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microsoft
When open a cpp file with 300000 lines,cpptools-srv will use huge memories, and make the linux system break
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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Why do you have a 300000 line file? That may be bigger than what we're able to handle.
How much memory does your machine have? Have you tried adjusting the C_Cpp.intelliSenseMemoryLimit setting?
What is "susystem"? The behavior of your machine when a process requests too much memory is the responsibility of the OS to handle well. Some OS's deal with it better than others, i.e. freezing/crashing versus not. Linux OS's tend to not handle low memory conditions well compared to Windows/Mac.
First,thank for your reply. The big code file was auto generated, it's really a bad solution, but it sure be existed. My machine has more than 10GB memory,and I also tried to adjust the settings like C_Cpp.intelliSenseMemoryLimit, C_Cpp.intelliSense.maxMemory,C_Cpp.maxMemory, but cpptools-srv still use huge memory and make my linux OS break.
Okay, the 1st thing we need to do is to get a repro and identify which system/feature in cpptools is using the memory, then we could potentially disable the feature if memory usage becomes too large. My guess would be the document outline feature, since that has had memory issues in the past.
The largest generated file we've tested with so far is sqlite3, which is around 200k lines.