From beb4a6dd9596cfd7860c414aefc0e26887c8f81a Mon Sep 17 00:00:00 2001
From: Camillo Bruni <cbruni@chromium.org>
Date: Thu, 31 Jul 2025 15:38:22 +0200
Subject: [PATCH 1/4] update UI performance.mark

---
 JetStreamDriver.js | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/JetStreamDriver.js b/JetStreamDriver.js
index de06496d..f7e7e791 100644
--- a/JetStreamDriver.js
+++ b/JetStreamDriver.js
@@ -159,7 +159,7 @@ function updateUI() {
         if (isInBrowser)
             requestAnimationFrame(() => setTimeout(resolve, 0));
         else
-            resolve();
+            return resolve();
     });
 }
 
@@ -231,13 +231,12 @@ class Driver {
         } else if (!dumpJSONResults)
             console.log("Starting JetStream3");
 
-        await updateUI();
-
+        performance.mark("update-ui-start");
         const start = performance.now();
         for (const benchmark of this.benchmarks) {
-            benchmark.updateUIBeforeRun();
-
+            await benchmark.updateUIBeforeRun();
             await updateUI();
+            performance.measure("runner update-ui", "update-ui-start");
 
             try {
                 await benchmark.run();
@@ -246,6 +245,7 @@ class Driver {
                 throw e;
             }
 
+            performance.mark("update-ui");
             benchmark.updateUIAfterRun();
 
             if (isInBrowser) {
@@ -258,6 +258,7 @@ class Driver {
                 }
             }
         }
+        performance.measure("runner update-ui", "update-ui-start");
 
         const totalTime = performance.now() - start;
         if (measureTotalTimeAsSubtest) {
@@ -774,6 +775,7 @@ class Benchmark {
         }
         addScript(this.runnerCode);
 
+        performance.mark(this.name);
         this.startTime = performance.now();
 
         if (RAMification)
@@ -794,6 +796,7 @@ class Benchmark {
         const results = await promise;
 
         this.endTime = performance.now();
+        performance.measure(this.name, this.name);
 
         if (RAMification) {
             const memoryFootprint = MemoryFootprint();

From 24e5575c0c18c63aceb291207d686928ba2d1a33 Mon Sep 17 00:00:00 2001
From: Camillo Bruni <cbruni@chromium.org>
Date: Thu, 31 Jul 2025 15:38:58 +0200
Subject: [PATCH 2/4] cleanup

---
 JetStreamDriver.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/JetStreamDriver.js b/JetStreamDriver.js
index f7e7e791..7c70bdcf 100644
--- a/JetStreamDriver.js
+++ b/JetStreamDriver.js
@@ -159,7 +159,7 @@ function updateUI() {
         if (isInBrowser)
             requestAnimationFrame(() => setTimeout(resolve, 0));
         else
-            return resolve();
+            resolve();
     });
 }
 

From 8a4ae0b122bb37a15850c689c42734874e2066fc Mon Sep 17 00:00:00 2001
From: Camillo Bruni <cbruni@chromium.org>
Date: Thu, 31 Jul 2025 16:38:22 +0200
Subject: [PATCH 3/4] add missing performance methods

---
 shell-config.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/shell-config.js b/shell-config.js
index 405ddcd8..3ec8b48a 100644
--- a/shell-config.js
+++ b/shell-config.js
@@ -37,3 +37,6 @@ if (isSpiderMonkey) {
     globalThis.readFile = readRelativeToScript;
     globalThis.arguments = scriptArgs;
 }
+
+performance.mark ??= function(){};
+performance.measure ??= function(){};
\ No newline at end of file

From 4d6e9e8fc999131ac4c3d17a44e252bc9db9527f Mon Sep 17 00:00:00 2001
From: Camillo Bruni <cbruni@chromium.org>
Date: Thu, 31 Jul 2025 16:43:23 +0200
Subject: [PATCH 4/4] shell config

---
 shell-config.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/shell-config.js b/shell-config.js
index 3ec8b48a..4c88186c 100644
--- a/shell-config.js
+++ b/shell-config.js
@@ -38,5 +38,8 @@ if (isSpiderMonkey) {
     globalThis.arguments = scriptArgs;
 }
 
+if (typeof performance == "undefined")
+    performance = {};
+
 performance.mark ??= function(){};
 performance.measure ??= function(){};
\ No newline at end of file