search

vincaslt / vscode-highlight-matching-tag

Highlights matching opening or closing tag in VSCode
https://marketplace.visualstudio.com/items?itemName=vincaslt.highlight-matching-tag
MIT License
159 stars 16 forks source link

Editor to become unresponsive when both Highlight Matching Tag and Overtype extensions are enabled #145

Open rbolsius opened 1 year ago

rbolsius commented 1 year ago

Type: Bug

When the Highlight Matching Tag extension is enabled, VS Code becomes unresponsive to keypresses when inserting new text into medium to large XML files (even 2MB is too large for the extension to handle). Some keyboard actions like backspace and delete are still responsive, but typing any new characters results in nothing being inserted.

In the developer tools console there are many messages like the following.

INFO UNRESPONSIVE extension host: starting to profile NOW

Although the console does not name the Highlight Matching Tag extension as the culprit, the "Help: Start Extension Bisect" command reveals this extension to be the cause. When the extension is disabled, text can be inserted into the XML document.

Extension version: 0.11.0 VS Code version: Code 1.77.1 (b7886d7461186a5eac768481578c1d7ca80e2d21, 2023-04-04T23:21:11.906Z) OS version: Windows_NT x64 10.0.19045 Modes: Sandboxed: No

System Info |Item|Value| |---|---| |CPUs|Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz (8 x 2592)| |GPU Status|2d_canvas: enabled
canvas_oop_rasterization: disabled_off
direct_rendering_display_compositor: disabled_off_ok
gpu_compositing: enabled
multiple_raster_threads: enabled_on
opengl: enabled_on
rasterization: enabled
raw_draw: disabled_off_ok
skia_renderer: enabled_on
video_decode: enabled
video_encode: enabled
vulkan: disabled_off
webgl: enabled
webgl2: enabled
webgpu: disabled_off| |Load (avg)|undefined| |Memory (System)|15.83GB (4.92GB free)| |Process Argv|| |Screen Reader|no| |VM|0%|
rbolsius commented 1 year ago

I did a bit more digging and found that this issue appears to be an incompatibility between this extension and the Overtype extension.

When either one of these extensions is enabled by itself, VS code responds immediately to keystrokes to insert characters when editing larger XML files. However, when just these two extensions are enabled, even XML files around 256KB begin to show significant delays when typing.

I can provide sample XML files if needed, but I think any XML file over 1MB in size will be enough to reproduce the delay.

rbolsius commented 1 year ago

Since it is not clear which extension is at fault, I have also created the following issue against the Overtype extension.

https://github.com/DrMerfy/vscode-overtype/issues/38