Photon Handler Dispatch Incoming Commands HIGH CPU USAGE

aidangig · May 2018

I have a serious issue with photon. After running the profiler I can see that Dispatch Incoming Commands is at 90%+ and makes my game unplayable. Why is this happening? Please help me.
I can't play my game with anyone after somebody joins besides me I lag brutally.

[Deleted User] · May 2018

Hi @aidangig,

How many networked objects (e.g. PhotonViews) do you have in the scene? If you have too much objects, this might have a bad influence in terms of performance. Another thing is about the errors logged to the console. Is the CPU usage the same when fixing the issues. Logging errors to the console is somehow expensive in terms of performance.

aidangig · May 2018

I have just the players connected as the photon views in the scene. Nothing else. That is why I am so confused.

aidangig · May 2018

Christian_Simon said:
Hi @aidangig,

How many networked objects (e.g. PhotonViews) do you have in the scene? If you have too much objects, this might have a bad influence in terms of performance. Another thing is about the errors logged to the console. Is the CPU usage the same when fixing the issues. Logging errors to the console is somehow expensive in terms of performance.

Do you have any other advice for me?

[Deleted User] · May 2018

What about those errors logged to the console? Have you tried to get rid of them?

JohnTube · May 2018

Hi @aidangig,

Thank you for choosing Photon!

Try running and profiling PUN demos to see the difference.

aidangig · June 2018

Hey Everyone!

Thanks for the support. There is another issue that could be the reason why the Dispatch Incoming Commands is causing so much usage when another player joins.

The findobjectsoftype is called in a particular script. You can find the script in the link I shared. Please open the link and give me some insight.

Here is my question on the Unity answers - https://answers.unity.com/questions/1512637/unity-findobjectsoftype-ruining-my-performance.html

aidangig · June 2018

Never mind. I solved it. It was Photon Network code. I fixed it though in the end.

JohnTube · June 2018

Hi @aidangig,

Thank you for choosing Photon!

Care to share how you solved this and how you modified PUN's code?
Maybe we can benefit from this and include it in a next update so you won't have to go through any inconvenience when updating PUN.

Brodyaga · January 2019

I have the same problems, is there a solution?

JohnTube · January 2019

Hi @Brodyaga,

Thank you for choosing Photon!

I guess you use PUN 1 or PUN Classic.
The problem is due to Unity's FindObjectsOfType.
Could you switch to PUN2? It may have reduced or removed usage of FindObjectsOfType.

Or we could ask @aidangig how he managed to improve the performance here.

Tobias · January 2019

Out of my head, I don't know if you can work around this without PUN modification.
If so, it's on this page: "Optimization Tips"
https://doc.photonengine.com/en-us/pun/current/gameplay/optimization

Brodyaga · January 2019

@JohnTube, I would gladly switch to PUN 2, but there is no declared support for Playmaker.

Tobias · January 2019

Did you have a look at the optimization page? Using PhotonNetwork.SendMonoMessageTargets should really help. It's also an option to create a MonoBheaviour subtype for the components that should get callbacks (versus all the scripts that should not). Then set PhotonNetwork.SendMonoMessageTargetType.

I think Playmaker support for PUN 2 is coming up.

Photon Handler Dispatch Incoming Commands HIGH CPU USAGE

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