Does scheduling multiple jobs in OnUpdate, maintains execution order?

Unity Engine
,
1

Does scheduling multiple chained jobs in OnUpdate, maintains execution order?

So for example I have

protected override JobHandle OnUpdate ( JobHandle inputDeps )
        {        
  var job1 = new Job1 {
  // ... some job2 data
  }.Schedule (inputDeps) ;

  var job2 = new Job2 {
  // .. some job2 data
  }.Schedule (job1) ;

  return job2 ;
}

My both jobs are simple IJob in this case.
Will Job1 be executed before Job2, or this is not guaranteed?

2

That’s the whole point of passing the handle from job1 to job2.

If you did something like this

protected override JobHandle OnUpdate ( JobHandle inputDeps )
        {      
  var job1 = default(Job1).Schedule (inputDeps);
  var job2 = default(Job2).Schedule (inputDeps);
  return JobHandle.CombineDependencies(job1, job2);
}

Then they’d run simultaneously.

1 Like
3

Thanks.
Just simply could find a way, to confirm this, by testing.