Laggy keyboard with braces on NFS

[lprent]

I put the Linux beta 2023/2 amd64 on my work laptop (ubuntu 22.04) on friday. Worked fine with the local directory on a c++/17 project - as in I didn't notice the change from SE 27.0.2.0.

Got home on Monday, did the same update on my linux workstation (ubuntu 23.04) connected to same laptop directory via NFS on a local unmanaged desktop switch. The keyboard started lagging crazily while editing code with keystrokes coming out in the wrong order or not appearing at all.

Same project, same settings, the only obvious difference being that NFS connection. Reverting to SE 27.0.2.0 fixed the problem, so it is unlikely to be the hardware.

Seemed to be worst in the template braces and while doing function parameters. But I was also getting it in structured statements like for loops.

[Dennis]

If you look at the status bar icons, did it show background tagging activity?  My guess is the occasional lags were on account of the workspace tag file still being initially rebuilt (and that was slowed down by the NFS condition).

If not background tagging activity, is there any chance you can share a sample source file with us to reproduce this.  You can use the obfuscate-current-file command to obfuscate the code without changing it's basic structure.