wave4-ijob-single-thread-offload

You can offload serial work by scheduling an IJob from your ISystem.OnUpdate and assigning the resulting handle to state.Dependency. This safely moves order-dependent sequential loops off the main thread without incurring parallel job overhead.

Use a single-thread IJob for small element counts or order-dependent dependency chains. It avoids the overhead of parallel scheduling, providing a safer and more efficient offload for lightweight sequential workloads.

Assigning the scheduled job handle to state.Dependency ensures subsequent ECS systems respect execution order. This maintains safety and prevents sync-point penalties by correctly wiring the dependency chain off the main thread.

Yes, you can run initialization steps off the main thread using IJob in Unity. It is designed for sequential logic like initialization steps and serial dependency chains, moving them safely off the main thread without parallel job complexity.

The main limitation of using IJob for main thread offload is that it is only recommended for small element counts. For larger workloads where parallelism is beneficial, you should prefer alternative parallel job approaches to maximize performance.