telemetry(codewhisperer): "perceived latency" metric #2882

Author: zixlin7

package-lock.json

@@ -3196,7 +3196,7 @@
         "report": "nyc report --reporter=html --reporter=json"
     },
     "devDependencies": {
-        "@aws-toolkits/telemetry": "^1.0.69",
+        "@aws-toolkits/telemetry": "^1.0.70",
         "@cspotcode/source-map-support": "^0.8.1",
         "@sinonjs/fake-timers": "^8.1.0",
         "@types/adm-zip": "^0.4.34",

package.json

@@ -14,7 +14,11 @@ import { RecommendationHandler } from './recommendationHandler'
 import { showTimedMessage } from '../../shared/utilities/messages'
 import { getLogger } from '../../shared/logger/logger'
 import globals from '../../shared/extensionGlobals'
-import { CodewhispererAutomatedTriggerType, CodewhispererTriggerType } from '../../shared/telemetry/telemetry'
+import {
+    telemetry,
+    CodewhispererAutomatedTriggerType,
+    CodewhispererTriggerType,
+} from '../../shared/telemetry/telemetry'
 
 const performance = globalThis.performance ?? require('perf_hooks').performance
 
@@ -401,6 +405,21 @@ export class InlineCompletion {
                     this.setRange(new vscode.Range(editor.selection.active, editor.selection.active))
                     try {
                         await this.showRecommendation(editor)
+                        let languageId = editor?.document?.languageId
+                        languageId =
+                            languageId === CodeWhispererConstants.typescript
+                                ? CodeWhispererConstants.javascript
+                                : languageId
+                        const languageContext = runtimeLanguageContext.getLanguageContext(languageId)
+                        telemetry.codewhisperer_perceivedLatency.emit({
+                            codewhispererRequestId: RecommendationHandler.instance.requestId,
+                            codewhispererSessionId: RecommendationHandler.instance.sessionId,
+                            codewhispererTriggerType: TelemetryHelper.instance.triggerType,
+                            codewhispererCompletionType: TelemetryHelper.instance.completionType,
+                            codewhispererLanguage: languageContext.language,
+                            duration: performance.now() - RecommendationHandler.instance.lastInvocationTime,
+                            passive: true,
+                        })
                     } catch (error) {
                         getLogger().error(`Failed to show suggestion ${error}`)
                         RecommendationHandler.instance.cancelPaginatedRequest()