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Extreme lag in editor ui in 2018.3.0b7

Discussion in '2018.3 Beta' started by pointcache, Oct 27, 2018.

  1. pointcache

    pointcache

    Joined:
    Sep 22, 2012
    Posts:
    531
    Delete this thread moved to hdrp section
     

    Attached Files:

    Last edited: Oct 27, 2018
  2. Fuzzy

    Fuzzy

    Joined:
    Feb 11, 2011
    Posts:
    266
    I noticed something similar. For me it's not that bad in the editor menus, but when I click and drag the mouse in the Game view my FPS drops drasically.
    My gif is just a standard unity scene, no SRP project and stock unity utility FPS counter UI in this example:


    Noticed this when i had a mobile Joystick UI and the game slowed down extremely whenever I moved it. At first I was shocked but it seemed it only happened in the editor.

    I have a very similar, if not the same PC setup:
    Win 10 Pro (Version 1803) x64
    I7-4790K
    GTX 980 (non ti)
     
  3. 5argon

    5argon

    Joined:
    Jun 10, 2013
    Posts:
    1,321
    Hey, this is exactly like my case I found at the beginning of this year. It is not from the recent version.
    And also when I swap from G402 mouse to a no name mouse the lag is gone.

    https://fogbugz.unity3d.com/default.asp?979190_ge68tpo5pv8m7sq4
     
  4. Fuzzy

    Fuzzy

    Joined:
    Feb 11, 2011
    Posts:
    266
    Oh, that's interesting, I actually replaced my mouse a few weeks ago.
    The model I'm using is a: Roccat Kone pure optical owl-eye

    And thanks to your info I think I just found the culprit!
    It seems to be the mouse polling rate, I can switch it in the settings for the mouse, DPI does NOT matter.

    At 125Hz and 250Hz the editor kept the FPS at 60 for me.
    But at 500Hz it starts going down to 45-50 FPS
    And at 1000Hz it fell down to 30 FPS again.
     
    Peter77, 5argon and SugoiDev like this.
  5. ashwinFEC

    ashwinFEC

    Joined:
    May 19, 2013
    Posts:
    34
    I also have a laggy editor. When I select a gameobject with a mesh renderer in the hierarchy everything slows down. Can't even scroll the inspector without serious lag. I am using LWRP not sure if that has anything to do with it.
     
    Last edited: Oct 28, 2018
  6. LeonhardP

    LeonhardP

    Unity Technologies

    Joined:
    Jul 4, 2016
    Posts:
    1,720
    Thanks for the reports, we're investigating. Could you please submit bug reports for these issues if you're able to reproduce them consistently?