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Enable caching for control flow paths that precede loops #33510

Merged
merged 3 commits into from
Sep 20, 2019
Merged

Enable caching for control flow paths that precede loops #33510

merged 3 commits into from
Sep 20, 2019

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ahejlsberg
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This PR tweaks our control flow analysis logic for loops to ensure that caching of assignment nodes occurs in control flow paths that precede loops.

@ahejlsberg
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@typescript-bot perf test this
@typescript-bot test this

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typescript-bot commented Sep 19, 2019 •
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Heya @ahejlsberg, I've started to run the perf test suite on this PR at 7b77b49. You can monitor the build here. It should now contribute to this PR's status checks.

Update: The results are in!

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typescript-bot commented Sep 19, 2019 •
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Heya @ahejlsberg, I've started to run the extended test suite on this PR at 7b77b49. You can monitor the build here. It should now contribute to this PR's status checks.

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

Here they are:

Comparison Report - master..33510

Metric master 33510 Delta Best Worst
Angular - node (v12.1.0, x64)
Memory used 331,277k (± 0.02%) 331,732k (± 0.02%) +455k (+ 0.14%) 331,608k 331,826k
Parse Time 1.55s (± 0.61%) 1.56s (± 0.56%) +0.01s (+ 0.64%) 1.54s 1.58s
Bind Time 0.78s (± 0.43%) 0.79s (± 0.76%) +0.01s (+ 0.77%) 0.77s 0.80s
Check Time 4.25s (± 0.33%) 4.30s (± 0.61%) +0.05s (+ 1.15%) 4.24s 4.37s
Emit Time 5.27s (± 1.09%) 5.27s (± 0.93%) +0.00s (+ 0.08%) 5.20s 5.43s
Total Time 11.85s (± 0.51%) 11.92s (± 0.50%) +0.07s (+ 0.57%) 11.82s 12.10s
Monaco - node (v12.1.0, x64)
Memory used 345,950k (± 0.02%) 346,079k (± 0.02%) +130k (+ 0.04%) 345,940k 346,235k
Parse Time 1.23s (± 0.41%) 1.23s (± 0.57%) +0.00s (+ 0.33%) 1.22s 1.25s
Bind Time 0.67s (± 0.66%) 0.68s (± 0.69%) +0.01s (+ 1.19%) 0.67s 0.69s
Check Time 4.25s (± 0.33%) 4.26s (± 0.67%) +0.01s (+ 0.31%) 4.22s 4.32s
Emit Time 2.86s (± 0.72%) 2.85s (± 1.16%) -0.01s (- 0.31%) 2.80s 2.97s
Total Time 9.01s (± 0.17%) 9.02s (± 0.35%) +0.02s (+ 0.19%) 8.95s 9.09s
TFS - node (v12.1.0, x64)
Memory used 301,448k (± 0.02%) 301,494k (± 0.02%) +46k (+ 0.02%) 301,381k 301,626k
Parse Time 0.95s (± 0.65%) 0.96s (± 0.73%) +0.01s (+ 1.05%) 0.94s 0.97s
Bind Time 0.62s (± 0.48%) 0.63s (± 1.10%) +0.00s (+ 0.48%) 0.61s 0.64s
Check Time 3.85s (± 0.46%) 3.85s (± 0.31%) +0.00s (+ 0.10%) 3.82s 3.88s
Emit Time 2.96s (± 1.32%) 2.96s (± 0.87%) -0.01s (- 0.24%) 2.92s 3.05s
Total Time 8.38s (± 0.44%) 8.39s (± 0.47%) +0.01s (+ 0.14%) 8.35s 8.54s
Angular - node (v8.9.0, x64)
Memory used 350,147k (± 0.02%) 350,621k (± 0.02%) +474k (+ 0.14%) 350,503k 350,827k
Parse Time 2.10s (± 0.47%) 2.09s (± 0.48%) -0.01s (- 0.38%) 2.07s 2.12s
Bind Time 0.83s (± 0.48%) 0.84s (± 0.53%) +0.01s (+ 1.09%) 0.83s 0.85s
Check Time 5.10s (± 0.43%) 5.12s (± 0.64%) +0.02s (+ 0.31%) 5.06s 5.20s
Emit Time 5.98s (± 0.91%) 5.96s (± 2.14%) -0.03s (- 0.48%) 5.50s 6.19s
Total Time 14.02s (± 0.41%) 14.00s (± 0.99%) -0.02s (- 0.11%) 13.52s 14.24s
Monaco - node (v8.9.0, x64)
Memory used 363,726k (± 0.01%) 363,844k (± 0.02%) +117k (+ 0.03%) 363,776k 363,992k
Parse Time 1.56s (± 0.48%) 1.56s (± 0.62%) -0.00s (- 0.19%) 1.54s 1.59s
Bind Time 0.88s (± 0.70%) 0.89s (± 0.67%) +0.01s (+ 0.80%) 0.88s 0.90s
Check Time 5.15s (± 1.43%) 5.08s (± 1.23%) -0.07s (- 1.38%) 4.94s 5.25s
Emit Time 3.05s (± 4.26%) 3.22s (± 4.37%) +0.17s (+ 5.60%) 2.92s 3.48s
Total Time 10.64s (± 0.62%) 10.75s (± 0.96%) +0.10s (+ 0.96%) 10.54s 10.97s
TFS - node (v8.9.0, x64)
Memory used 317,662k (± 0.02%) 317,730k (± 0.01%) +67k (+ 0.02%) 317,638k 317,793k
Parse Time 1.26s (± 0.60%) 1.26s (± 0.46%) +0.00s (+ 0.08%) 1.25s 1.27s
Bind Time 0.68s (± 4.63%) 0.71s (± 5.63%) +0.03s (+ 3.94%) 0.66s 0.79s
Check Time 4.44s (± 1.09%) 4.41s (± 1.40%) -0.04s (- 0.79%) 4.27s 4.50s
Emit Time 3.06s (± 0.38%) 3.08s (± 0.48%) +0.02s (+ 0.69%) 3.05s 3.12s
Total Time 9.45s (± 0.27%) 9.46s (± 0.38%) +0.01s (+ 0.11%) 9.37s 9.56s
Angular - node (v8.9.0, x86)
Memory used 198,202k (± 0.02%) 198,428k (± 0.03%) +226k (+ 0.11%) 198,319k 198,579k
Parse Time 2.04s (± 0.57%) 2.03s (± 0.37%) -0.00s (- 0.25%) 2.01s 2.05s
Bind Time 0.95s (± 0.38%) 0.95s (± 0.49%) +0.00s (+ 0.42%) 0.94s 0.96s
Check Time 4.64s (± 0.41%) 4.64s (± 0.51%) +0.00s (+ 0.06%) 4.59s 4.70s
Emit Time 5.69s (± 1.37%) 5.70s (± 0.96%) +0.01s (+ 0.12%) 5.61s 5.85s
Total Time 13.31s (± 0.63%) 13.32s (± 0.52%) +0.01s (+ 0.08%) 13.20s 13.49s
Monaco - node (v8.9.0, x86)
Memory used 203,245k (± 0.02%) 203,309k (± 0.02%) +65k (+ 0.03%) 203,227k 203,392k
Parse Time 1.61s (± 0.68%) 1.61s (± 0.73%) -0.00s (- 0.12%) 1.59s 1.64s
Bind Time 0.72s (± 0.66%) 0.72s (± 0.51%) -0.00s (- 0.14%) 0.71s 0.72s
Check Time 4.89s (± 0.41%) 4.86s (± 0.48%) -0.03s (- 0.59%) 4.81s 4.91s
Emit Time 3.19s (± 0.76%) 3.17s (± 0.53%) -0.02s (- 0.66%) 3.13s 3.22s
Total Time 10.41s (± 0.43%) 10.36s (± 0.30%) -0.05s (- 0.50%) 10.28s 10.44s
TFS - node (v8.9.0, x86)
Memory used 178,569k (± 0.01%) 178,602k (± 0.02%) +33k (+ 0.02%) 178,544k 178,655k
Parse Time 1.31s (± 0.68%) 1.31s (± 0.76%) -0.00s (- 0.38%) 1.29s 1.33s
Bind Time 0.64s (± 1.05%) 0.64s (± 0.57%) -0.00s (- 0.16%) 0.63s 0.64s
Check Time 4.29s (± 0.76%) 4.26s (± 0.57%) -0.02s (- 0.56%) 4.22s 4.33s
Emit Time 2.86s (± 0.61%) 2.84s (± 0.91%) -0.02s (- 0.73%) 2.78s 2.90s
Total Time 9.10s (± 0.40%) 9.05s (± 0.27%) -0.05s (- 0.53%) 8.99s 9.10s
Angular - node (v9.0.0, x64)
Memory used 349,793k (± 0.01%) 350,235k (± 0.01%) +442k (+ 0.13%) 350,131k 350,324k
Parse Time 1.82s (± 0.33%) 1.82s (± 0.52%) +0.00s (+ 0.22%) 1.80s 1.84s
Bind Time 0.77s (± 0.62%) 0.78s (± 0.79%) +0.01s (+ 0.78%) 0.76s 0.79s
Check Time 4.84s (± 0.43%) 4.83s (± 0.32%) -0.01s (- 0.21%) 4.80s 4.86s
Emit Time 5.74s (± 1.28%) 5.71s (± 1.54%) -0.03s (- 0.52%) 5.54s 5.90s
Total Time 13.17s (± 0.58%) 13.14s (± 0.64%) -0.03s (- 0.23%) 12.99s 13.32s
Monaco - node (v9.0.0, x64)
Memory used 363,515k (± 0.02%) 363,552k (± 0.01%) +37k (+ 0.01%) 363,467k 363,658k
Parse Time 1.32s (± 0.52%) 1.32s (± 0.71%) +0.00s (+ 0.30%) 1.30s 1.35s
Bind Time 0.82s (± 0.89%) 0.84s (± 1.12%) +0.02s (+ 2.19%) 0.82s 0.86s
Check Time 5.09s (± 1.15%) 4.97s (± 2.03%) -0.12s (- 2.34%) 4.86s 5.24s
Emit Time 2.97s (± 4.82%) 3.22s (± 5.07%) +0.25s (+ 8.50%) 2.88s 3.38s
Total Time 10.19s (± 1.02%) 10.35s (± 0.85%) +0.16s (+ 1.52%) 10.11s 10.51s
TFS - node (v9.0.0, x64)
Memory used 317,477k (± 0.01%) 317,522k (± 0.02%) +45k (+ 0.01%) 317,430k 317,642k
Parse Time 1.04s (± 0.70%) 1.04s (± 0.32%) +0.00s (+ 0.19%) 1.03s 1.05s
Bind Time 0.62s (± 0.36%) 0.62s (± 0.76%) +0.00s (+ 0.16%) 0.61s 0.63s
Check Time 4.35s (± 0.37%) 4.38s (± 0.68%) +0.02s (+ 0.48%) 4.28s 4.42s
Emit Time 3.19s (± 0.39%) 3.18s (± 0.55%) -0.01s (- 0.31%) 3.13s 3.22s
Total Time 9.21s (± 0.26%) 9.22s (± 0.43%) +0.01s (+ 0.09%) 9.13s 9.31s
Angular - node (v9.0.0, x86)
Memory used 198,395k (± 0.03%) 198,544k (± 0.02%) +148k (+ 0.07%) 198,492k 198,683k
Parse Time 1.72s (± 0.51%) 1.72s (± 0.44%) +0.00s (+ 0.06%) 1.71s 1.75s
Bind Time 0.90s (± 1.04%) 0.90s (± 0.68%) +0.00s (+ 0.11%) 0.89s 0.91s
Check Time 4.33s (± 0.54%) 4.35s (± 0.57%) +0.02s (+ 0.51%) 4.30s 4.41s
Emit Time 5.49s (± 0.55%) 5.54s (± 1.13%) +0.05s (+ 0.91%) 5.44s 5.68s
Total Time 12.44s (± 0.40%) 12.51s (± 0.53%) +0.08s (+ 0.63%) 12.42s 12.70s
Monaco - node (v9.0.0, x86)
Memory used 203,360k (± 0.01%) 203,365k (± 0.02%) +5k (+ 0.00%) 203,244k 203,464k
Parse Time 1.34s (± 0.76%) 1.34s (± 0.43%) -0.00s (- 0.15%) 1.33s 1.35s
Bind Time 0.65s (± 0.77%) 0.64s (± 0.62%) -0.00s (- 0.62%) 0.63s 0.65s
Check Time 4.69s (± 0.47%) 4.70s (± 0.61%) +0.01s (+ 0.19%) 4.65s 4.76s
Emit Time 3.08s (± 0.61%) 3.10s (± 0.87%) +0.02s (+ 0.62%) 3.05s 3.18s
Total Time 9.75s (± 0.32%) 9.76s (± 0.35%) +0.02s (+ 0.17%) 9.70s 9.83s
TFS - node (v9.0.0, x86)
Memory used 178,614k (± 0.02%) 178,702k (± 0.03%) +89k (+ 0.05%) 178,568k 178,803k
Parse Time 1.07s (± 1.05%) 1.06s (± 1.06%) -0.00s (- 0.38%) 1.04s 1.09s
Bind Time 0.57s (± 0.52%) 0.58s (± 1.28%) +0.01s (+ 1.40%) 0.57s 0.60s
Check Time 4.14s (± 0.62%) 4.14s (± 0.37%) -0.01s (- 0.17%) 4.09s 4.17s
Emit Time 2.77s (± 1.05%) 2.78s (± 0.55%) +0.00s (+ 0.07%) 2.75s 2.82s
Total Time 8.56s (± 0.65%) 8.56s (± 0.34%) -0.00s (- 0.01%) 8.51s 8.63s
System
Machine Namets-ci-ubuntu
Platformlinux 4.4.0-161-generic
Architecturex64
Available Memory16 GB
Available Memory9 GB
CPUs4 × Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz
Hosts
  • node (v12.1.0, x64)
  • node (v8.9.0, x64)
  • node (v8.9.0, x86)
  • node (v9.0.0, x64)
  • node (v9.0.0, x86)
Scenarios
  • Angular - node (v12.1.0, x64)
  • Angular - node (v8.9.0, x64)
  • Angular - node (v8.9.0, x86)
  • Angular - node (v9.0.0, x64)
  • Angular - node (v9.0.0, x86)
  • Monaco - node (v12.1.0, x64)
  • Monaco - node (v8.9.0, x64)
  • Monaco - node (v8.9.0, x86)
  • Monaco - node (v9.0.0, x64)
  • Monaco - node (v9.0.0, x86)
  • TFS - node (v12.1.0, x64)
  • TFS - node (v8.9.0, x64)
  • TFS - node (v8.9.0, x86)
  • TFS - node (v9.0.0, x64)
  • TFS - node (v9.0.0, x86)
Benchmark Name Iterations
Current 33510 10
Baseline master 10

weswigham
weswigham approved these changes Sep 19, 2019
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It looks fine, but why's the perf a problem? Is there less caching going on now? Too many more loop cache entries causing memory chrun?

@ahejlsberg
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@typescript-bot perf test this
@typescript-bot test this

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typescript-bot commented Sep 20, 2019 •
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Heya @ahejlsberg, I've started to run the extended test suite on this PR at d4ad0d5. You can monitor the build here. It should now contribute to this PR's status checks.

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typescript-bot commented Sep 20, 2019 •
edited
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Heya @ahejlsberg, I've started to run the perf test suite on this PR at d4ad0d5. You can monitor the build here. It should now contribute to this PR's status checks.

Update: The results are in!

@typescript-bot
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@ahejlsberg
The results of the perf run you requested are in!

Here they are:

Comparison Report - master..33510

Metric master 33510 Delta Best Worst
Angular - node (v12.1.0, x64)
Memory used 331,199k (± 0.08%) 330,165k (± 0.02%) -1,033k (- 0.31%) 330,042k 330,338k
Parse Time 1.56s (± 0.60%) 1.56s (± 0.40%) -0.00s (- 0.13%) 1.55s 1.58s
Bind Time 0.78s (± 0.83%) 0.78s (± 0.60%) -0.00s (- 0.26%) 0.77s 0.79s
Check Time 4.29s (± 0.77%) 4.22s (± 0.71%) -0.07s (- 1.61%) 4.16s 4.30s
Emit Time 5.26s (± 1.21%) 5.24s (± 0.71%) -0.02s (- 0.44%) 5.18s 5.34s
Total Time 11.89s (± 0.76%) 11.80s (± 0.26%) -0.10s (- 0.81%) 11.75s 11.89s
Monaco - node (v12.1.0, x64)
Memory used 345,963k (± 0.02%) 344,590k (± 0.02%) -1,373k (- 0.40%) 344,463k 344,686k
Parse Time 1.23s (± 0.74%) 1.22s (± 0.39%) -0.01s (- 0.49%) 1.21s 1.23s
Bind Time 0.67s (± 0.60%) 0.67s (± 0.50%) +0.00s (+ 0.15%) 0.66s 0.68s
Check Time 4.27s (± 0.63%) 4.20s (± 0.35%) -0.07s (- 1.69%) 4.18s 4.24s
Emit Time 2.85s (± 0.63%) 2.84s (± 0.52%) -0.02s (- 0.56%) 2.79s 2.87s
Total Time 9.02s (± 0.43%) 8.94s (± 0.29%) -0.09s (- 0.99%) 8.87s 9.00s
TFS - node (v12.1.0, x64)
Memory used 301,408k (± 0.02%) 300,008k (± 0.02%) -1,400k (- 0.46%) 299,898k 300,162k
Parse Time 0.95s (± 0.84%) 0.96s (± 1.05%) +0.00s (+ 0.42%) 0.93s 0.97s
Bind Time 0.62s (± 0.79%) 0.62s (± 0.77%) -0.01s (- 1.12%) 0.61s 0.63s
Check Time 3.86s (± 0.54%) 3.76s (± 0.38%) -0.10s (- 2.59%) 3.73s 3.80s
Emit Time 2.98s (± 0.72%) 2.94s (± 0.83%) -0.03s (- 1.14%) 2.89s 3.00s
Total Time 8.41s (± 0.34%) 8.28s (± 0.36%) -0.14s (- 1.60%) 8.23s 8.34s
Angular - node (v8.9.0, x64)
Memory used 350,203k (± 0.01%) 348,736k (± 0.01%) -1,466k (- 0.42%) 348,619k 348,798k
Parse Time 2.09s (± 0.43%) 2.10s (± 0.36%) +0.01s (+ 0.29%) 2.08s 2.11s
Bind Time 0.83s (± 0.44%) 0.84s (± 0.84%) +0.00s (+ 0.60%) 0.82s 0.85s
Check Time 5.12s (± 0.77%) 5.04s (± 0.66%) -0.08s (- 1.62%) 4.98s 5.12s
Emit Time 6.04s (± 1.37%) 6.06s (± 1.15%) +0.02s (+ 0.31%) 5.95s 6.20s
Total Time 14.08s (± 0.56%) 14.03s (± 0.46%) -0.05s (- 0.38%) 13.87s 14.14s
Monaco - node (v8.9.0, x64)
Memory used 363,744k (± 0.01%) 362,153k (± 0.02%) -1,590k (- 0.44%) 362,058k 362,345k
Parse Time 1.56s (± 0.45%) 1.56s (± 0.44%) -0.00s (- 0.19%) 1.54s 1.57s
Bind Time 0.89s (± 0.75%) 0.89s (± 0.82%) -0.00s (- 0.22%) 0.87s 0.90s
Check Time 5.04s (± 1.16%) 5.02s (± 1.48%) -0.02s (- 0.34%) 4.92s 5.24s
Emit Time 3.25s (± 3.50%) 3.25s (± 3.50%) +0.00s (+ 0.09%) 2.94s 3.37s
Total Time 10.73s (± 0.68%) 10.72s (± 0.54%) -0.02s (- 0.14%) 10.57s 10.86s
TFS - node (v8.9.0, x64)
Memory used 317,720k (± 0.02%) 316,079k (± 0.01%) -1,641k (- 0.52%) 315,975k 316,166k
Parse Time 1.26s (± 0.46%) 1.25s (± 0.47%) -0.01s (- 0.71%) 1.24s 1.27s
Bind Time 0.72s (± 6.47%) 0.67s (± 0.56%) -0.05s (- 6.99%) 0.66s 0.67s
Check Time 4.43s (± 1.29%) 4.42s (± 0.57%) -0.00s (- 0.07%) 4.38s 4.50s
Emit Time 3.05s (± 1.12%) 3.05s (± 0.80%) -0.00s (- 0.10%) 2.99s 3.09s
Total Time 9.46s (± 0.62%) 9.40s (± 0.42%) -0.06s (- 0.63%) 9.30s 9.48s
Angular - node (v8.9.0, x86)
Memory used 198,216k (± 0.02%) 197,465k (± 0.02%) -751k (- 0.38%) 197,390k 197,564k
Parse Time 2.04s (± 0.88%) 2.04s (± 0.65%) -0.00s (- 0.20%) 2.01s 2.07s
Bind Time 0.96s (± 0.71%) 0.95s (± 0.97%) -0.00s (- 0.42%) 0.94s 0.98s
Check Time 4.66s (± 0.60%) 4.58s (± 0.61%) -0.08s (- 1.67%) 4.54s 4.65s
Emit Time 5.71s (± 1.72%) 5.70s (± 1.13%) -0.01s (- 0.21%) 5.61s 5.91s
Total Time 13.37s (± 0.93%) 13.27s (± 0.43%) -0.10s (- 0.71%) 13.19s 13.43s
Monaco - node (v8.9.0, x86)
Memory used 203,273k (± 0.02%) 202,402k (± 0.02%) -871k (- 0.43%) 202,303k 202,499k
Parse Time 1.62s (± 0.93%) 1.61s (± 0.58%) -0.01s (- 0.56%) 1.59s 1.63s
Bind Time 0.72s (± 0.62%) 0.72s (± 0.86%) +0.00s (+ 0.42%) 0.71s 0.74s
Check Time 4.88s (± 0.30%) 4.81s (± 0.41%) -0.07s (- 1.52%) 4.76s 4.84s
Emit Time 3.17s (± 0.42%) 3.15s (± 0.60%) -0.02s (- 0.50%) 3.13s 3.21s
Total Time 10.39s (± 0.29%) 10.30s (± 0.20%) -0.09s (- 0.90%) 10.26s 10.34s
TFS - node (v8.9.0, x86)
Memory used 178,573k (± 0.02%) 177,700k (± 0.02%) -873k (- 0.49%) 177,617k 177,785k
Parse Time 1.31s (± 0.75%) 1.31s (± 0.92%) +0.00s (+ 0.15%) 1.29s 1.34s
Bind Time 0.64s (± 1.51%) 0.64s (± 0.75%) -0.00s (- 0.62%) 0.63s 0.65s
Check Time 4.30s (± 0.54%) 4.19s (± 0.47%) -0.11s (- 2.53%) 4.15s 4.23s
Emit Time 2.85s (± 1.07%) 2.84s (± 0.87%) -0.01s (- 0.28%) 2.76s 2.89s
Total Time 9.10s (± 0.42%) 8.98s (± 0.47%) -0.12s (- 1.30%) 8.88s 9.05s
Angular - node (v9.0.0, x64)
Memory used 349,775k (± 0.01%) 348,386k (± 0.02%) -1,389k (- 0.40%) 348,239k 348,575k
Parse Time 1.83s (± 0.54%) 1.82s (± 0.45%) -0.01s (- 0.66%) 1.80s 1.84s
Bind Time 0.78s (± 0.48%) 0.78s (± 0.47%) +0.00s (+ 0.13%) 0.77s 0.78s
Check Time 4.87s (± 0.56%) 4.80s (± 0.59%) -0.07s (- 1.40%) 4.75s 4.85s
Emit Time 5.78s (± 0.55%) 5.72s (± 1.41%) -0.06s (- 0.99%) 5.52s 5.86s
Total Time 13.25s (± 0.31%) 13.12s (± 0.74%) -0.14s (- 1.03%) 12.87s 13.29s
Monaco - node (v9.0.0, x64)
Memory used 363,498k (± 0.02%) 361,855k (± 0.01%) -1,644k (- 0.45%) 361,731k 361,982k
Parse Time 1.31s (± 0.44%) 1.32s (± 0.53%) +0.01s (+ 0.69%) 1.30s 1.33s
Bind Time 0.83s (± 1.62%) 0.84s (± 1.13%) +0.01s (+ 0.72%) 0.82s 0.85s
Check Time 5.02s (± 1.68%) 4.97s (± 1.93%) -0.05s (- 0.96%) 4.81s 5.15s
Emit Time 3.11s (± 5.66%) 3.11s (± 5.70%) -0.00s (- 0.06%) 2.84s 3.38s
Total Time 10.28s (± 1.09%) 10.24s (± 1.04%) -0.04s (- 0.36%) 10.02s 10.40s
TFS - node (v9.0.0, x64)
Memory used 317,519k (± 0.01%) 315,840k (± 0.01%) -1,679k (- 0.53%) 315,762k 315,939k
Parse Time 1.04s (± 0.55%) 1.04s (± 0.43%) -0.00s (- 0.19%) 1.03s 1.05s
Bind Time 0.62s (± 0.76%) 0.62s (± 0.54%) 0.00s ( 0.00%) 0.61s 0.63s
Check Time 4.37s (± 0.44%) 4.30s (± 0.46%) -0.06s (- 1.47%) 4.26s 4.35s
Emit Time 3.20s (± 0.45%) 3.19s (± 0.46%) -0.01s (- 0.28%) 3.15s 3.22s
Total Time 9.23s (± 0.30%) 9.15s (± 0.36%) -0.08s (- 0.85%) 9.08s 9.21s
Angular - node (v9.0.0, x86)
Memory used 198,335k (± 0.04%) 197,594k (± 0.03%) -741k (- 0.37%) 197,431k 197,749k
Parse Time 1.73s (± 0.52%) 1.74s (± 0.84%) +0.01s (+ 0.69%) 1.71s 1.78s
Bind Time 0.90s (± 0.41%) 0.90s (± 0.74%) +0.00s (+ 0.45%) 0.89s 0.92s
Check Time 4.34s (± 0.71%) 4.29s (± 0.61%) -0.05s (- 1.24%) 4.23s 4.36s
Emit Time 5.49s (± 0.58%) 5.51s (± 0.70%) +0.02s (+ 0.38%) 5.42s 5.61s
Total Time 12.46s (± 0.38%) 12.44s (± 0.44%) -0.02s (- 0.13%) 12.31s 12.57s
Monaco - node (v9.0.0, x86)
Memory used 203,346k (± 0.02%) 202,471k (± 0.03%) -876k (- 0.43%) 202,329k 202,634k
Parse Time 1.35s (± 0.44%) 1.34s (± 0.61%) -0.00s (- 0.22%) 1.32s 1.36s
Bind Time 0.64s (± 0.90%) 0.64s (± 0.62%) +0.00s (+ 0.16%) 0.63s 0.65s
Check Time 4.69s (± 0.35%) 4.65s (± 0.50%) -0.05s (- 1.06%) 4.60s 4.71s
Emit Time 3.09s (± 0.92%) 3.10s (± 0.67%) +0.01s (+ 0.26%) 3.06s 3.14s
Total Time 9.77s (± 0.33%) 9.73s (± 0.37%) -0.04s (- 0.43%) 9.67s 9.80s
TFS - node (v9.0.0, x86)
Memory used 178,633k (± 0.02%) 177,727k (± 0.02%) -906k (- 0.51%) 177,652k 177,803k
Parse Time 1.06s (± 0.69%) 1.07s (± 0.88%) +0.01s (+ 0.75%) 1.04s 1.08s
Bind Time 0.58s (± 0.96%) 0.58s (± 0.90%) +0.00s (+ 0.17%) 0.57s 0.59s
Check Time 4.15s (± 0.65%) 4.06s (± 0.99%) -0.09s (- 2.17%) 3.98s 4.18s
Emit Time 2.77s (± 0.62%) 2.77s (± 1.09%) -0.00s (- 0.18%) 2.68s 2.83s
Total Time 8.57s (± 0.43%) 8.49s (± 0.76%) -0.08s (- 0.96%) 8.39s 8.65s
System
Machine Namets-ci-ubuntu
Platformlinux 4.4.0-161-generic
Architecturex64
Available Memory16 GB
Available Memory9 GB
CPUs4 × Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz
Hosts
  • node (v12.1.0, x64)
  • node (v8.9.0, x64)
  • node (v8.9.0, x86)
  • node (v9.0.0, x64)
  • node (v9.0.0, x86)
Scenarios
  • Angular - node (v12.1.0, x64)
  • Angular - node (v8.9.0, x64)
  • Angular - node (v8.9.0, x86)
  • Angular - node (v9.0.0, x64)
  • Angular - node (v9.0.0, x86)
  • Monaco - node (v12.1.0, x64)
  • Monaco - node (v8.9.0, x64)
  • Monaco - node (v8.9.0, x86)
  • Monaco - node (v9.0.0, x64)
  • Monaco - node (v9.0.0, x86)
  • TFS - node (v12.1.0, x64)
  • TFS - node (v8.9.0, x64)
  • TFS - node (v8.9.0, x86)
  • TFS - node (v9.0.0, x64)
  • TFS - node (v9.0.0, x86)
Benchmark Name Iterations
Current 33510 10
Baseline master 10

@ahejlsberg
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Optimized our flow assignment caching scheme for an overall ~2% reduction in check time. Now, we only cache when resolution of the cached value involves a recursive invocation of getFlowTypeOfReference (because only then is the operation potentially expensive). Also, by moving the caching logic into getInitialOrAssignedType we no longer need to compute and store a cache key.

weswigham
weswigham reviewed Sep 20, 2019
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src/compiler/checker.ts
@@ -16990,6 +16984,7 @@ namespace ts {
if (!reference.flowNode || !couldBeUninitialized && !(declaredType.flags & TypeFlags.Narrowable)) {
return declaredType;
}
flowInvocationCount++;
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Nothing ever decrements this - that intentional?

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Yes, it's just a monotonically increasing count that allows us to detect if the function was (recursively) invoked.

@ahejlsberg ahejlsberg merged commit 10e3f11 into master Sep 20, 2019
@ahejlsberg ahejlsberg deleted the controlFlowLoopCaching branch September 20, 2019 21:09
@DanielRosenwasser DanielRosenwasser mentioned this pull request Oct 18, 2019
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@weswigham weswigham weswigham approved these changes

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@ahejlsberg @typescript-bot @weswigham