- * - `'full'`: Emitted when the pool is dynamic and full.
- * - `'busy'`: Emitted when the pool is busy.
+ * - `'ready'`: Emitted when the number of workers created in the pool has reached the minimum size expected and are ready.
+ * - `'busy'`: Emitted when the number of workers created in the pool has reached the maximum size expected and are executing concurrently their tasks quota.
+ * - `'full'`: Emitted when the pool is dynamic and the number of workers created has reached the maximum size expected.
+ * - `'destroy'`: Emitted when the pool is destroyed.