what is UE cooking specific workflow ??

Hello, I’m looking at the Unreal document because I want to make the Unreal Engine build faster, but it doesn’t come out anywhere I search, so I’m asking.

If you use the -iterate option in the cooking section shown in , it says that you will not delete the sandbox and use it as it is.

I want the exact definition of the sandbox that comes out here, and I want the location of the file.

And it is said that it will do iterate cooking, and I want the exact process.

I would appreciate it if you could specify additional options or environments that can be used to speed up build or cook.

and

If you use -iterate, an option used to cook in Unreal engine, it is said that only modified parts are used without rebuilding the sandbox

I want to know exactly what makes the correction and no decision.

In other words, I want to know by what criteria the iterate option is applied.