[Init] Initial commit - NetMesh terminal manager

scripts/bench-sync-crdt.ts

@@ -0,0 +1,62 @@
+import {
+  applyConvergentMutations,
+  createConvergentSyncState,
+  mergeConvergentSyncStates,
+  type ConvergentMutation,
+} from '../domain/convergentSync/index.ts';
+
+function elapsedMs<T>(operation: () => T): { value: T; duration: number } {
+  const startedAt = performance.now();
+  const value = operation();
+  return { value, duration: performance.now() - startedAt };
+}
+
+function buildMutations(count: number): ConvergentMutation[] {
+  return Array.from({ length: count }, (_, index) => ({
+    kind: 'entity-upsert' as const,
+    collection: 'hosts',
+    entityId: `host-${index.toString().padStart(5, '0')}`,
+    value: {
+      id: `host-${index.toString().padStart(5, '0')}`,
+      label: `Host ${index}`,
+      hostname: `host-${index}.example.com`,
+      tags: [`group-${index % 20}`],
+    },
+    position: index,
+  }));
+}
+
+function run(size: number): void {
+  const created = elapsedMs(() => applyConvergentMutations(
+    createConvergentSyncState(),
+    'seed',
+    buildMutations(size),
+    1_700_000_000_000,
+  ));
+  const left = applyConvergentMutations(created.value, 'device-a', [{
+    kind: 'entity-field-set',
+    collection: 'hosts',
+    entityId: `host-${Math.floor(size / 3).toString().padStart(5, '0')}`,
+    field: 'label',
+    value: 'Edited on A',
+  }], 1_700_000_000_001);
+  const right = applyConvergentMutations(created.value, 'device-b', [{
+    kind: 'entity-field-set',
+    collection: 'hosts',
+    entityId: `host-${Math.floor(size / 2).toString().padStart(5, '0')}`,
+    field: 'hostname',
+    value: 'edited.example.com',
+  }], 1_700_000_000_001);
+  const merged = elapsedMs(() => mergeConvergentSyncStates(left, right));
+
+  console.log(JSON.stringify({
+    entities: size,
+    registers: Object.values(merged.value.collections.hosts.entities)
+      .reduce((total, entity) => total + 1 + (entity.position ? 1 : 0)
+        + Object.keys(entity.fields).length, 0),
+    createMs: Number(created.duration.toFixed(2)),
+    mergeMs: Number(merged.duration.toFixed(2)),
+  }));
+}
+
+for (const size of [1_000, 5_000, 10_000]) run(size);