[gblargg]

> There it was, something about my desktop profile was introducing at least 3 ms of latency [as compared to creating a fresh account]! From here, I tried a bunch of things: plasma-manager to diff my existing profile against a clean one, removing all virtual desktops and disabling all KWin effects and any display scaling. While randomly closing apps, I found the culprit: the Zed editor. Apparently, an open Zed window can add latency to all my other apps even while idle in the background.

Things like this are so maddening. I don't worry too much about performance on Linux, reserving a Windows machine when I want full hardware acceleration and optimization.

[embedding-shape]

Literally just had something similar (seemingly unrelated things affecting each other) happening on Windows yesterday. Was doing some 3D rendering and playing around in Ableton at the same time, the GPU process somehow crashed, even though GPU utilization was at 50% and most of the VRAM was available, and somehow that process crash also brought down the entire Windows USB subsystem, which left it in some weird state where it couldn't connect to my USB audio interface, even after reconnecting it.

It required a reboot to get USB to work again, after a completely unrelated process using mostly the GPU crashed. I let Codex spend 2-3 hours trying to get to a root cause of it, but zero luck, just "USB subsystem became unresponsive when the process crashed"...

[pocksuppet]

Welcome to Wayland. Every frame is perfect, so if we can't make the frame perfect right now, we'll wait until we can. It constitutes a denial of reality.