[wasm] Add bench output log, to the file and to the console (#110669)

This improves diagnostic in our measurement infra
dotnet · Dec 13, 2024 · c95667c · c95667c
1 parent 8fa662c
commit c95667c
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Showing 2 changed files with 30 additions and 5 deletions.
diff --git a/src/mono/sample/wasm/browser-bench/main.js b/src/mono/sample/wasm/browser-bench/main.js
@@ -85,7 +85,7 @@ class MainApp {
             setExclusions(exclusions.join(','));
         }
 
-        const r = await fetch("/bootstrap.flag", {
+        const r = await fetch("/rewrite=bootstrap.flag", {
             method: 'POST',
             body: "ok"
         });
@@ -96,15 +96,19 @@ class MainApp {
             if (resultString.length == 0) break;
             document.getElementById("out").innerHTML += resultString;
             console.log(resultString);
+            await fetch("/log=bench-log.txt", {
+                method: 'POST',
+                body: resultString
+            });
         }
 
         document.getElementById("out").innerHTML += "Finished";
-        const r1 = await fetch("/results.json", {
+        const r1 = await fetch("/rewrite=results.json", {
             method: 'POST',
             body: getFullJsonResults()
         });
         console.log("post request complete, response: ", r1);
-        const r2 = await fetch("/results.html", {
+        const r2 = await fetch("/rewrite=results.html", {
             method: 'POST',
             body: document.getElementById("out").innerHTML
         });

diff --git a/src/mono/sample/wasm/simple-server/Program.cs b/src/mono/sample/wasm/simple-server/Program.cs
@@ -191,11 +191,32 @@ private async void ReceivePostAsync(HttpListenerContext context)
             if (contentType != null && contentType.StartsWith("text/plain") && path.StartsWith("/"))
             {
                 path = path.Substring(1);
+                var split = path.Split('=');
+                string cmd;
+                if (split.Length > 1)
+                {
+                    cmd = split[0];
+                    path = split[1];
+                } else
+                    cmd = "rewrite";
+
                 if (Verbose)
-                    Console.WriteLine($"  writting POST stream to '{path}' file");
+                    Console.WriteLine($"  POST cmd: {cmd} path: '{path}'");
 
                 var content = await new StreamReader(context.Request.InputStream).ReadToEndAsync().ConfigureAwait(false);
-                await File.WriteAllTextAsync(path, content).ConfigureAwait(false);
+
+                switch (cmd) {
+                    case "rewrite":
+                        await File.WriteAllTextAsync(path, content).ConfigureAwait(false);
+                        break;
+                    case "log":
+                        await File.AppendAllTextAsync(path, content + "\n").ConfigureAwait(false); 
+                        Console.WriteLine($"  log: {content}");
+                        break;
+                    default:
+                        Console.WriteLine($"  unknown command: {cmd}");
+                        break;
+                }
             }
             else
                 return;