Unity Editor Freezing with InvokeRepeating

Unity Engine
, , ,
1

I’m experiencing editor freezing issues when using InvokeRepeating with Sentis model predictions. Interestingly, the freezing only occurs when I use a boolean flag to check the prediction state - removing this flag prevents the freezing.

Code

Here’s my implementation based on the Sentis documentation:

// PredictionModelServer class
public void startPredict()
{
    currentState = PredictionState.Predicting;
    tensor = new Tensor<float>(shape, data.ToArray());
    worker.Schedule(tensor);
    outputTensor = worker.PeekOutput() as Tensor<float>;
    outputTensor.ReadbackRequest();
}

public void PredictResult()
{
    var outputArray = outputTensor.DownloadToArray();
    /* display outputArray[0] */
    outputTensor.Dispose();
    tensor.Dispose();
    currentState = PredictionState.Ready;
}

// In another class - this gets called by InvokeRepeating
public void InvokedFunction() 
{
    if (isPredict) // <-- Causes freezing when this flag is present
    {
        if (ModelServer.Model.IsReady())
        {
            ModelServer.Model.startPredict();
        }
        else if (ModelServer.Model.IsPredicting())
        {
            ModelServer.Model.PredictResult();
        }
    }
}

When isPredict flag is present: Editor freezes
When isPredict flag is removed: Works fine, no freezing

P.S. I’ve tried to use the editor version 2022.3.39, 2022.3.56 and 2023.2.20 and the problem exposed same.

2

When isPredict is false, InvokedFunction() does nothing. Is this the desired behaviour?

Could you debug and identify where the freeze occurs?

3

Yes, When isPredict is false it won’t done anything as desired behaviour.
Now I tried add the Debug before the if-else statement, And the editor seems to be freezed even before the Debug done.
As a code below:

public void InvokedFunction() 
{
    // boolean before start using model.
    Debug.Log($"[SENTIS_LOG] boolean flag is [{willPredict}].");

    if (isPredict) // <-- Causes freezing when this flag is present
    {
            Debug.Log($"[SENTIS_LOG][condition] The function will be call.");
        if (ModelServer.Model.IsReady())
        {
            ModelServer.Model.startPredict();
        }
        else if (ModelServer.Model.IsPredicting())
        {
            ModelServer.Model.PredictResult();
        }
    } else {
            Debug.Log($"[SENTIS_LOG][condition] The function will NOT be call.");
  }
}

And this is the console log appearances:

image
image718×127 13.8 KB

The current inspection is using Editor 2022.3.39f1

4

It looks like a synchronization issue. We would need the full scripts, if possible, to be able to debug on our side.