Add fastpath to isRelatedTo for type references

[Wesley Wigham (weswigham)]

Fixes #37344

This is an alternative to #37423. Rather than deferring conditional simplification, we introduce a fastpath for relating type references to primitives, which occurs before normalization, this way we don't pull on the type arguments for deferred type references unless we're much more likely to actually need their structure to resolve the relationship.

[Wesley Wigham (weswigham)]

TypeScript Bot (@typescript-bot) perf test this

[TypeScript Bot (typescript-bot)]

Heya Wesley Wigham (@weswigham), I've started to run the perf test suite on this PR at 5d2149c. You can monitor the build here.

Update: The results are in!

[TypeScript Bot (typescript-bot)]

Wesley Wigham (@weswigham)
The results of the perf run you requested are in!

Here they are:

Comparison Report - master..37481

Metric	master	37481	Delta	Best	Worst
Angular - node (v10.16.3, x64)
Memory used	327,882k (± 0.03%)	327,346k (± 0.02%)	-536k (- 0.16%)	327,249k	327,558k
Parse Time	1.63s (± 0.71%)	1.62s (± 0.40%)	-0.01s (- 0.31%)	1.61s	1.63s
Bind Time	0.89s (± 0.53%)	0.89s (± 0.95%)	+0.00s (+ 0.11%)	0.87s	0.91s
Check Time	4.75s (± 0.56%)	4.77s (± 0.47%)	+0.01s (+ 0.25%)	4.73s	4.83s
Emit Time	5.33s (± 0.79%)	5.32s (± 0.45%)	-0.01s (- 0.17%)	5.26s	5.39s
Total Time	12.61s (± 0.35%)	12.61s (± 0.31%)	+0.00s (+ 0.02%)	12.52s	12.68s
Monaco - node (v10.16.3, x64)
Memory used	327,093k (± 0.02%)	327,077k (± 0.02%)	-17k (- 0.01%)	326,986k	327,249k
Parse Time	1.26s (± 0.75%)	1.26s (± 0.71%)	-0.00s (- 0.08%)	1.23s	1.28s
Bind Time	0.78s (± 0.48%)	0.77s (± 0.44%)	-0.00s (- 0.26%)	0.77s	0.78s
Check Time	4.75s (± 0.20%)	4.76s (± 0.53%)	+0.00s (+ 0.02%)	4.70s	4.82s
Emit Time	2.92s (± 0.50%)	2.91s (± 0.52%)	-0.01s (- 0.38%)	2.88s	2.95s
Total Time	9.71s (± 0.19%)	9.69s (± 0.29%)	-0.02s (- 0.15%)	9.64s	9.77s
TFS - node (v10.16.3, x64)
Memory used	291,933k (± 0.02%)	291,879k (± 0.02%)	-54k (- 0.02%)	291,749k	291,981k
Parse Time	0.95s (± 0.89%)	0.95s (± 0.77%)	-0.00s (- 0.11%)	0.93s	0.96s
Bind Time	0.74s (± 0.64%)	0.74s (± 0.54%)	-0.00s (- 0.27%)	0.73s	0.75s
Check Time	4.26s (± 0.47%)	4.29s (± 0.48%)	+0.03s (+ 0.61%)	4.25s	4.33s
Emit Time	3.06s (± 1.02%)	3.05s (± 0.45%)	-0.00s (- 0.13%)	3.03s	3.09s
Total Time	9.01s (± 0.50%)	9.03s (± 0.28%)	+0.02s (+ 0.24%)	8.97s	9.08s
material-ui - node (v10.16.3, x64)
Memory used	453,263k (± 0.02%)	452,813k (± 0.00%)	-449k (- 0.10%)	452,763k	452,857k
Parse Time	1.78s (± 0.46%)	1.77s (± 0.28%)	-0.00s (- 0.11%)	1.76s	1.78s
Bind Time	0.68s (± 0.98%)	0.68s (± 0.53%)	+0.00s (+ 0.15%)	0.68s	0.69s
Check Time	13.73s (± 0.50%)	13.74s (± 0.52%)	+0.01s (+ 0.06%)	13.59s	13.89s
Emit Time	0.00s (± 0.00%)	0.00s (± 0.00%)	0.00s ( NaN%)	0.00s	0.00s
Total Time	16.19s (± 0.41%)	16.20s (± 0.46%)	+0.01s (+ 0.05%)	16.04s	16.36s
Angular - node (v12.1.0, x64)
Memory used	303,590k (± 0.02%)	302,939k (± 0.07%)	-651k (- 0.21%)	302,096k	303,205k
Parse Time	1.57s (± 0.67%)	1.57s (± 0.30%)	-0.01s (- 0.38%)	1.56s	1.58s
Bind Time	0.86s (± 0.58%)	0.87s (± 0.89%)	+0.01s (+ 0.69%)	0.85s	0.89s
Check Time	4.62s (± 0.36%)	4.64s (± 0.79%)	+0.02s (+ 0.35%)	4.58s	4.77s
Emit Time	5.50s (± 1.20%)	5.48s (± 1.65%)	-0.01s (- 0.20%)	5.40s	5.83s
Total Time	12.55s (± 0.51%)	12.56s (± 1.03%)	+0.01s (+ 0.04%)	12.46s	13.07s
Monaco - node (v12.1.0, x64)
Memory used	307,000k (± 0.01%)	307,010k (± 0.02%)	+9k (+ 0.00%)	306,889k	307,100k
Parse Time	1.21s (± 0.68%)	1.20s (± 0.41%)	-0.00s (- 0.25%)	1.19s	1.21s
Bind Time	0.74s (± 0.70%)	0.74s (± 0.40%)	-0.00s (- 0.14%)	0.73s	0.74s
Check Time	4.54s (± 0.49%)	4.56s (± 0.46%)	+0.02s (+ 0.46%)	4.52s	4.62s
Emit Time	2.94s (± 0.75%)	2.97s (± 0.76%)	+0.03s (+ 1.16%)	2.92s	3.03s
Total Time	9.43s (± 0.42%)	9.48s (± 0.40%)	+0.05s (+ 0.49%)	9.41s	9.58s
TFS - node (v12.1.0, x64)
Memory used	274,247k (± 0.03%)	274,205k (± 0.02%)	-42k (- 0.02%)	274,117k	274,305k
Parse Time	0.93s (± 0.64%)	0.93s (± 1.01%)	+0.01s (+ 0.76%)	0.91s	0.95s
Bind Time	0.71s (± 1.26%)	0.71s (± 1.06%)	+0.00s (+ 0.14%)	0.69s	0.72s
Check Time	4.17s (± 0.40%)	4.17s (± 0.19%)	+0.00s (+ 0.07%)	4.15s	4.19s
Emit Time	3.08s (± 0.83%)	3.08s (± 1.09%)	+0.01s (+ 0.26%)	3.00s	3.18s
Total Time	8.88s (± 0.42%)	8.89s (± 0.41%)	+0.02s (+ 0.20%)	8.81s	9.01s
material-ui - node (v12.1.0, x64)
Memory used	430,578k (± 0.06%)	430,305k (± 0.01%)	-273k (- 0.06%)	430,183k	430,420k
Parse Time	1.75s (± 0.28%)	1.75s (± 0.57%)	-0.00s (- 0.06%)	1.73s	1.77s
Bind Time	0.63s (± 1.03%)	0.63s (± 1.83%)	+0.00s (+ 0.32%)	0.61s	0.66s
Check Time	12.10s (± 0.61%)	12.21s (± 0.55%)	+0.11s (+ 0.89%)	12.09s	12.36s
Emit Time	0.00s (± 0.00%)	0.00s (± 0.00%)	0.00s ( NaN%)	0.00s	0.00s
Total Time	14.48s (± 0.55%)	14.59s (± 0.47%)	+0.11s (+ 0.74%)	14.48s	14.74s
Angular - node (v8.9.0, x64)
Memory used	322,859k (± 0.01%)	322,383k (± 0.02%)	-476k (- 0.15%)	322,227k	322,546k
Parse Time	2.11s (± 0.57%)	2.10s (± 0.17%)	-0.01s (- 0.66%)	2.09s	2.10s
Bind Time	0.92s (± 0.48%)	0.92s (± 0.57%)	-0.00s (- 0.33%)	0.91s	0.93s
Check Time	5.44s (± 2.14%)	5.47s (± 1.49%)	+0.04s (+ 0.66%)	5.20s	5.65s
Emit Time	6.34s (± 1.91%)	6.25s (± 0.94%)	-0.09s (- 1.36%)	6.11s	6.35s
Total Time	14.80s (± 0.95%)	14.73s (± 0.74%)	-0.07s (- 0.47%)	14.49s	14.98s
Monaco - node (v8.9.0, x64)
Memory used	325,453k (± 0.01%)	325,435k (± 0.02%)	-19k (- 0.01%)	325,320k	325,547k
Parse Time	1.54s (± 0.42%)	1.54s (± 0.40%)	+0.00s (+ 0.20%)	1.53s	1.55s
Bind Time	0.90s (± 1.17%)	0.89s (± 0.53%)	-0.01s (- 0.78%)	0.88s	0.90s
Check Time	5.36s (± 0.56%)	5.39s (± 0.48%)	+0.03s (+ 0.60%)	5.34s	5.44s
Emit Time	3.50s (± 0.63%)	3.50s (± 0.44%)	-0.00s (- 0.06%)	3.45s	3.53s
Total Time	11.29s (± 0.35%)	11.32s (± 0.31%)	+0.03s (+ 0.25%)	11.26s	11.41s
TFS - node (v8.9.0, x64)
Memory used	291,375k (± 0.02%)	291,360k (± 0.02%)	-14k (- 0.00%)	291,280k	291,491k
Parse Time	1.26s (± 0.27%)	1.26s (± 0.67%)	+0.00s (+ 0.16%)	1.24s	1.28s
Bind Time	0.74s (± 0.80%)	0.75s (± 0.74%)	+0.00s (+ 0.40%)	0.74s	0.76s
Check Time	4.86s (± 0.80%)	4.85s (± 1.46%)	-0.01s (- 0.25%)	4.74s	5.11s
Emit Time	3.32s (± 1.70%)	3.33s (± 1.97%)	+0.01s (+ 0.39%)	3.09s	3.39s
Total Time	10.18s (± 0.33%)	10.19s (± 0.53%)	+0.01s (+ 0.06%)	10.04s	10.26s
material-ui - node (v8.9.0, x64)
Memory used	455,771k (± 0.01%)	455,376k (± 0.01%)	-395k (- 0.09%)	455,241k	455,528k
Parse Time	2.11s (± 0.55%)	2.10s (± 0.64%)	-0.01s (- 0.43%)	2.09s	2.15s
Bind Time	0.81s (± 0.59%)	0.81s (± 0.99%)	+0.00s (+ 0.12%)	0.79s	0.82s
Check Time	17.61s (± 0.77%)	17.76s (± 0.62%)	+0.15s (+ 0.83%)	17.51s	18.04s
Emit Time	0.00s (± 0.00%)	0.00s (± 0.00%)	0.00s ( NaN%)	0.00s	0.00s
Total Time	20.53s (± 0.70%)	20.67s (± 0.58%)	+0.14s (+ 0.67%)	20.40s	20.97s
Angular - node (v8.9.0, x86)
Memory used	185,784k (± 0.02%)	185,545k (± 0.02%)	-239k (- 0.13%)	185,457k	185,646k
Parse Time	2.05s (± 0.40%)	2.05s (± 1.06%)	+0.00s (+ 0.20%)	2.03s	2.12s
Bind Time	1.07s (± 0.69%)	1.07s (± 0.37%)	-0.00s (- 0.09%)	1.06s	1.08s
Check Time	5.00s (± 0.54%)	5.02s (± 0.62%)	+0.02s (+ 0.38%)	4.94s	5.09s
Emit Time	6.02s (± 0.93%)	6.06s (± 0.79%)	+0.04s (+ 0.60%)	5.99s	6.18s
Total Time	14.14s (± 0.53%)	14.20s (± 0.51%)	+0.06s (+ 0.40%)	14.06s	14.38s
Monaco - node (v8.9.0, x86)
Memory used	185,232k (± 0.02%)	185,254k (± 0.02%)	+22k (+ 0.01%)	185,191k	185,325k
Parse Time	1.59s (± 0.65%)	1.59s (± 0.97%)	-0.00s (- 0.19%)	1.58s	1.65s
Bind Time	0.77s (± 0.78%)	0.77s (± 0.64%)	+0.00s (+ 0.13%)	0.76s	0.78s
Check Time	5.39s (± 0.59%)	5.40s (± 0.44%)	+0.02s (+ 0.30%)	5.34s	5.47s
Emit Time	2.89s (± 0.93%)	2.90s (± 1.10%)	+0.01s (+ 0.38%)	2.85s	2.99s
Total Time	10.63s (± 0.52%)	10.66s (± 0.36%)	+0.03s (+ 0.28%)	10.59s	10.74s
TFS - node (v8.9.0, x86)
Memory used	166,741k (± 0.01%)	166,723k (± 0.03%)	-18k (- 0.01%)	166,644k	166,854k
Parse Time	1.29s (± 0.85%)	1.28s (± 0.45%)	-0.00s (- 0.39%)	1.27s	1.30s
Bind Time	0.71s (± 0.63%)	0.71s (± 0.63%)	0.00s ( 0.00%)	0.70s	0.72s
Check Time	4.63s (± 0.74%)	4.62s (± 0.67%)	-0.01s (- 0.13%)	4.58s	4.72s
Emit Time	2.99s (± 0.79%)	2.98s (± 0.72%)	-0.01s (- 0.40%)	2.94s	3.03s
Total Time	9.62s (± 0.40%)	9.59s (± 0.42%)	-0.03s (- 0.29%)	9.50s	9.70s
material-ui - node (v8.9.0, x86)
Memory used	257,767k (± 0.01%)	257,552k (± 0.01%)	-215k (- 0.08%)	257,507k	257,602k
Parse Time	2.17s (± 0.41%)	2.17s (± 0.40%)	-0.00s (- 0.23%)	2.16s	2.20s
Bind Time	0.68s (± 1.11%)	0.69s (± 1.19%)	+0.00s (+ 0.29%)	0.67s	0.71s
Check Time	16.26s (± 0.56%)	16.36s (± 0.91%)	+0.09s (+ 0.58%)	16.13s	16.68s
Emit Time	0.00s (± 0.00%)	0.00s (± 0.00%)	0.00s ( NaN%)	0.00s	0.00s
Total Time	19.12s (± 0.45%)	19.21s (± 0.82%)	+0.09s (+ 0.49%)	18.99s	19.55s

System

Machine Name	ts-ci-ubuntu
Platform	linux 4.4.0-166-generic
Architecture	x64
Available Memory	16 GB
Available Memory	2 GB
CPUs	4 × Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz

Hosts

• node (v10.16.3, x64)
• node (v12.1.0, x64)
• node (v8.9.0, x64)
• node (v8.9.0, x86)

Scenarios

• Angular - node (v10.16.3, x64)
• Angular - node (v12.1.0, x64)
• Angular - node (v8.9.0, x64)
• Angular - node (v8.9.0, x86)
• Monaco - node (v10.16.3, x64)
• Monaco - node (v12.1.0, x64)
• Monaco - node (v8.9.0, x64)
• Monaco - node (v8.9.0, x86)
• TFS - node (v10.16.3, x64)
• TFS - node (v12.1.0, x64)
• TFS - node (v8.9.0, x64)
• TFS - node (v8.9.0, x86)
• material-ui - node (v10.16.3, x64)
• material-ui - node (v12.1.0, x64)
• material-ui - node (v8.9.0, x64)
• material-ui - node (v8.9.0, x86)

Benchmark	Name	Iterations
Current	37481	10
Baseline	master	10

[Daniel Rosenwasser (DanielRosenwasser)]

TypeScript Bot (@typescript-bot) pack this

[TypeScript Bot (typescript-bot)]

Heya Daniel Rosenwasser (@DanielRosenwasser), I've started to run the tarball bundle task on this PR at 5d2149c. You can monitor the build here.

[TypeScript Bot (typescript-bot)]

Hey Daniel Rosenwasser (@DanielRosenwasser), I've packed this into an installable tgz. You can install it for testing by referencing it in your package.json like so:

{
    "devDependencies": {
        "typescript": "https://typescript.visualstudio.com/cf7ac146-d525-443c-b23c-0d58337efebc/_apis/build/builds/69004/artifacts?artifactName=tgz&fileId=1857ACCCA14F55C27592FBE57E2A9E4E6D6C4673EAC7428C13444923DFE4EAC702&fileName=/typescript-3.9.0-insiders.20200323.tgz"
    }
}

and then running npm install.

---

There is also a playground for this build.

[Daniel Rosenwasser (DanielRosenwasser)]

Can't seem to find behavior that exhibited the case I was mentioning above. I tried

interface Foo<T> {
    yadda: T;
}

declare let x: number & Foo<string>;
declare let y: number;

x = y;
y = x;

but that doesn't seem to have any differences.

[Daniel Rosenwasser (DanielRosenwasser)]

Are type references special here? Can you just check if the source has TypeFlags.Object too?

[Wesley Wigham (weswigham)]

but that doesn't seem to have any differences.

That's because the only type flags propagated are the propagating flags ContainsWideningType | ContainsObjectOrArrayLiteral | NonInferrableType.

Are type references special here? Can you just check if the source has TypeFlags.Object too?

Maybe, I'll simplify it.

[Daniel Rosenwasser (DanielRosenwasser)]

Sorry, I misread which flags were getting propagated.

[Daniel Rosenwasser (DanielRosenwasser)]

TypeScript Bot (@typescript-bot) user test this

[TypeScript Bot (typescript-bot)]

Heya Daniel Rosenwasser (@DanielRosenwasser), I've started to run the parallelized community code test suite on this PR at fdc4e50. You can monitor the build here.

[TypeScript Bot (typescript-bot)]

The user suite test run you requested has finished and failed. I've opened a PR with the baseline diff from master.

[Wesley Wigham (weswigham)]

TypeScript Bot (@typescript-bot) perf test this
TypeScript Bot (@typescript-bot) user test this
TypeScript Bot (@typescript-bot) test this
TypeScript Bot (@typescript-bot) run dt

[TypeScript Bot (typescript-bot)]

Heya Wesley Wigham (@weswigham), I've started to run the perf test suite on this PR at 46ca0b6. You can monitor the build here.

Update: The results are in!

[TypeScript Bot (typescript-bot)]

Heya Wesley Wigham (@weswigham), I've started to run the parallelized Definitely Typed test suite on this PR at 46ca0b6. You can monitor the build here.

[TypeScript Bot (typescript-bot)]

Heya Wesley Wigham (@weswigham), I've started to run the extended test suite on this PR at 46ca0b6. You can monitor the build here.

[TypeScript Bot (typescript-bot)]

Heya Wesley Wigham (@weswigham), I've started to run the parallelized community code test suite on this PR at 46ca0b6. You can monitor the build here.

[TypeScript Bot (typescript-bot)]

Wesley Wigham (@weswigham)
The results of the perf run you requested are in!

Here they are:

Comparison Report - master..37481

Metric	master	37481	Delta	Best	Worst
Angular - node (v10.16.3, x64)
Memory used	327,713k (± 0.02%)	327,094k (± 0.02%)	-620k (- 0.19%)	326,869k	327,247k
Parse Time	1.64s (± 0.43%)	1.63s (± 0.53%)	-0.01s (- 0.67%)	1.61s	1.65s
Bind Time	0.89s (± 1.21%)	0.89s (± 0.77%)	-0.00s (- 0.56%)	0.87s	0.90s
Check Time	4.77s (± 0.50%)	4.75s (± 0.43%)	-0.02s (- 0.34%)	4.71s	4.79s
Emit Time	5.35s (± 0.67%)	5.33s (± 0.84%)	-0.02s (- 0.37%)	5.26s	5.45s
Total Time	12.65s (± 0.47%)	12.59s (± 0.54%)	-0.05s (- 0.40%)	12.48s	12.76s
Monaco - node (v10.16.3, x64)
Memory used	327,067k (± 0.02%)	327,046k (± 0.02%)	-22k (- 0.01%)	326,936k	327,213k
Parse Time	1.27s (± 0.76%)	1.27s (± 0.66%)	-0.00s (- 0.16%)	1.26s	1.30s
Bind Time	0.77s (± 0.64%)	0.78s (± 0.47%)	+0.00s (+ 0.26%)	0.77s	0.78s
Check Time	4.75s (± 0.34%)	4.75s (± 0.40%)	-0.00s (- 0.08%)	4.71s	4.78s
Emit Time	2.92s (± 0.75%)	2.92s (± 0.59%)	+0.00s (+ 0.03%)	2.89s	2.96s
Total Time	9.72s (± 0.33%)	9.71s (± 0.31%)	-0.00s (- 0.03%)	9.64s	9.78s
TFS - node (v10.16.3, x64)
Memory used	292,020k (± 0.03%)	292,008k (± 0.03%)	-12k (- 0.00%)	291,817k	292,258k
Parse Time	0.96s (± 0.54%)	0.96s (± 0.58%)	+0.00s (+ 0.31%)	0.95s	0.97s
Bind Time	0.75s (± 0.46%)	0.74s (± 0.46%)	-0.00s (- 0.54%)	0.74s	0.75s
Check Time	4.30s (± 0.58%)	4.32s (± 0.55%)	+0.02s (+ 0.49%)	4.28s	4.37s
Emit Time	3.07s (± 1.03%)	3.07s (± 0.60%)	+0.01s (+ 0.23%)	3.04s	3.11s
Total Time	9.08s (± 0.44%)	9.10s (± 0.39%)	+0.02s (+ 0.25%)	9.01s	9.17s
material-ui - node (v10.16.3, x64)
Memory used	450,162k (± 0.01%)	447,636k (± 0.01%)	-2,526k (- 0.56%)	447,535k	447,712k
Parse Time	1.78s (± 0.57%)	1.77s (± 0.43%)	-0.00s (- 0.22%)	1.76s	1.79s
Bind Time	0.68s (± 0.87%)	0.68s (± 0.70%)	-0.00s (- 0.15%)	0.67s	0.69s
Check Time	13.05s (± 0.37%)	13.11s (± 0.42%)	+0.06s (+ 0.44%)	13.00s	13.25s
Emit Time	0.00s (± 0.00%)	0.00s (± 0.00%)	0.00s ( NaN%)	0.00s	0.00s
Total Time	15.51s (± 0.30%)	15.57s (± 0.35%)	+0.05s (+ 0.34%)	15.46s	15.71s
Angular - node (v12.1.0, x64)
Memory used	303,204k (± 0.02%)	302,650k (± 0.02%)	-554k (- 0.18%)	302,517k	302,811k
Parse Time	1.59s (± 0.52%)	1.58s (± 0.53%)	-0.00s (- 0.32%)	1.56s	1.60s
Bind Time	0.87s (± 0.57%)	0.87s (± 0.66%)	+0.00s (+ 0.46%)	0.86s	0.88s
Check Time	4.62s (± 0.26%)	4.64s (± 0.28%)	+0.02s (+ 0.35%)	4.61s	4.67s
Emit Time	5.50s (± 0.46%)	5.50s (± 0.92%)	+0.01s (+ 0.16%)	5.41s	5.67s
Total Time	12.57s (± 0.20%)	12.60s (± 0.32%)	+0.03s (+ 0.20%)	12.53s	12.73s
Monaco - node (v12.1.0, x64)
Memory used	307,023k (± 0.01%)	307,005k (± 0.02%)	-18k (- 0.01%)	306,858k	307,133k
Parse Time	1.22s (± 0.56%)	1.22s (± 0.41%)	0.00s ( 0.00%)	1.20s	1.22s
Bind Time	0.74s (± 0.80%)	0.75s (± 1.04%)	+0.01s (+ 0.67%)	0.74s	0.77s
Check Time	4.56s (± 0.37%)	4.57s (± 0.32%)	+0.01s (+ 0.22%)	4.54s	4.60s
Emit Time	2.96s (± 1.03%)	2.97s (± 0.48%)	+0.01s (+ 0.20%)	2.92s	2.99s
Total Time	9.48s (± 0.42%)	9.50s (± 0.25%)	+0.02s (+ 0.20%)	9.46s	9.55s
TFS - node (v12.1.0, x64)
Memory used	274,311k (± 0.03%)	274,322k (± 0.03%)	+10k (+ 0.00%)	274,170k	274,499k
Parse Time	0.93s (± 1.18%)	0.93s (± 0.73%)	+0.00s (+ 0.21%)	0.92s	0.95s
Bind Time	0.70s (± 1.27%)	0.70s (± 0.92%)	-0.00s (- 0.28%)	0.69s	0.72s
Check Time	4.20s (± 0.32%)	4.20s (± 0.25%)	0.00s ( 0.00%)	4.17s	4.22s
Emit Time	3.09s (± 0.63%)	3.09s (± 1.07%)	+0.00s (+ 0.03%)	3.03s	3.19s
Total Time	8.93s (± 0.40%)	8.93s (± 0.33%)	-0.00s (- 0.01%)	8.86s	9.00s
material-ui - node (v12.1.0, x64)
Memory used	427,773k (± 0.02%)	425,237k (± 0.04%)	-2,536k (- 0.59%)	424,501k	425,429k
Parse Time	1.75s (± 0.39%)	1.76s (± 0.34%)	+0.00s (+ 0.11%)	1.75s	1.77s
Bind Time	0.63s (± 1.30%)	0.63s (± 0.92%)	+0.01s (+ 0.96%)	0.62s	0.65s
Check Time	11.63s (± 0.59%)	11.63s (± 0.51%)	+0.00s (+ 0.02%)	11.54s	11.79s
Emit Time	0.00s (± 0.00%)	0.00s (± 0.00%)	0.00s ( NaN%)	0.00s	0.00s
Total Time	14.01s (± 0.50%)	14.02s (± 0.43%)	+0.01s (+ 0.07%)	13.93s	14.18s
Angular - node (v8.9.0, x64)
Memory used	322,488k (± 0.02%)	322,036k (± 0.02%)	-452k (- 0.14%)	321,871k	322,214k
Parse Time	2.12s (± 0.48%)	2.11s (± 0.41%)	-0.01s (- 0.42%)	2.10s	2.13s
Bind Time	0.92s (± 0.81%)	0.92s (± 0.81%)	0.00s ( 0.00%)	0.90s	0.94s
Check Time	5.44s (± 1.44%)	5.45s (± 0.99%)	+0.01s (+ 0.20%)	5.24s	5.51s
Emit Time	6.28s (± 1.35%)	6.25s (± 2.00%)	-0.03s (- 0.43%)	6.02s	6.68s
Total Time	14.75s (± 0.35%)	14.73s (± 0.62%)	-0.03s (- 0.17%)	14.52s	14.96s
Monaco - node (v8.9.0, x64)
Memory used	325,456k (± 0.01%)	325,444k (± 0.01%)	-12k (- 0.00%)	325,379k	325,528k
Parse Time	1.54s (± 0.53%)	1.55s (± 0.53%)	+0.00s (+ 0.26%)	1.53s	1.57s
Bind Time	0.89s (± 0.38%)	0.89s (± 0.53%)	-0.00s (- 0.00%)	0.88s	0.90s
Check Time	5.32s (± 0.50%)	5.36s (± 0.44%)	+0.03s (+ 0.62%)	5.33s	5.44s
Emit Time	3.50s (± 0.79%)	3.50s (± 0.54%)	-0.00s (- 0.03%)	3.45s	3.54s
Total Time	11.26s (± 0.39%)	11.30s (± 0.26%)	+0.03s (+ 0.30%)	11.25s	11.39s
TFS - node (v8.9.0, x64)
Memory used	291,456k (± 0.01%)	291,414k (± 0.01%)	-42k (- 0.01%)	291,359k	291,507k
Parse Time	1.26s (± 0.78%)	1.26s (± 0.58%)	0.00s ( 0.00%)	1.25s	1.28s
Bind Time	0.75s (± 0.40%)	0.75s (± 0.66%)	-0.00s (- 0.27%)	0.74s	0.76s
Check Time	5.01s (± 1.73%)	4.94s (± 1.44%)	-0.07s (- 1.44%)	4.84s	5.11s
Emit Time	3.18s (± 2.20%)	3.26s (± 2.26%)	+0.08s (+ 2.55%)	3.10s	3.40s
Total Time	10.20s (± 0.47%)	10.21s (± 0.37%)	+0.01s (+ 0.08%)	10.14s	10.28s
material-ui - node (v8.9.0, x64)
Memory used	452,686k (± 0.01%)	450,180k (± 0.01%)	-2,505k (- 0.55%)	450,058k	450,272k
Parse Time	2.10s (± 0.57%)	2.12s (± 0.62%)	+0.02s (+ 0.76%)	2.11s	2.17s
Bind Time	0.81s (± 0.58%)	0.80s (± 0.97%)	-0.01s (- 1.48%)	0.79s	0.82s
Check Time	17.10s (± 0.59%)	17.18s (± 0.60%)	+0.08s (+ 0.47%)	16.91s	17.33s
Emit Time	0.00s (± 0.00%)	0.00s (± 0.00%)	0.00s ( NaN%)	0.00s	0.00s
Total Time	20.02s (± 0.52%)	20.10s (± 0.51%)	+0.08s (+ 0.42%)	19.81s	20.25s
Angular - node (v8.9.0, x86)
Memory used	185,664k (± 0.03%)	185,379k (± 0.02%)	-286k (- 0.15%)	185,305k	185,477k
Parse Time	2.06s (± 0.48%)	2.05s (± 0.52%)	-0.01s (- 0.24%)	2.04s	2.08s
Bind Time	1.07s (± 0.75%)	1.08s (± 1.00%)	+0.01s (+ 1.03%)	1.07s	1.12s
Check Time	4.99s (± 0.34%)	4.99s (± 0.87%)	+0.01s (+ 0.12%)	4.92s	5.10s
Emit Time	6.02s (± 0.62%)	6.06s (± 0.62%)	+0.04s (+ 0.63%)	5.97s	6.14s
Total Time	14.14s (± 0.23%)	14.19s (± 0.54%)	+0.05s (+ 0.35%)	14.03s	14.37s
Monaco - node (v8.9.0, x86)
Memory used	185,339k (± 0.02%)	185,354k (± 0.02%)	+15k (+ 0.01%)	185,296k	185,463k
Parse Time	1.59s (± 0.46%)	1.59s (± 0.46%)	-0.00s (- 0.00%)	1.58s	1.61s
Bind Time	0.77s (± 1.09%)	0.77s (± 0.65%)	-0.01s (- 0.78%)	0.76s	0.78s
Check Time	5.43s (± 0.61%)	5.40s (± 0.51%)	-0.03s (- 0.61%)	5.36s	5.50s
Emit Time	2.85s (± 0.59%)	2.86s (± 0.49%)	+0.01s (+ 0.21%)	2.83s	2.89s
Total Time	10.64s (± 0.50%)	10.61s (± 0.33%)	-0.03s (- 0.27%)	10.53s	10.73s
TFS - node (v8.9.0, x86)
Memory used	166,891k (± 0.03%)	166,879k (± 0.01%)	-11k (- 0.01%)	166,825k	166,930k
Parse Time	1.29s (± 0.64%)	1.29s (± 0.45%)	+0.00s (+ 0.08%)	1.28s	1.30s
Bind Time	0.72s (± 0.90%)	0.71s (± 0.56%)	-0.01s (- 1.25%)	0.70s	0.72s
Check Time	4.64s (± 0.67%)	4.63s (± 0.39%)	-0.01s (- 0.30%)	4.59s	4.67s
Emit Time	3.01s (± 2.83%)	3.00s (± 1.72%)	-0.02s (- 0.53%)	2.94s	3.20s
Total Time	9.66s (± 0.82%)	9.62s (± 0.67%)	-0.03s (- 0.35%)	9.55s	9.87s
material-ui - node (v8.9.0, x86)
Memory used	256,233k (± 0.01%)	254,984k (± 0.02%)	-1,249k (- 0.49%)	254,912k	255,115k
Parse Time	2.17s (± 0.44%)	2.19s (± 0.78%)	+0.01s (+ 0.55%)	2.15s	2.23s
Bind Time	0.69s (± 0.87%)	0.68s (± 1.11%)	-0.00s (- 0.15%)	0.67s	0.70s
Check Time	15.62s (± 0.61%)	15.67s (± 0.55%)	+0.05s (+ 0.33%)	15.43s	15.82s
Emit Time	0.00s (± 0.00%)	0.00s (± 0.00%)	0.00s ( NaN%)	0.00s	0.00s
Total Time	18.48s (± 0.51%)	18.54s (± 0.50%)	+0.06s (+ 0.34%)	18.28s	18.74s

System

Machine Name	ts-ci-ubuntu
Platform	linux 4.4.0-166-generic
Architecture	x64
Available Memory	16 GB
Available Memory	1 GB
CPUs	4 × Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz

Hosts

• node (v10.16.3, x64)
• node (v12.1.0, x64)
• node (v8.9.0, x64)
• node (v8.9.0, x86)

Scenarios

• Angular - node (v10.16.3, x64)
• Angular - node (v12.1.0, x64)
• Angular - node (v8.9.0, x64)
• Angular - node (v8.9.0, x86)
• Monaco - node (v10.16.3, x64)
• Monaco - node (v12.1.0, x64)
• Monaco - node (v8.9.0, x64)
• Monaco - node (v8.9.0, x86)
• TFS - node (v10.16.3, x64)
• TFS - node (v12.1.0, x64)
• TFS - node (v8.9.0, x64)
• TFS - node (v8.9.0, x86)
• material-ui - node (v10.16.3, x64)
• material-ui - node (v12.1.0, x64)
• material-ui - node (v8.9.0, x64)
• material-ui - node (v8.9.0, x86)

Benchmark	Name	Iterations
Current	37481	10
Baseline	master	10

[Wesley Wigham (weswigham)]

TypeScript Bot (@typescript-bot) pack this

[TypeScript Bot (typescript-bot)]

Heya Wesley Wigham (@weswigham), I've started to run the tarball bundle task on this PR at 46ca0b6. You can monitor the build here.

[TypeScript Bot (typescript-bot)]

Hey Wesley Wigham (@weswigham), I've packed this into an installable tgz. You can install it for testing by referencing it in your package.json like so:

{
    "devDependencies": {
        "typescript": "https://typescript.visualstudio.com/cf7ac146-d525-443c-b23c-0d58337efebc/_apis/build/builds/70474/artifacts?artifactName=tgz&fileId=852AAA3F7F68AC204E5AA4F7A0756B96EC5691E6475B37C63DF4440BE526348302&fileName=/typescript-3.9.0-insiders.20200406.tgz"
    }
}

and then running npm install.

[Wesley Wigham (weswigham)]

Anders Hejlsberg (@ahejlsberg) can I get a review?