microsoft / microsoft/vscode-cpptools
When open a cpp file with 300000 lines,cpptools-srv will use huge memories, and make the linux system break
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Description
Issue Type: Bug
1.open a cpp file with 300000 lines
2. check the memory usage in linux system, susytem will crash in few minutes
Extension version: 1.11.0
VS Code version: Code 1.68.1 (30d9c6cd9483b2cc586687151bcbcd635f373630, 2022-06-14T12:48:58.283Z)
OS version: Windows_NT x64 10.0.19043
Restricted Mode: No
Remote OS version: Linux x64 5.3.0-51-generic
System Info
| Item | Value |
|---|---|
| CPUs | Intel(R) Core(TM) i5-10505 CPU @ 3.20GHz (12 x 3192) |
| 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 oop_rasterization: enabled 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 |
| Load (avg) | undefined |
| Memory (System) | 15.75GB (8.07GB free) |
| Process Argv | --crash-reporter-id 24a3dd1a-a7aa-4c0f-a96b-309f359c3e89 |
| Screen Reader | no |
| VM | 0% |
| Item | Value |
|---|---|
| Remote | SSH: 10.50.30.254 |
| OS | Linux x64 5.3.0-51-generic |
| CPUs | Intel(R) Core(TM) i5-10505 CPU @ 3.20GHz (12 x 4355) |
| Memory (System) | 15.39GB (3.37GB free) |
| VM | 0% |
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Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the issue with a 300,000-line C++ file while monitoring cpptools-srv memory on the reported Linux remote environment. Trace the memory growth from that service; done means opening the file no longer consumes enough memory to crash or destabilize the system.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- devtools, performance
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 30/100