VS Code Debugger Extremely Slow to Reach First Breakpoint

user_1005607 0
Viewed 9034

I'm using VS Code on Windows 10, to debug both Python and React. The debugger is extremely slow to reach the first breakpoint, for both Python and JS/Chrome. The sequence of actions I'm observing is:

  1. VS Code's program tab lights up immediately

enter image description here

  1. The first breakpoint only gets reached/highlighed 10-60 seconds later. In between it hangs. I try to click anywhere on the screen but the application is frozen.

enter image description here

Extensions installed:

enter image description here

About:

enter image description here

vscode-debugger vscode-settings visual-studio-code
3 Answers
user_10270220

It looks like I found something that speeds it up. If I grab and move the title bar of VS Studio, the breakpoint gets reached and highlighted.

This is a preliminary finding, I'll edit it if I find something else.

enter image description here

user_10056070

Here is how I solved similar issue, just for your reference.

  • Issue: When I try to debug node.js + angular application, the debugger takes very long time when starts node.js server before it reaches to the 1st breakpoint.
  • Reason: VS code scans all the JS files for a source map to typescript files.
  • Solution: In the launch.json configure "outFiles" to point to the JS files that you want to debug as .ts only.

Example:

{
    "type": "node",
    "request": "launch",
    "name": "Node",
    "program": "${workspaceRoot}/server/server.js",
    "cwd": "${workspaceRoot}",
    "runtimeArgs": ["--inspect-brk"],
    "runtimeExecutable": "node",
    "outFiles": [
        "${workspaceFolder}/server/lib/dist/*.js"
    ],
    "skipFiles": [
        "**/node_modules/**"
    ]
},
user_148483230
Related