Comments (3)
Bisecting isn't an option due to automated swagger -> Zod processing.
Not even using every-ts
?
from typescript.
We make heavy use of Zod and autogenerate these types from upstream Swagger definitions. I strongly suspect this slowdown is related to, ultimately, simply having just too many types. Here's an example of issues we've been having at the same time as this general TS slowdown
So, long story short, I'd really like some insight into the attached tsserver logs or some tips on how to interpret it ourselves. A tip or two on mitigating the slowdowns would be super useful too!
from typescript.
It returns after about 45 seconds
I wasn't able to correlate where in the log this occurred
Notable lines I did see:
Perf 323 [21:55:53.488] 2::updateOpen: elapsed time (in milliseconds) 5954.0864
Perf 1146 [21:56:02.693] 4::updateOpen: elapsed time (in milliseconds) 1280.1678
Perf 1161 [21:56:04.858] 10::encodedSemanticClassifications-full: elapsed time (in milliseconds) 2154.9555
Perf 1168 [21:56:09.939] 13::documentHighlights: elapsed time (in milliseconds) 5078.6349
Perf 1319 [21:56:29.667] 54::encodedSemanticClassifications-full: elapsed time (in milliseconds) 1917.7468
Perf 1393 [21:56:42.308] 78::encodedSemanticClassifications-full: elapsed time (in milliseconds) 1987.7479
Perf 1442 [21:56:53.190] 90::encodedSemanticClassifications-full: elapsed time (in milliseconds) 2137.3590
5-6 seconds of initial updateOpen
is a bit unexpected, but given the project size (1,830 files), not that unusual.
For best performance, it's always best to turn off semantic highlight. IMO the gain in colorization is not worth the perf hit in large contexts. That said, something weird happened here:
Info 1160 [21:56:02.703] request:
{
"seq": 10,
"type": "request",
"command": "encodedSemanticClassifications-full",
"arguments": {
"file": "/Users/penric000/dev/autotrack-fe/apps/web/app/[locale]/a/[slug]/page.tsx",
"start": 5884,
"length": 6698,
"format": "2020"
}
}
Perf 1161 [21:56:04.858] 10::encodedSemanticClassifications-full: elapsed time (in milliseconds) 2154.9555
There's apparently some type in that span which is very, very expensive to compute. That approximate range shows up a few times in the log.
It's possibly also referenced right here:
Info 1167 [21:56:04.861] request:
{
"seq": 13,
"type": "request",
"command": "documentHighlights",
"arguments": {
"file": "/Users/penric000/dev/autotrack-fe/apps/web/app/[locale]/a/[slug]/page.tsx",
"line": 288,
"offset": 67,
"filesToSearch": [
"/Users/penric000/dev/autotrack-fe/apps/web/app/[locale]/a/[slug]/page.tsx"
]
}
}
Perf 1168 [21:56:09.939] 13::documentHighlights: elapsed time (in milliseconds) 5078.6349
from typescript.
Related Issues (20)
- `satisfies` does not work on a variable called `type`
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- false error on generic type alias parameters HOT 5
- Unable to declare an interface that extends `Record<string, nonAnyType>` with additional support functions. HOT 7
- Add support for generic types on a index accessor HOT 2
- `getTextOfJSDocComment` is stripping `#` from JSDoc comment HOT 1
- Enable `allowJs` with `isolatedDeclarations` HOT 1
- JSDoc comment string with the keyword "@private" before import statement in JS file result in cryptic error TS1191 during compilation HOT 2
- `NoInfer` isn't erased and breaks type narrowing HOT 3
- function with overloading incorrectly defines generic variables HOT 3
- TS2590: Expression produces a union type that is too complex to represent, with simple file using Tuples HOT 6
- Debug Failure in transformClassLike in "ghost" after #56955 HOT 1
- no error when re-exporting wildcard import from module and redefining a name from it HOT 1
- TypeScript Error only on big type only when assigned to a variable HOT 3
- Allow explicit declaration of an object property to be omitted when the property is typed as `undefined` HOT 5
- generic parameter is not narrowed down correctly in extends clause when using keyof operator HOT 4
- OOM typescript, mac m1+. HOT 1
- [NewErrors] 5.5.0-dev.20240421 vs 5.4.5 HOT 63
- [ServerErrors][TypeScript] 5.5.0-dev.20240421 HOT 14
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from typescript.