VSCode spawns too many dsc processes randomly (usually on new instance startup) - causes High CPU/Memory and sometimes system crash

[bokjo]

Issue Type: Performance Issue

VSCode spawns too many dsc processes randomly (usually on new instance startup) My Macbook Pro goes to 100% fan speed and +95 degrees CPU until it crashes or runs out of system memory (not always)

If I manage to close VSCode quickly it goes away after a while

I don't know what this dsc process is [parent process: Code Helper (Renderer)] There are a lot of Python processes as well.

I suspect it is some extension, tried with disabling all extensions and reloading the window, and seems to help on startup... after reenabling the extensions the fans quickly go to 100% again but don't know how to test which extension it is

Suspect on Java Extension Pack and Language Support for Java(TM) by Red Hat which are the latest ones I installed

I usually have 3-4 instances of VSCode open, the issue happens usually by the end of the workday after the instances were open a while and I open/close new ones.

VS Code version: Code 1.55.0 (c185983a683d14c396952dd432459097bc7f757f, 2021-03-30T16:01:05.981Z) OS version: Darwin x64 20.3.0

System Info

|Item|Value| |---|---| |CPUs|Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz (12 x 2200)| |GPU Status|2d_canvas: enabled
gpu_compositing: enabled
metal: disabled_off
multiple_raster_threads: enabled_on
oop_rasterization: enabled
opengl: enabled_on
protected_video_decode: unavailable_off
rasterization: enabled
skia_renderer: disabled_off_ok
video_decode: enabled
webgl: enabled
webgl2: enabled| |Load (avg)|6, 6, 32| |Memory (System)|16.00GB (4.24GB free)| |Process Argv|--crash-reporter-id 78df903b-f939-4bb4-a641-bdc335175a99| |Screen Reader|no| |VM|0%|

Process Info

``` CPU % Mem MB PID Process 27 131 78309 code main 6 82 78312 gpu-process 0 33 78314 utility 22 164 78841 shared-process 0 33 78843 ptyHost 0 16 78951 /bin/zsh -l 0 0 80614 /bin/ps -ax -o pid=,ppid=,pcpu=,pmem=,command= 18 279 80364 window (index.ts — propeller-api-services) 1 377 80368 extensionHost 0 115 80379 electron_node tsserver.js 0 213 80380 electron_node tsserver.js 0 82 80425 electron_node typingsInstaller.js typesMap.js 0 66 80385 electron_node server.js 0 213 80413 electron_node server.js 0 82 80419 electron_node server.js 0 49 80440 electron_node server.js 0 246 80534 electron_node eslintServer.js 0 33 80538 electron_node ssmServer.js 0 33 80591 electron_node aslServer.js 0 49 80593 /Applications/Visual Studio Code.app/Contents/Frameworks/Code Helper (Renderer).app/Contents/MacOS/Code Helper (Renderer) /Applications/Visual Studio Code.app/Contents/Resources/app/extensions/json-language-features/server/dist/node/jsonServerMain --node-ipc --clientProcessId=80368 0 33 80598 electron_node server.js 0 33 80369 watcherService 0 33 80370 searchService 28 49 80612 window (Issue Reporter) ```

Workspace Info

``` | Window (index.ts — propeller-api-services) | Folder (propeller-api-services): 16 files | File types: json(4) yaml(2) ts(2) env(1) gitignore(1) nvmrc(1) | prettierrc(1) md(1) | Conf files: package.json(1) tsconfig.json(1); ```

Extensions (67)

Extension|Author (truncated)|Version ---|---|--- better-comments|aar|2.1.0 vscode-css-formatter|aes|1.0.1 aws-toolkit-vscode|ama|1.22.0 jest-snippets|and|1.8.0 vscode-apollo|apo|1.18.2 path-intellisense|chr|2.3.0 gitignore|cod|0.6.0 bracket-pair-colorizer|Coe|1.0.61 vscode-markdownlint|Dav|0.40.1 vscode-eslint|dba|2.1.19 vscode-dash|dee|2.4.0 githistory|don|0.6.16 gitlens|eam|11.3.0 EditorConfig|Edi|0.16.4 LogFileHighlighter|emi|2.11.0 vscode-great-icons|emm|2.1.73 prettier-vscode|esb|6.3.2 vscode-todo-plus|fab|4.18.3 vscode-jest-runner|fir|0.4.31 vscode-pull-request-github|Git|0.25.0 go|gol|0.23.3 cloudcode|goo|1.10.0 vscode-graphql|Gra|0.3.15 terraform|has|2.9.1 jsonnet|hep|0.1.0 output-colorizer|IBM|0.1.2 coldfusion|ili|1.0.1 cypher-query-language|jak|1.0.2 golang-tdd|joa|0.0.9 rainbow-csv|mec|1.8.1 dotenv|mik|1.0.1 file-downloader|min|1.0.10 mindaro|min|1.0.120210401 vscode-docker|ms-|1.11.0 kind-vscode|ms-|0.0.3 vscode-aks-tools|ms-|0.0.8 vscode-kubernetes-tools|ms-|1.3.0 python|ms-|2021.3.680753044 jupyter|ms-|2021.5.702919634 remote-containers|ms-|0.166.0 azure-account|ms-|0.9.8 debugger-for-chrome|msj|4.12.12 color-highlight|nau|2.3.0 vscode-jest|Ort|3.2.0 material-icon-theme|PKi|4.6.0 prisma|Pri|2.20.1 fabric8-analytics|red|0.3.2 java|red|0.76.0 vscode-commons|red|0.0.4 vscode-yaml|red|0.17.0 LiveServer|rit|5.6.1 ksql|rmo|0.1.4 rust|rus|0.7.8 code-settings-sync|Sha|3.4.3 mdx|sil|0.1.0 code-spell-checker|str|1.10.2 vsfire|tob|1.4.1 vscodeintellicode|Vis|1.2.12 vscode-java-debug|vsc|0.32.1 vscode-java-dependency|vsc|0.18.2 vscode-java-pack|vsc|0.13.0 vscode-java-test|vsc|0.28.1 vscode-maven|vsc|0.28.0 vscode-todo-highlight|way|1.0.4 vscode-import-cost|wix|2.15.0 markdown-all-in-one|yzh|3.4.0 vscode-proto3|zxh|0.5.3

A/B Experiments

``` vsliv368cf:30146710 vsreu685:30147344 python383:30185418 pythonvspyt678:30270856 vspor879:30202332 vspor708:30202333 vspor363:30204092 vstry914:30276682 pythonvsdeb440:30248342 pythonvsded773:30248341 pythonvspyt875:30259475 pythonvspyt639:30281910 pythontb:30283811 openwsldoc:30282072 vspre833:30267464 pythonptprofiler:30281270 vshan820:30276952 pythondataviewer:30285071 ```

[connor4312]

/extJava