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Allow tsc to be run within a node v8 snapshot #55830

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@jakebailey jakebailey commented Sep 22, 2023 •
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This PR switches tsc.js to a wrapper which:

  • Hashes the contents of tsc.js and the Node version to choose a path a snapshot.
  • Checks to see if a cached snapshot is available.
  • If it is, execs that snapshot in a subprocess, passing stdio through.
  • If it isn't, creates a snapshot on a background thread, while running tsc in the foreground.

Startup speed of the wrapper (as of Feb 13, 2024):

Benchmark 1: node ./built/local/tsc.js --version
  Time (mean ± σ):      55.4 ms ±   0.7 ms    [User: 40.2 ms, System: 14.3 ms]
  Range (min … max):    54.1 ms …  57.5 ms    53 runs
 
Benchmark 2: node ./built/local/tscReal.js --version
  Time (mean ± σ):      88.9 ms ±   0.7 ms    [User: 73.3 ms, System: 15.1 ms]
  Range (min … max):    86.9 ms …  90.5 ms    33 runs
 
Benchmark 3: ./tscBun --version
  Time (mean ± σ):     104.6 ms ±   1.0 ms    [User: 96.4 ms, System: 10.2 ms]
  Range (min … max):   102.6 ms … 106.8 ms    28 runs
 
Summary
  'node ./built/local/tsc.js --version' ran
    1.61 ± 0.02 times faster than 'node ./built/local/tscReal.js --version'
    1.89 ± 0.03 times faster than './tscBun --version'

If we just run the blob directly without the wrapper, the speedup would be a lot more:

$ hyperfine 'node ./built/local/tsc.js --version' 'node --snapshot-blob snapshot.blob -- --version'
Benchmark 1: node ./built/local/tsc.js --version
  Time (mean ± σ):      90.7 ms ±   1.6 ms    [User: 78.9 ms, System: 11.5 ms]
  Range (min … max):    87.1 ms …  94.1 ms    31 runs
 
Benchmark 2: node --snapshot-blob snapshot.blob -- --version
  Time (mean ± σ):      29.4 ms ±   0.9 ms    [User: 19.4 ms, System: 9.0 ms]
  Range (min … max):    27.7 ms …  32.3 ms    98 runs
 
Summary
  'node --snapshot-blob snapshot.blob -- --version' ran
    3.09 ± 0.11 times faster than 'node ./built/local/tsc.js --version'

But there's no easy way to have Node do this.

Related: #25658

@typescript-bot typescript-bot added Author: Team For Uncommitted Bug PR for untriaged, rejected, closed or missing bug labels Sep 22, 2023
jakebailey
jakebailey commented Sep 22, 2023
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jakebailey commented Sep 22, 2023
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I made an alternative entrypoint which is able to create a snapshot on the fly and use it for further executions. Even in the best case where I don't check that the file hasn't change, it doesn't really save all that much:

$ hyperfine -w 10 'node ./built/local/tsc.js --version' 'node ./snapshotify.js ./built/local/tsc.js --version'
Benchmark 1: node ./built/local/tsc.js --version
  Time (mean ± σ):      89.0 ms ±   1.1 ms    [User: 78.0 ms, System: 10.8 ms]
  Range (min … max):    86.9 ms …  91.1 ms    33 runs
 
Benchmark 2: node ./snapshotify.js ./built/local/tsc.js --version
  Time (mean ± σ):      49.4 ms ±   1.1 ms    [User: 35.2 ms, System: 13.4 ms]
  Range (min … max):    47.4 ms …  53.9 ms    59 runs
 
Summary
  'node ./snapshotify.js ./built/local/tsc.js --version' ran
    1.80 ± 0.05 times faster than 'node ./built/local/tsc.js --version'

$ hyperfine -w 10 'node ./built/local/tsc.js -p scripts' 'node ./snapshotify.js ./built/local/tsc.js -p scripts'
Benchmark 1: node ./built/local/tsc.js -p scripts
  Time (mean ± σ):      1.951 s ±  0.041 s    [User: 4.422 s, System: 0.179 s]
  Range (min … max):    1.888 s …  2.012 s    10 runs
 
Benchmark 2: node ./snapshotify.js ./built/local/tsc.js -p scripts
  Time (mean ± σ):      1.811 s ±  0.027 s    [User: 4.257 s, System: 0.149 s]
  Range (min … max):    1.780 s …  1.860 s    10 runs
 
Summary
  'node ./snapshotify.js ./built/local/tsc.js -p scripts' ran
    1.08 ± 0.03 times faster than 'node ./built/local/tsc.js -p scripts'

Hard to say whether or not this is worth it when we're not shipping the blobs themselves (which, we can't).

@DanielRosenwasser DanielRosenwasser mentioned this pull request Jan 4, 2024
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@typescript-bot perf test

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typescript-bot commented Jan 9, 2024 •
edited

Heya @jakebailey, I've started to run the regular perf test suite on this PR at 75c9404. You can monitor the build here.

Update: The results are in!

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@typescript-bot perf test

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typescript-bot commented Jan 9, 2024 •
edited

Heya @jakebailey, I've started to run the regular perf test suite on this PR at e43ced9. You can monitor the build here.

Update: The results are in!

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@jakebailey, the perf run you requested failed. You can check the log here.

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

Here they are:

startup

Comparison Report - baseline..pr
Metric baseline pr Delta Best Worst p-value
tsc-startup - node (v18.15.0, x64)
Execution time 153.95ms (± 0.21%) 108.73ms (±13.06%) 🟩-45.22ms (-29.38%) 105.72ms 585.97ms p=0.000 n=600
tsserver-startup - node (v18.15.0, x64)
Execution time 229.16ms (± 0.16%) 229.27ms (± 0.18%) +0.10ms (+ 0.04%) 227.91ms 235.26ms p=0.044 n=600
tsserverlibrary-startup - node (v18.15.0, x64)
Execution time 230.86ms (± 0.16%) 230.68ms (± 0.17%) -0.18ms (- 0.08%) 229.08ms 233.46ms p=0.000 n=600
typescript-startup - node (v18.15.0, x64)
Execution time 231.39ms (± 0.17%) 231.39ms (± 0.19%) ~ 229.89ms 237.03ms p=0.832 n=600
System info unknown
Hosts
  • node (v18.15.0, x64)
Scenarios
  • tsc-startup - node (v18.15.0, x64)
  • tsserver-startup - node (v18.15.0, x64)
  • tsserverlibrary-startup - node (v18.15.0, x64)
  • typescript-startup - node (v18.15.0, x64)
Benchmark Name Iterations
Current pr 6
Baseline baseline 6

tsc

Comparison Report - baseline..pr
Metric baseline pr Delta Best Worst p-value
Angular - node (v18.15.0, x64)
Memory used 295,507k (± 0.01%) 408,607k (±13.53%) 🔻+113,100k (+38.27%) 295,670k 431,590k p=0.005 n=6
Parse Time 2.65s (± 0.24%) 2.65s (± 4.90%) ~ 2.57s 2.91s p=0.060 n=6
Bind Time 0.82s (± 0.00%) 0.82s (± 0.99%) ~ 0.81s 0.83s p=0.290 n=6
Check Time 8.16s (± 0.39%) 8.16s (± 0.40%) ~ 8.12s 8.20s p=0.936 n=6
Emit Time 7.11s (± 0.44%) 7.11s (± 0.21%) ~ 7.08s 7.12s p=1.000 n=6
Total Time 18.74s (± 0.20%) 18.74s (± 0.71%) ~ 18.65s 19.00s p=0.228 n=6
Compiler-Unions - node (v18.15.0, x64)
Memory used 192,427k (± 0.70%) 251,505k (±12.21%) 🔻+59,078k (+30.70%) 191,757k 277,135k p=0.013 n=6
Parse Time 1.35s (± 0.87%) 1.39s (± 9.46%) ~ 1.33s 1.66s p=0.506 n=6
Bind Time 0.72s (± 0.00%) 0.73s (± 0.87%) +0.01s (+ 1.39%) 0.72s 0.74s p=0.008 n=6
Check Time 9.37s (± 0.44%) 9.24s (± 0.85%) -0.13s (- 1.39%) 9.18s 9.39s p=0.036 n=6
Emit Time 2.63s (± 0.39%) 2.77s (± 4.17%) ~ 2.61s 2.86s p=0.120 n=6
Total Time 14.06s (± 0.39%) 14.12s (± 1.15%) ~ 13.90s 14.40s p=0.377 n=6
Monaco - node (v18.15.0, x64)
Memory used 347,424k (± 0.00%) 428,209k (± 9.22%) 🔻+80,786k (+23.25%) 347,548k 444,397k p=0.005 n=6
Parse Time 2.47s (± 0.47%) 2.50s (± 5.49%) ~ 2.44s 2.78s p=0.084 n=6
Bind Time 0.93s (± 0.44%) 0.92s (± 0.97%) ~ 0.91s 0.93s p=0.086 n=6
Check Time 6.90s (± 0.53%) 6.87s (± 0.45%) ~ 6.84s 6.92s p=0.295 n=6
Emit Time 4.05s (± 0.44%) 4.04s (± 0.49%) ~ 4.01s 4.06s p=0.871 n=6
Total Time 14.35s (± 0.29%) 14.34s (± 0.99%) ~ 14.25s 14.62s p=0.148 n=6
TFS - node (v18.15.0, x64)
Memory used 302,767k (± 0.01%) 341,013k (± 5.70%) 🔻+38,247k (+12.63%) 302,944k 355,352k p=0.005 n=6
Parse Time 2.01s (± 1.31%) 2.07s (± 6.37%) ~ 2.00s 2.34s p=0.466 n=6
Bind Time 1.00s (± 0.83%) 1.00s (± 0.51%) ~ 1.00s 1.01s p=0.923 n=6
Check Time 6.31s (± 0.32%) 6.30s (± 0.30%) ~ 6.28s 6.33s p=0.570 n=6
Emit Time 3.57s (± 0.41%) 3.58s (± 0.21%) ~ 3.57s 3.59s p=0.099 n=6
Total Time 12.89s (± 0.32%) 12.96s (± 1.09%) ~ 12.86s 13.24s p=0.467 n=6
material-ui - node (v18.15.0, x64)
Memory used 508,271k (± 0.00%) 528,146k (± 1.97%) +19,875k (+ 3.91%) 508,460k 540,028k p=0.005 n=6
Parse Time 2.59s (± 0.62%) 2.68s (± 4.45%) +0.09s (+ 3.48%) 2.61s 2.92s p=0.006 n=6
Bind Time 0.99s (± 0.64%) 0.90s (± 5.56%) 🟩-0.09s (- 9.26%) 0.87s 1.00s p=0.046 n=6
Check Time 17.08s (± 0.29%) 17.46s (± 0.79%) +0.38s (+ 2.23%) 17.21s 17.59s p=0.005 n=6
Emit Time 0.00s (± 0.00%) 0.00s (± 0.00%) ~ 0.00s 0.00s p=1.000 n=6
Total Time 20.66s (± 0.26%) 21.04s (± 0.40%) +0.38s (+ 1.85%) 20.96s 21.14s p=0.005 n=6
xstate - node (v18.15.0, x64)
Memory used 512,980k (± 0.01%) 571,323k (± 4.62%) 🔻+58,343k (+11.37%) 517,526k 584,054k p=0.005 n=6
Parse Time 3.28s (± 0.33%) 3.40s (± 3.34%) +0.12s (+ 3.61%) 3.34s 3.63s p=0.005 n=6
Bind Time 1.54s (± 0.34%) 1.43s (± 0.69%) 🟩-0.11s (- 6.83%) 1.42s 1.45s p=0.004 n=6
Check Time 2.84s (± 0.62%) 2.82s (± 0.66%) ~ 2.80s 2.85s p=0.373 n=6
Emit Time 0.07s (± 0.00%) 0.07s (± 5.69%) ~ 0.07s 0.08s p=0.405 n=6
Total Time 7.72s (± 0.19%) 7.73s (± 1.75%) ~ 7.65s 8.01s p=0.065 n=6
System info unknown
Hosts
  • node (v18.15.0, x64)
Scenarios
  • Angular - node (v18.15.0, x64)
  • Compiler-Unions - node (v18.15.0, x64)
  • Monaco - node (v18.15.0, x64)
  • TFS - node (v18.15.0, x64)
  • material-ui - node (v18.15.0, x64)
  • xstate - node (v18.15.0, x64)
Benchmark Name Iterations
Current pr 6
Baseline baseline 6

tsserver

Comparison Report - baseline..pr
Metric baseline pr Delta Best Worst p-value
Compiler-UnionsTSServer - node (v18.15.0, x64)
Req 1 - updateOpen 2,349ms (± 0.48%) 2,344ms (± 0.59%) ~ 2,324ms 2,359ms p=0.520 n=6
Req 2 - geterr 5,513ms (± 1.43%) 5,492ms (± 1.16%) ~ 5,413ms 5,562ms p=0.575 n=6
Req 3 - references 323ms (± 0.36%) 323ms (± 0.41%) ~ 322ms 325ms p=0.739 n=6
Req 4 - navto 273ms (± 1.22%) 274ms (± 1.40%) ~ 270ms 278ms p=0.615 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 87ms (± 8.83%) 88ms (± 6.98%) ~ 79ms 93ms p=1.000 n=6
CompilerTSServer - node (v18.15.0, x64)
Req 1 - updateOpen 2,480ms (± 0.92%) 2,477ms (± 0.63%) ~ 2,463ms 2,504ms p=0.689 n=6
Req 2 - geterr 4,141ms (± 1.80%) 4,165ms (± 1.96%) ~ 4,076ms 4,241ms p=0.810 n=6
Req 3 - references 336ms (± 1.76%) 334ms (± 1.10%) ~ 331ms 341ms p=0.871 n=6
Req 4 - navto 285ms (± 1.07%) 285ms (± 1.09%) ~ 282ms 291ms p=0.933 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 83ms (± 8.93%) 83ms (± 6.18%) ~ 78ms 90ms p=1.000 n=6
xstateTSServer - node (v18.15.0, x64)
Req 1 - updateOpen 2,596ms (± 0.77%) 2,598ms (± 0.89%) ~ 2,562ms 2,617ms p=0.936 n=6
Req 2 - geterr 1,699ms (± 1.77%) 1,711ms (± 2.58%) ~ 1,647ms 1,762ms p=0.470 n=6
Req 3 - references 116ms (± 9.63%) 123ms (± 6.65%) ~ 106ms 126ms p=0.346 n=6
Req 4 - navto 365ms (± 0.22%) 364ms (± 0.86%) ~ 358ms 366ms p=0.796 n=6
Req 5 - completionInfo count 2,073 (± 0.00%) 2,073 (± 0.00%) ~ 2,073 2,073 p=1.000 n=6
Req 5 - completionInfo 305ms (± 1.90%) 309ms (± 1.89%) ~ 300ms 315ms p=0.376 n=6
System info unknown
Hosts
  • node (v18.15.0, x64)
Scenarios
  • CompilerTSServer - node (v18.15.0, x64)
  • Compiler-UnionsTSServer - node (v18.15.0, x64)
  • xstateTSServer - node (v18.15.0, x64)
Benchmark Name Iterations
Current pr 6
Baseline baseline 6

Developer Information:

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So far:

Benchmark 1: node ./built/local/tsc.js --version
  Time (mean ± σ):      55.4 ms ±   0.7 ms    [User: 40.2 ms, System: 14.3 ms]
  Range (min … max):    54.1 ms …  57.5 ms    53 runs
 
Benchmark 2: node ./built/local/tscReal.js --version
  Time (mean ± σ):      88.9 ms ±   0.7 ms    [User: 73.3 ms, System: 15.1 ms]
  Range (min … max):    86.9 ms …  90.5 ms    33 runs
 
Benchmark 3: ./tscBun --version
  Time (mean ± σ):     104.6 ms ±   1.0 ms    [User: 96.4 ms, System: 10.2 ms]
  Range (min … max):   102.6 ms … 106.8 ms    28 runs
 
Summary
  'node ./built/local/tsc.js --version' ran
    1.61 ± 0.02 times faster than 'node ./built/local/tscReal.js --version'
    1.89 ± 0.03 times faster than './tscBun --version'

The perf benchmarker does not do warmup runs, so it's a little unhappy. It fares worse than my machine at only a 30% startup boost.

@jakebailey jakebailey mentioned this pull request Jan 10, 2024
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@DanielRosenwasser DanielRosenwasser mentioned this pull request Feb 22, 2024
Open
@jakebailey jakebailey mentioned this pull request Mar 29, 2024
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For those following this, native automatic caching in Node is able to achieve better perf than what I was able to do: nodejs/node#47472 (comment)

$ hyperfine -w 10 -r 100 'NODE_COMPILER_CACHE= $HOME/work/node/out/Release/node ./built/local/tsc.js --version' 'NODE_COMPILER_CACHE=./tmp $HOME/work/node/out/Release/node ./built/local/tsc.js --version'
Benchmark 1: NODE_COMPILER_CACHE= $HOME/work/node/out/Release/node ./built/local/tsc.js --version
  Time (mean ± σ):      89.9 ms ±   1.4 ms    [User: 77.9 ms, System: 11.1 ms]
  Range (min … max):    88.0 ms …  97.7 ms    100 runs

Benchmark 2: NODE_COMPILER_CACHE=./tmp $HOME/work/node/out/Release/node ./built/local/tsc.js --version
  Time (mean ± σ):      39.9 ms ±   0.6 ms    [User: 29.9 ms, System: 9.6 ms]
  Range (min … max):    38.7 ms …  42.6 ms    100 runs

Summary
  'NODE_COMPILER_CACHE=./tmp $HOME/work/node/out/Release/node ./built/local/tsc.js --version' ran
    2.25 ± 0.05 times faster than 'NODE_COMPILER_CACHE= $HOME/work/node/out/Release/node ./built/local/tsc.js --version'

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@typescript-bot perf test

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typescript-bot commented Apr 16, 2024 •
edited

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

Command Status Results
perf test ✅ Started 👀 Results

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@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
Angular - node (v18.15.0, x64)
Memory used 297,008k (± 0.01%) 437,891k (± 1.51%) 🔻+140,883k (+47.43%) 431,920k 446,430k p=0.005 n=6
Parse Time 4.04s (± 0.49%) 3.98s (± 0.25%) -0.06s (- 1.44%) 3.97s 3.99s p=0.005 n=6
Bind Time 1.21s (± 0.69%) 1.21s (± 0.69%) ~ 1.20s 1.22s p=0.796 n=6
Check Time 12.10s (± 0.33%) 12.12s (± 0.31%) ~ 12.07s 12.16s p=0.687 n=6
Emit Time 10.50s (± 0.33%) 10.59s (± 0.63%) +0.09s (+ 0.89%) 10.50s 10.70s p=0.020 n=6
Total Time 27.86s (± 0.19%) 27.91s (± 0.29%) ~ 27.82s 28.04s p=0.334 n=6
Compiler-Unions - node (v18.15.0, x64)
Memory used 192,378k (± 0.77%) 263,078k (± 0.32%) 🔻+70,700k (+36.75%) 262,019k 264,139k p=0.005 n=6
Parse Time 2.02s (± 0.37%) 2.00s (± 1.72%) ~ 1.97s 2.05s p=0.373 n=6
Bind Time 1.06s (± 1.03%) 1.08s (± 0.78%) +0.02s (+ 1.42%) 1.06s 1.08s p=0.042 n=6
Check Time 14.06s (± 0.34%) 13.87s (± 0.62%) -0.19s (- 1.35%) 13.72s 13.95s p=0.005 n=6
Emit Time 3.85s (± 1.28%) 4.17s (± 0.88%) 🔻+0.33s (+ 8.50%) 4.11s 4.22s p=0.005 n=6
Total Time 20.98s (± 0.38%) 21.11s (± 0.53%) ~ 20.93s 21.25s p=0.066 n=6
Monaco - node (v18.15.0, x64)
Memory used 348,868k (± 0.01%) 454,605k (± 0.03%) 🔻+105,737k (+30.31%) 454,485k 454,816k p=0.005 n=6
Parse Time 3.84s (± 0.71%) 3.81s (± 0.64%) ~ 3.76s 3.83s p=0.076 n=6
Bind Time 1.32s (± 0.68%) 1.31s (± 0.62%) -0.01s (- 1.01%) 1.30s 1.32s p=0.038 n=6
Check Time 10.28s (± 0.38%) 10.29s (± 0.10%) ~ 10.27s 10.30s p=0.808 n=6
Emit Time 6.00s (± 0.37%) 5.99s (± 0.49%) ~ 5.95s 6.04s p=0.514 n=6
Total Time 21.44s (± 0.28%) 21.39s (± 0.14%) ~ 21.36s 21.44s p=0.142 n=6
TFS - node (v18.15.0, x64)
Memory used 302,964k (± 0.01%) 360,945k (± 1.45%) 🔻+57,981k (+19.14%) 350,223k 363,178k p=0.005 n=6
Parse Time 2.02s (± 0.60%) 2.03s (± 0.98%) ~ 2.00s 2.05s p=0.615 n=6
Bind Time 0.97s (± 0.53%) 0.98s (± 0.91%) ~ 0.97s 0.99s p=0.190 n=6
Check Time 6.43s (± 0.25%) 6.45s (± 0.45%) ~ 6.41s 6.49s p=0.193 n=6
Emit Time 3.58s (± 0.18%) 3.59s (± 0.42%) ~ 3.57s 3.61s p=0.131 n=6
Total Time 13.01s (± 0.21%) 13.06s (± 0.18%) +0.05s (+ 0.40%) 13.02s 13.09s p=0.019 n=6
material-ui - node (v18.15.0, x64)
Memory used 511,635k (± 0.00%) 533,713k (± 0.93%) 🔻+22,079k (+ 4.32%) 523,840k 537,013k p=0.005 n=6
Parse Time 3.25s (± 0.61%) 3.34s (± 0.54%) +0.09s (+ 2.61%) 3.32s 3.37s p=0.005 n=6
Bind Time 1.19s (± 1.39%) 1.04s (± 0.53%) 🟩-0.15s (-12.66%) 1.03s 1.04s p=0.004 n=6
Check Time 20.55s (± 0.37%) 21.02s (± 0.45%) +0.47s (+ 2.30%) 20.89s 21.14s p=0.005 n=6
Emit Time 0.00s (± 0.00%) 0.00s (± 0.00%) ~ 0.00s 0.00s p=1.000 n=6
Total Time 24.99s (± 0.34%) 25.39s (± 0.40%) +0.40s (+ 1.61%) 25.26s 25.52s p=0.005 n=6
mui-docs - node (v18.15.0, x64)
Memory used 1,748,707k (± 0.00%) 1,796,018k (± 1.42%) +47,311k (+ 2.71%) 1,783,786k 1,848,029k p=0.005 n=6
Parse Time 8.10s (± 0.37%) 8.43s (± 0.88%) 🔻+0.33s (+ 4.05%) 8.28s 8.48s p=0.005 n=6
Bind Time 2.74s (± 0.59%) 2.24s (± 0.73%) 🟩-0.50s (-18.23%) 2.22s 2.27s p=0.004 n=6
Check Time 66.77s (± 0.37%) 68.72s (± 0.51%) +1.95s (+ 2.93%) 68.31s 69.34s p=0.005 n=6
Emit Time 0.17s (± 6.19%) 0.17s (± 6.19%) ~ 0.16s 0.18s p=1.000 n=6
Total Time 77.78s (± 0.35%) 79.56s (± 0.35%) +1.79s (+ 2.30%) 79.21s 80.00s p=0.005 n=6
self-build-src - node (v18.15.0, x64)
Memory used 2,306,767k (± 0.05%) 5,365,257k (±14.61%) 🔻+3,058,491k (+132.59%) 4,802,148k 6,670,784k p=0.005 n=6
Parse Time 7.39s (± 0.45%) 7.55s (± 0.68%) +0.16s (+ 2.12%) 7.48s 7.63s p=0.005 n=6
Bind Time 2.76s (± 0.82%) 2.32s (± 1.60%) 🟩-0.44s (-15.85%) 2.28s 2.38s p=0.005 n=6
Check Time 49.39s (± 0.50%) 45.50s (± 0.59%) 🟩-3.89s (- 7.88%) 45.09s 45.81s p=0.005 n=6
Emit Time 3.94s (± 1.58%) 3.25s (± 2.00%) 🟩-0.68s (-17.36%) 3.14s 3.33s p=0.005 n=6
Total Time 63.48s (± 0.47%) 58.63s (± 0.43%) 🟩-4.84s (- 7.63%) 58.18s 58.92s p=0.005 n=6
self-build-src-public-api - node (v18.15.0, x64)
Memory used 2,381,487k (± 0.05%) 2,382,787k (± 0.03%) ~ 2,381,369k 2,383,747k p=0.093 n=6
Parse Time 7.65s (± 0.42%) 7.59s (± 1.13%) ~ 7.43s 7.67s p=0.199 n=6
Bind Time 2.52s (± 0.71%) 2.52s (± 0.82%) ~ 2.48s 2.54s p=0.871 n=6
Check Time 49.72s (± 0.67%) 49.83s (± 0.62%) ~ 49.49s 50.20s p=0.810 n=6
Emit Time 3.90s (± 1.97%) 3.95s (± 3.37%) ~ 3.81s 4.17s p=0.630 n=6
Total Time 63.79s (± 0.53%) 63.88s (± 0.58%) ~ 63.46s 64.39s p=0.936 n=6
self-compiler - node (v18.15.0, x64)
Memory used 419,093k (± 0.01%) 476,250k (± 1.27%) 🔻+57,157k (+13.64%) 470,629k 486,500k p=0.005 n=6
Parse Time 3.39s (± 0.52%) 3.34s (± 0.52%) -0.06s (- 1.67%) 3.32s 3.37s p=0.006 n=6
Bind Time 1.31s (± 0.89%) 1.29s (± 0.76%) -0.02s (- 1.52%) 1.28s 1.30s p=0.022 n=6
Check Time 18.02s (± 0.35%) 18.08s (± 0.36%) ~ 17.99s 18.17s p=0.295 n=6
Emit Time 1.37s (± 1.76%) 1.38s (± 1.09%) ~ 1.37s 1.41s p=0.628 n=6
Total Time 24.10s (± 0.17%) 24.09s (± 0.29%) ~ 24.00s 24.16s p=1.000 n=6
vscode - node (v18.15.0, x64)
Memory used 2,913,896k (± 0.00%) 3,001,919k (± 1.83%) +88,023k (+ 3.02%) 2,958,643k 3,110,939k p=0.005 n=6
Parse Time 11.24s (± 0.21%) 11.22s (± 0.47%) ~ 11.13s 11.29s p=0.808 n=6
Bind Time 3.41s (± 0.44%) 3.40s (± 0.24%) -0.02s (- 0.49%) 3.39s 3.41s p=0.039 n=6
Check Time 62.64s (± 0.51%) 62.29s (± 0.45%) ~ 61.85s 62.58s p=0.149 n=6
Emit Time 16.50s (± 0.56%) 19.91s (± 0.75%) 🔻+3.41s (+20.65%) 19.65s 20.08s p=0.005 n=6
Total Time 93.78s (± 0.38%) 96.82s (± 0.44%) +3.04s (+ 3.24%) 96.02s 97.13s p=0.005 n=6
webpack - node (v18.15.0, x64)
Memory used 409,469k (± 0.01%) 461,662k (± 0.99%) 🔻+52,193k (+12.75%) 452,358k 464,503k p=0.005 n=6
Parse Time 4.80s (± 0.92%) 4.84s (± 1.43%) ~ 4.75s 4.95s p=0.228 n=6
Bind Time 2.03s (± 0.48%) 2.01s (± 0.98%) ~ 2.00s 2.05s p=0.058 n=6
Check Time 21.00s (± 0.19%) 20.96s (± 0.27%) ~ 20.88s 21.04s p=0.260 n=6
Emit Time 0.00s (± 0.00%) 0.00s (± 0.00%) ~ 0.00s 0.00s p=1.000 n=6
Total Time 27.83s (± 0.13%) 27.82s (± 0.23%) ~ 27.75s 27.93s p=0.369 n=6
xstate - node (v18.15.0, x64)
Memory used 671,924k (± 0.01%) 760,483k (± 0.05%) 🔻+88,558k (+13.18%) 760,169k 761,089k p=0.005 n=6
Parse Time 3.40s (± 0.40%) 3.48s (± 0.16%) +0.07s (+ 2.06%) 3.47s 3.48s p=0.005 n=6
Bind Time 1.57s (± 0.00%) 1.43s (± 0.53%) 🟩-0.14s (- 8.81%) 1.42s 1.44s p=0.003 n=6
Check Time 2.90s (± 0.49%) 2.90s (± 0.81%) ~ 2.86s 2.92s p=1.000 n=6
Emit Time 0.02s (± 0.00%) 0.02s (± 0.00%) ~ 0.02s 0.02s p=1.000 n=6
Total Time 7.91s (± 0.24%) 7.83s (± 0.23%) -0.08s (- 0.97%) 7.80s 7.85s p=0.005 n=6
System info unknown
Hosts
  • node (v18.15.0, x64)
Scenarios
  • Angular - node (v18.15.0, x64)
  • Compiler-Unions - node (v18.15.0, x64)
  • Monaco - node (v18.15.0, x64)
  • TFS - node (v18.15.0, x64)
  • material-ui - node (v18.15.0, x64)
  • mui-docs - node (v18.15.0, x64)
  • self-build-src - node (v18.15.0, x64)
  • self-build-src-public-api - node (v18.15.0, x64)
  • self-compiler - node (v18.15.0, x64)
  • vscode - node (v18.15.0, x64)
  • webpack - node (v18.15.0, x64)
  • xstate - node (v18.15.0, x64)
Benchmark Name Iterations
Current pr 6
Baseline baseline 6

tsserver

Comparison Report - baseline..pr
Metric baseline pr Delta Best Worst p-value
Compiler-UnionsTSServer - node (v18.15.0, x64)
Req 1 - updateOpen 3,499ms (± 0.34%) 3,491ms (± 0.85%) ~ 3,460ms 3,532ms p=0.575 n=6
Req 2 - geterr 7,585ms (± 1.91%) 7,668ms (± 1.92%) ~ 7,465ms 7,831ms p=0.378 n=6
Req 3 - references 426ms (± 0.48%) 426ms (± 0.99%) ~ 421ms 431ms p=0.936 n=6
Req 4 - navto 337ms (± 0.79%) 336ms (± 0.95%) ~ 333ms 340ms p=0.625 n=6
Req 5 - completionInfo count 1,357 (± 0.00%) 1,357 (± 0.00%) ~ 1,357 1,357 p=1.000 n=6
Req 5 - completionInfo 117ms (± 7.58%) 122ms (± 8.16%) ~ 111ms 135ms p=0.375 n=6
CompilerTSServer - node (v18.15.0, x64)
Req 1 - updateOpen 2,516ms (± 0.86%) 2,510ms (± 0.92%) ~ 2,475ms 2,539ms p=0.575 n=6
Req 2 - geterr 3,835ms (± 0.23%) 3,909ms (± 2.07%) ~ 3,831ms 3,993ms p=0.173 n=6
Req 3 - references 307ms (± 0.82%) 303ms (± 1.77%) ~ 297ms 310ms p=0.146 n=6
Req 4 - navto 228ms (± 0.28%) 226ms (± 0.91%) ~ 223ms 228ms p=0.129 n=6
Req 5 - completionInfo count 1,519 (± 0.00%) 1,519 (± 0.00%) ~ 1,519 1,519 p=1.000 n=6
Req 5 - completionInfo 84ms (± 0.62%) 79ms (± 6.05%) ~ 72ms 84ms p=0.103 n=6
xstateTSServer - node (v18.15.0, x64)
Req 1 - updateOpen 3,167ms (± 0.28%) 3,191ms (± 0.87%) ~ 3,149ms 3,230ms p=0.093 n=6
Req 2 - geterr 1,888ms (±12.20%) 1,752ms (± 1.13%) ~ 1,732ms 1,790ms p=0.872 n=6
Req 3 - references 177ms (± 7.49%) 154ms (± 0.86%) 🟩-23ms (-12.90%) 153ms 156ms p=0.012 n=6
Req 4 - navto 496ms (±10.62%) 430ms (± 0.67%) ~ 426ms 434ms p=0.170 n=6
Req 5 - completionInfo count 2,079 (± 0.00%) 2,079 (± 0.00%) ~ 2,079 2,079 p=1.000 n=6
Req 5 - completionInfo 420ms (±10.94%) 363ms (± 1.46%) ~ 357ms 372ms p=0.108 n=6
System info unknown
Hosts
  • node (v18.15.0, x64)
Scenarios
  • CompilerTSServer - node (v18.15.0, x64)
  • Compiler-UnionsTSServer - node (v18.15.0, x64)
  • xstateTSServer - node (v18.15.0, x64)
Benchmark Name Iterations
Current pr 6
Baseline baseline 6

startup

Comparison Report - baseline..pr
Metric baseline pr Delta Best Worst p-value
tsc-startup - node (v18.15.0, x64)
Execution time 153.92ms (± 0.16%) 106.50ms (± 0.20%) 🟩-47.42ms (-30.81%) 105.79ms 108.44ms p=0.000 n=600
tsserver-startup - node (v18.15.0, x64)
Execution time 227.73ms (± 0.14%) 227.77ms (± 0.16%) ~ 226.32ms 232.80ms p=0.480 n=600
tsserverlibrary-startup - node (v18.15.0, x64)
Execution time 224.14ms (± 0.15%) 224.14ms (± 0.18%) ~ 222.64ms 228.67ms p=0.356 n=600
typescript-startup - node (v18.15.0, x64)
Execution time 225.48ms (± 0.18%) 225.52ms (± 0.15%) ~ 223.83ms 228.55ms p=0.188 n=600
System info unknown
Hosts
  • node (v18.15.0, x64)
Scenarios
  • tsc-startup - node (v18.15.0, x64)
  • tsserver-startup - node (v18.15.0, x64)
  • tsserverlibrary-startup - node (v18.15.0, x64)
  • typescript-startup - node (v18.15.0, x64)
Benchmark Name Iterations
Current pr 6
Baseline baseline 6

Developer Information:

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@jakebailey @typescript-bot @Jack-Works