Question Instantiate.Copy in profiler

Hello, I have issues understanding in profiler Instantiate.copy. What does it mean and is there a way to optimise it?

 

Hi @IntarsC !

Instantiate.Copy is a part of UnityEngine.Object.Instantiate call. The copy part of the cloning process is where all fields are being copied to a new object. It may be slow if the original object contains large data.

I would check:

• if there are other child samples in profiler
• how heavy is the original object?
• is it possible to share some data?

 

Thank you for reply, what exact child samples do you mean (some additional functions like ondeserealize/onserialize)? and what sharing data would be as example (referencing same scriptable objects or objects inside prefab)?

Also would appreciate explanation about Instantiate.produce.

 

yes - if you see any other expensive calls inside the Copy

yes, exactly - e.g. if you clone a GameObject and one of components has an array with some data - that array copy would contribute to the copy costs. In that case if this array can be a shared data it would be best to move it to a scriptable object and then reference the object in the script

Produce 

replicates original object including all child objects and their components.

Object.Instantiate in a nutshell does the following:

• Creates a gameobjects/components hierarchy same as original object - Instantiate.Produce.
• Copies all fields of all objects from the original objects - Instantiate.Copy.
• Calls Awake on all scripts of new objects - Instantiate.Awake.