Intellisense is slow and non-responsive

[Illya776]

Type: Bug

I'm using VScode with an SSH extension to connect to a remote linux C++ project. The intellisense doesn't seem to respond fast or at all.

Extension version: 1.22.11
VS Code version: Code 1.95.1 (65edc4939843c90c34d61f4ce11704f09d3e5cb6, 2024-10-31T05:14:54.222Z)
OS version: Windows_NT x64 10.0.19045
Modes:
Remote OS version: Linux x64 4.15.0-213-generic

System Info

Item	Value
CPUs	Intel(R) Core(TM) i5-10310U CPU @ 1.70GHz (8 x 2208)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: enabled_on 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_graphite: disabled_off video_decode: enabled video_encode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: enabled webnn: disabled_off
Load (avg)	undefined
Memory (System)	15.73GB (4.12GB free)
Process Argv	--crash-reporter-id 430d46d9-380a-4d25-b0ce-d987031f262a
Screen Reader	no
VM	0%

Item	Value
Remote	SSH: 10.7.34.102
OS	Linux x64 4.15.0-213-generic
CPUs	Intel(R) Xeon(R) CPU E5-2699 v4 @ 2.20GHz (6 x 0)
Memory (System)	11.73GB (2.14GB free)
VM	100%

A/B Experiments

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pythontbext0:30879054
cppperfnew:31000557
dsvsc020:30976470
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dvdeprecation:31068756
dwnewjupytercf:31046870
newcmakeconfigv2:31071590
impr_priority:31102340
nativerepl1:31139838
refactort:31108082
pythonrstrctxt:31112756
cf971741:31144450
iacca1:31171482
notype1:31157159
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dwcopilot:31170013
h409b430:31179529

[sean-mcmanus]

@Illya776 We need more info. What does the language status bar show?

With C_Cpp.loggingLevel set to "Debug" is there any logging (in the C/C++ pane) that would seem to indicate what is taking the time? Is it logging that an IntelliSense update is taking a long time or is it logging tag parsing messages, etc.?