Possible ways to make compilation faster

[klesun]

Reminder: currently each module compilation takes 10-50 ms of CPU time.

• Research typescript API/source code, there will probably be some tricks to transpile it faster, like disabling logging. If there will be an API to transpile already parsed Node objects separately, that would also improve performance about 2 times: since currently SourceFile is created twice per module - once to parse it for imports, and once to transpile modified version of it.

• Run compilation in separate workers to get use of multiple CPU cores. If machine has 8 CPUs then ideally, compilation should become 8 times faster. b63443b

• Keep compilation results for unchanged files in browser cache... probably should make it configurable. aba27dd

• Minify typescriptServices.js file

• Maybe passing all files to ts.transpile() at once would make compilation faster...

[klesun]

b63443b

Moved transpilation process to workers. Compilation time is now 32% shorter on my machine: 4 CPU cores, 3 workers used.

https://klesun-productions.com/entry/midiana/ load time in ms

• with workers: 2210, 2161, 2241 - Avg: 2204
• without workers: 3224, 3263, 3247 - Avg: 3244.(6)

[klesun]

window.localStorage transpilation result caching - aba27dd

Same page now loads in 791, 854, 771 ms

[klesun]

SWCSWCSWC