pure benching

1 files changed, 18 insertions, 0 deletions

diff --git a/site/pure.mjs b/site/pure.mjs
index e43380c..03b5996 100644
--- a/site/pure.mjs
+++ b/site/pure.mjs
@@ -259,6 +259,24 @@ export default async function () {
         }
     };
 
+    const benchButton = document.querySelector('section.bench button');
+    benchButton.onclick = e => {
+        console.debug('bench clicked');
+
+        const iters = Number(document.querySelector('section.bench input').value);
+
+        const start = self.performance.now();
+        for (let i = 0; i < iters; i++) {
+            update(points);
+        }
+        const end = self.performance.now();
+        const delta = end - start;
+        const iters_per_ms = iters / delta;
+
+        const results = document.querySelector('section.bench .results');
+        results.textContent = `${iters} iters in ${delta.toFixed(2)} ms (${iters_per_ms.toFixed(2)} iters per ms)`;
+    }
+
     let interCount = 1;
     function render(t) {
         update(points);