[04e] potential listener LEAK detected, having 175 listeners already. MOST frequent listener (1):

[vscodenpa]

Error
at c.create in src/vs/base/common/event.ts:900:15
at r.q [as onDidChange] in src/vs/base/common/event.ts:1095:34
at new v in src/vs/editor/common/model/bracketPairsTextModelPart/bracketPairsImpl.ts:41:38
at new x in src/vs/editor/common/model/textModel.ts:327:39
at $.J in src/vs/editor/common/services/modelService.ts:317:28
at $.createModel in src/vs/editor/common/services/modelService.ts:452:21
at <anonymous> in src/vs/workbench/api/browser/mainThreadDocumentContentProviders.ts:49:33
at async h.u in src/vs/workbench/services/textmodelResolver/common/textModelResolverService.ts:187:18
at async h.r in src/vs/workbench/services/textmodelResolver/common/textModelResolverService.ts:78:4
at async k.acquire in src/vs/base/common/lifecycle.ts:683:19
at async l.createModelReference in src/vs/workbench/services/textmodelResolver/common/textModelResolverService.ts:238:10
at async s.y in src/vs/workbench/api/browser/mainThreadDocuments.ts:254:15
at async s.$tryOpenDocument in src/vs/workbench/api/browser/mainThreadDocuments.ts:234:18

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[jrieken]

Not yet sure if this is too many models opened by extensions or something with this particular listener

[jrieken]

related to #213209

@hediet This is about ILanguageConfigurationService#onDidChange and about having very many models in memory. I believe a simple, low-hanging improvement is have TextModel listen only once. Today, it listen via BracketPairsTextModelPart and TokenizationTextModelPart