---
url: /reference/Interface.ChunkOptimizationOptions.md
---
# Interface: ChunkOptimizationOptions

## Properties

### avoidRedundantChunkLoads?

* **Type**: `boolean`
* **Optional**

Avoid emitting redundant chunk loads for dynamic entries.

This pass can reduce dynamic-entry dependent chunks when the shared modules
are guaranteed to be loaded by every importer of that dynamic entry.

#### Default

```ts
true
```

***

### mergeCommonChunks?

* **Type**: `boolean`
* **Optional**

Merge common chunks into existing entry chunks when it is safe.

This can reduce the number of emitted chunks by moving shared/common modules
into an entry chunk that already depends on them. Rolldown only applies the
merge when it does not create a circular chunk dependency or change strict
entry export signatures. This pass also covers safe empty-facade cleanup.

#### Default

```ts
true
```