Use var in Debug namespace

[jakebailey]

Pulled out of #53228 (which itself was pulled out of #51455).

My end intent is that we move Debug to a module (#51441) which will effectively do this via esbuild, but I'm curious as to the perf benefit of just this one change.

[jakebailey]

@typescript-bot perf test this

[typescript-bot]

Heya @jakebailey, I've started to run the perf test suite on this PR at 030c159. You can monitor the build here.

Update: The results are in!

[typescript-bot]

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

Here they are:

Compiler

Comparison Report - main..55011

Metric	main	55011	Delta	Best	Worst	p-value
Angular - node (v18.10.0, x64)
Memory used	366,867k (± 0.01%)	366,848k (± 0.01%)	~	366,795k	366,874k	p=0.423 n=6
Parse Time	3.38s (± 0.52%)	3.40s (± 0.47%)	~	3.39s	3.43s	p=0.096 n=6
Bind Time	1.12s (± 0.36%)	1.12s (± 0.67%)	~	1.11s	1.13s	p=1.000 n=6
Check Time	8.89s (± 0.47%)	8.87s (± 0.51%)	~	8.81s	8.93s	p=0.419 n=6
Emit Time	7.53s (± 0.43%)	7.53s (± 0.76%)	~	7.48s	7.64s	p=0.747 n=6
Total Time	20.92s (± 0.30%)	20.92s (± 0.44%)	~	20.85s	21.09s	p=0.688 n=6
Compiler-Unions - node (v18.10.0, x64)
Memory used	191,140k (± 0.03%)	193,927k (± 1.62%)	~	190,993k	196,893k	p=0.575 n=6
Parse Time	1.51s (± 0.27%)	1.51s (± 0.97%)	~	1.49s	1.53s	p=0.863 n=6
Bind Time	0.77s (± 0.53%)	0.77s (± 0.82%)	~	0.76s	0.78s	p=0.673 n=6
Check Time	9.54s (± 0.48%)	9.47s (± 1.76%)	~	9.25s	9.69s	p=0.748 n=6
Emit Time	2.76s (± 0.44%)	2.75s (± 1.55%)	~	2.69s	2.80s	p=0.935 n=6
Total Time	14.57s (± 0.32%)	14.50s (± 1.25%)	~	14.30s	14.74s	p=0.873 n=6
Monaco - node (v18.10.0, x64)
Memory used	346,873k (± 0.01%)	346,878k (± 0.01%)	~	346,840k	346,943k	p=0.936 n=6
Parse Time	2.62s (± 0.88%)	2.61s (± 1.07%)	~	2.58s	2.66s	p=0.628 n=6
Bind Time	1.02s (± 0.51%)	1.01s (± 0.88%)	~	1.00s	1.02s	p=0.190 n=6
Check Time	7.26s (± 0.42%)	7.27s (± 0.26%)	~	7.24s	7.29s	p=0.517 n=6
Emit Time	4.22s (± 0.53%)	4.22s (± 0.47%)	~	4.19s	4.24s	p=0.676 n=6
Total Time	15.12s (± 0.42%)	15.11s (± 0.31%)	~	15.03s	15.17s	p=0.871 n=6
TFS - node (v18.10.0, x64)
Memory used	300,891k (± 0.00%)	300,904k (± 0.01%)	~	300,886k	300,924k	p=0.093 n=6
Parse Time	2.08s (± 0.66%)	2.08s (± 0.79%)	~	2.06s	2.10s	p=0.934 n=6
Bind Time	1.13s (± 0.93%)	1.12s (± 0.56%)	~	1.11s	1.13s	p=0.388 n=6
Check Time	6.65s (± 0.66%)	6.66s (± 0.56%)	~	6.61s	6.70s	p=0.807 n=6
Emit Time	3.85s (± 0.81%)	3.85s (± 1.01%)	~	3.80s	3.90s	p=0.809 n=6
Total Time	13.71s (± 0.39%)	13.72s (± 0.52%)	~	13.62s	13.81s	p=1.000 n=6
material-ui - node (v18.10.0, x64)
Memory used	482,384k (± 0.01%)	482,474k (± 0.02%)	~	482,406k	482,618k	p=0.066 n=6
Parse Time	3.05s (± 2.63%)	3.11s (± 1.61%)	~	3.01s	3.15s	p=0.124 n=6
Bind Time	0.97s (± 5.89%)	0.93s (± 5.18%)	~	0.91s	1.03s	p=0.180 n=6
Check Time	17.28s (± 0.61%)	17.35s (± 0.38%)	~	17.26s	17.41s	p=0.378 n=6
Emit Time	0.00s (± 0.00%)	0.00s (± 0.00%)	~	0.00s	0.00s	p=1.000 n=6
Total Time	21.30s (± 0.59%)	21.39s (± 0.34%)	~	21.28s	21.46s	p=0.199 n=6
xstate - node (v18.10.0, x64)
Memory used	563,695k (± 0.02%)	563,711k (± 0.02%)	~	563,608k	563,862k	p=1.000 n=6
Parse Time	3.85s (± 0.64%)	3.85s (± 0.91%)	~	3.80s	3.88s	p=1.000 n=6
Bind Time	1.65s (± 0.50%)	1.65s (± 1.06%)	~	1.64s	1.68s	p=1.000 n=6
Check Time	2.82s (± 1.18%)	2.80s (± 0.69%)	~	2.77s	2.83s	p=0.195 n=6
Emit Time	0.08s (± 0.00%)	0.08s (± 0.00%)	~	0.08s	0.08s	p=1.000 n=6
Total Time	8.41s (± 0.59%)	8.39s (± 0.63%)	~	8.33s	8.45s	p=0.470 n=6
Angular - node (v16.17.1, x64)
Memory used	366,228k (± 0.01%)	366,239k (± 0.01%)	~	366,217k	366,277k	p=0.230 n=6
Parse Time	3.57s (± 0.41%)	3.57s (± 0.23%)	~	3.56s	3.58s	p=0.730 n=6
Bind Time	1.18s (± 0.44%)	1.18s (± 0.46%)	~	1.18s	1.19s	p=0.640 n=6
Check Time	9.66s (± 0.53%)	9.63s (± 0.37%)	~	9.58s	9.68s	p=0.332 n=6
Emit Time	7.98s (± 0.65%)	7.97s (± 0.64%)	~	7.88s	8.02s	p=0.810 n=6
Total Time	22.38s (± 0.38%)	22.36s (± 0.17%)	~	22.30s	22.40s	p=0.810 n=6
Compiler-Unions - node (v16.17.1, x64)
Memory used	192,934k (± 0.02%)	192,928k (± 0.01%)	~	192,914k	192,955k	p=0.520 n=6
Parse Time	1.59s (± 0.66%)	1.59s (± 0.86%)	~	1.56s	1.60s	p=0.343 n=6
Bind Time	0.82s (± 0.50%)	0.83s (± 1.01%)	~	0.82s	0.84s	p=0.527 n=6
Check Time	10.15s (± 0.42%)	10.14s (± 0.70%)	~	10.02s	10.24s	p=1.000 n=6
Emit Time	3.02s (± 0.58%)	3.02s (± 0.88%)	~	2.98s	3.05s	p=1.000 n=6
Total Time	15.58s (± 0.20%)	15.57s (± 0.42%)	~	15.50s	15.69s	p=0.377 n=6
Monaco - node (v16.17.1, x64)
Memory used	346,178k (± 0.00%)	346,191k (± 0.01%)	~	346,156k	346,215k	p=0.297 n=6
Parse Time	2.77s (± 0.68%)	2.77s (± 0.58%)	~	2.74s	2.79s	p=0.803 n=6
Bind Time	1.08s (± 0.76%)	1.07s (± 0.38%)	~	1.07s	1.08s	p=0.248 n=6
Check Time	7.98s (± 0.49%)	8.01s (± 0.60%)	~	7.96s	8.07s	p=0.467 n=6
Emit Time	4.45s (± 0.64%)	4.45s (± 0.78%)	~	4.41s	4.51s	p=0.871 n=6
Total Time	16.28s (± 0.48%)	16.30s (± 0.51%)	~	16.22s	16.44s	p=0.688 n=6
TFS - node (v16.17.1, x64)
Memory used	300,244k (± 0.00%)	300,240k (± 0.01%)	~	300,213k	300,258k	p=0.688 n=6
Parse Time	2.20s (± 0.45%)	2.20s (± 0.63%)	~	2.17s	2.21s	p=0.452 n=6
Bind Time	1.22s (± 1.24%)	1.20s (± 1.01%)	-0.02s (- 1.64%)	1.19s	1.22s	p=0.030 n=6
Check Time	7.31s (± 0.46%)	7.32s (± 0.35%)	~	7.28s	7.36s	p=0.936 n=6
Emit Time	4.32s (± 0.92%)	4.32s (± 1.06%)	~	4.27s	4.39s	p=1.000 n=6
Total Time	15.05s (± 0.51%)	15.03s (± 0.42%)	~	14.95s	15.14s	p=0.376 n=6
material-ui - node (v16.17.1, x64)
Memory used	481,690k (± 0.02%)	481,746k (± 0.01%)	~	481,636k	481,829k	p=0.336 n=6
Parse Time	3.26s (± 0.50%)	3.28s (± 0.27%)	+0.02s (+ 0.72%)	3.27s	3.29s	p=0.028 n=6
Bind Time	0.95s (± 0.88%)	0.96s (± 0.78%)	~	0.95s	0.97s	p=0.652 n=6
Check Time	18.30s (± 0.56%)	18.36s (± 1.24%)	~	18.18s	18.75s	p=0.809 n=6
Emit Time	0.00s (± 0.00%)	0.00s (± 0.00%)	~	0.00s	0.00s	p=1.000 n=6
Total Time	22.51s (± 0.51%)	22.59s (± 1.07%)	~	22.40s	23.01s	p=0.688 n=6
xstate - node (v16.17.1, x64)
Memory used	561,248k (± 0.02%)	561,306k (± 0.02%)	~	561,166k	561,511k	p=0.378 n=6
Parse Time	4.01s (± 0.34%)	4.02s (± 0.19%)	~	4.01s	4.03s	p=0.241 n=6
Bind Time	1.73s (± 5.56%)	1.79s (± 0.65%)	~	1.77s	1.80s	p=0.870 n=6
Check Time	3.13s (± 3.38%)	3.06s (± 0.34%)	~	3.04s	3.07s	p=0.167 n=6
Emit Time	0.09s (± 5.53%)	0.10s (± 5.76%)	~	0.09s	0.10s	p=0.640 n=6
Total Time	8.96s (± 0.30%)	8.96s (± 0.19%)	~	8.93s	8.98s	p=1.000 n=6
Angular - node (v14.21.3, x64)
Memory used	360,177k (± 0.01%)	360,173k (± 0.01%)	~	360,146k	360,204k	p=0.936 n=6
Parse Time	3.72s (± 0.53%)	3.73s (± 0.52%)	~	3.70s	3.76s	p=0.806 n=6
Bind Time	1.22s (± 0.62%)	1.22s (± 0.73%)	~	1.21s	1.23s	p=0.798 n=6
Check Time	10.07s (± 0.54%)	10.11s (± 0.23%)	~	10.08s	10.14s	p=0.225 n=6
Emit Time	8.31s (± 0.24%)	8.30s (± 0.26%)	~	8.28s	8.34s	p=0.465 n=6
Total Time	23.32s (± 0.31%)	23.36s (± 0.12%)	~	23.32s	23.39s	p=0.422 n=6
Compiler-Unions - node (v14.21.3, x64)
Memory used	188,178k (± 0.02%)	188,146k (± 0.01%)	~	188,120k	188,171k	p=0.173 n=6
Parse Time	1.61s (± 0.47%)	1.61s (± 0.47%)	~	1.60s	1.62s	p=1.000 n=6
Bind Time	0.84s (± 0.65%)	0.84s (± 0.97%)	~	0.84s	0.86s	p=0.441 n=6
Check Time	10.28s (± 0.69%)	10.26s (± 0.67%)	~	10.16s	10.33s	p=0.747 n=6
Emit Time	3.12s (± 0.78%)	3.13s (± 0.72%)	~	3.10s	3.16s	p=0.465 n=6
Total Time	15.85s (± 0.54%)	15.84s (± 0.50%)	~	15.74s	15.94s	p=0.873 n=6
Monaco - node (v14.21.3, x64)
Memory used	341,169k (± 0.01%)	341,180k (± 0.01%)	~	341,154k	341,213k	p=0.471 n=6
Parse Time	2.81s (± 0.71%)	2.82s (± 0.52%)	~	2.80s	2.84s	p=0.465 n=6
Bind Time	1.10s (± 0.74%)	1.10s (± 0.00%)	~	1.10s	1.10s	p=0.290 n=6
Check Time	8.27s (± 0.39%)	8.29s (± 0.60%)	~	8.23s	8.38s	p=0.618 n=6
Emit Time	4.67s (± 0.66%)	4.68s (± 0.40%)	~	4.66s	4.71s	p=0.293 n=6
Total Time	16.84s (± 0.21%)	16.89s (± 0.33%)	~	16.82s	16.99s	p=0.167 n=6
TFS - node (v14.21.3, x64)
Memory used	295,332k (± 0.00%)	295,345k (± 0.00%)	~	295,332k	295,366k	p=0.109 n=6
Parse Time	2.44s (± 1.09%)	2.44s (± 0.56%)	~	2.42s	2.46s	p=0.625 n=6
Bind Time	1.08s (± 0.70%)	1.07s (± 0.59%)	-0.01s (- 1.08%)	1.06s	1.08s	p=0.027 n=6
Check Time	7.60s (± 0.51%)	7.61s (± 0.48%)	~	7.57s	7.67s	p=0.628 n=6
Emit Time	4.29s (± 1.18%)	4.29s (± 0.77%)	~	4.25s	4.33s	p=0.688 n=6
Total Time	15.42s (± 0.44%)	15.41s (± 0.28%)	~	15.35s	15.47s	p=0.936 n=6
material-ui - node (v14.21.3, x64)
Memory used	477,172k (± 0.00%)	477,268k (± 0.00%)	+96k (+ 0.02%)	477,241k	477,287k	p=0.005 n=6
Parse Time	3.32s (± 0.41%)	3.35s (± 0.41%)	+0.04s (+ 1.16%)	3.34s	3.37s	p=0.005 n=6
Bind Time	0.99s (± 0.76%)	0.99s (± 0.64%)	~	0.98s	1.00s	p=0.718 n=6
Check Time	19.14s (± 0.72%)	19.13s (± 0.32%)	~	19.05s	19.23s	p=0.872 n=6
Emit Time	0.00s (± 0.00%)	0.00s (± 0.00%)	~	0.00s	0.00s	p=1.000 n=6
Total Time	23.44s (± 0.64%)	23.47s (± 0.27%)	~	23.40s	23.58s	p=0.470 n=6
xstate - node (v14.21.3, x64)
Memory used	550,156k (± 0.00%)	550,145k (± 0.01%)	~	550,095k	550,183k	p=0.873 n=6
Parse Time	4.24s (± 0.64%)	4.23s (± 0.43%)	~	4.21s	4.26s	p=0.743 n=6
Bind Time	1.68s (± 0.75%)	1.68s (± 0.53%)	~	1.67s	1.69s	p=0.933 n=6
Check Time	3.12s (± 0.69%)	3.12s (± 0.26%)	~	3.11s	3.13s	p=0.682 n=6
Emit Time	0.09s (± 0.00%)	0.09s (± 0.00%)	~	0.09s	0.09s	p=1.000 n=6
Total Time	9.13s (± 0.24%)	9.12s (± 0.23%)	~	9.10s	9.16s	p=0.288 n=6

System

Machine Name	ts-ci-ubuntu
Platform	linux 5.4.0-148-generic
Architecture	x64
Available Memory	16 GB
Available Memory	15 GB
CPUs	4 × Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz

Hosts

• node (v18.10.0, x64)
• node (v16.17.1, x64)
• node (v14.21.3, x64)

Scenarios

• Angular - node (v18.10.0, x64)
• Angular - node (v16.17.1, x64)
• Angular - node (v14.21.3, x64)
• Compiler-Unions - node (v18.10.0, x64)
• Compiler-Unions - node (v16.17.1, x64)
• Compiler-Unions - node (v14.21.3, x64)
• Monaco - node (v18.10.0, x64)
• Monaco - node (v16.17.1, x64)
• Monaco - node (v14.21.3, x64)
• TFS - node (v18.10.0, x64)
• TFS - node (v16.17.1, x64)
• TFS - node (v14.21.3, x64)
• material-ui - node (v18.10.0, x64)
• material-ui - node (v16.17.1, x64)
• material-ui - node (v14.21.3, x64)
• xstate - node (v18.10.0, x64)
• xstate - node (v16.17.1, x64)
• xstate - node (v14.21.3, x64)

Benchmark	Name	Iterations
Current	55011	6
Baseline	main	6

TSServer

Comparison Report - main..55011

Metric	main	55011	Delta	Best	Worst	p-value
Compiler-UnionsTSServer - node (v18.10.0, x64)
Req 1 - updateOpen	2,550ms (± 0.71%)	2,541ms (± 0.35%)	~	2,535ms	2,554ms	p=0.572 n=6
Req 2 - geterr	5,362ms (± 0.73%)	5,370ms (± 0.38%)	~	5,340ms	5,397ms	p=0.810 n=6
Req 3 - references	346ms (± 0.46%)	345ms (± 0.28%)	~	343ms	346ms	p=0.285 n=6
Req 4 - navto	288ms (± 0.29%)	288ms (± 0.44%)	~	287ms	290ms	p=0.530 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	75ms (± 0.68%)	75ms (± 1.31%)	~	74ms	77ms	p=0.504 n=6
CompilerTSServer - node (v18.10.0, x64)
Req 1 - updateOpen	2,637ms (± 0.93%)	2,630ms (± 1.15%)	~	2,596ms	2,672ms	p=0.575 n=6
Req 2 - geterr	4,099ms (± 0.51%)	4,099ms (± 0.41%)	~	4,070ms	4,116ms	p=0.810 n=6
Req 3 - references	350ms (± 0.57%)	351ms (± 0.47%)	~	349ms	353ms	p=0.622 n=6
Req 4 - navto	288ms (± 0.19%)	287ms (± 0.56%)	~	285ms	289ms	p=0.675 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	81ms (± 3.47%)	79ms (± 2.65%)	~	77ms	83ms	p=0.285 n=6
xstateTSServer - node (v18.10.0, x64)
Req 1 - updateOpen	3,093ms (± 0.53%)	3,097ms (± 0.33%)	~	3,085ms	3,109ms	p=0.574 n=6
Req 2 - geterr	1,600ms (± 0.68%)	1,584ms (± 0.83%)	~	1,573ms	1,605ms	p=0.054 n=6
Req 3 - references	114ms (± 1.55%)	117ms (± 6.47%)	~	113ms	132ms	p=0.549 n=6
Req 4 - navto	370ms (± 0.84%)	370ms (± 0.23%)	~	369ms	371ms	p=1.000 n=6
Req 5 - completionInfo count	2,872 (± 0.00%)	2,872 (± 0.00%)	~	2,872	2,872	p=1.000 n=6
Req 5 - completionInfo	379ms (± 1.98%)	387ms (± 1.58%)	~	376ms	394ms	p=0.078 n=6
Compiler-UnionsTSServer - node (v16.17.1, x64)
Req 1 - updateOpen	2,651ms (± 0.61%)	2,647ms (± 0.36%)	~	2,636ms	2,663ms	p=0.378 n=6
Req 2 - geterr	5,970ms (± 0.36%)	5,997ms (± 0.37%)	~	5,969ms	6,023ms	p=0.066 n=6
Req 3 - references	355ms (± 1.45%)	351ms (± 1.39%)	~	346ms	360ms	p=0.167 n=6
Req 4 - navto	286ms (± 1.21%)	287ms (± 0.76%)	~	283ms	289ms	p=0.373 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	85ms (± 9.22%)	89ms (± 6.88%)	~	80ms	99ms	p=0.372 n=6
CompilerTSServer - node (v16.17.1, x64)
Req 1 - updateOpen	2,816ms (± 0.83%)	2,795ms (± 0.28%)	-21ms (- 0.76%)	2,788ms	2,809ms	p=0.020 n=6
Req 2 - geterr	4,657ms (± 0.14%)	4,655ms (± 0.18%)	~	4,644ms	4,666ms	p=1.000 n=6
Req 3 - references	364ms (± 0.58%)	363ms (± 0.29%)	~	361ms	364ms	p=0.160 n=6
Req 4 - navto	281ms (± 0.80%)	282ms (± 0.90%)	~	277ms	284ms	p=0.549 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	76ms (± 0.99%)	75ms (± 1.00%)	~	74ms	76ms	p=0.062 n=6
xstateTSServer - node (v16.17.1, x64)
Req 1 - updateOpen	3,235ms (± 0.36%)	3,258ms (± 0.14%)	+23ms (+ 0.72%)	3,252ms	3,263ms	p=0.005 n=6
Req 2 - geterr	1,754ms (± 1.31%)	1,744ms (± 0.62%)	~	1,731ms	1,756ms	p=0.335 n=6
Req 3 - references	126ms (± 6.91%)	125ms (± 6.11%)	~	121ms	140ms	p=0.188 n=6
Req 4 - navto	352ms (± 0.56%)	353ms (± 0.66%)	~	352ms	358ms	p=0.460 n=6
Req 5 - completionInfo count	2,872 (± 0.00%)	2,872 (± 0.00%)	~	2,872	2,872	p=1.000 n=6
Req 5 - completionInfo	414ms (± 1.65%)	412ms (± 0.80%)	~	408ms	416ms	p=0.873 n=6
Compiler-UnionsTSServer - node (v14.21.3, x64)
Req 1 - updateOpen	2,791ms (± 0.38%)	2,787ms (± 0.65%)	~	2,770ms	2,818ms	p=0.378 n=6
Req 2 - geterr	6,170ms (± 0.48%)	6,169ms (± 0.37%)	~	6,138ms	6,198ms	p=1.000 n=6
Req 3 - references	361ms (± 1.03%)	360ms (± 0.49%)	~	359ms	363ms	p=1.000 n=6
Req 4 - navto	292ms (± 1.34%)	290ms (± 0.26%)	~	289ms	291ms	p=0.103 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	109ms (± 3.73%)	112ms (± 0.36%)	~	111ms	112ms	p=0.214 n=6
CompilerTSServer - node (v14.21.3, x64)
Req 1 - updateOpen	2,942ms (± 0.95%)	2,957ms (± 0.18%)	~	2,951ms	2,966ms	p=0.378 n=6
Req 2 - geterr	4,554ms (± 0.39%)	4,542ms (± 0.58%)	~	4,500ms	4,569ms	p=0.575 n=6
Req 3 - references	376ms (± 0.43%)	376ms (± 0.63%)	~	373ms	378ms	p=0.557 n=6
Req 4 - navto	296ms (± 0.35%)	298ms (± 0.25%)	+2ms (+ 0.51%)	297ms	299ms	p=0.032 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 (± 1.67%)	83ms (± 0.90%)	~	82ms	84ms	p=0.453 n=6
xstateTSServer - node (v14.21.3, x64)
Req 1 - updateOpen	3,452ms (± 0.48%)	3,469ms (± 0.64%)	~	3,433ms	3,491ms	p=0.173 n=6
Req 2 - geterr	1,844ms (± 0.58%)	1,850ms (± 0.72%)	~	1,823ms	1,858ms	p=0.121 n=6
Req 3 - references	153ms (± 6.98%)	154ms (± 5.62%)	~	137ms	160ms	p=1.000 n=6
Req 4 - navto	387ms (± 0.72%)	386ms (± 0.48%)	~	384ms	389ms	p=0.369 n=6
Req 5 - completionInfo count	2,872 (± 0.00%)	2,872 (± 0.00%)	~	2,872	2,872	p=1.000 n=6
Req 5 - completionInfo	436ms (± 1.64%)	438ms (± 1.71%)	~	424ms	446ms	p=0.872 n=6

System

Machine Name	ts-ci-ubuntu
Platform	linux 5.4.0-148-generic
Architecture	x64
Available Memory	16 GB
Available Memory	15 GB
CPUs	4 × Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz

Hosts

• node (v18.10.0, x64)
• node (v16.17.1, x64)
• node (v14.21.3, x64)

Scenarios

• Compiler-UnionsTSServer - node (v18.10.0, x64)
• Compiler-UnionsTSServer - node (v16.17.1, x64)
• Compiler-UnionsTSServer - node (v14.21.3, x64)
• CompilerTSServer - node (v18.10.0, x64)
• CompilerTSServer - node (v16.17.1, x64)
• CompilerTSServer - node (v14.21.3, x64)
• xstateTSServer - node (v18.10.0, x64)
• xstateTSServer - node (v16.17.1, x64)
• xstateTSServer - node (v14.21.3, x64)

Benchmark	Name	Iterations
Current	55011	6
Baseline	main	6

Startup

Comparison Report - main..55011

Metric	main	55011	Delta	Best	Worst	p-value
tsc-startup - node (v16.17.1, x64)
Execution time	142.50ms (± 0.18%)	142.63ms (± 0.21%)	+0.13ms (+ 0.09%)	141.93ms	147.83ms	p=0.000 n=600
tsserver-startup - node (v16.17.1, x64)
Execution time	222.17ms (± 0.21%)	221.76ms (± 0.21%)	-0.41ms (- 0.18%)	220.73ms	229.61ms	p=0.000 n=600
tsserverlibrary-startup - node (v16.17.1, x64)
Execution time	223.94ms (± 0.26%)	223.39ms (± 0.17%)	-0.55ms (- 0.25%)	222.38ms	230.78ms	p=0.000 n=600
typescript-startup - node (v16.17.1, x64)
Execution time	205.67ms (± 0.23%)	205.68ms (± 0.20%)	~	204.51ms	209.77ms	p=0.052 n=600

System

Machine Name	ts-ci-ubuntu
Platform	linux 5.4.0-148-generic
Architecture	x64
Available Memory	16 GB
Available Memory	15 GB
CPUs	4 × 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	55011	6
Baseline	main	6

Developer Information:

Download Benchmark

[jakebailey]

well, that's inconclusive

[jakebailey]

@typescript-bot new perf test this faster

[typescript-bot]

Heya @jakebailey, I've started to run the tsc-only perf test suite on this PR at 030c159. You can monitor the build here.

Update: The results are in!

[typescript-bot]

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

Here they are:

Compiler

Comparison Report - baseline..pr

Metric	baseline	pr	Delta	Best	Worst	p-value
Angular - node (v16.17.1, x64)
Memory used	300,325k (± 0.01%)	300,348k (± 0.01%)	~	300,314k	300,373k	p=0.128 n=6
Parse Time	3.03s (± 0.34%)	3.06s (± 0.13%)	+0.03s (+ 1.05%)	3.05s	3.06s	p=0.003 n=6
Bind Time	0.93s (± 0.00%)	0.93s (± 0.00%)	~	0.93s	0.93s	p=1.000 n=6
Check Time	9.46s (± 0.16%)	9.46s (± 0.19%)	~	9.44s	9.48s	p=0.618 n=6
Emit Time	7.62s (± 0.35%)	7.61s (± 0.29%)	~	7.58s	7.64s	p=0.625 n=6
Total Time	21.04s (± 0.14%)	21.06s (± 0.13%)	~	21.01s	21.08s	p=0.220 n=6
Compiler-Unions - node (v16.17.1, x64)
Memory used	193,825k (± 0.02%)	193,789k (± 0.00%)	-36k (- 0.02%)	193,778k	193,799k	p=0.008 n=6
Parse Time	1.58s (± 0.93%)	1.57s (± 1.25%)	~	1.55s	1.59s	p=1.000 n=6
Bind Time	0.79s (± 0.00%)	0.79s (± 0.00%)	~	0.79s	0.79s	p=1.000 n=6
Check Time	9.89s (± 0.19%)	9.86s (± 0.31%)	-0.04s (- 0.37%)	9.80s	9.88s	p=0.024 n=6
Emit Time	2.74s (± 0.15%)	2.74s (± 0.30%)	~	2.73s	2.75s	p=0.285 n=6
Total Time	15.00s (± 0.20%)	14.97s (± 0.32%)	~	14.87s	15.00s	p=0.227 n=6
Monaco - node (v16.17.1, x64)
Memory used	347,055k (± 0.01%)	347,063k (± 0.00%)	~	347,031k	347,077k	p=0.298 n=6
Parse Time	2.69s (± 0.19%)	2.71s (± 0.39%)	~	2.69s	2.72s	p=0.051 n=6
Bind Time	0.99s (± 0.41%)	0.99s (± 0.52%)	~	0.98s	0.99s	p=0.595 n=6
Check Time	7.89s (± 0.37%)	7.90s (± 0.47%)	~	7.85s	7.95s	p=0.466 n=6
Emit Time	4.25s (± 0.19%)	4.28s (± 0.51%)	+0.03s (+ 0.78%)	4.24s	4.30s	p=0.032 n=6
Total Time	15.82s (± 0.14%)	15.87s (± 0.20%)	+0.05s (+ 0.33%)	15.82s	15.90s	p=0.029 n=6
TFS - node (v16.17.1, x64)
Memory used	301,119k (± 0.00%)	301,138k (± 0.00%)	+18k (+ 0.01%)	301,127k	301,149k	p=0.012 n=6
Parse Time	2.18s (± 0.24%)	2.18s (± 0.45%)	~	2.17s	2.19s	p=0.931 n=6
Bind Time	1.11s (± 0.37%)	1.11s (± 0.76%)	~	1.09s	1.11s	p=0.115 n=6
Check Time	7.23s (± 0.31%)	7.23s (± 0.47%)	~	7.18s	7.28s	p=0.935 n=6
Emit Time	3.99s (± 0.41%)	3.98s (± 0.30%)	~	3.97s	4.00s	p=0.621 n=6
Total Time	14.51s (± 0.13%)	14.50s (± 0.21%)	~	14.46s	14.55s	p=0.459 n=6
material-ui - node (v16.17.1, x64)
Memory used	479,413k (± 0.01%)	479,418k (± 0.01%)	~	479,364k	479,464k	p=0.936 n=6
Parse Time	3.15s (± 0.20%)	3.18s (± 0.26%)	+0.03s (+ 0.85%)	3.17s	3.19s	p=0.004 n=6
Bind Time	0.91s (± 0.00%)	0.91s (± 0.57%)	~	0.90s	0.91s	p=0.174 n=6
Check Time	17.86s (± 0.38%)	17.88s (± 0.54%)	~	17.72s	18.00s	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	21.91s (± 0.33%)	21.96s (± 0.45%)	~	21.80s	22.09s	p=0.261 n=6
xstate - node (v16.17.1, x64)
Memory used	542,802k (± 0.02%)	542,782k (± 0.02%)	~	542,666k	543,016k	p=0.689 n=6
Parse Time	3.70s (± 0.22%)	3.71s (± 0.28%)	+0.02s (+ 0.45%)	3.70s	3.73s	p=0.021 n=6
Bind Time	1.42s (± 4.45%)	1.42s (± 4.36%)	~	1.34s	1.46s	p=0.784 n=6
Check Time	3.22s (± 2.75%)	3.22s (± 2.46%)	~	3.14s	3.32s	p=0.809 n=6
Emit Time	0.08s (± 0.00%)	0.08s (± 0.00%)	~	0.08s	0.08s	p=1.000 n=6
Total Time	8.42s (± 0.39%)	8.43s (± 0.35%)	~	8.38s	8.46s	p=0.572 n=6

System info unknown

Hosts

• node (v16.17.1, x64)

Scenarios

• Angular - node (v16.17.1, x64)
• Compiler-Unions - node (v16.17.1, x64)
• Monaco - node (v16.17.1, x64)
• TFS - node (v16.17.1, x64)
• material-ui - node (v16.17.1, x64)
• xstate - node (v16.17.1, x64)

Benchmark	Name	Iterations
Current	pr	6
Baseline	baseline	6

Developer Information:

Download Benchmarks