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GeezerVison is showing github.com — Refactor wrapSymbolTrackerToReportForContext to improve perf by rbuckton · Pull Request #51788 · microsoft/TypeScript

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@rbuckton

@rbuckton Ron Buckton (rbuckton) commented Dec 6, 2022

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In the same vein as #51682, this refactors a function that was extremely polymorphic/megamorphic that seems to account for a significant percentage of emit time in some of our benchmarks.

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@typescript-bot TypeScript Bot (typescript-bot) assigned Ron Buckton (rbuckton) Dec 6, 2022
@typescript-bot TypeScript Bot (typescript-bot) added Author: Team For Uncommitted Bug PR for untriaged, rejected, closed or missing bug labels Dec 6, 2022
@rbuckton

Ron Buckton (rbuckton) commented Dec 6, 2022

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

TypeScript Bot (typescript-bot) commented Dec 6, 2022 •
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Heya Ron Buckton (@rbuckton), I've started to run the perf test suite on this PR at 9f8b104. You can monitor the build here.

Update: The results are in!
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@rbuckton
Refactor wrapSymbolTrackerToReportForContext to improve perf
f9d7f85
@rbuckton
Ron Buckton (rbuckton) force-pushed the symboltracker-perf branch from 9f8b104 to f9d7f85 Compare December 6, 2022 20:38
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TypeScript Bot (typescript-bot) commented Dec 6, 2022

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Ron Buckton (@rbuckton)
The results of the perf run you requested are in!

Here they are:

Compiler

Comparison Report - main..51788
Metric main 51788 Delta Best Worst
Angular - node (v18.10.0, x64)
Memory used 341,078k (± 0.01%) 341,052k (± 0.02%) -26k (- 0.01%) 340,923k 341,154k
Parse Time 1.56s (± 0.95%) 1.58s (± 0.56%) +0.01s (+ 0.90%) 1.56s 1.59s
Bind Time 0.52s (± 0.57%) 0.53s (± 1.82%) +0.00s (+ 0.57%) 0.51s 0.56s
Check Time 4.02s (± 0.50%) 4.00s (± 0.73%) -0.02s (- 0.60%) 3.94s 4.08s
Emit Time 4.28s (± 1.04%) 4.29s (± 1.10%) +0.01s (+ 0.23%) 4.19s 4.38s
Total Time 10.38s (± 0.57%) 10.38s (± 0.61%) +0.00s (+ 0.02%) 10.27s 10.51s
Compiler-Unions - node (v18.10.0, x64)
Memory used 186,211k (± 0.89%) 187,350k (± 1.10%) +1,139k (+ 0.61%) 185,055k 190,794k
Parse Time 0.61s (± 0.85%) 0.61s (± 0.81%) +0.01s (+ 0.99%) 0.61s 0.63s
Bind Time 0.32s (± 1.05%) 0.33s (± 1.14%) +0.00s (+ 0.62%) 0.32s 0.33s
Check Time 5.04s (± 0.60%) 5.04s (± 0.69%) +0.01s (+ 0.18%) 4.95s 5.11s
Emit Time 1.56s (± 1.78%) 1.57s (± 1.22%) +0.01s (+ 0.51%) 1.53s 1.63s
Total Time 7.53s (± 0.45%) 7.55s (± 0.57%) +0.02s (+ 0.32%) 7.46s 7.66s
Monaco - node (v18.10.0, x64)
Memory used 320,461k (± 0.02%) 320,448k (± 0.02%) -13k (- 0.00%) 320,283k 320,608k
Parse Time 1.15s (± 1.19%) 1.15s (± 0.71%) -0.00s (- 0.26%) 1.13s 1.17s
Bind Time 0.49s (± 1.37%) 0.49s (± 1.06%) +0.00s (+ 0.82%) 0.48s 0.50s
Check Time 3.85s (± 0.71%) 3.80s (± 0.32%) -0.05s (- 1.25%) 3.77s 3.82s
Emit Time 2.25s (± 0.81%) 2.25s (± 1.20%) -0.00s (- 0.13%) 2.20s 2.33s
Total Time 7.74s (± 0.49%) 7.69s (± 0.51%) -0.05s (- 0.67%) 7.62s 7.80s
TFS - node (v18.10.0, x64)
Memory used 283,529k (± 0.24%) 283,099k (± 0.15%) -431k (- 0.15%) 282,825k 284,821k
Parse Time 0.94s (± 1.10%) 0.96s (± 1.89%) +0.02s (+ 2.34%) 0.94s 1.03s
Bind Time 0.44s (± 2.55%) 0.49s (± 8.59%) +0.04s (+ 9.98%) 0.43s 0.57s
Check Time 3.78s (± 0.52%) 3.53s (± 0.62%) 🟩-0.25s (- 6.53%) 3.49s 3.58s
Emit Time 2.20s (± 0.60%) 2.21s (± 0.92%) +0.01s (+ 0.45%) 2.17s 2.27s
Total Time 7.36s (± 0.36%) 7.19s (± 0.86%) -0.17s (- 2.31%) 7.07s 7.33s
material-ui - node (v18.10.0, x64)
Memory used 435,993k (± 0.02%) 435,994k (± 0.02%) +1k (+ 0.00%) 435,871k 436,135k
Parse Time 1.31s (± 0.72%) 1.32s (± 0.68%) +0.00s (+ 0.08%) 1.30s 1.34s
Bind Time 0.49s (± 0.74%) 0.49s (± 2.76%) -0.01s (- 1.82%) 0.45s 0.50s
Check Time 10.32s (± 1.35%) 10.22s (± 0.62%) -0.10s (- 0.96%) 10.11s 10.36s
Emit Time 0.00s (± 0.00%) 0.00s (± 0.00%) 0.00s ( NaN%) 0.00s 0.00s
Total Time 12.13s (± 1.22%) 12.02s (± 0.59%) -0.11s (- 0.87%) 11.90s 12.19s
xstate - node (v18.10.0, x64)
Memory used 518,432k (± 0.02%) 518,423k (± 0.01%) -9k (- 0.00%) 518,277k 518,587k
Parse Time 1.87s (± 0.35%) 1.88s (± 0.55%) +0.01s (+ 0.53%) 1.86s 1.90s
Bind Time 0.69s (± 2.45%) 0.70s (± 2.12%) +0.01s (+ 1.29%) 0.69s 0.76s
Check Time 1.04s (± 1.07%) 1.05s (± 0.85%) +0.00s (+ 0.10%) 1.03s 1.07s
Emit Time 0.05s (± 0.00%) 0.05s (± 0.00%) 0.00s ( 0.00%) 0.05s 0.05s
Total Time 3.67s (± 0.61%) 3.69s (± 0.50%) +0.02s (+ 0.52%) 3.65s 3.74s
Angular - node (v16.17.1, x64)
Memory used 340,521k (± 0.01%) 340,486k (± 0.02%) -35k (- 0.01%) 340,273k 340,576k
Parse Time 1.86s (± 0.77%) 1.88s (± 0.59%) +0.01s (+ 0.75%) 1.85s 1.90s
Bind Time 0.64s (± 0.53%) 0.65s (± 0.56%) +0.00s (+ 0.47%) 0.64s 0.65s
Check Time 5.16s (± 0.63%) 5.13s (± 0.50%) -0.02s (- 0.43%) 5.09s 5.19s
Emit Time 5.12s (± 0.74%) 5.14s (± 1.47%) +0.02s (+ 0.45%) 5.06s 5.42s
Total Time 12.78s (± 0.55%) 12.80s (± 0.82%) +0.02s (+ 0.15%) 12.66s 13.16s
Compiler-Unions - node (v16.17.1, x64)
Memory used 187,657k (± 0.59%) 187,280k (± 0.52%) -377k (- 0.20%) 186,579k 189,896k
Parse Time 0.79s (± 0.87%) 0.80s (± 0.77%) +0.01s (+ 1.65%) 0.79s 0.81s
Bind Time 0.42s (± 1.18%) 0.42s (± 0.95%) +0.00s (+ 0.72%) 0.41s 0.43s
Check Time 6.06s (± 0.50%) 6.04s (± 0.37%) -0.02s (- 0.25%) 6.00s 6.11s
Emit Time 1.94s (± 0.72%) 1.95s (± 1.26%) +0.02s (+ 0.88%) 1.90s 2.03s
Total Time 9.20s (± 0.42%) 9.21s (± 0.39%) +0.01s (+ 0.15%) 9.15s 9.33s
Monaco - node (v16.17.1, x64)
Memory used 319,781k (± 0.02%) 319,757k (± 0.01%) -25k (- 0.01%) 319,695k 319,838k
Parse Time 1.40s (± 0.92%) 1.42s (± 0.57%) +0.02s (+ 1.65%) 1.41s 1.44s
Bind Time 0.59s (± 0.98%) 0.59s (± 0.57%) -0.00s (- 0.00%) 0.59s 0.60s
Check Time 4.87s (± 0.79%) 4.84s (± 0.35%) -0.03s (- 0.66%) 4.80s 4.88s
Emit Time 2.74s (± 1.24%) 2.74s (± 0.55%) -0.00s (- 0.15%) 2.70s 2.77s
Total Time 9.61s (± 0.67%) 9.59s (± 0.34%) -0.02s (- 0.17%) 9.53s 9.65s
TFS - node (v16.17.1, x64)
Memory used 282,262k (± 0.02%) 282,257k (± 0.02%) -5k (- 0.00%) 282,081k 282,313k
Parse Time 1.16s (± 1.34%) 1.16s (± 0.93%) -0.00s (- 0.09%) 1.13s 1.18s
Bind Time 0.63s (± 5.62%) 0.65s (± 4.38%) +0.02s (+ 3.82%) 0.57s 0.70s
Check Time 4.75s (± 0.61%) 4.52s (± 0.40%) 🟩-0.23s (- 4.87%) 4.46s 4.54s
Emit Time 2.79s (± 1.88%) 2.77s (± 1.92%) -0.02s (- 0.82%) 2.67s 2.88s
Total Time 9.33s (± 0.57%) 9.10s (± 0.72%) -0.23s (- 2.46%) 8.94s 9.21s
material-ui - node (v16.17.1, x64)
Memory used 435,303k (± 0.00%) 435,311k (± 0.01%) +8k (+ 0.00%) 435,259k 435,357k
Parse Time 1.61s (± 0.28%) 1.64s (± 0.58%) +0.02s (+ 1.43%) 1.61s 1.65s
Bind Time 0.50s (± 0.74%) 0.51s (± 0.67%) +0.00s (+ 0.40%) 0.50s 0.51s
Check Time 11.77s (± 0.62%) 11.84s (± 0.70%) +0.07s (+ 0.63%) 11.64s 12.02s
Emit Time 0.00s (± 0.00%) 0.00s (± 0.00%) 0.00s ( NaN%) 0.00s 0.00s
Total Time 13.89s (± 0.51%) 13.98s (± 0.61%) +0.10s (+ 0.71%) 13.79s 14.18s
xstate - node (v16.17.1, x64)
Memory used 515,998k (± 0.01%) 515,978k (± 0.01%) -21k (- 0.00%) 515,836k 516,158k
Parse Time 2.25s (± 0.26%) 2.26s (± 0.54%) +0.01s (+ 0.27%) 2.23s 2.29s
Bind Time 0.82s (± 1.17%) 0.82s (± 0.81%) +0.01s (+ 0.86%) 0.81s 0.84s
Check Time 1.35s (± 0.60%) 1.36s (± 0.77%) +0.01s (+ 0.59%) 1.34s 1.38s
Emit Time 0.06s (± 0.00%) 0.06s (± 0.00%) 0.00s ( 0.00%) 0.06s 0.06s
Total Time 4.49s (± 0.29%) 4.51s (± 0.33%) +0.02s (+ 0.36%) 4.48s 4.54s
Angular - node (v14.15.1, x64)
Memory used 333,987k (± 0.00%) 333,975k (± 0.01%) -12k (- 0.00%) 333,927k 334,030k
Parse Time 2.03s (± 0.33%) 2.04s (± 0.60%) +0.01s (+ 0.44%) 2.02s 2.07s
Bind Time 0.70s (± 0.68%) 0.70s (± 0.67%) +0.00s (+ 0.43%) 0.69s 0.71s
Check Time 5.50s (± 0.70%) 5.50s (± 0.58%) -0.00s (- 0.02%) 5.44s 5.57s
Emit Time 5.34s (± 0.63%) 5.33s (± 0.49%) -0.01s (- 0.17%) 5.27s 5.39s
Total Time 13.57s (± 0.45%) 13.56s (± 0.41%) -0.00s (- 0.02%) 13.46s 13.72s
Compiler-Unions - node (v14.15.1, x64)
Memory used 183,361k (± 0.68%) 182,248k (± 0.57%) -1,113k (- 0.61%) 181,050k 185,080k
Parse Time 0.89s (± 0.63%) 0.90s (± 1.24%) +0.01s (+ 0.90%) 0.88s 0.93s
Bind Time 0.45s (± 0.75%) 0.45s (± 0.66%) -0.00s (- 0.22%) 0.45s 0.46s
Check Time 6.34s (± 0.50%) 6.39s (± 0.70%) +0.05s (+ 0.77%) 6.28s 6.46s
Emit Time 2.04s (± 0.57%) 2.08s (± 1.04%) +0.04s (+ 1.81%) 2.05s 2.15s
Total Time 9.72s (± 0.42%) 9.82s (± 0.53%) +0.10s (+ 1.00%) 9.68s 9.90s
Monaco - node (v14.15.1, x64)
Memory used 314,583k (± 0.01%) 314,578k (± 0.01%) -4k (- 0.00%) 314,535k 314,659k
Parse Time 1.55s (± 0.68%) 1.56s (± 0.64%) +0.01s (+ 0.71%) 1.54s 1.59s
Bind Time 0.63s (± 0.94%) 0.63s (± 0.71%) -0.00s (- 0.32%) 0.62s 0.64s
Check Time 5.19s (± 0.48%) 5.16s (± 0.46%) -0.03s (- 0.60%) 5.09s 5.20s
Emit Time 2.91s (± 0.78%) 2.87s (± 0.96%) -0.03s (- 1.17%) 2.80s 2.94s
Total Time 10.28s (± 0.48%) 10.23s (± 0.39%) -0.05s (- 0.53%) 10.15s 10.32s
TFS - node (v14.15.1, x64)
Memory used 279,370k (± 0.01%) 279,365k (± 0.01%) -5k (- 0.00%) 279,307k 279,426k
Parse Time 1.33s (± 0.98%) 1.33s (± 0.62%) +0.01s (+ 0.68%) 1.32s 1.35s
Bind Time 0.59s (± 0.62%) 0.59s (± 0.76%) +0.00s (+ 0.34%) 0.58s 0.60s
Check Time 5.10s (± 0.40%) 4.82s (± 0.43%) 🟩-0.27s (- 5.37%) 4.79s 4.90s
Emit Time 3.08s (± 0.64%) 3.06s (± 0.47%) -0.01s (- 0.42%) 3.03s 3.10s
Total Time 10.08s (± 0.21%) 9.81s (± 0.33%) -0.27s (- 2.69%) 9.76s 9.92s
material-ui - node (v14.15.1, x64)
Memory used 430,756k (± 0.01%) 430,753k (± 0.01%) -4k (- 0.00%) 430,693k 430,810k
Parse Time 1.86s (± 0.50%) 1.86s (± 0.49%) +0.00s (+ 0.16%) 1.85s 1.89s
Bind Time 0.53s (± 0.76%) 0.53s (± 0.90%) -0.00s (- 0.38%) 0.52s 0.54s
Check Time 12.25s (± 0.60%) 12.14s (± 0.57%) -0.11s (- 0.92%) 11.97s 12.35s
Emit Time 0.00s (± 0.00%) 0.00s (± 0.00%) 0.00s ( NaN%) 0.00s 0.00s
Total Time 14.64s (± 0.49%) 14.53s (± 0.51%) -0.11s (- 0.78%) 14.34s 14.75s
xstate - node (v14.15.1, x64)
Memory used 504,406k (± 0.00%) 504,332k (± 0.01%) -74k (- 0.01%) 504,185k 504,405k
Parse Time 2.54s (± 0.33%) 2.55s (± 0.53%) +0.01s (+ 0.51%) 2.52s 2.58s
Bind Time 0.83s (± 0.41%) 0.84s (± 0.66%) +0.01s (+ 1.08%) 0.83s 0.86s
Check Time 1.48s (± 0.71%) 1.47s (± 0.41%) -0.02s (- 1.15%) 1.46s 1.48s
Emit Time 0.07s (± 0.00%) 0.07s (± 0.00%) 0.00s ( 0.00%) 0.07s 0.07s
Total Time 4.93s (± 0.25%) 4.93s (± 0.40%) +0.01s (+ 0.12%) 4.90s 4.98s
System
Machine Namets-ci-ubuntu
Platformlinux 5.4.0-131-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 51788 10
Baseline main 10

TSServer

Comparison Report - main..51788
Metric main 51788 Delta Best Worst
Compiler-UnionsTSServer - node (v18.10.0, x64)
Req 1 - updateOpen 1,048ms (± 0.74%) 1,044ms (± 0.91%) -4ms (- 0.42%) 1,029ms 1,074ms
Req 2 - geterr 2,565ms (± 0.46%) 2,568ms (± 0.42%) +3ms (+ 0.11%) 2,540ms 2,592ms
Req 3 - references 165ms (± 0.34%) 165ms (± 0.69%) 0ms ( 0.00%) 163ms 168ms
Req 4 - navto 137ms (± 0.57%) 137ms (± 0.77%) +0ms (+ 0.07%) 135ms 140ms
Req 5 - completionInfo count 1,356 (± 0.00%) 1,356 (± 0.00%) 0 ( 0.00%) 1,356 1,356
Req 5 - completionInfo 60ms (± 2.17%) 60ms (± 1.92%) +1ms (+ 1.34%) 57ms 62ms
CompilerTSServer - node (v18.10.0, x64)
Req 1 - updateOpen 1,100ms (± 0.44%) 1,106ms (± 0.65%) +6ms (+ 0.50%) 1,084ms 1,121ms
Req 2 - geterr 1,600ms (± 0.95%) 1,603ms (± 0.69%) +4ms (+ 0.24%) 1,584ms 1,632ms
Req 3 - references 167ms (± 0.50%) 168ms (± 0.67%) +1ms (+ 0.60%) 166ms 171ms
Req 4 - navto 150ms (± 0.60%) 151ms (± 0.94%) +1ms (+ 0.67%) 148ms 154ms
Req 5 - completionInfo count 1,518 (± 0.00%) 1,518 (± 0.00%) 0 ( 0.00%) 1,518 1,518
Req 5 - completionInfo 52ms (± 1.70%) 52ms (± 1.70%) 0ms ( 0.00%) 51ms 55ms
xstateTSServer - node (v18.10.0, x64)
Req 1 - updateOpen 1,493ms (± 0.37%) 1,504ms (± 0.72%) +11ms (+ 0.72%) 1,483ms 1,536ms
Req 2 - geterr 553ms (± 0.48%) 558ms (± 0.58%) +5ms (+ 0.94%) 551ms 566ms
Req 3 - references 58ms (± 1.67%) 59ms (± 2.45%) +1ms (+ 1.90%) 57ms 62ms
Req 4 - navto 195ms (± 0.37%) 196ms (± 1.00%) +1ms (+ 0.61%) 193ms 201ms
Req 5 - completionInfo count 3,154 (± 0.00%) 3,154 (± 0.00%) 0 ( 0.00%) 3,154 3,154
Req 5 - completionInfo 212ms (± 0.94%) 213ms (± 1.40%) +1ms (+ 0.61%) 206ms 219ms
Compiler-UnionsTSServer - node (v16.17.1, x64)
Req 1 - updateOpen 1,286ms (± 0.36%) 1,304ms (± 0.64%) +18ms (+ 1.36%) 1,290ms 1,329ms
Req 2 - geterr 3,177ms (± 0.61%) 3,205ms (± 0.70%) +29ms (+ 0.90%) 3,164ms 3,256ms
Req 3 - references 190ms (± 0.76%) 192ms (± 1.00%) +2ms (+ 0.89%) 187ms 195ms
Req 4 - navto 149ms (± 0.91%) 150ms (± 0.40%) +1ms (+ 0.80%) 149ms 152ms
Req 5 - completionInfo count 1,356 (± 0.00%) 1,356 (± 0.00%) 0 ( 0.00%) 1,356 1,356
Req 5 - completionInfo 60ms (± 2.28%) 60ms (± 2.19%) +0ms (+ 0.67%) 57ms 63ms
CompilerTSServer - node (v16.17.1, x64)
Req 1 - updateOpen 1,382ms (± 0.56%) 1,379ms (± 0.70%) -3ms (- 0.20%) 1,360ms 1,402ms
Req 2 - geterr 2,104ms (± 0.73%) 2,105ms (± 0.50%) +1ms (+ 0.06%) 2,087ms 2,130ms
Req 3 - references 197ms (± 0.51%) 198ms (± 0.72%) +1ms (+ 0.41%) 194ms 201ms
Req 4 - navto 165ms (± 1.03%) 164ms (± 1.27%) -1ms (- 0.55%) 159ms 168ms
Req 5 - completionInfo count 1,518 (± 0.00%) 1,518 (± 0.00%) 0 ( 0.00%) 1,518 1,518
Req 5 - completionInfo 55ms (± 2.02%) 55ms (± 1.01%) +0ms (+ 0.18%) 54ms 56ms
xstateTSServer - node (v16.17.1, x64)
Req 1 - updateOpen 1,804ms (± 0.37%) 1,806ms (± 0.56%) +3ms (+ 0.14%) 1,784ms 1,832ms
Req 2 - geterr 715ms (± 0.54%) 720ms (± 0.70%) +4ms (+ 0.60%) 706ms 729ms
Req 3 - references 66ms (± 1.03%) 67ms (± 1.43%) +0ms (+ 0.30%) 65ms 68ms
Req 4 - navto 196ms (± 0.50%) 198ms (± 1.08%) +2ms (+ 0.92%) 194ms 203ms
Req 5 - completionInfo count 3,154 (± 0.00%) 3,154 (± 0.00%) 0 ( 0.00%) 3,154 3,154
Req 5 - completionInfo 252ms (± 0.49%) 255ms (± 0.96%) +3ms (+ 1.07%) 251ms 262ms
Compiler-UnionsTSServer - node (v14.15.1, x64)
Req 1 - updateOpen 1,443ms (± 0.35%) 1,452ms (± 0.54%) +9ms (+ 0.65%) 1,431ms 1,466ms
Req 2 - geterr 3,431ms (± 0.49%) 3,434ms (± 0.40%) +4ms (+ 0.11%) 3,411ms 3,468ms
Req 3 - references 205ms (± 0.47%) 205ms (± 0.81%) +0ms (+ 0.05%) 201ms 208ms
Req 4 - navto 162ms (± 0.70%) 163ms (± 0.95%) +1ms (+ 0.37%) 160ms 167ms
Req 5 - completionInfo count 1,356 (± 0.00%) 1,356 (± 0.00%) 0 ( 0.00%) 1,356 1,356
Req 5 - completionInfo 57ms (± 1.08%) 58ms (± 2.53%) +1ms (+ 1.23%) 56ms 63ms
CompilerTSServer - node (v14.15.1, x64)
Req 1 - updateOpen 1,521ms (± 0.41%) 1,528ms (± 0.45%) +7ms (+ 0.43%) 1,516ms 1,541ms
Req 2 - geterr 2,287ms (± 0.44%) 2,297ms (± 0.47%) +10ms (+ 0.42%) 2,268ms 2,316ms
Req 3 - references 218ms (± 1.20%) 216ms (± 0.66%) -2ms (- 1.01%) 213ms 219ms
Req 4 - navto 173ms (± 0.77%) 174ms (± 0.88%) +2ms (+ 1.04%) 170ms 177ms
Req 5 - completionInfo count 1,518 (± 0.00%) 1,518 (± 0.00%) 0 ( 0.00%) 1,518 1,518
Req 5 - completionInfo 56ms (± 0.89%) 56ms (± 1.20%) +0ms (+ 0.18%) 55ms 58ms
xstateTSServer - node (v14.15.1, x64)
Req 1 - updateOpen 1,984ms (± 0.31%) 1,993ms (± 0.28%) +10ms (+ 0.49%) 1,984ms 2,004ms
Req 2 - geterr 745ms (± 0.30%) 746ms (± 0.44%) +1ms (+ 0.12%) 741ms 752ms
Req 3 - references 72ms (± 1.06%) 72ms (± 1.17%) +1ms (+ 0.70%) 71ms 75ms
Req 4 - navto 219ms (± 0.86%) 219ms (± 0.58%) +0ms (+ 0.09%) 217ms 222ms
Req 5 - completionInfo count 3,154 (± 0.00%) 3,154 (± 0.00%) 0 ( 0.00%) 3,154 3,154
Req 5 - completionInfo 270ms (± 0.86%) 269ms (± 0.70%) -1ms (- 0.37%) 265ms 275ms
System
Machine Namets-ci-ubuntu
Platformlinux 5.4.0-131-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 51788 10
Baseline main 10

Startup

Comparison Report - main..51788
Metric main 51788 Delta Best Worst
tsc-startup - node (v16.17.1, x64)
Execution time 119.27ms (± 0.54%) 117.73ms (± 0.37%) -1.54ms (- 1.29%) 115.63ms 125.05ms
tsserver-startup - node (v16.17.1, x64)
Execution time 199.19ms (± 0.47%) 198.06ms (± 0.27%) -1.13ms (- 0.57%) 194.94ms 204.88ms
tsserverlibrary-startup - node (v16.17.1, x64)
Execution time 193.42ms (± 0.40%) 192.36ms (± 0.29%) -1.06ms (- 0.55%) 189.48ms 200.65ms
typescript-startup - node (v16.17.1, x64)
Execution time 178.18ms (± 0.41%) 177.86ms (± 0.37%) -0.32ms (- 0.18%) 174.90ms 186.57ms
System
Machine Namets-ci-ubuntu
Platformlinux 5.4.0-131-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 51788 10
Baseline main 10

Developer Information:

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@rbuckton Ron Buckton (rbuckton) mentioned this pull request Dec 7, 2022
Reduce polymorphism resulting from unstable Node shapes #51682
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Ron Buckton (rbuckton) commented Dec 7, 2022 •
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I merged this into #51682 while testing for knock-on effects from the two changes. I'm going to close this PR in favor of the combined version in #51682.
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@rbuckton Ron Buckton (rbuckton) closed this Dec 7, 2022
@microsoft Microsoft (microsoft) locked as resolved and limited conversation to collaborators Oct 22, 2025
@jakebailey
Jake Bailey (jakebailey) deleted the symboltracker-perf branch August 28, 2026 19:35
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