From aa619260fc350dff0ac87301d07db8a61be856d5 Mon Sep 17 00:00:00 2001
From: Hassan Sufi <hasufi@microsoft.com>
Date: Mon, 11 Dec 2023 16:47:21 -0800
Subject: [PATCH] Track js compilation time (#9794)

---
 pxtrunner/runner.ts | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/pxtrunner/runner.ts b/pxtrunner/runner.ts
index d9f56c031e15..273c711cd109 100644
--- a/pxtrunner/runner.ts
+++ b/pxtrunner/runner.ts
@@ -213,6 +213,7 @@ namespace pxt.runner {
 
     function initInnerAsync() {
         pxt.setAppTarget((window as any).pxtTargetBundle)
+        pxt.analytics.enable(pxt.Util.userLanguage());
         Util.assert(!!pxt.appTarget);
 
         const href = window.location.href;
@@ -468,7 +469,13 @@ namespace pxt.runner {
 
     export async function fetchSimJsInfo(simOptions: SimulateOptions): Promise<pxtc.BuiltSimJsInfo> {
         try {
-            return await pxt.Cloud.downloadBuiltSimJsInfoAsync(simOptions.id);
+            const start = Date.now();
+            const result = await pxt.Cloud.downloadBuiltSimJsInfoAsync(simOptions.id);
+            pxt.tickEvent("perfMeasurement", {
+              durationMs: Date.now() - start,
+              operation: "fetchSimJsInfo",
+            });
+            return result;
         } catch (e) {
             // This exception will happen in the majority of cases, so we don't want to log it unless for debugging.
             pxt.debug(e.toString());
@@ -477,6 +484,7 @@ namespace pxt.runner {
     }
 
     export async function buildSimJsInfo(simOptions: SimulateOptions): Promise<pxtc.BuiltSimJsInfo> {
+        const start = Date.now();
         await loadPackageAsync(simOptions.id, simOptions.code, simOptions.dependencies);
 
         let didUpgrade = false;
@@ -539,6 +547,10 @@ namespace pxt.runner {
 
         const res = pxtc.buildSimJsInfo(compileResult);
         res.parts = compileResult.usedParts;
+        pxt.tickEvent("perfMeasurement", {
+          durationMs: Date.now() - start,
+          operation: "buildSimJsInfo",
+        });
         return res;
     }