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Switch to var in emitter, writer, printer#52906

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jakebailey merged 2 commits intomicrosoft:mainfrom
jakebailey:let-const-emitter
Feb 22, 2023
Merged

Switch to var in emitter, writer, printer#52906
jakebailey merged 2 commits intomicrosoft:mainfrom
jakebailey:let-const-emitter

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@jakebailey jakebailey commented Feb 22, 2023

I'm probably missing more parts of this, but let's start with this and see.

@typescript-bot typescript-bot added Author: Team For Uncommitted Bug PR for untriaged, rejected, closed or missing bug labels Feb 22, 2023
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jakebailey commented Feb 22, 2023

@typescript-bot perf test this

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typescript-bot commented Feb 22, 2023 •
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Heya @jakebailey, I've started to run the perf test suite on this PR at bf41a3b. You can monitor the build here.

Update: The results are in!

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typescript-bot commented Feb 22, 2023

@jakebailey
The results of the perf run you requested are in!

Here they are:

Compiler

Comparison Report - main..52906
Metric main 52906 Delta Best Worst p-value
Angular - node (v18.10.0, x64)
Memory used 359,475k (± 0.01%) 359,414k (± 0.01%) ~ 359,375k 359,502k p=0.065 n=6
Parse Time 3.48s (± 0.64%) 3.48s (± 0.65%) ~ 3.45s 3.51s p=0.935 n=6
Bind Time 1.12s (± 0.49%) 1.11s (± 0.57%) ~ 1.10s 1.12s p=0.201 n=6
Check Time 8.72s (± 0.54%) 8.67s (± 0.27%) -0.05s (- 0.61%) 8.64s 8.69s p=0.030 n=6
Emit Time 7.64s (± 0.58%) 7.41s (± 0.23%) 🟩-0.24s (- 3.07%) 7.39s 7.43s p=0.005 n=6
Total Time 20.96s (± 0.43%) 20.66s (± 0.13%) -0.30s (- 1.44%) 20.63s 20.71s p=0.005 n=6
Compiler-Unions - node (v18.10.0, x64)
Memory used 191,629k (± 1.51%) 191,632k (± 1.53%) ~ 189,671k 195,546k p=0.810 n=6
Parse Time 1.49s (± 0.56%) 1.48s (± 1.01%) ~ 1.46s 1.50s p=0.928 n=6
Bind Time 0.77s (± 0.82%) 0.77s (± 0.82%) ~ 0.76s 0.78s p=1.000 n=6
Check Time 9.33s (± 0.62%) 9.35s (± 0.34%) ~ 9.32s 9.39s p=0.421 n=6
Emit Time 2.80s (± 1.03%) 2.75s (± 1.16%) -0.04s (- 1.61%) 2.71s 2.80s p=0.044 n=6
Total Time 14.38s (± 0.51%) 14.36s (± 0.38%) ~ 14.30s 14.43s p=0.687 n=6
Monaco - node (v18.10.0, x64)
Memory used 343,885k (± 0.01%) 343,817k (± 0.01%) -68k (- 0.02%) 343,769k 343,860k p=0.031 n=6
Parse Time 2.62s (± 0.85%) 2.62s (± 1.01%) ~ 2.58s 2.66s p=1.000 n=6
Bind Time 1.01s (± 0.40%) 1.01s (± 0.74%) ~ 1.00s 1.02s p=1.000 n=6
Check Time 6.99s (± 0.20%) 7.00s (± 0.28%) ~ 6.96s 7.02s p=0.244 n=6
Emit Time 4.33s (± 1.24%) 4.21s (± 0.83%) -0.11s (- 2.66%) 4.17s 4.27s p=0.005 n=6
Total Time 14.95s (± 0.48%) 14.85s (± 0.29%) -0.11s (- 0.70%) 14.78s 14.91s p=0.019 n=6
TFS - node (v18.10.0, x64)
Memory used 299,920k (± 0.01%) 299,868k (± 0.01%) -52k (- 0.02%) 299,837k 299,926k p=0.037 n=6
Parse Time 2.05s (± 0.96%) 2.05s (± 0.97%) ~ 2.02s 2.08s p=0.935 n=6
Bind Time 1.14s (± 0.72%) 1.13s (± 0.48%) ~ 1.13s 1.14s p=0.859 n=6
Check Time 6.49s (± 0.33%) 6.49s (± 0.43%) ~ 6.46s 6.53s p=0.807 n=6
Emit Time 3.87s (± 0.39%) 3.84s (± 0.79%) -0.03s (- 0.86%) 3.81s 3.89s p=0.044 n=6
Total Time 13.56s (± 0.32%) 13.51s (± 0.30%) ~ 13.47s 13.58s p=0.078 n=6
material-ui - node (v18.10.0, x64)
Memory used 476,190k (± 0.01%) 476,196k (± 0.01%) ~ 476,137k 476,240k p=0.688 n=6
Parse Time 3.16s (± 0.40%) 3.14s (± 0.43%) ~ 3.13s 3.16s p=0.087 n=6
Bind Time 0.91s (± 0.57%) 0.91s (± 0.60%) ~ 0.90s 0.91s p=0.640 n=6
Check Time 17.05s (± 0.54%) 17.12s (± 0.70%) ~ 16.96s 17.27s p=0.470 n=6
Emit Time 0.00s (± 0.00%) 0.00s (± 0.00%) ~ 0.00s 0.00s p=1.000 n=6
Total Time 21.12s (± 0.43%) 21.16s (± 0.58%) ~ 20.98s 21.31s p=0.575 n=6
xstate - node (v18.10.0, x64)
Memory used 548,220k (± 0.01%) 548,139k (± 0.02%) ~ 547,936k 548,305k p=0.297 n=6
Parse Time 4.05s (± 0.46%) 4.07s (± 0.43%) ~ 4.05s 4.09s p=0.250 n=6
Bind Time 1.67s (± 0.82%) 1.67s (± 0.80%) ~ 1.65s 1.69s p=0.929 n=6
Check Time 2.77s (± 0.77%) 2.75s (± 0.75%) ~ 2.72s 2.77s p=0.089 n=6
Emit Time 0.08s (± 4.99%) 0.08s (± 0.00%) ~ 0.08s 0.08s p=0.405 n=6
Total Time 8.57s (± 0.51%) 8.56s (± 0.23%) ~ 8.54s 8.59s p=0.520 n=6
Angular - node (v16.17.1, x64)
Memory used 358,849k (± 0.01%) 358,783k (± 0.00%) -66k (- 0.02%) 358,772k 358,809k p=0.005 n=6
Parse Time 3.71s (± 0.28%) 3.72s (± 0.45%) ~ 3.70s 3.74s p=0.559 n=6
Bind Time 1.19s (± 0.98%) 1.18s (± 0.35%) ~ 1.18s 1.19s p=0.248 n=6
Check Time 9.49s (± 0.41%) 9.49s (± 0.43%) ~ 9.44s 9.55s p=0.936 n=6
Emit Time 8.07s (± 0.76%) 7.90s (± 0.27%) -0.17s (- 2.09%) 7.87s 7.93s p=0.005 n=6
Total Time 22.45s (± 0.20%) 22.29s (± 0.18%) -0.16s (- 0.71%) 22.24s 22.36s p=0.005 n=6
Compiler-Unions - node (v16.17.1, x64)
Memory used 191,372k (± 0.05%) 191,904k (± 0.67%) ~ 191,322k 194,527k p=0.378 n=6
Parse Time 1.56s (± 1.24%) 1.56s (± 1.02%) ~ 1.55s 1.59s p=1.000 n=6
Bind Time 0.82s (± 0.63%) 0.82s (± 0.63%) ~ 0.81s 0.82s p=1.000 n=6
Check Time 10.02s (± 0.25%) 10.08s (± 0.28%) +0.07s (+ 0.65%) 10.04s 10.11s p=0.006 n=6
Emit Time 3.07s (± 0.67%) 3.01s (± 0.62%) -0.06s (- 1.95%) 2.99s 3.03s p=0.005 n=6
Total Time 15.47s (± 0.29%) 15.48s (± 0.30%) ~ 15.42s 15.54s p=0.687 n=6
Monaco - node (v16.17.1, x64)
Memory used 343,158k (± 0.01%) 343,068k (± 0.00%) -90k (- 0.03%) 343,045k 343,080k p=0.005 n=6
Parse Time 2.80s (± 0.67%) 2.80s (± 0.70%) ~ 2.78s 2.84s p=0.357 n=6
Bind Time 1.08s (± 0.38%) 1.08s (± 1.01%) ~ 1.06s 1.09s p=1.000 n=6
Check Time 7.66s (± 0.36%) 7.67s (± 0.42%) ~ 7.63s 7.71s p=0.871 n=6
Emit Time 4.53s (± 0.81%) 4.43s (± 0.40%) -0.11s (- 2.35%) 4.40s 4.44s p=0.005 n=6
Total Time 16.07s (± 0.47%) 15.98s (± 0.30%) -0.10s (- 0.59%) 15.94s 16.05s p=0.035 n=6
TFS - node (v16.17.1, x64)
Memory used 299,265k (± 0.01%) 299,236k (± 0.00%) -29k (- 0.01%) 299,212k 299,249k p=0.045 n=6
Parse Time 2.19s (± 0.47%) 2.19s (± 0.38%) ~ 2.19s 2.21s p=0.788 n=6
Bind Time 1.24s (± 0.98%) 1.24s (± 0.41%) ~ 1.24s 1.25s p=0.351 n=6
Check Time 7.16s (± 0.50%) 7.19s (± 0.58%) ~ 7.12s 7.23s p=0.169 n=6
Emit Time 4.24s (± 0.69%) 4.34s (± 1.35%) +0.10s (+ 2.48%) 4.29s 4.45s p=0.005 n=6
Total Time 14.83s (± 0.32%) 14.97s (± 0.57%) +0.14s (+ 0.97%) 14.91s 15.14s p=0.006 n=6
material-ui - node (v16.17.1, x64)
Memory used 475,473k (± 0.00%) 475,471k (± 0.00%) ~ 475,455k 475,495k p=0.336 n=6
Parse Time 3.32s (± 0.23%) 3.33s (± 0.41%) ~ 3.31s 3.35s p=0.931 n=6
Bind Time 0.96s (± 0.54%) 0.96s (± 0.00%) ~ 0.96s 0.96s p=0.174 n=6
Check Time 18.04s (± 0.31%) 17.99s (± 0.29%) ~ 17.91s 18.07s p=0.169 n=6
Emit Time 0.00s (± 0.00%) 0.00s (± 0.00%) ~ 0.00s 0.00s p=1.000 n=6
Total Time 22.32s (± 0.24%) 22.27s (± 0.28%) ~ 22.19s 22.38s p=0.199 n=6
xstate - node (v16.17.1, x64)
Memory used 545,751k (± 0.01%) 545,679k (± 0.02%) ~ 545,594k 545,829k p=0.173 n=6
Parse Time 4.25s (± 0.47%) 4.24s (± 0.38%) ~ 4.22s 4.26s p=0.370 n=6
Bind Time 1.74s (± 0.36%) 1.75s (± 0.31%) ~ 1.74s 1.75s p=0.201 n=6
Check Time 2.97s (± 0.46%) 2.97s (± 0.35%) ~ 2.96s 2.99s p=0.870 n=6
Emit Time 0.10s (± 5.76%) 0.09s (± 5.53%) ~ 0.09s 0.10s p=0.640 n=6
Total Time 9.05s (± 0.33%) 9.05s (± 0.30%) ~ 9.02s 9.09s p=0.627 n=6
Angular - node (v14.15.1, x64)
Memory used 352,559k (± 0.00%) 352,560k (± 0.00%) ~ 352,550k 352,568k p=0.936 n=6
Parse Time 3.71s (± 0.37%) 3.72s (± 0.50%) ~ 3.69s 3.74s p=0.935 n=6
Bind Time 1.25s (± 0.65%) 1.24s (± 0.33%) ~ 1.24s 1.25s p=0.248 n=6
Check Time 9.80s (± 0.44%) 9.80s (± 0.31%) ~ 9.77s 9.85s p=0.808 n=6
Emit Time 8.38s (± 0.56%) 8.31s (± 0.62%) ~ 8.26s 8.38s p=0.073 n=6
Total Time 23.14s (± 0.25%) 23.06s (± 0.21%) ~ 23.02s 23.13s p=0.065 n=6
Compiler-Unions - node (v14.15.1, x64)
Memory used 186,652k (± 0.02%) 187,124k (± 0.68%) ~ 186,581k 189,741k p=0.092 n=6
Parse Time 1.58s (± 0.48%) 1.58s (± 0.35%) ~ 1.57s 1.58s p=0.137 n=6
Bind Time 0.84s (± 0.00%) 0.84s (± 0.75%) ~ 0.83s 0.85s p=1.000 n=6
Check Time 10.14s (± 0.42%) 10.19s (± 0.41%) ~ 10.14s 10.24s p=0.089 n=6
Emit Time 3.14s (± 1.21%) 3.11s (± 0.94%) ~ 3.07s 3.15s p=0.221 n=6
Total Time 15.70s (± 0.14%) 15.72s (± 0.42%) ~ 15.63s 15.79s p=0.747 n=6
Monaco - node (v14.15.1, x64)
Memory used 338,109k (± 0.01%) 338,049k (± 0.01%) -60k (- 0.02%) 338,021k 338,077k p=0.005 n=6
Parse Time 2.88s (± 0.47%) 2.89s (± 1.19%) ~ 2.87s 2.96s p=0.805 n=6
Bind Time 1.09s (± 0.37%) 1.09s (± 0.58%) ~ 1.08s 1.10s p=0.673 n=6
Check Time 8.09s (± 0.57%) 8.07s (± 0.63%) ~ 8.00s 8.15s p=0.627 n=6
Emit Time 4.78s (± 0.67%) 4.66s (± 0.48%) -0.12s (- 2.44%) 4.62s 4.68s p=0.005 n=6
Total Time 16.84s (± 0.18%) 16.71s (± 0.27%) -0.13s (- 0.77%) 16.65s 16.78s p=0.005 n=6
TFS - node (v14.15.1, x64)
Memory used 294,271k (± 0.00%) 294,260k (± 0.00%) ~ 294,246k 294,271k p=0.107 n=6
Parse Time 2.39s (± 0.49%) 2.37s (± 0.53%) -0.02s (- 0.77%) 2.35s 2.38s p=0.040 n=6
Bind Time 1.06s (± 0.49%) 1.06s (± 0.49%) ~ 1.06s 1.07s p=1.000 n=6
Check Time 7.46s (± 0.71%) 7.46s (± 0.38%) ~ 7.41s 7.49s p=1.000 n=6
Emit Time 4.61s (± 0.65%) 4.27s (± 0.57%) 🟩-0.35s (- 7.51%) 4.25s 4.31s p=0.005 n=6
Total Time 15.53s (± 0.52%) 15.16s (± 0.29%) -0.37s (- 2.35%) 15.10s 15.21s p=0.005 n=6
material-ui - node (v14.15.1, x64)
Memory used 471,129k (± 0.00%) 471,134k (± 0.01%) ~ 471,096k 471,164k p=0.748 n=6
Parse Time 3.48s (± 0.34%) 3.48s (± 0.38%) ~ 3.46s 3.50s p=0.933 n=6
Bind Time 0.99s (± 0.41%) 1.00s (± 0.55%) ~ 0.99s 1.00s p=0.282 n=6
Check Time 18.87s (± 0.36%) 18.89s (± 0.36%) ~ 18.81s 18.98s p=0.810 n=6
Emit Time 0.00s (± 0.00%) 0.00s (± 0.00%) ~ 0.00s 0.00s p=1.000 n=6
Total Time 23.35s (± 0.29%) 23.37s (± 0.27%) ~ 23.28s 23.46s p=0.630 n=6
xstate - node (v14.15.1, x64)
Memory used 534,421k (± 0.00%) 534,398k (± 0.00%) -23k (- 0.00%) 534,379k 534,416k p=0.045 n=6
Parse Time 4.59s (± 0.51%) 4.58s (± 0.51%) ~ 4.55s 4.61s p=0.517 n=6
Bind Time 1.67s (± 0.31%) 1.66s (± 0.45%) ~ 1.65s 1.67s p=0.247 n=6
Check Time 3.13s (± 0.47%) 3.12s (± 0.39%) ~ 3.11s 3.14s p=0.084 n=6
Emit Time 0.10s (± 0.00%) 0.09s (± 4.45%) 🟩-0.01s (- 8.33%) 0.09s 0.10s p=0.007 n=6
Total Time 9.49s (± 0.17%) 9.46s (± 0.16%) -0.04s (- 0.39%) 9.43s 9.47s p=0.010 n=6
System
Machine Namets-ci-ubuntu
Platformlinux 5.4.0-135-generic
Architecturex64
Available Memory16 GB
Available Memory15 GB
CPUs4 × Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz
Hosts
  • node (v18.10.0, x64)
  • node (v16.17.1, x64)
  • node (v14.15.1, x64)
Scenarios
  • Angular - node (v18.10.0, x64)
  • Angular - node (v16.17.1, x64)
  • Angular - node (v14.15.1, x64)
  • Compiler-Unions - node (v18.10.0, x64)
  • Compiler-Unions - node (v16.17.1, x64)
  • Compiler-Unions - node (v14.15.1, x64)
  • Monaco - node (v18.10.0, x64)
  • Monaco - node (v16.17.1, x64)
  • Monaco - node (v14.15.1, x64)
  • TFS - node (v18.10.0, x64)
  • TFS - node (v16.17.1, x64)
  • TFS - node (v14.15.1, x64)
  • material-ui - node (v18.10.0, x64)
  • material-ui - node (v16.17.1, x64)
  • material-ui - node (v14.15.1, x64)
  • xstate - node (v18.10.0, x64)
  • xstate - node (v16.17.1, x64)
  • xstate - node (v14.15.1, x64)
Benchmark Name Iterations
Current 52906 6
Baseline main 6

TSServer

Comparison Report - main..52906
Metric main 52906 Delta Best Worst p-value
Compiler-UnionsTSServer - node (v18.10.0, x64)
Req 1 - updateOpen 2,361ms (± 0.29%) 2,367ms (± 0.57%) ~ 2,348ms 2,387ms p=0.336 n=6
Req 2 - geterr 5,305ms (± 0.48%) 5,310ms (± 0.68%) ~ 5,269ms 5,366ms p=0.936 n=6
Req 3 - references 338ms (± 1.02%) 336ms (± 0.62%) ~ 332ms 337ms p=0.254 n=6
Req 4 - navto 284ms (± 0.73%) 284ms (± 0.99%) ~ 281ms 287ms p=0.933 n=6
Req 5 - completionInfo count 1,356 (± 0.00%) 1,356 (± 0.00%) ~ 1,356 1,356 p=1.000 n=6
Req 5 - completionInfo 72ms (± 3.77%) 73ms (± 3.11%) ~ 71ms 77ms p=0.351 n=6
CompilerTSServer - node (v18.10.0, x64)
Req 1 - updateOpen 2,464ms (± 0.97%) 2,459ms (± 0.57%) ~ 2,445ms 2,479ms p=0.873 n=6
Req 2 - geterr 3,995ms (± 1.05%) 4,007ms (± 0.31%) ~ 3,990ms 4,021ms p=0.470 n=6
Req 3 - references 351ms (± 0.52%) 352ms (± 0.59%) ~ 349ms 355ms p=0.255 n=6
Req 4 - navto 293ms (± 1.14%) 292ms (± 0.37%) ~ 291ms 293ms p=0.663 n=6
Req 5 - completionInfo count 1,518 (± 0.00%) 1,518 (± 0.00%) ~ 1,518 1,518 p=1.000 n=6
Req 5 - completionInfo 68ms (± 2.84%) 68ms (± 0.00%) ~ 68ms 68ms p=0.290 n=6
xstateTSServer - node (v18.10.0, x64)
Req 1 - updateOpen 3,154ms (± 0.60%) 3,162ms (± 1.22%) ~ 3,105ms 3,215ms p=0.575 n=6
Req 2 - geterr 1,622ms (± 0.63%) 1,615ms (± 0.20%) ~ 1,610ms 1,619ms p=0.166 n=6
Req 3 - references 104ms (± 1.87%) 103ms (± 1.14%) ~ 101ms 104ms p=0.462 n=6
Req 4 - navto 358ms (± 0.60%) 357ms (± 0.61%) ~ 353ms 359ms p=0.255 n=6
Req 5 - completionInfo count 3,136 (± 0.00%) 3,136 (± 0.00%) ~ 3,136 3,136 p=1.000 n=6
Req 5 - completionInfo 428ms (± 1.15%) 431ms (± 0.74%) ~ 428ms 435ms p=0.172 n=6
Compiler-UnionsTSServer - node (v16.17.1, x64)
Req 1 - updateOpen 2,537ms (± 0.48%) 2,517ms (± 0.81%) ~ 2,489ms 2,547ms p=0.093 n=6
Req 2 - geterr 5,712ms (± 0.25%) 5,684ms (± 0.29%) -28ms (- 0.48%) 5,670ms 5,712ms p=0.024 n=6
Req 3 - references 350ms (± 0.74%) 348ms (± 0.84%) ~ 346ms 354ms p=0.293 n=6
Req 4 - navto 281ms (± 2.41%) 279ms (± 0.75%) ~ 276ms 281ms p=0.936 n=6
Req 5 - completionInfo count 1,356 (± 0.00%) 1,356 (± 0.00%) ~ 1,356 1,356 p=1.000 n=6
Req 5 - completionInfo 84ms (± 2.24%) 82ms (± 4.43%) ~ 76ms 85ms p=0.558 n=6
CompilerTSServer - node (v16.17.1, x64)
Req 1 - updateOpen 2,647ms (± 0.75%) 2,656ms (± 0.55%) ~ 2,637ms 2,673ms p=0.378 n=6
Req 2 - geterr 4,346ms (± 0.26%) 4,348ms (± 0.33%) ~ 4,322ms 4,364ms p=0.630 n=6
Req 3 - references 365ms (± 0.77%) 364ms (± 1.24%) ~ 357ms 370ms p=0.746 n=6
Req 4 - navto 288ms (± 1.17%) 288ms (± 1.29%) ~ 283ms 293ms p=0.806 n=6
Req 5 - completionInfo count 1,518 (± 0.00%) 1,518 (± 0.00%) ~ 1,518 1,518 p=1.000 n=6
Req 5 - completionInfo 73ms (± 1.50%) 73ms (± 1.34%) ~ 72ms 75ms p=0.718 n=6
xstateTSServer - node (v16.17.1, x64)
Req 1 - updateOpen 3,326ms (± 0.61%) 3,324ms (± 0.36%) ~ 3,310ms 3,339ms p=0.748 n=6
Req 2 - geterr 1,897ms (± 4.71%) 1,840ms (± 5.82%) ~ 1,753ms 1,985ms p=0.298 n=6
Req 3 - references 110ms (± 1.21%) 110ms (± 1.88%) ~ 107ms 113ms p=0.743 n=6
Req 4 - navto 344ms (± 1.31%) 343ms (± 1.19%) ~ 338ms 348ms p=0.935 n=6
Req 5 - completionInfo count 3,136 (± 0.00%) 3,136 (± 0.00%) ~ 3,136 3,136 p=1.000 n=6
Req 5 - completionInfo 433ms (± 1.12%) 433ms (± 0.77%) ~ 430ms 438ms p=0.936 n=6
Compiler-UnionsTSServer - node (v14.15.1, x64)
Req 1 - updateOpen 2,575ms (± 0.28%) 2,576ms (± 0.54%) ~ 2,553ms 2,595ms p=0.572 n=6
Req 2 - geterr 6,032ms (± 0.62%) 6,014ms (± 0.45%) ~ 5,966ms 6,038ms p=0.423 n=6
Req 3 - references 368ms (± 1.52%) 364ms (± 0.22%) ~ 363ms 365ms p=0.683 n=6
Req 4 - navto 277ms (± 1.40%) 278ms (± 1.34%) ~ 275ms 285ms p=1.000 n=6
Req 5 - completionInfo count 1,356 (± 0.00%) 1,356 (± 0.00%) ~ 1,356 1,356 p=1.000 n=6
Req 5 - completionInfo 100ms (± 2.45%) 100ms (± 2.40%) ~ 95ms 101ms p=0.673 n=6
CompilerTSServer - node (v14.15.1, x64)
Req 1 - updateOpen 2,796ms (± 0.19%) 2,791ms (± 0.85%) ~ 2,753ms 2,816ms p=0.936 n=6
Req 2 - geterr 4,484ms (± 2.84%) 4,436ms (± 1.79%) ~ 4,394ms 4,598ms p=0.470 n=6
Req 3 - references 379ms (± 0.83%) 379ms (± 0.60%) ~ 375ms 381ms p=0.934 n=6
Req 4 - navto 294ms (± 0.87%) 294ms (± 1.23%) ~ 289ms 298ms p=0.743 n=6
Req 5 - completionInfo count 1,518 (± 0.00%) 1,518 (± 0.00%) ~ 1,518 1,518 p=1.000 n=6
Req 5 - completionInfo 90ms (±10.44%) 93ms (±10.81%) ~ 83ms 102ms p=0.739 n=6
xstateTSServer - node (v14.15.1, x64)
Req 1 - updateOpen 3,651ms (± 0.33%) 3,642ms (± 0.43%) ~ 3,623ms 3,668ms p=0.296 n=6
Req 2 - geterr 1,798ms (± 0.84%) 1,800ms (± 0.70%) ~ 1,784ms 1,814ms p=0.872 n=6
Req 3 - references 128ms (± 3.46%) 128ms (± 1.68%) ~ 124ms 130ms p=0.624 n=6
Req 4 - navto 372ms (± 1.74%) 373ms (± 1.23%) ~ 365ms 379ms p=0.872 n=6
Req 5 - completionInfo count 3,136 (± 0.00%) 3,136 (± 0.00%) ~ 3,136 3,136 p=1.000 n=6
Req 5 - completionInfo 451ms (± 1.81%) 456ms (± 2.17%) ~ 448ms 473ms p=0.630 n=6
System
Machine Namets-ci-ubuntu
Platformlinux 5.4.0-135-generic
Architecturex64
Available Memory16 GB
Available Memory15 GB
CPUs4 × Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz
Hosts
  • node (v18.10.0, x64)
  • node (v16.17.1, x64)
  • node (v14.15.1, x64)
Scenarios
  • Compiler-UnionsTSServer - node (v18.10.0, x64)
  • Compiler-UnionsTSServer - node (v16.17.1, x64)
  • Compiler-UnionsTSServer - node (v14.15.1, x64)
  • CompilerTSServer - node (v18.10.0, x64)
  • CompilerTSServer - node (v16.17.1, x64)
  • CompilerTSServer - node (v14.15.1, x64)
  • xstateTSServer - node (v18.10.0, x64)
  • xstateTSServer - node (v16.17.1, x64)
  • xstateTSServer - node (v14.15.1, x64)
Benchmark Name Iterations
Current 52906 6
Baseline main 6

Startup

Comparison Report - main..52906
Metric main 52906 Delta Best Worst p-value
tsc-startup - node (v16.17.1, x64)
Execution time 142.63ms (± 0.21%) 142.24ms (± 0.18%) -0.38ms (- 0.27%) 141.54ms 145.60ms p=0.000 n=600
tsserver-startup - node (v16.17.1, x64)
Execution time 226.76ms (± 0.15%) 226.38ms (± 0.17%) -0.39ms (- 0.17%) 225.36ms 232.03ms p=0.000 n=600
tsserverlibrary-startup - node (v16.17.1, x64)
Execution time 228.79ms (± 0.14%) 228.27ms (± 0.15%) -0.53ms (- 0.23%) 227.37ms 233.79ms p=0.000 n=600
typescript-startup - node (v16.17.1, x64)
Execution time 209.75ms (± 0.15%) 209.12ms (± 0.19%) -0.63ms (- 0.30%) 208.38ms 216.49ms p=0.000 n=600
System
Machine Namets-ci-ubuntu
Platformlinux 5.4.0-135-generic
Architecturex64
Available Memory16 GB
Available Memory15 GB
CPUs4 × Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz
Hosts
  • node (v16.17.1, x64)
Scenarios
  • tsc-startup - node (v16.17.1, x64)
  • tsserver-startup - node (v16.17.1, x64)
  • tsserverlibrary-startup - node (v16.17.1, x64)
  • typescript-startup - node (v16.17.1, x64)
Benchmark Name Iterations
Current 52906 6
Baseline main 6

Developer Information:

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DanielRosenwasser
DanielRosenwasser reviewed Feb 22, 2023
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src/compiler/utilities.ts
function createSingleLineStringWriter(): EmitTextWriter {
let str = "";
/* eslint-disable no-var */
var str = "";
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@DanielRosenwasser DanielRosenwasser Feb 22, 2023

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This one is funny.

@jakebailey jakebailey merged commit b39f10f into microsoft:main Feb 22, 2023
@jakebailey jakebailey deleted the let-const-emitter branch February 22, 2023 19:45
@DanielRosenwasser DanielRosenwasser mentioned this pull request Feb 22, 2023
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@DanielRosenwasser DanielRosenwasser DanielRosenwasser approved these changes

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@jakebailey jakebailey

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@jakebailey @typescript-bot @DanielRosenwasser