More dramatic update

Author: gitKrystan

tests/performance/app/routes/update-with-same-state.js

@@ -10,9 +10,9 @@ export default Route.extend({
     const initialPayload = await fetch('./fixtures/add-children-initial.json').then((r) => r.json());
     const initialPayload2 = structuredClone(initialPayload);
 
-    const minusOnePayload = structuredClone(initialPayload);
-    minusOnePayload.data.relationships.children.data.pop();
-    minusOnePayload.included.pop();
+    const payloadWithRemoval = structuredClone(initialPayload);
+    payloadWithRemoval.data.relationships.children.data.splice(0, 19000);
+    payloadWithRemoval.included.splice(0, 19000);
 
     performance.mark('start-push-initial-payload');
     this.store.push(initialPayload);
@@ -31,22 +31,43 @@ export default Route.extend({
     const parent = peekedParents[0];
     const children = await parent.children;
 
+    await logChildren(parent);
+
     performance.mark('start-local-removal');
-    const removedChild = children.pop();
+    console.group('start-local-removal');
+    const removedChildren = children.splice(0, 19000);
+    await logChildren(parent);
+    console.groupEnd();
 
     performance.mark('start-push-minus-one-payload');
-    this.store.push(minusOnePayload);
+    console.group('start-push-minus-one-payload');
+    this.store.push(payloadWithRemoval);
+    await logChildren(parent);
+    console.groupEnd();
 
     performance.mark('start-local-addition');
-    children.push(removedChild);
+    console.group('start-local-addition');
+    parent.children = children.concat(removedChildren);
+    await logChildren(parent);
+    console.groupEnd();
 
     performance.mark('start-push-plus-one-payload');
+    console.group('start-push-plus-one-payload');
     this.store.push(initialPayload2);
+    await logChildren(parent);
+    console.groupEnd();
 
     performance.mark('end-push-plus-one-payload');
   },
 });
 
+async function logChildren(parent) {
+  const children = await parent.children;
+  console.log(
+    `children is an array of length ${children.length} of ids ${children.at(0).id}..${children.at(children.length - 1).id}`
+  );
+}
+
 function iterateChild(record, seen) {
   if (seen.has(record)) {
     return;