Delay in responding to Apple Magic Trackpad full haptic click event

[andrewbranch]

Does this issue occur when all extensions are disabled?: Yes

Version: 1.75.0-insider
Commit: edc432e
Date: 2022-12-16T05:22:34.551Z
Electron: 19.1.8
Chromium: 102.0.5005.167
Node.js: 16.14.2
V8: 10.2.154.15-electron.0
OS: Darwin x64 22.3.0
Sandboxed: Yes

Steps to Reproduce:

This is very strange, and unfortunately I don’t have a mouse on hand to test with. I use an Apple Magic Trackpad, and when I click anywhere in VS Code with a full press that triggers the haptic feedback on the trackpad, the response to that event is noticeably delayed (looks like a couple hundred ms to me). The same delay cannot be seen when interacting with the UI via the keyboard or with tap-to-click on the trackpad. This behavior only occurs in VS Code.

I recorded some video comparing the two kinds of clicks. You can see that tapping is faster throughout, but also that the delay when clicking to move the text insertion cursor seems to be roughly proportional to the distance that the cursor is moving. I should also note that I used the OS to highlight the clicks, as the clicks shown in VS Code’s Screencast Mode are also delayed.

slow.click.mov

I had been thinking that the render performance of VS Code has really been tanking lately, when in reality it’s just not processing my input! You have an opportunity here to improve perceived performance for perhaps all macOS trackpad users by 2x+ 😄

[andrewbranch]

Hi all, I just want to emphasize how bad this problem is, and that it appears to be getting worse. You can now see it taking multiple seconds to move a text selection:

Screen.Recording.2023-02-07.at.12.11.46.PM.mov

VS Code is becoming increasingly painful for me to use at all. But it’s also bizarrely inconsistent—sometimes everything will be perfectly snappy, and then I’ll do something in another window, and after coming back, experience a huge amount of input lag. Is nobody else experiencing similar issues? Are there any logs or traces I can provide to help track the problem down? One quick look suggests that hardware acceleration could be involved: https://stackoverflow.com/questions/40390779/why-does-an-electron-js-app-respond-slow-to-user-inputs. Is there anything I can do to test that? Thank you!

[andrewbranch]

Possibly related to #165016?

[tamuratak]

Another is #148226.

How about disabling minimap?

• https://code.visualstudio.com/docs/getstarted/userinterface#_minimap

Minimap is rendered on a canvas element. So, hardware acceleration could cause issues.

[andrewbranch]

I will give that a shot. Yesterday I switched from Insiders to stable to see if it would repro in stable, and I didn’t have any problems for the rest of the day—but, I had the minimap disabled on stable.

[andrewbranch]

After a few days of experience, I’m pretty sure the minimap is the culprit.

[clouedoc]

Super weird! That's happening to me too on Ventura.
Minimap was already disabled. Updating fixed the issue for me

[deepak1556]

I don't have the hardware to verify this issue, @andrewbranch is this still an issue in latest stable with minimap enabled ?

[andrewbranch]

Since filing this issue, I got a new computer with a different processor architecture and completely stopped using the minimap. I can reenable the minimap for a while and see how it goes, but if it doesn’t repro, that won’t exculpate Intel Macs.

[vscodenpa]

Hey @deepak1556, this issue might need further attention.

@andrewbranch, you can help us out by closing this issue if the problem no longer exists, or adding more information.

[andrewbranch]

I no longer have the hardware to tell if this will repro or not, so closing.