vscode: High CPU usage when using multiple open editors (js/ts)

• VSCode Version: 1.22.1
• OS Version: OSX 10.11.6

Steps to Reproduce:

1. Have multiple javascript/typescript projects open in multiple windows (I might have up to 6-7 open at a time), but this happens with 2 as well.
2. Get very high CPU usage from “Code Helper”, switch between all the open VSCode windows and it stops, until the next time it happens.

Notes:

• Landing on “the right” VSCode window always stops the problem. I think it’s pretty random, any window could cause the problem. But bringing focus to it stops the problem.

• I have typescript watchers, webpack watchers, nodemon, stuff like that, running in the background, watching the same files the various vscode windows have open as well. I also have "files.autoSave": "onFocusChange", in the settings.

• After every version upgrade, I get the update notification a lot of times, in different instances of vscode, unexpectedly. For example I open a project and get the notification and dismiss it, a few days later I get it again and notice in the mac dock, there are two vscode icons instead of one (so 2 version running in parallel). Don’t know if it’s related, but here’s a screenshot of how it looks right now (2 instances, one without icon):

I found that one of the processes is launched from ~/Library/Caches/com.microsoft.VSCode.ShipIt/update.reIUiIT/Visual Studio Code.app/Contents/MacOS/Electron.