AABBClearJob...why is it so expensive? What does it do?

[Edit: Never mind, I should have profiled a build. The time was the Editor loop.]

Trying to understand where most frame time is spend, I noticed the HybridRendererSystem spends >5ms in AABBClearJob. What does it do? What can I do to get this time down?


Edit: Issue vanished when profiling a build.

 

Same Issue,even when there is NO renderer at all

 

This job is very heavy in the editor because safety checks are on. In our project we have disabled safety checks specifically for this job so it's fast in the editor as well.

 

Is Safety Check On or Off affect build player performance

 

AFAIK safety checks are always off in builds, so this only affects the editor. You can toggle the safety checks for the editor on and off in the Jobs menu.

 

Even Off in dev build?

 

Yes it's always off in builds.

If you want to specifically disable safety checks for a job you can add [BurstCompile(DisableSafetyChecks = true)] above it's job struct. We do it very sparsely because they are there for a reason.