bind Time	0.000s	0.000s	~	~	~	p=1.000 n=12
Check Time	1.064s (± 0.75%)	1.137s (± 0.45%)	🔻+0.073s (+ 6.86%)	1.124s	1.153s	p=0.000 n=12
Emit Time	0.155s (± 6.83%)	0.137s (±13.19%)	~	0.105s	0.178s	p=0.164 n=12
Total Time	1.386s (± 1.00%)	1.444s (± 1.19%)	🔻+0.058s (+ 4.16%)	1.404s	1.492s	p=0.000 n=12
ts-pre-modules - native
Errors	87	87	~	~	~	p=1.000 n=12
Symbols	305,341	305,341	~	~	~	p=1.000 n=12
Types	182,038	182,038	~	~	~	p=1.000 n=12
Memory Used	277,323k (± 0.01%)	261,059k (± 0.02%)	🟩-16,264k (- 5.86%)	260,975k	261,192k	p=0.000 n=12
Memory Allocs	1,628,133 (± 0.01%)	1,627,970 (± 0.01%)	~	1,627,661	1,628,354	p=0.078 n=12
Config Time	0.000s (±146.91%)	0.000s (±146.91%)	~	0.000s	0.001s	p=1.000 n=12
Parse Time	0.102s (± 5.25%)	0.099s (± 3.52%)	~	0.091s	0.106s	p=0.369 n=12
Bind Time	0.037s (±10.48%)	0.042s (± 7.56%)	~	0.037s	0.054s	p=0.080 n=12
Check Time	0.844s (± 0.79%)	0.894s (± 0.64%)	🔻+0.050s (+ 5.94%)	0.886s	0.915s	p=0.000 n=12
Emit Time	0.000s	0.000s	~	~	~	p=1.000 n=12
Total Time	0.998s (± 0.62%)	1.049s (± 0.76%)	🔻+0.051s (+ 5.08%)	1.029s	1.075s	p=0.000 n=12
vscode - native
Errors	0	0	~	~	~	p=1.000 n=12
Symbols	7,677,900	7,677,900	~	~	~	p=1.000 n=12
Types	2,642,005	2,642,005	~	~	~	p=1.000 n=12
Memory Used	5,183,524k (± 0.02%)	4,903,833k (± 0.01%)	🟩-279,691k (- 5.40%)	4,902,111k	4,905,891k	p=0.000 n=12
Memory Allocs	40,261,572 (± 0.01%)	40,262,669 (± 0.01%)	~	40,258,123	40,270,622	p=0.178 n=12
Config Time	0.061s (± 0.47%)	0.061s (± 0.30%)	~	0.060s	0.061s	p=0.590 n=12
Parse Time	1.588s (± 1.29%)	1.465s (± 2.07%)	🟩-0.122s (- 7.70%)	1.399s	1.568s	p=0.000 n=12
Bind Time	0.327s (± 0.42%)	0.361s (± 0.26%)	🔻+0.034s (+10.39%)	0.360s	0.364s	p=0.000 n=12
Check Time	9.863s (± 0.08%)	10.146s (± 0.07%)	+0.283s (+ 2.87%)	10.128s	10.169s	p=0.000 n=12
Emit Time	2.909s (± 0.80%)	3.098s (± 2.20%)	🔻+0.189s (+ 6.49%)	3.009s	3.412s	p=0.000 n=12
Total Time	14.823s (± 0.21%)	15.206s (± 0.63%)	+0.384s (+ 2.59%)	15.047s	15.646s	p=0.000 n=12
webpack - native
Errors	2	2	~	~	~	p=1.000 n=12
Symbols	1,380	1,380	~	~	~	p=1.000 n=12
Types	340	340	~	~	~	p=1.000 n=12
Memory Used	194,197k (± 0.04%)	162,825k (± 0.04%)	🟩-31,372k (-16.15%)	162,656k	162,998k	p=0.000 n=12
Memory Allocs	822,157 (± 0.20%)	822,085 (± 0.15%)	~	819,108	827,296	p=0.799 n=12
Config Time	0.008s (± 5.90%)	0.009s (± 5.90%)	~	0.008s	0.010s	p=1.000 n=12
Parse Time	0.229s (± 2.05%)	0.220s (± 2.61%)	🟩-0.009s (- 4.11%)	0.197s	0.231s	p=0.004 n=12
Bind Time	0s	0s	~	~	~	p=1.000 n=12
Check Time	0s	0s	~	~	~	p=1.000 n=12
Emit Time	0.000s	0.000s	~	~	~	p=1.000 n=12
Total Time	0.238s (± 1.99%)	0.229s (± 2.52%)	🟩-0.009s (- 3.92%)	0.206s	0.240s	p=0.005 n=12
xstate-main - native
Errors	0	0	~	~	~	p=1.000 n=12
Symbols	1,020,005	1,020,005	~	~	~	p=1.000 n=12
Types	376,891	376,891	~	~	~	p=1.000 n=12
Memory Used	603,515k (± 0.01%)	580,153k (± 0.02%)	🟩-23,362k (- 3.87%)	579,856k	580,413k	p=0.000 n=12
Memory Allocs	4,752,201 (± 0.06%)	4,750,219 (± 0.04%)	~	4,747,240	4,756,227	p=0.291 n=12
Config Time	0.003s	0.003s (± 8.64%)	~	0.002s	0.003s	p=0.478 n=12
Parse Time	0.146s (± 3.44%)	0.139s (± 2.97%)	🟩-0.007s (- 4.96%)	0.130s	0.149s	p=0.037 n=12
Bind Time	0.040s (±17.60%)	0.047s (±17.71%)	🔻+0.007s (+18.83%)	0.036s	0.070s	p=0.049 n=12
Check Time	1.086s (± 0.92%)	1.121s (± 0.89%)	+0.036s (+ 3.29%)	1.090s	1.147s	p=0.000 n=12
Emit Time	0.000s	0.000s	~	~	~	p=1.000 n=12
Total Time	1.283s (± 0.82%)	1.320s (± 0.79%)	+0.037s (+ 2.89%)	1.276s	1.336s	p=0.000 n=12

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	12
Baseline	baseline	12

Developer Information:

Download Benchmarks

[Jake Bailey (jakebailey)]

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

[typescript-automation]

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

Command	Status	Results
perf test this faster	✅ Started	👀 Results

[typescript-automation]

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	115,480	115,480	~	~	~	p=1.000 n=12
Types	96,945	96,945	~	~	~	p=1.000 n=12
Memory Used	149,379k (± 0.47%)	141,073k (± 0.40%)	🟩-8,306k (- 5.56%)	138,945k	142,414k	p=0.000 n=12
Memory Allocs	2,247,406 (± 0.00%)	2,247,451 (± 0.00%)	~	2,247,188	2,247,671	p=0.347 n=12
Config Time	0.000s	0.000s	~	~	~	p=1.000 n=12
Parse Time	0.041s (± 5.08%)	0.038s (± 5.20%)	~	0.034s	0.044s	p=0.065 n=12
Bind Time	0.013s (±15.87%)	0.013s (±11.47%)	~	0.010s	0.018s	p=0.347 n=12
Check Time	0.509s (± 0.71%)	0.510s (± 0.96%)	~	0.499s	0.523s	p=0.503 n=12
Emit Time	0.268s (± 2.10%)	0.273s (± 1.81%)	~	0.259s	0.283s	p=0.086 n=12
Total Time	0.836s (± 0.66%)	0.841s (± 0.95%)	~	0.824s	0.867s	p=0.560 n=12
angular-1 - native
Errors	3	3	~	~	~	p=1.000 n=12
Symbols	846,471 (± 0.10%)	847,433 (± 0.07%)	+963 (+ 0.11%)	845,561	848,540	p=0.046 n=12
Types	249,913 (± 0.00%)	249,913 (± 0.00%)	~	249,910	249,915	p=0.527 n=12
Memory Used	793,042k (± 0.04%)	735,526k (± 0.13%)	🟩-57,515k (- 7.25%)	734,414k	740,115k	p=0.000 n=12
Memory Allocs	13,040,136 (± 0.06%)	13,048,408 (± 0.06%)	+8,272 (+ 0.06%)	13,042,328	13,088,786	p=0.012 n=12
Config Time	0.016s	0.016s (± 1.13%)	~	0.016s	0.017s	p=1.000 n=12
Parse Time	0.281s (± 2.37%)	0.267s (± 2.05%)	🟩-0.013s (- 4.81%)	0.247s	0.275s	p=0.002 n=12
Bind Time	0.061s (± 8.27%)	0.063s (± 8.09%)	+0.001s (+ 1.76%)	0.058s	0.088s	p=0.029 n=12
Check Time	0s	0s	~	~	~	p=1.000 n=12
Emit Time	1.654s (± 0.84%)	1.661s (± 1.38%)	~	1.619s	1.750s	p=0.921 n=12
Total Time	2.028s (± 0.82%)	2.021s (± 1.36%)	~	1.971s	2.131s	p=0.401 n=12
mui-docs - native
Errors	11,278 (± 0.02%)	11,275 (± 0.03%)	~	11,262	11,281	p=0.071 n=12
Symbols	4,313,827	4,313,827	~	~	~	p=1.000 n=12
Types	1,641,392	1,641,392	~	~	~	p=1.000 n=12
Memory Used	4,908,083k (± 0.03%)	4,856,819k (± 0.03%)	-51,263k (- 1.04%)	4,854,612k	4,860,283k	p=0.000 n=12
Memory Allocs	50,079,407 (± 0.02%)	50,081,096 (± 0.03%)	~	50,030,474	50,122,498	p=0.590 n=12
Config Time	0.016s (± 2.08%)	0.016s (± 1.81%)	~	0.015s	0.016s	p=0.667 n=12
Parse Time	0.551s (± 2.52%)	0.537s (± 2.19%)	~	0.501s	0.560s	p=0.117 n=12
Bind Time	0.002s	0.003s (±31.51%)	🔻+0.001s (+66.67%)	0.002s	0.006s	p=0.037 n=12
Check Time	17.234s (± 0.27%)	17.111s (± 0.29%)	-0.122s (- 0.71%)	17.045s	17.333s	p=0.000 n=12
Emit Time	0.444s (± 2.21%)	0.460s (± 2.67%)	~	0.437s	0.478s	p=0.057 n=12
Total Time	18.992s (± 0.36%)	18.874s (± 0.31%)	-0.118s (- 0.62%)	18.734s	19.070s	p=0.032 n=12
self-build-src - native
Errors	0	0	~	~	~	p=1.000 n=12
Symbols	1,394,411	1,394,411	~	~	~	p=1.000 n=12
Types	443,627	443,627	~	~	~	p=1.000 n=12
Memory Used	1,642,073k (± 0.30%)	1,522,506k (± 0.30%)	🟩-119,568k (- 7.28%)	1,509,291k	1,533,722k	p=0.000 n=12
Memory Allocs	96,886,799 (± 0.04%)	96,934,272 (± 0.04%)	~	96,859,790	97,049,921	p=0.101 n=12
Config Time	0.003s (±14.42%)	0.003s (±12.29%)	~	0.002s	0.004s	p=0.196 n=12
Parse Time	0.196s (± 3.24%)	0.190s (± 2.69%)	~	0.175s	0.203s	p=0.183 n=12
Bind Time	0.000s	0.000s	~	~	~	p=1.000 n=12
Check Time	1.830s (± 0.38%)	1.852s (± 0.60%)	+0.022s (+ 1.19%)	1.829s	1.876s	p=0.001 n=12
Emit Time	0.304s (± 4.57%)	0.286s (± 6.22%)	~	0.247s	0.329s	p=0.104 n=12
Total Time	25.264s (± 0.64%)	25.188s (± 0.71%)	~	24.724s	25.632s	p=0.378 n=12
self-compiler - native
Errors	0	0	~	~	~	p=1.000 n=12
Symbols	337,618	337,618	~	~	~	p=1.000 n=12
Types	198,941	198,941	~	~	~	p=1.000 n=12
Memory Used	319,704k (± 0.07%)	300,389k (± 0.06%)	🟩-19,315k (- 6.04%)	300,057k	300,990k	p=0.000 n=12
Memory Allocs	4,660,532 (± 0.01%)	4,664,113 (± 0.01%)	+3,580 (+ 0.08%)	4,662,879	4,665,627	p=0.000 n=12
Config Time	0.001s	0.001s	~	~	~	p=1.000 n=12
Parse Time	0.111s (± 4.98%)	0.105s (± 4.45%)	~	0.094s	0.120s	p=0.182 n=12
Bind Time	0.000s	0.000s	~	~	~	p=1.000 n=12
Check Time	1.066s (± 0.69%)	1.075s (± 0.30%)	+0.010s (+ 0.89%)	1.070s	1.085s	p=0.037 n=12
Emit Time	0.142s (±11.28%)	0.144s (±13.17%)	~	0.100s	0.182s	p=0.766 n=12
Total Time	1.373s (± 1.09%)	1.379s (± 1.34%)	~	1.339s	1.434s	p=0.943 n=12
ts-pre-modules - native
Errors	87	87	~	~	~	p=1.000 n=12
Symbols	305,341	305,341	~	~	~	p=1.000 n=12
Types	182,038	182,038	~	~	~	p=1.000 n=12
Memory Used	277,343k (± 0.03%)	261,048k (± 0.01%)	🟩-16,295k (- 5.88%)	260,958k	261,144k	p=0.000 n=12
Memory Allocs	1,627,993 (± 0.01%)	1,628,028 (± 0.01%)	~	1,627,691	1,628,531	p=0.932 n=12
Config Time	0.000s (±217.90%)	0.000s (±217.90%)	~	0.000s	0.001s	p=1.000 n=12
Parse Time	0.098s (± 3.95%)	0.095s (± 3.21%)	~	0.086s	0.102s	p=0.234 n=12
Bind Time	0.042s (±11.32%)	0.039s (± 9.22%)	~	0.029s	0.052s	p=0.369 n=12
Check Time	0.839s (± 0.68%)	0.855s (± 0.64%)	+0.016s (+ 1.85%)	0.845s	0.871s	p=0.000 n=12
Emit Time	0.000s	0.000s	~	~	~	p=1.000 n=12
Total Time	0.994s (± 0.89%)	1.004s (± 0.76%)	~	0.989s	1.026s	p=0.075 n=12
vscode - native
Errors	0	0	~	~	~	p=1.000 n=12
Symbols	7,618,605	7,618,605	~	~	~	p=1.000 n=12
Types	2,622,983	2,622,983	~	~	~	p=1.000 n=12
Memory Used	5,163,801k (± 0.01%)	4,883,724k (± 0.02%)	🟩-280,077k (- 5.42%)	4,880,661k	4,886,609k	p=0.000 n=12
Memory Allocs	40,111,827 (± 0.02%)	40,115,105 (± 0.03%)	~	40,102,974	40,180,990	p=0.514 n=12
Config Time	0.061s (± 0.40%)	0.061s (± 0.40%)	~	0.061s	0.062s	p=0.137 n=12
Parse Time	1.585s (± 1.50%)	1.441s (± 1.92%)	🟩-0.144s (- 9.10%)	1.387s	1.523s	p=0.000 n=12
Bind Time	0.330s (± 0.24%)	0.392s (±16.41%)	🔻+0.061s (+18.63%)	0.332s	0.669s	p=0.000 n=12
Check Time	9.707s (± 0.35%)	9.651s (± 0.79%)	-0.056s (- 0.58%)	9.392s	9.822s	p=0.019 n=12
Emit Time	2.923s (± 0.67%)	3.149s (± 9.96%)	🔻+0.227s (+ 7.75%)	2.905s	4.631s	p=0.014 n=12
Total Time	14.682s (± 0.30%)	14.775s (± 1.97%)	~	14.479s	16.090s	p=0.247 n=12
webpack - native
Errors	2	2	~	~	~	p=1.000 n=12
Symbols	1,380	1,380	~	~	~	p=1.000 n=12
Types	340	340	~	~	~	p=1.000 n=12
Memory Used	194,016k (± 0.06%)	162,742k (± 0.08%)	🟩-31,274k (-16.12%)	162,437k	163,213k	p=0.000 n=12
Memory Allocs	821,303 (± 0.10%)	821,747 (± 0.19%)	~	818,996	827,442	p=0.932 n=12
Config Time	0.008s	0.008s	~	~	~	p=1.000 n=12
Parse Time	0.202s (± 2.39%)	0.198s (± 1.43%)	-0.004s (- 2.11%)	0.188s	0.205s	p=0.039 n=12
Bind Time	0s	0s	~	~	~	p=1.000 n=12
Check Time	0s	0s	~	~	~	p=1.000 n=12
Emit Time	0.000s	0.000s	~	~	~	p=1.000 n=12
Total Time	0.210s (± 2.29%)	0.206s (± 1.37%)	-0.004s (- 2.06%)	0.196s	0.213s	p=0.034 n=12
xstate-main - native
Errors	0	0	~	~	~	p=1.000 n=12
Symbols	1,020,005	1,020,005	~	~	~	p=1.000 n=12
Types	376,891	376,891	~	~	~	p=1.000 n=12
Memory Used	603,410k (± 0.02%)	580,091k (± 0.02%)	🟩-23,319k (- 3.86%)	579,847k	580,298k	p=0.000 n=12
Memory Allocs	4,749,845 (± 0.03%)	4,750,512 (± 0.05%)	~	4,746,400	4,757,830	p=0.932 n=12
Config Time	0.003s (± 8.64%)	0.003s (± 8.64%)	~	0.002s	0.003s	p=1.000 n=12
Parse Time	0.145s (± 3.78%)	0.142s (± 3.08%)	~	0.133s	0.153s	p=0.417 n=12
Bind Time	0.047s (±20.62%)	0.040s (±13.69%)	~	0.034s	0.059s	p=0.853 n=12
Check Time	1.089s (± 0.77%)	1.112s (± 0.69%)	+0.024s (+ 2.17%)	1.091s	1.125s	p=0.000 n=12
Emit Time	0.000s	0.000s	~	~	~	p=1.000 n=12
Total Time	1.293s (± 1.12%)	1.307s (± 0.40%)	~	1.297s	1.320s	p=0.097 n=12

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	12
Baseline	baseline	12

Developer Information:

Download Benchmarks

[Jake Bailey (jakebailey)]

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

[typescript-automation]

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

Command	Status	Results
perf test this faster	✅ Started	👀 Results

[typescript-automation]

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	115,480	115,480	~	~	~	p=1.000 n=12
Types	96,945	96,945	~	~	~	p=1.000 n=12
Memory Used	149,128k (± 0.35%)	140,792k (± 0.42%)	🟩-8,336k (- 5.59%)	139,264k	142,583k	p=0.000 n=12
Memory Allocs	2,247,407 (± 0.00%)	2,247,351 (± 0.00%)	~	2,247,045	2,247,646	p=0.478 n=12
Config Time	0.000s	0.000s	~	~	~	p=1.000 n=12
Parse Time	0.041s (± 3.69%)	0.038s (± 3.83%)	🟩-0.003s (- 7.17%)	0.034s	0.041s	p=0.007 n=12
Bind Time	0.013s (±10.75%)	0.012s (±12.12%)	~	0.010s	0.017s	p=0.606 n=12
Check Time	0.513s (± 0.85%)	0.511s (± 0.65%)	~	0.501s	0.521s	p=0.831 n=12
Emit Time	0.273s (± 1.91%)	0.271s (± 3.32%)	~	0.252s	0.307s	p=0.522 n=12
Total Time	0.846s (± 0.79%)	0.839s (± 0.91%)	~	0.823s	0.869s	p=0.091 n=12
angular-1 - native
Errors	3	3	~	~	~	p=1.000 n=12
Symbols	847,022 (± 0.08%)	846,793 (± 0.08%)	~	844,545	848,350	p=0.630 n=12
Types	249,915 (± 0.00%)	249,912 (± 0.00%)	~	249,910	249,915	p=0.329 n=12
Memory Used	792,948k (± 0.04%)	735,306k (± 0.06%)	🟩-57,641k (- 7.27%)	734,505k	737,036k	p=0.000 n=12
Memory Allocs	13,036,504 (± 0.04%)	13,051,968 (± 0.11%)	+15,463 (+ 0.12%)	13,041,414	13,125,309	p=0.000 n=12
Config Time	0.016s	0.016s	~	~	~	p=1.000 n=12
Parse Time	0.280s (± 1.83%)	0.269s (± 2.57%)	🟩-0.011s (- 3.99%)	0.245s	0.282s	p=0.010 n=12
Bind Time	0.061s (± 8.34%)	0.064s (±16.47%)	~	0.052s	0.115s	p=0.775 n=12
Check Time	0s	0s	~	~	~	p=1.000 n=12
Emit Time	1.644s (± 0.85%)	1.654s (± 1.71%)	~	1.625s	1.766s	p=0.943 n=12
Total Time	2.016s (± 0.95%)	2.018s (± 1.82%)	~	1.980s	2.146s	p=0.104 n=12
mui-docs - native
Errors	11,276 (± 0.03%)	11,277 (± 0.03%)	~	11,265	11,282	p=0.559 n=12
Symbols	4,313,827	4,313,827	~	~	~	p=1.000 n=12
Types	1,641,392	1,641,392	~	~	~	p=1.000 n=12
Memory Used	4,907,353k (± 0.04%)	4,856,761k (± 0.04%)	-50,593k (- 1.03%)	4,852,054k	4,862,000k	p=0.000 n=12
Memory Allocs	50,065,370 (± 0.04%)	50,067,181 (± 0.04%)	~	50,019,316	50,129,005	p=0.843 n=12
Config Time	0.016s (± 2.12%)	0.015s (± 2.10%)	~	0.015s	0.016s	p=1.000 n=12
Parse Time	0.555s (± 2.25%)	0.536s (± 2.46%)	🟩-0.020s (- 3.56%)	0.494s	0.559s	p=0.027 n=12
Bind Time	0.002s	0.002s (±24.21%)	~	0.002s	0.005s	p=1.000 n=12
Check Time	17.257s (± 0.27%)	17.283s (± 0.31%)	~	17.204s	17.513s	p=0.702 n=12
Emit Time	0.446s (± 2.24%)	0.454s (± 2.74%)	~	0.436s	0.479s	p=0.558 n=12
Total Time	19.010s (± 0.39%)	19.023s (± 0.34%)	~	18.884s	19.248s	p=0.932 n=12
self-build-src - native
Errors	0	0	~	~	~	p=1.000 n=12
Symbols	1,394,411	1,394,411	~	~	~	p=1.000 n=12
Types	443,627	443,627	~	~	~	p=1.000 n=12
Memory Used	1,642,547k (± 0.28%)	1,526,438k (± 0.30%)	🟩-116,109k (- 7.07%)	1,512,617k	1,540,569k	p=0.000 n=12
Memory Allocs	96,907,789 (± 0.04%)	96,958,905 (± 0.05%)	+51,116 (+ 0.05%)	96,870,771	97,076,016	p=0.028 n=12
Config Time	0.003s (±12.31%)	0.003s (±15.93%)	~	0.002s	0.004s	p=0.081 n=12
Parse Time	0.199s (± 2.15%)	0.189s (± 3.60%)	🟩-0.010s (- 4.90%)	0.171s	0.210s	p=0.018 n=12
Bind Time	0.000s (±217.90%)	0.000s (±217.90%)	~	0.000s	0.004s	p=1.000 n=12
Check Time	1.830s (± 0.55%)	1.841s (± 0.40%)	~	1.823s	1.863s	p=0.091 n=12
Emit Time	0.302s (± 2.52%)	0.290s (± 5.59%)	~	0.251s	0.319s	p=0.451 n=12
Total Time	25.270s (± 0.53%)	25.067s (± 0.70%)	~	24.616s	25.439s	p=0.060 n=12
self-compiler - native
Errors	0	0	~	~	~	p=1.000 n=12
Symbols	337,618	337,618	~	~	~	p=1.000 n=12
Types	198,941	198,941	~	~	~	p=1.000 n=12
Memory Used	319,753k (± 0.07%)	300,329k (± 0.03%)	🟩-19,425k (- 6.07%)	300,096k	300,666k	p=0.000 n=12
Memory Allocs	4,660,786 (± 0.01%)	4,663,857 (± 0.01%)	+3,071 (+ 0.07%)	4,662,450	4,665,659	p=0.000 n=12
Config Time	0.001s	0.001s	~	~	~	p=1.000 n=12
Parse Time	0.112s (± 3.12%)	0.109s (± 5.19%)	~	0.097s	0.123s	p=0.384 n=12
Bind Time	0.000s	0.000s	~	~	~	p=1.000 n=12
Check Time	1.065s (± 0.67%)	1.070s (± 0.47%)	~	1.059s	1.087s	p=0.560 n=12
Emit Time	0.158s (± 5.56%)	0.131s (±15.96%)	~	0.101s	0.181s	p=0.098 n=12
Total Time	1.387s (± 0.67%)	1.365s (± 1.18%)	-0.022s (- 1.56%)	1.334s	1.411s	p=0.034 n=12
ts-pre-modules - native
Errors	87	87	~	~	~	p=1.000 n=12
Symbols	305,341	305,341	~	~	~	p=1.000 n=12
Types	182,038	182,038	~	~	~	p=1.000 n=12
Memory Used	277,349k (± 0.01%)	261,048k (± 0.03%)	🟩-16,301k (- 5.88%)	260,797k	261,213k	p=0.000 n=12
Memory Allocs	1,627,965 (± 0.01%)	1,628,194 (± 0.01%)	~	1,627,643	1,628,788	p=0.089 n=12
Config Time	0.000s (±217.90%)	0.000s	~	~	~	p=1.000 n=12
Parse Time	0.099s (± 4.75%)	0.091s (± 3.98%)	🟩-0.007s (- 7.42%)	0.082s	0.101s	p=0.021 n=12
Bind Time	0.040s (± 8.82%)	0.042s (± 9.12%)	~	0.033s	0.053s	p=0.467 n=12
Check Time	0.843s (± 0.92%)	0.856s (± 0.90%)	~	0.846s	0.881s	p=0.061 n=12
Emit Time	0.000s	0.000s	~	~	~	p=1.000 n=12
Total Time	0.997s (± 1.11%)	1.005s (± 1.02%)	~	0.993s	1.041s	p=0.399 n=12
vscode - native
Errors	0	0	~	~	~	p=1.000 n=12
Symbols	7,634,846	7,634,846	~	~	~	p=1.000 n=12
Types	2,629,323	2,629,323	~	~	~	p=1.000 n=12
Memory Used	5,168,851k (± 0.01%)	4,890,343k (± 0.02%)	🟩-278,507k (- 5.39%)	4,887,499k	4,892,185k	p=0.000 n=12
Memory Allocs	40,138,107 (± 0.01%)	40,141,796 (± 0.01%)	+3,689 (+ 0.01%)	40,134,627	40,157,363	p=0.033 n=12
Config Time	0.060s (± 0.83%)	0.060s (± 0.60%)	~	0.059s	0.061s	p=0.301 n=12
Parse Time	1.588s (± 1.61%)	1.446s (± 1.69%)	🟩-0.141s (- 8.90%)	1.369s	1.500s	p=0.000 n=12
Bind Time	0.330s (± 0.62%)	0.359s (±18.37%)	~	0.328s	0.692s	p=0.421 n=12
Check Time	9.732s (± 0.38%)	9.573s (± 0.86%)	-0.159s (- 1.63%)	9.160s	9.622s	p=0.000 n=12
Emit Time	2.916s (± 0.89%)	3.058s (± 7.05%)	🔻+0.142s (+ 4.87%)	2.921s	4.141s	p=0.005 n=12
Total Time	14.703s (± 0.36%)	14.576s (± 1.29%)	-0.127s (- 0.86%)	14.426s	15.515s	p=0.001 n=12
webpack - native
Errors	2	2	~	~	~	p=1.000 n=12
Symbols	1,380	1,380	~	~	~	p=1.000 n=12
Types	340	340	~	~	~	p=1.000 n=12
Memory Used	194,106k (± 0.07%)	162,786k (± 0.07%)	🟩-31,320k (-16.14%)	162,475k	163,062k	p=0.000 n=12
Memory Allocs	821,766 (± 0.15%)	821,757 (± 0.17%)	~	818,636	825,823	p=0.799 n=12
Config Time	0.008s	0.008s	~	~	~	p=1.000 n=12
Parse Time	0.200s (± 2.90%)	0.194s (± 3.16%)	~	0.179s	0.205s	p=0.257 n=12
Bind Time	0s	0s	~	~	~	p=1.000 n=12
Check Time	0s	0s	~	~	~	p=1.000 n=12
Emit Time	0.000s	0.000s	~	~	~	p=1.000 n=12
Total Time	0.208s (± 2.78%)	0.202s (± 2.96%)	~	0.188s	0.213s	p=0.270 n=12
xstate-main - native
Errors	0	0	~	~	~	p=1.000 n=12
Symbols	1,020,005	1,020,005	~	~	~	p=1.000 n=12
Types	376,891	376,891	~	~	~	p=1.000 n=12
Memory Used	603,368k (± 0.02%)	580,155k (± 0.01%)	🟩-23,213k (- 3.85%)	579,995k	580,370k	p=0.000 n=12
Memory Allocs	4,749,184 (± 0.04%)	4,749,467 (± 0.03%)	~	4,745,184	4,755,191	p=0.551 n=12
Config Time	0.003s	0.003s (±10.34%)	~	0.002s	0.003s	p=0.217 n=12
Parse Time	0.145s (± 4.24%)	0.143s (± 2.57%)	~	0.130s	0.154s	p=0.540 n=12
Bind Time	0.046s (±17.92%)	0.040s (±17.57%)	~	0.033s	0.068s	p=0.105 n=12
Check Time	1.091s (± 0.82%)	1.111s (± 0.92%)	+0.020s (+ 1.79%)	1.082s	1.131s	p=0.004 n=12
Emit Time	0.000s	0.000s	~	~	~	p=1.000 n=12
Total Time	1.297s (± 1.01%)	1.306s (± 0.40%)	~	1.296s	1.317s	p=0.560 n=12

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	12
Baseline	baseline	12

Developer Information:

Download Benchmarks

[Jake Bailey (jakebailey)]

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

[typescript-automation]

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

Command	Status	Results
perf test this faster	✅ Started	👀 Results

[typescript-automation]

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	115,480	115,480	~	~	~	p=1.000 n=12
Types	96,945	96,945	~	~	~	p=1.000 n=12
Memory Used	149,576k (± 0.40%)	140,837k (± 0.52%)	🟩-8,739k (- 5.84%)	139,573k	142,997k	p=0.000 n=12
Memory Allocs	2,247,394 (± 0.00%)	2,247,500 (± 0.00%)	~	2,247,193	2,247,741	p=0.060 n=12
Config Time	0.000s	0.000s	~	~	~	p=1.000 n=12
Parse Time	0.041s (± 4.36%)	0.039s (± 3.76%)	~	0.036s	0.045s	p=0.293 n=12
Bind Time	0.012s (± 9.04%)	0.014s (±11.59%)	~	0.010s	0.018s	p=0.176 n=12
Check Time	0.513s (± 0.84%)	0.496s (± 0.62%)	🟩-0.017s (- 3.30%)	0.489s	0.503s	p=0.000 n=12
Emit Time	0.269s (± 1.92%)	0.271s (± 1.62%)	~	0.263s	0.284s	p=0.787 n=12
Total Time	0.841s (± 0.87%)	0.827s (± 0.77%)	-0.014s (- 1.66%)	0.816s	0.844s	p=0.014 n=12
angular-1 - native
Errors	3	3	~	~	~	p=1.000 n=12
Symbols	847,076 (± 0.08%)	846,593 (± 0.09%)	~	844,527	848,292	p=0.347 n=12
Types	249,914 (± 0.00%)	249,911 (± 0.00%)	~	249,910	249,913	p=0.128 n=12
Memory Used	792,983k (± 0.05%)	735,832k (± 0.04%)	🟩-57,151k (- 7.21%)	735,307k	736,764k	p=0.000 n=12
Memory Allocs	13,045,751 (± 0.12%)	13,044,987 (± 0.02%)	-764 (- 0.01%)	13,041,277	13,050,502	p=0.006 n=12
Config Time	0.016s	0.016s	~	~	~	p=1.000 n=12
Parse Time	0.282s (± 2.09%)	0.265s (± 2.73%)	🟩-0.017s (- 5.98%)	0.251s	0.287s	p=0.001 n=12
Bind Time	0.059s (± 1.46%)	0.056s (± 0.48%)	🟩-0.003s (- 5.75%)	0.055s	0.057s	p=0.000 n=12
Check Time	0s	0s	~	~	~	p=1.000 n=12
Emit Time	1.649s (± 0.85%)	1.626s (± 1.03%)	-0.023s (- 1.41%)	1.603s	1.706s	p=0.003 n=12
Total Time	2.023s (± 0.76%)	1.976s (± 0.84%)	-0.047s (- 2.32%)	1.954s	2.052s	p=0.000 n=12
mui-docs - native
Errors	11,278 (± 0.03%)	11,276 (± 0.04%)	~	11,262	11,282	p=0.463 n=12
Symbols	4,313,827	4,313,827	~	~	~	p=1.000 n=12
Types	1,641,392	1,641,392	~	~	~	p=1.000 n=12
Memory Used	4,906,731k (± 0.03%)	4,857,113k (± 0.03%)	-49,619k (- 1.01%)	4,853,628k	4,860,399k	p=0.000 n=12
Memory Allocs	50,062,541 (± 0.04%)	50,073,318 (± 0.02%)	~	50,052,016	50,103,141	p=0.114 n=12
Config Time	0.016s (± 2.12%)	0.016s (± 2.12%)	~	0.015s	0.016s	p=1.000 n=12
Parse Time	0.558s (± 2.39%)	0.538s (± 2.08%)	🟩-0.020s (- 3.56%)	0.502s	0.558s	p=0.006 n=12
Bind Time	0.002s	0.002s	~	~	~	p=1.000 n=12
Check Time	17.222s (± 0.25%)	17.103s (± 0.16%)	-0.119s (- 0.69%)	17.051s	17.158s	p=0.000 n=12
Emit Time	0.452s (± 2.42%)	0.462s (± 3.60%)	~	0.435s	0.520s	p=0.876 n=12
Total Time	18.976s (± 0.28%)	18.800s (± 0.26%)	-0.176s (- 0.92%)	18.703s	18.898s	p=0.000 n=12
self-build-src - native
Errors	0	0	~	~	~	p=1.000 n=12
Symbols	1,394,411	1,394,411	~	~	~	p=1.000 n=12
Types	443,627	443,627	~	~	~	p=1.000 n=12
Memory Used	1,642,853k (± 0.30%)	1,525,089k (± 0.27%)	🟩-117,763k (- 7.17%)	1,514,238k	1,536,677k	p=0.000 n=12
Memory Allocs	96,911,796 (± 0.05%)	96,942,094 (± 0.03%)	~	96,866,444	97,014,400	p=0.319 n=12
Config Time	0.003s (±18.34%)	0.003s (±16.58%)	~	0.002s	0.005s	p=0.406 n=12
Parse Time	0.200s (± 1.93%)	0.187s (± 2.14%)	🟩-0.013s (- 6.30%)	0.176s	0.196s	p=0.000 n=12
Bind Time	0.000s	0.000s	~	~	~	p=1.000 n=12
Check Time	1.831s (± 0.56%)	1.821s (± 0.38%)	~	1.803s	1.840s	p=0.213 n=12
Emit Time	0.298s (± 3.88%)	0.292s (± 6.54%)	~	0.250s	0.333s	p=0.877 n=12
Total Time	25.275s (± 0.64%)	24.890s (± 0.89%)	-0.385s (- 1.52%)	24.409s	25.704s	p=0.005 n=12
self-compiler - native
Errors	0	0	~	~	~	p=1.000 n=12
Symbols	337,618	337,618	~	~	~	p=1.000 n=12
Types	198,941	198,941	~	~	~	p=1.000 n=12
Memory Used	319,677k (± 0.03%)	300,323k (± 0.03%)	🟩-19,354k (- 6.05%)	300,081k	300,599k	p=0.000 n=12
Memory Allocs	4,660,936 (± 0.01%)	4,664,169 (± 0.01%)	+3,233 (+ 0.07%)	4,662,771	4,665,304	p=0.000 n=12
Config Time	0.001s	0.001s	~	~	~	p=1.000 n=12
Parse Time	0.110s (± 3.88%)	0.110s (± 4.68%)	~	0.101s	0.123s	p=1.000 n=12
Bind Time	0.000s	0.000s	~	~	~	p=1.000 n=12
Check Time	1.058s (± 0.51%)	1.057s (± 0.41%)	~	1.048s	1.071s	p=0.766 n=12
Emit Time	0.155s (± 7.40%)	0.137s (±13.63%)	~	0.099s	0.172s	p=0.131 n=12
Total Time	1.379s (± 0.76%)	1.359s (± 1.20%)	-0.020s (- 1.43%)	1.323s	1.408s	p=0.043 n=12
ts-pre-modules - native
Errors	87	87	~	~	~	p=1.000 n=12
Symbols	305,341	305,341	~	~	~	p=1.000 n=12
Types	182,038	182,038	~	~	~	p=1.000 n=12
Memory Used	277,252k (± 0.02%)	261,032k (± 0.03%)	🟩-16,220k (- 5.85%)	260,861k	261,223k	p=0.000 n=12
Memory Allocs	1,628,002 (± 0.01%)	1,628,085 (± 0.01%)	~	1,627,843	1,628,532	p=0.619 n=12
Config Time	0.000s	0.000s	~	~	~	p=1.000 n=12
Parse Time	0.098s (± 4.36%)	0.096s (± 4.70%)	~	0.085s	0.106s	p=0.521 n=12
Bind Time	0.037s (±13.21%)	0.032s (± 8.29%)	~	0.028s	0.041s	p=0.181 n=12
Check Time	0.845s (± 0.48%)	0.844s (± 0.63%)	~	0.831s	0.856s	p=0.853 n=12
Emit Time	0.000s	0.000s	~	~	~	p=1.000 n=12
Total Time	0.995s (± 0.90%)	0.988s (± 0.55%)	~	0.970s	1.000s	p=0.355 n=12
vscode - native
Errors	0	0	~	~	~	p=1.000 n=12
Symbols	7,666,058	7,666,058	~	~	~	p=1.000 n=12
Types	2,631,981	2,631,981	~	~	~	p=1.000 n=12
Memory Used	5,180,123k (± 0.01%)	4,897,590k (± 0.01%)	🟩-282,533k (- 5.45%)	4,896,647k	4,899,149k	p=0.000 n=12
Memory Allocs	40,251,673 (± 0.02%)	40,248,668 (± 0.01%)	~	40,243,296	40,257,764	p=0.977 n=12
Config Time	0.061s (± 0.30%)	0.061s (± 0.60%)	~	0.060s	0.062s	p=0.590 n=12
Parse Time	1.577s (± 1.96%)	1.447s (± 1.39%)	🟩-0.130s (- 8.23%)	1.366s	1.485s	p=0.000 n=12
Bind Time	0.350s (±11.40%)	0.343s (±16.99%)	-0.006s (- 1.81%)	0.314s	0.638s	p=0.000 n=12
Check Time	9.616s (± 0.97%)	9.367s (± 0.77%)	-0.249s (- 2.59%)	9.005s	9.427s	p=0.000 n=12
Emit Time	3.037s (± 7.42%)	3.116s (± 6.62%)	+0.079s (+ 2.60%)	2.955s	4.149s	p=0.001 n=12
Total Time	14.721s (± 1.10%)	14.414s (± 1.26%)	-0.308s (- 2.09%)	14.251s	15.314s	p=0.000 n=12
webpack - native
Errors	2	2	~	~	~	p=1.000 n=12
Symbols	1,380	1,380	~	~	~	p=1.000 n=12
Types	340	340	~	~	~	p=1.000 n=12
Memory Used	194,518k (± 0.05%)	162,994k (± 0.09%)	🟩-31,524k (-16.21%)	162,438k	163,263k	p=0.000 n=12
Memory Allocs	821,649 (± 0.07%)	822,165 (± 0.14%)	~	819,964	825,374	p=0.932 n=12
Config Time	0.008s	0.008s (± 3.00%)	~	0.008s	0.009s	p=0.478 n=12
Parse Time	0.215s (± 2.63%)	0.206s (± 1.65%)	🟩-0.009s (- 4.03%)	0.199s	0.218s	p=0.023 n=12
Bind Time	0s	0s	~	~	~	p=1.000 n=12
Check Time	0s	0s	~	~	~	p=1.000 n=12
Emit Time	0.000s	0.000s	~	~	~	p=1.000 n=12
Total Time	0.223s (± 2.50%)	0.215s (± 1.59%)	🟩-0.008s (- 3.77%)	0.207s	0.227s	p=0.025 n=12
xstate-main - native
Errors	0	0	~	~	~	p=1.000 n=12
Symbols	1,020,005	1,020,005	~	~	~	p=1.000 n=12
Types	376,891	376,891	~	~	~	p=1.000 n=12
Memory Used	603,490k (± 0.02%)	580,076k (± 0.01%)	🟩-23,414k (- 3.88%)	579,856k	580,300k	p=0.000 n=12
Memory Allocs	4,750,853 (± 0.04%)	4,751,618 (± 0.04%)	~	4,747,051	4,757,785	p=0.713 n=12
Config Time	0.003s (± 6.23%)	0.003s (±10.34%)	~	0.002s	0.003s	p=0.590 n=12
Parse Time	0.147s (± 3.17%)	0.138s (± 2.58%)	🟩-0.009s (- 6.11%)	0.129s	0.147s	p=0.006 n=12
Bind Time	0.041s (±13.55%)	0.040s (±18.25%)	~	0.032s	0.066s	p=0.381 n=12
Check Time	1.083s (± 1.31%)	1.095s (± 1.43%)	~	1.054s	1.132s	p=0.202 n=12
Emit Time	0.000s	0.000s	~	~	~	p=1.000 n=12
Total Time	1.283s (± 1.22%)	1.286s (± 1.38%)	~	1.234s	1.320s	p=0.831 n=12

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	12
Baseline	baseline	12

Developer Information:

Download Benchmarks

[Jake Bailey (jakebailey)]

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

[typescript-automation]

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

Command	Status	Results
perf test this faster	✅ Started	👀 Results

[typescript-automation]

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	115,480	115,480	~	~	~	p=1.000 n=12
Types	96,945	96,945	~	~	~	p=1.000 n=12
Memory Used	148,854k (± 0.42%)	141,434k (± 0.44%)	🟩-7,420k (- 4.98%)	140,021k	142,790k	p=0.000 n=12
Memory Allocs	2,247,431 (± 0.00%)	2,247,397 (± 0.00%)	~	2,247,171	2,247,604	p=0.590 n=12
Config Time	0.000s	0.000s	~	~	~	p=1.000 n=12
Parse Time	0.041s (± 3.46%)	0.037s (± 3.62%)	🟩-0.004s (- 8.74%)	0.035s	0.041s	p=0.002 n=12
Bind Time	0.012s (±10.30%)	0.012s (± 9.81%)	~	0.010s	0.016s	p=0.959 n=12
Check Time	0.515s (± 0.94%)	0.507s (± 0.83%)	-0.009s (- 1.68%)	0.498s	0.521s	p=0.004 n=12
Emit Time	0.272s (± 3.14%)	0.275s (± 1.72%)	~	0.258s	0.284s	p=0.311 n=12
Total Time	0.847s (± 1.33%)	0.839s (± 0.72%)	~	0.827s	0.856s	p=0.369 n=12
angular-1 - native
Errors	3	3	~	~	~	p=1.000 n=12
Symbols	847,457 (± 0.08%)	846,819 (± 0.09%)	~	845,048	848,645	p=0.128 n=12
Types	249,912 (± 0.00%)	249,912 (± 0.00%)	~	249,910	249,914	p=0.943 n=12
Memory Used	793,422k (± 0.07%)	735,512k (± 0.06%)	🟩-57,910k (- 7.30%)	734,427k	736,939k	p=0.000 n=12
Memory Allocs	13,046,171 (± 0.09%)	13,049,268 (± 0.07%)	~	13,041,627	13,094,159	p=0.114 n=12
Config Time	0.016s	0.016s (± 1.90%)	~	0.016s	0.017s	p=0.093 n=12
Parse Time	0.277s (± 2.55%)	0.262s (± 2.17%)	🟩-0.014s (- 5.21%)	0.247s	0.272s	p=0.004 n=12
Bind Time	0.066s (±12.48%)	0.056s (± 0.85%)	🟩-0.010s (-15.64%)	0.054s	0.057s	p=0.000 n=12
Check Time	0s	0s	~	~	~	p=1.000 n=12
Emit Time	1.663s (± 1.21%)	1.628s (± 0.92%)	-0.035s (- 2.12%)	1.604s	1.687s	p=0.002 n=12
Total Time	2.042s (± 1.42%)	1.975s (± 0.85%)	🟩-0.067s (- 3.28%)	1.938s	2.038s	p=0.000 n=12
mui-docs - native
Errors	11,278 (± 0.03%)	11,275 (± 0.06%)	~	11,251	11,282	p=0.783 n=12
Symbols	4,230,792	4,230,792	~	~	~	p=1.000 n=12
Types	1,591,020	1,591,020	~	~	~	p=1.000 n=12
Memory Used	4,853,466k (± 0.03%)	4,803,751k (± 0.04%)	-49,716k (- 1.02%)	4,799,421k	4,808,791k	p=0.000 n=12
Memory Allocs	48,401,868 (± 0.03%)	48,408,832 (± 0.04%)	~	48,367,855	48,476,236	p=0.671 n=12
Config Time	0.015s (± 2.02%)	0.015s (± 2.10%)	~	0.015s	0.016s	p=1.000 n=12
Parse Time	0.546s (± 3.39%)	0.533s (± 2.86%)	~	0.481s	0.569s	p=0.386 n=12
Bind Time	0.002s (±24.21%)	0.003s (±30.97%)	~	0.002s	0.005s	p=0.317 n=12
Check Time	15.626s (± 0.68%)	15.396s (± 0.72%)	-0.230s (- 1.47%)	15.161s	15.606s	p=0.005 n=12
Emit Time	0.442s (± 1.61%)	0.447s (± 2.71%)	~	0.433s	0.480s	p=0.639 n=12
Total Time	17.370s (± 0.68%)	17.140s (± 0.64%)	-0.230s (- 1.32%)	16.878s	17.350s	p=0.005 n=12
self-build-src - native
Errors	0	0	~	~	~	p=1.000 n=12
Symbols	1,394,411	1,394,411	~	~	~	p=1.000 n=12
Types	443,627	443,627	~	~	~	p=1.000 n=12
Memory Used	1,639,915k (± 0.34%)	1,527,625k (± 0.29%)	🟩-112,290k (- 6.85%)	1,516,651k	1,537,997k	p=0.000 n=12
Memory Allocs	96,886,284 (± 0.03%)	96,982,496 (± 0.04%)	+96,212 (+ 0.10%)	96,901,980	97,056,273	p=0.000 n=12
Config Time	0.003s (±16.58%)	0.003s (±14.42%)	~	0.002s	0.004s	p=0.384 n=12
Parse Time	0.195s (± 2.40%)	0.190s (± 1.57%)	~	0.182s	0.198s	p=0.075 n=12
Bind Time	0.000s	0.000s	~	~	~	p=1.000 n=12
Check Time	1.828s (± 0.44%)	1.819s (± 0.43%)	~	1.798s	1.835s	p=0.091 n=12
Emit Time	0.306s (± 3.70%)	0.286s (± 6.81%)	~	0.248s	0.341s	p=0.068 n=12
Total Time	25.214s (± 0.69%)	24.835s (± 0.78%)	-0.379s (- 1.50%)	24.239s	25.321s	p=0.007 n=12
self-compiler - native
Errors	0	0	~	~	~	p=1.000 n=12
Symbols	337,618	337,618	~	~	~	p=1.000 n=12
Types	198,941	198,941	~	~	~	p=1.000 n=12
Memory Used	319,704k (± 0.05%)	300,284k (± 0.07%)	🟩-19,420k (- 6.07%)	299,807k	301,120k	p=0.000 n=12
Memory Allocs	4,660,793 (± 0.01%)	4,663,816 (± 0.01%)	+3,023 (+ 0.06%)	4,662,070	4,665,479	p=0.000 n=12
Config Time	0.001s	0.001s	~	~	~	p=1.000 n=12
Parse Time	0.115s (± 4.88%)	0.108s (± 4.90%)	~	0.095s	0.119s	p=0.053 n=12
Bind Time	0.000s	0.000s	~	~	~	p=1.000 n=12
Check Time	1.065s (± 0.71%)	1.063s (± 0.88%)	~	1.050s	1.103s	p=0.561 n=12
Emit Time	0.149s (±10.07%)	0.141s (±13.45%)	~	0.103s	0.170s	p=0.744 n=12
Total Time	1.383s (± 0.89%)	1.365s (± 1.34%)	~	1.320s	1.395s	p=0.155 n=12
ts-pre-modules - native
Errors	87	87	~	~	~	p=1.000 n=12
Symbols	305,341	305,341	~	~	~	p=1.000 n=12
Types	182,038	182,038	~	~	~	p=1.000 n=12
Memory Used	277,310k (± 0.02%)	260,967k (± 0.02%)	🟩-16,344k (- 5.89%)	260,876k	261,081k	p=0.000 n=12
Memory Allocs	1,628,019 (± 0.01%)	1,628,139 (± 0.01%)	~	1,627,711	1,628,532	p=0.319 n=12
Config Time	0.000s (±113.79%)	0.000s	~	~	~	p=0.217 n=12
Parse Time	0.101s (± 4.06%)	0.093s (± 4.13%)	🟩-0.008s (- 7.61%)	0.083s	0.102s	p=0.012 n=12
Bind Time	0.040s (±11.48%)	0.039s (±10.75%)	~	0.032s	0.051s	p=0.722 n=12
Check Time	0.841s (± 0.66%)	0.842s (± 0.84%)	~	0.825s	0.860s	p=0.943 n=12
Emit Time	0.000s	0.000s	~	~	~	p=1.000 n=12
Total Time	0.996s (± 0.85%)	0.989s (± 0.70%)	~	0.973s	1.005s	p=0.259 n=12
vscode - native
Errors	0	0	~	~	~	p=1.000 n=12
Symbols	7,787,347	7,787,347	~	~	~	p=1.000 n=12
Types	2,679,539	2,679,539	~	~	~	p=1.000 n=12
Memory Used	5,237,089k (± 0.01%)	4,954,243k (± 0.02%)	🟩-282,846k (- 5.40%)	4,952,752k	4,957,383k	p=0.000 n=12
Memory Allocs	40,640,909 (± 0.04%)	40,632,306 (± 0.01%)	~	40,624,769	40,648,924	p=0.977 n=12
Config Time	0.061s (± 0.30%)	0.061s (± 0.47%)	~	0.060s	0.061s	p=0.590 n=12
Parse Time	1.568s (± 2.13%)	1.469s (± 2.09%)	🟩-0.099s (- 6.31%)	1.414s	1.546s	p=0.000 n=12
Bind Time	0.356s (±17.40%)	0.313s (± 0.37%)	🟩-0.042s (-11.95%)	0.309s	0.315s	p=0.000 n=12
Check Time	10.080s (± 1.06%)	9.827s (± 0.06%)	-0.253s (- 2.51%)	9.813s	9.840s	p=0.000 n=12
Emit Time	3.085s (± 9.70%)	2.948s (± 1.10%)	~	2.848s	3.038s	p=0.767 n=12
Total Time	15.228s (± 1.57%)	14.693s (± 0.31%)	🟩-0.534s (- 3.51%)	14.594s	14.851s	p=0.000 n=12
webpack - native
Errors	2	2	~	~	~	p=1.000 n=12
Symbols	1,380	1,380	~	~	~	p=1.000 n=12
Types	340	340	~	~	~	p=1.000 n=12
Memory Used	194,443k (± 0.07%)	163,004k (± 0.08%)	🟩-31,439k (-16.17%)	162,639k	163,284k	p=0.000 n=12
Memory Allocs	823,574 (± 0.34%)	824,376 (± 0.28%)	~	821,114	834,963	p=0.319 n=12
Config Time	0.008s (± 4.45%)	0.008s (± 3.85%)	~	0.008s	0.009s	p=0.155 n=12
Parse Time	0.221s (± 2.83%)	0.207s (± 2.96%)	🟩-0.014s (- 6.52%)	0.187s	0.220s	p=0.002 n=12
Bind Time	0s	0s	~	~	~	p=1.000 n=12
Check Time	0s	0s	~	~	~	p=1.000 n=12
Emit Time	0.000s	0.000s	~	~	~	p=1.000 n=12
Total Time	0.230s (± 2.71%)	0.215s (± 2.58%)	🟩-0.014s (- 6.10%)	0.197s	0.228s	p=0.001 n=12
xstate-main - native
Errors	0	0	~	~	~	p=1.000 n=12
Symbols	1,020,005	1,020,005	~	~	~	p=1.000 n=12
Types	376,891	376,891	~	~	~	p=1.000 n=12
Memory Used	603,405k (± 0.02%)	580,063k (± 0.02%)	🟩-23,342k (- 3.87%)	579,853k	580,305k	p=0.000 n=12
Memory Allocs	4,750,514 (± 0.05%)	4,752,140 (± 0.05%)	~	4,746,456	4,758,960	p=0.198 n=12
Config Time	0.003s	0.003s (± 8.64%)	~	0.002s	0.003s	p=0.478 n=12
Parse Time	0.144s (± 3.28%)	0.145s (± 3.69%)	~	0.135s	0.159s	p=0.966 n=12
Bind Time	0.044s (±18.83%)	0.033s (± 2.15%)	🟩-0.011s (-24.86%)	0.032s	0.036s	p=0.001 n=12
Check Time	1.091s (± 0.90%)	1.104s (± 0.61%)	+0.013s (+ 1.17%)	1.089s	1.128s	p=0.040 n=12
Emit Time	0.000s	0.000s	~	~	~	p=1.000 n=12
Total Time	1.293s (± 1.04%)	1.292s (± 0.72%)	~	1.268s	1.328s	p=0.451 n=12

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	12
Baseline	baseline	12

Developer Information:

Download Benchmarks

[Daniel Rosenwasser (DanielRosenwasser)]

I wonder why the compiler self builds seem to use more memory, and why xstate still gets slower in checking.

[Jake Bailey (jakebailey)]

Yeah, those are the primary problems