Vim: CPU ran into 200%+ in VSCode 1.18.0

[gonghao]

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Is this a BUG REPORT or FEATURE REQUEST? (choose one): BUG REPORT

Environment:

• VSCode Version: 1.18.0
• VsCodeVim Version: 0.10.2
• OS: macOS 10.13.2 Beta (17C67b)

What happened:

When I upgrade to VSCode 1.18.0 the CPU ran into extreme high, I found it caused by two Code Helper.app processes. Then I just disabled all extensions, everything is OK. It is clear that this issues is caused by extensions conflicts with VSCode, so I re-enabled each extension to figure out which one caused this situation. Finally I found it is VSCodeVim, I just re-enabled every other extensions everything is OK, but after re-enable VSCodeVim, the CPU went high.

So I don't know do you guys have the same issue?

What did you expect to happen:

Normal CPU usage.

How to reproduce it:

• Install VSCode 1.18.0
• Install VSCodeVim and enabled it

[francescarpi]

On Windows 10, the same happens.

[ivanvoznyakovsky]

Same on High Sierra 10.13. Opening a file creates 2 CodeHelper processes with 100%+ CPU usage.

[MythicalFish]

Yep. Same on High Sierra, also on VSCode Insiders

[stevestmartin]

Same occurs on macOS 10.12.6

[colbell]

I've got the same problem on Ubuntu 17.10.

I disabled "Easy motion", I.E added "vim.easymotion": false, to the user settings file, restarted VS Code and opened a Ruby source file. Once the "indexing ruby source" finishes the CPU dropped away.

So it looks like an issue with "Easy Motion".

Ignore the above. It hasn't fixed it. The CPU stays down until you start moving the cursor around in the source file, once you do that the CPU rises again and stays up.

Last Attempt

I open the User settings and quit VS Code. Then start it up again, open my Ruby source file and start editing, everything is fine, CPU is low. Play around for a while, quit and restart. Now the problem starts again.

It seems that if VS Code has a source file active when it starts up then the problem occurs but if you start it up with the user settings as the active pane and then open a source file you are ok.

Can anybody else confirm this behaviour or am I going slightly crazy- its been a long day.

[stevestmartin]

@colbell confirmed, if I open it with any source file active even a blank one CPU usage spikes, if i open the user settings tab and relaunch CPU is low. I can consistently reproduce this, switching to a source code tab after launch, or having source code tabs open (regardless of tab order) at launch CPU still remains low, it seems this occurs only when a source code based tab has focus on launch.

[ivanvoznyakovsky]

I have my CPU going crazy whenever a file is focused or vscode is re-open with a prev file opened. once I have any file opened CPU usage spikes.

[adamwiggall]

Same for me on Sierra 10.12.6, running VS code 1.18.0.

[jondot]

Have the same thing. Arrived at Vim extension by elimination of extensions. Profiled the extension and got this:

Which hints at my customising the status bar colors. Removed my config and everything is normal again!

[stevestmartin]

Disabling custom status bar colors corrected the problem for me also.

[gonghao]

@jondot Great job! I just disabled the customize status bar colors, everything goes well!

[colbell]

Nice one @jondot disabling the colours fixed it for me too.

[ivanvoznyakovsky]

confirm that "vim.statusBarColorControl": false fixes the issue. great catch @jondot 👍
don't think it's a real fix but rather a workaround 😄

[chasestarr]

I can reproduce consistently on Version 1.18.

Just tested in Version 1.19.0-insider 11-11-17 on MacOS Sierra 10.12.5 and _cannot_ reproduce CPU spike.

@MythicalFish can you still repro? I can't find a PR relevant to this issue landing in vscode from the past few days - which I find strange https://github.com/Microsoft/vscode/pulls?utf8=%E2%9C%93&q=is%3Apr%20is%3Aclosed%20closed%3A%3E2017-11-07

[samumist]

same for me on macOS 10.11.6 and vscode 1.18.

[newro]

I am experiencing a phenomenon that the CPU becomes higher after vscode 1.18 update in the Win10 environment.
The code helper process is using a high CPU, and disabling the vim plugin disables the symptom.

[sc0ttwad3]

It was the vim extension causing the 100% CPU usage issue for me also. Removing any/all "neovim" related settings took care of the problem. Just changing some to a 'disabled' value or just commenting out did not work. I had to totally remove then entries.

[Chillee]

Does anybody still get this issue on recent versions of VSCodeVim?

[bas0]

I still experienced this issue in 1.21.1 and for me it was fixed by commenting out the "vim.disableAnnoyingNeovimMessage" setting.

[jpoon]

@stevebasford that setting is deprecated, it was removed awhile ago. Closing this issue as it seems resolved.

[ChasKane]

I was brought here by the below link (about 2/3 of the way down the page, in the emulated-plugins section), thinking I couldn't use vim-airline with VSCodeVim. It seems this no longer affecting vim-airline, yes? Might be best to remove the disclaimer at the top of the emulated-plugins section

https://marketplace.visualstudio.com/items?itemName=vscodevim.vim#-emulated-plugins

[xelaos]

From my experience it depends on the machine you are using. Maybe it was worse in 2017 regardless of your machine, but it is still an issue.

[andyearnshaw]

I'd recommend sticking a 👍 on https://github.com/microsoft/vscode/issues/43226 if you want to be able to enable statusbar colours without performance issues.