4.19 & 4.20 Editor & Packaged Games Have Hangs/Hiccups Constantly

[anonymous_user_fbe2d247]

@Waurelius

Hey folks,

I’m a little late to the party here but I just wanted to chime in to say that we are looking at this. Specifically the hitching in Deathreys’s project. I confirm on my machine that it is indeed ‘leaking like a colander’ in 4.20. Based on initial investigation it has something to do with the switch to Manual Vertex Fetch style rendering and subsequent changes to canvas rendering (which the ‘RenderMaterialToRenderTarget’ function uses. I’ll update you guys when we know more about how pervasive the underlying problem is. Thanks for the good data in this thread and your patience.

Would you also want to test our iOs project? I have tried to pin point problem for last two month without results. Basically it’s something with rendering thread. 4.20 introduced lot of optimizations but performance is still worse than with 4.18.