`sanitizeRenderedMarkdown` blocks the renderer

[chetanrchetu]

Type: Performance Issue

So when i am using the vs code it is gettin slower the code gets delayed while i am typing

VS Code version: Code 1.86.0 (05047486b6df5eb8d44b2ecd70ea3bdf775fd937, 2024-01-31T10:28:19.990Z) OS version: Windows_NT x64 10.0.22621 Modes:

System Info

|Item|Value| |---|---| |CPUs|Intel(R) Core(TM) i5-1035G1 CPU @ 1.00GHz (8 x 1190)| |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| |Load (avg)|undefined| |Memory (System)|7.77GB (1.08GB free)| |Process Argv|--crash-reporter-id 3e9864da-ab68-48ef-9006-85a7d4bf5c91| |Screen Reader|no| |VM|40%|

Process Info

``` CPU % Mem MB PID Process 0 124 1472 code main 0 100 4384 ptyHost 0 7 2840 conpty-agent 0 86 4372 C:\WINDOWS\System32\WindowsPowerShell\v1.0\powershell.exe 0 78 11568 C:\WINDOWS\System32\WindowsPowerShell\v1.0\powershell.exe 0 7 14952 conpty-agent 0 94 4500 shared-process 0 26 6228 crashpad-handler 0 94 7084 fileWatcher [1] 0 432 9636 window [1] (code.ipynb - space_titanic - Visual Studio Code) 0 37 9996 utility-network-service 0 193 10040 window 0 103 11376 window [2] (Issue Reporter) 0 172 12700 extensionHost [1] 0 245 1240 electron-nodejs (JKRwrFlIV.js ) 0 9 15384 C:\WINDOWS\system32\conhost.exe 0x4 0 299 8320 electron-nodejs (bundle.js ) 0 16 9728 d:\anaconda\envs\machine_learning\python.exe c:\Users\lenovo\.vscode\extensions\ms-toolsai.jupyter-2024.1.0-win32-x64\pythonFiles\vscode_datascience_helpers\kernel_interrupt_daemon.py --ppid 12700 0 11 9408 C:\WINDOWS\system32\conhost.exe 0x4 0 95 10028 "D:\Microsoft VS Code\Code.exe" "d:\Microsoft VS Code\resources\app\extensions\markdown-language-features\server\dist\node\workerMain" --node-ipc --clientProcessId=12700 0 33 17236 d:\anaconda\envs\machine_learning\python.exe c:\Users\lenovo\.vscode\extensions\ms-python.isort-2023.10.1\bundled\tool\lsp_server.py 0 10 9476 C:\WINDOWS\system32\conhost.exe 0x4 0 190 15716 gpu-process ```

Workspace Info

``` | Window (code.ipynb - space_titanic - Visual Studio Code) | Folder (space_titanic): 8 files | File types: csv(3) ipynb(1) txt(1) | Conf files:; ```

Extensions (19)

Extension|Author (truncated)|Version ---|---|--- insert-unicode|bru|0.15.1 doxdocgen|csc|1.4.0 prettier-vscode|esb|10.1.0 code-runner|for|0.12.1 vscode-drawio|hed|1.6.6 better-cpp-syntax|jef|1.17.2 rainbow-csv|mec|3.11.0 vscode-html-format|moh|0.1.6 isort|ms-|2023.10.1 python|ms-|2023.22.1 cmake-tools|ms-|1.16.32 cpptools|ms-|1.19.2 cpptools-extension-pack|ms-|1.3.0 excalidraw-editor|pom|3.7.1 pdf|tom|1.2.2 cmake|twx|0.0.17 vscode-java-debug|vsc|0.56.0 vscode-java-dependency|vsc|0.23.4 vscode-maven|vsc|0.44.0 (2 theme extensions excluded)

A/B Experiments

``` vsliv368:30146709 vspor879:30202332 vspor708:30202333 vspor363:30204092 vscod805cf:30301675 binariesv615:30325510 vsaa593cf:30376535 py29gd2263:30899288 c4g48928:30535728 azure-dev_surveyone:30548225 vscrp:30673768 a9j8j154:30646983 962ge761:30951796 pythongtdpath:30769146 welcomedialogc:30910334 pythonidxpt:30866567 pythonnoceb:30805159 asynctok:30898717 pythontestfixt:30902429 pythonregdiag2:30936856 pyreplss1:30897532 pythonmypyd1:30879173 pythoncet0:30885854 pythontbext0:30879054 dsvsc016:30899300 dsvsc017:30899301 dsvsc018:30899302 dsvsc019b:30953937 3ef8e399:30949928 ```

[rmbennet]

Same issue. I am on M1 Pro MacBook Pro with Mac OS 13 Ventura.

I thought it was my computer, but it's only one year old and it only happens when I'm in VS code. I actually went online to see if I was updated to the latest version. And noting that the latest version just came out and I am running it (it must have updated automatically), the slowness has to be related to the upgrade.

It's quite frustrating. It happens When I am typing in code cells, or markdown cells.

Downgrading to Version: 1.85.2 resolves issue

[jsecrest]

Same issue.

• Windows 11
• Remote development in docker container (image: FROM python:3.12)
• Using jupyter notebook.
• Occurs more often when I've been working for longer.
• Frequently shows something like "46 files to analyze" in the status bar.

pip freeze - incase it's helpful

root@a51a562a6d23# python -m pip freeze accessible-pygments==0.0.4 alabaster==0.7.16 anyio==4.2.0 argon2-cffi==23.1.0 argon2-cffi-bindings==21.2.0 arrow==1.3.0 asttokens==2.4.1 async-lru==2.0.4 attrs==23.2.0 Babel==2.14.0 beautifulsoup4==4.12.3 bleach==6.1.0 bokeh==3.3.4 certifi==2024.2.2 cffi==1.16.0 charset-normalizer==3.3.2 click==8.1.7 comm==0.2.1 contourpy==1.2.0 cycler==0.12.1 debugpy==1.8.0 decorator==5.1.1 defusedxml==0.7.1 docutils==0.20.1 executing==2.0.1 fastjsonschema==2.19.1 fonttools==4.47.2 fqdn==1.5.1 greenlet==3.0.3 idna==3.6 imagesize==1.4.1 importlib-metadata==7.0.1 ipykernel==6.29.0 ipympl==0.9.3 ipython==8.21.0 ipython-genutils==0.2.0 ipywidgets==8.1.1 isoduration==20.11.0 jedi==0.19.1 Jinja2==3.1.3 joblib==1.3.2 json5==0.9.14 jsonpointer==2.4 jsonschema==4.21.1 jsonschema-specifications==2023.12.1 jupyter==1.0.0 jupyter-book==1.0.0 jupyter-cache==1.0.0 jupyter-console==6.6.3 jupyter-events==0.9.0 jupyter-lsp==2.2.2 jupyter_client==8.6.0 jupyter_core==5.7.1 jupyter_server==2.12.5 jupyter_server_terminals==0.5.2 jupyterlab==4.0.12 jupyterlab-widgets==3.0.9 jupyterlab_pygments==0.3.0 jupyterlab_server==2.25.2 kiwisolver==1.4.5 latexcodec==2.0.1 linkify-it-py==2.0.3 markdown-it-py==3.0.0 MarkupSafe==2.1.5 matplotlib==3.8.2 matplotlib-inline==0.1.6 mdit-py-plugins==0.4.0 mdurl==0.1.2 mistune==3.0.2 myst-nb==1.0.0 myst-parser==2.0.0 nbclient==0.9.0 nbconvert==7.14.2 nbformat==5.9.2 nest-asyncio==1.6.0 notebook==7.0.7 notebook_shim==0.2.3 numpy==1.26.3 overrides==7.7.0 packaging==23.2 pandas==2.2.0 pandocfilters==1.5.1 parso==0.8.3 pexpect==4.9.0 pillow==10.2.0 platformdirs==4.2.0 prometheus-client==0.19.0 prompt-toolkit==3.0.43 psutil==5.9.8 ptyprocess==0.7.0 pure-eval==0.2.2 pyarrow==15.0.0 pybtex==0.24.0 pybtex-docutils==1.0.3 pycparser==2.21 pydata-sphinx-theme==0.15.2 Pygments==2.17.2 pyparsing==3.1.1 python-dateutil==2.8.2 python-json-logger==2.0.7 pytz==2024.1 PyYAML==6.0.1 pyzmq==25.1.2 qtconsole==5.5.1 QtPy==2.4.1 referencing==0.33.0 requests==2.31.0 rfc3339-validator==0.1.4 rfc3986-validator==0.1.1 rpds-py==0.17.1 scikit-learn==1.4.0 scipy==1.12.0 seaborn==0.13.2 Send2Trash==1.8.2 setuptools==69.0.3 six==1.16.0 sniffio==1.3.0 snowballstemmer==2.2.0 soupsieve==2.5 Sphinx==7.2.6 sphinx-book-theme==1.1.0 sphinx-comments==0.0.3 sphinx-copybutton==0.5.2 sphinx-jupyterbook-latex==1.0.0 sphinx-multitoc-numbering==0.1.3 sphinx-thebe==0.3.0 sphinx-togglebutton==0.3.2 sphinx_design==0.5.0 sphinx_external_toc==1.0.1 sphinxcontrib-applehelp==1.0.8 sphinxcontrib-bibtex==2.6.2 sphinxcontrib-devhelp==1.0.6 sphinxcontrib-htmlhelp==2.0.5 sphinxcontrib-jsmath==1.0.1 sphinxcontrib-qthelp==1.0.7 sphinxcontrib-serializinghtml==1.1.10 SQLAlchemy==2.0.25 stack-data==0.6.3 tabulate==0.9.0 terminado==0.18.0 threadpoolctl==3.2.0 tinycss2==1.2.1 tornado==6.4 traitlets==5.14.1 types-python-dateutil==2.8.19.20240106 typing_extensions==4.9.0 tzdata==2023.4 uc-micro-py==1.0.2 uri-template==1.3.0 urllib3==2.2.0 wcwidth==0.2.13 webcolors==1.13 webencodings==0.5.1 websocket-client==1.7.0 wheel==0.42.0 widgetsnbextension==4.0.9 xyzservices==2023.10.1 zipp==3.17.0

I've attached a developer tools performance profile

---

Type: Performance Issue

Over the last few days I've been experiencing freezing periodically when typing.

VS Code version: Code 1.86.0 (05047486b6df5eb8d44b2ecd70ea3bdf775fd937, 2024-01-31T10:28:19.990Z) OS version: Windows_NT x64 10.0.22621 Modes: Remote OS version: Linux x64 5.10.102.1-microsoft-standard-WSL2

System Info

|Item|Value| |---|---| |CPUs|11th Gen Intel(R) Core(TM) i7-1185G7 @ 3.00GHz (8 x 2995)| |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| |Load (avg)|undefined| |Memory (System)|15.59GB (2.26GB free)| |Process Argv|--crash-reporter-id bb872725-c55f-42c3-8230-67848914cce6| |Screen Reader|yes| |VM|0%| |Item|Value| |---|---| |Remote|Dev Container: Existing Dockerfile| |OS|Linux x64 5.10.102.1-microsoft-standard-WSL2| |CPUs|11th Gen Intel(R) Core(TM) i7-1185G7 @ 3.00GHz (8 x 2995)| |Memory (System)|7.56GB (4.50GB free)| |VM|0%|

Process Info

``` CPU % Mem MB PID Process 0 184 25616 code main 0 112 4260 window [2] (Issue Reporter) 0 556 4316 window [1] (● 01b-DistributionReview.ipynb - D195-Capstone-ResilienceVsCovid [Dev Container: Existing Dockerfile] - Visual Studio Code) 0 140 5760 window 0 103 14196 shared-process 0 260 15452 gpu-process 0 24 18028 crashpad-handler 0 160 18632 extensionHost [1] 0 22 2432 "C:\Program Files\Docker\Docker\resources\bin\docker.exe" exec -i -u root -e VSCODE_REMOTE_CONTAINERS_SESSION=4512fbc2-3e56-4f76-bd4e-9b22d6a079321707189593970 a51a562a6d2300e743d12be3fd812275da0d8e4db005424f6d2539e6a1ef91da /root/.vscode-server/bin/05047486b6df5eb8d44b2ecd70ea3bdf775fd937/node -e " const net = require('net'); const fs = require('fs'); process.stdin.pause(); const client = net.createConnection({ host: '127.0.0.1', port: 37343 }, () => { console.error('Connection established'); client.pipe(process.stdout); process.stdin.pipe(client); }); client.on('close', function (hadError) { console.error(hadError ? 'Remote close with error' : 'Remote close'); process.exit(hadError ? 1 : 0); }); client.on('error', function (err) { process.stderr.write(err && (err.stack || err.message) || String(err)); }); process.stdin.on('close', function (hadError) { console.error(hadError ? 'Remote stdin close with error' : 'Remote stdin close'); process.exit(hadError ? 1 : 0); }); process.on('uncaughtException', function (err) { fs.writeSync(process.stderr.fd, `Uncaught Exception: ${String(err && (err.stack || err.message) || err)}\n`); }); " 0 6 11768 C:\WINDOWS\system32\conhost.exe 0x4 0 15 14356 "C:\Program Files\Docker\Docker\resources\bin\com.docker.cli.exe" exec -i -u root -e VSCODE_REMOTE_CONTAINERS_SESSION=4512fbc2-3e56-4f76-bd4e-9b22d6a079321707189593970 a51a562a6d2300e743d12be3fd812275da0d8e4db005424f6d2539e6a1ef91da /root/.vscode-server/bin/05047486b6df5eb8d44b2ecd70ea3bdf775fd937/node -e " const net = require('net'); const fs = require('fs'); process.stdin.pause(); const client = net.createConnection({ host: '127.0.0.1', port: 37343 }, () => { console.error('Connection established'); client.pipe(process.stdout); process.stdin.pipe(client); }); client.on('close', function (hadError) { console.error(hadError ? 'Remote close with error' : 'Remote close'); process.exit(hadError ? 1 : 0); }); client.on('error', function (err) { process.stderr.write(err && (err.stack || err.message) || String(err)); }); process.stdin.on('close', function (hadError) { console.error(hadError ? 'Remote stdin close with error' : 'Remote stdin close'); process.exit(hadError ? 1 : 0); }); process.on('uncaughtException', function (err) { fs.writeSync(process.stderr.fd, `Uncaught Exception: ${String(err && (err.stack || err.message) || err)}\n`); }); " 0 22 2856 "C:\Program Files\Docker\Docker\resources\bin\docker.exe" exec -i -u root -e VSCODE_REMOTE_CONTAINERS_SESSION=4512fbc2-3e56-4f76-bd4e-9b22d6a079321707189593970 a51a562a6d2300e743d12be3fd812275da0d8e4db005424f6d2539e6a1ef91da /root/.vscode-server/bin/05047486b6df5eb8d44b2ecd70ea3bdf775fd937/node -e " const net = require('net'); const fs = require('fs'); process.stdin.pause(); const client = net.createConnection({ host: '127.0.0.1', port: 37343 }, () => { console.error('Connection established'); client.pipe(process.stdout); process.stdin.pipe(client); }); client.on('close', function (hadError) { console.error(hadError ? 'Remote close with error' : 'Remote close'); process.exit(hadError ? 1 : 0); }); client.on('error', function (err) { process.stderr.write(err && (err.stack || err.message) || String(err)); }); process.stdin.on('close', function (hadError) { console.error(hadError ? 'Remote stdin close with error' : 'Remote stdin close'); process.exit(hadError ? 1 : 0); }); process.on('uncaughtException', function (err) { fs.writeSync(process.stderr.fd, `Uncaught Exception: ${String(err && (err.stack || err.message) || err)}\n`); }); " 0 6 11668 C:\WINDOWS\system32\conhost.exe 0x4 0 15 14060 "C:\Program Files\Docker\Docker\resources\bin\com.docker.cli.exe" exec -i -u root -e VSCODE_REMOTE_CONTAINERS_SESSION=4512fbc2-3e56-4f76-bd4e-9b22d6a079321707189593970 a51a562a6d2300e743d12be3fd812275da0d8e4db005424f6d2539e6a1ef91da /root/.vscode-server/bin/05047486b6df5eb8d44b2ecd70ea3bdf775fd937/node -e " const net = require('net'); const fs = require('fs'); process.stdin.pause(); const client = net.createConnection({ host: '127.0.0.1', port: 37343 }, () => { console.error('Connection established'); client.pipe(process.stdout); process.stdin.pipe(client); }); client.on('close', function (hadError) { console.error(hadError ? 'Remote close with error' : 'Remote close'); process.exit(hadError ? 1 : 0); }); client.on('error', function (err) { process.stderr.write(err && (err.stack || err.message) || String(err)); }); process.stdin.on('close', function (hadError) { console.error(hadError ? 'Remote stdin close with error' : 'Remote stdin close'); process.exit(hadError ? 1 : 0); }); process.on('uncaughtException', function (err) { fs.writeSync(process.stderr.fd, `Uncaught Exception: ${String(err && (err.stack || err.message) || err)}\n`); }); " 0 22 13856 "C:\Program Files\Docker\Docker\resources\bin\docker.exe" exec -i -u root -e VSCODE_REMOTE_CONTAINERS_SESSION=4512fbc2-3e56-4f76-bd4e-9b22d6a079321707189593970 a51a562a6d2300e743d12be3fd812275da0d8e4db005424f6d2539e6a1ef91da /bin/sh 0 15 14472 "C:\Program Files\Docker\Docker\resources\bin\com.docker.cli.exe" exec -i -u root -e VSCODE_REMOTE_CONTAINERS_SESSION=4512fbc2-3e56-4f76-bd4e-9b22d6a079321707189593970 a51a562a6d2300e743d12be3fd812275da0d8e4db005424f6d2539e6a1ef91da /bin/sh 0 6 28620 C:\WINDOWS\system32\conhost.exe 0x4 0 22 20840 "C:\Program Files\Docker\Docker\resources\bin\docker.exe" exec -i -u root a51a562a6d2300e743d12be3fd812275da0d8e4db005424f6d2539e6a1ef91da /bin/sh 0 6 14308 C:\WINDOWS\system32\conhost.exe 0x4 0 15 27240 "C:\Program Files\Docker\Docker\resources\bin\com.docker.cli.exe" exec -i -u root a51a562a6d2300e743d12be3fd812275da0d8e4db005424f6d2539e6a1ef91da /bin/sh 0 73 26376 "C:\Program Files\Microsoft VS Code\Code.exe" c:\Users\Jason\.vscode\extensions\ms-vscode-remote.remote-containers-0.338.1\dist\shutdown\shutdownMonitorProcess \\.\pipe\vscode-remote-containers-064af131-8f2d-4748-88e2-2335cdba0ffa-sock singleContainer Debug c:\Users\Jason\AppData\Roaming\Code\logs\20240205T201953\window1\exthost\ms-vscode-remote.remote-containers 1707189594640 0 22 29236 "C:\Program Files\Docker\Docker\resources\bin\docker.exe" exec -i -u root a51a562a6d2300e743d12be3fd812275da0d8e4db005424f6d2539e6a1ef91da /bin/sh -c "echo \"New container started. Keep-alive process started.\" ; export VSCODE_REMOTE_CONTAINERS_SESSION=4512fbc2-3e56-4f76-bd4e-9b22d6a079321707189593970 ; /bin/sh" 0 15 4016 "C:\Program Files\Docker\Docker\resources\bin\com.docker.cli.exe" exec -i -u root a51a562a6d2300e743d12be3fd812275da0d8e4db005424f6d2539e6a1ef91da /bin/sh -c "echo \"New container started. Keep-alive process started.\" ; export VSCODE_REMOTE_CONTAINERS_SESSION=4512fbc2-3e56-4f76-bd4e-9b22d6a079321707189593970 ; /bin/sh" 0 6 28116 C:\WINDOWS\system32\conhost.exe 0x4 0 22 30080 "C:\Program Files\Docker\Docker\resources\bin\docker.exe" exec -i -u root -e SHELL=/bin/bash -e VSCODE_AGENT_FOLDER=/root/.vscode-server -w /root/.vscode-server/bin/05047486b6df5eb8d44b2ecd70ea3bdf775fd937 a51a562a6d2300e743d12be3fd812275da0d8e4db005424f6d2539e6a1ef91da /root/.vscode-server/bin/05047486b6df5eb8d44b2ecd70ea3bdf775fd937/bin/code-server --log debug --force-disable-user-env --server-data-dir /root/.vscode-server --use-host-proxy --telemetry-level all --accept-server-license-terms --host 127.0.0.1 --port 0 --connection-token-file /root/.vscode-server/data/Machine/.connection-token-05047486b6df5eb8d44b2ecd70ea3bdf775fd937 --extensions-download-dir /root/.vscode-server/extensionsCache --start-server --disable-websocket-compression --skip-requirements-check 0 6 1784 C:\WINDOWS\system32\conhost.exe 0x4 0 15 17532 "C:\Program Files\Docker\Docker\resources\bin\com.docker.cli.exe" exec -i -u root -e SHELL=/bin/bash -e VSCODE_AGENT_FOLDER=/root/.vscode-server -w /root/.vscode-server/bin/05047486b6df5eb8d44b2ecd70ea3bdf775fd937 a51a562a6d2300e743d12be3fd812275da0d8e4db005424f6d2539e6a1ef91da /root/.vscode-server/bin/05047486b6df5eb8d44b2ecd70ea3bdf775fd937/bin/code-server --log debug --force-disable-user-env --server-data-dir /root/.vscode-server --use-host-proxy --telemetry-level all --accept-server-license-terms --host 127.0.0.1 --port 0 --connection-token-file /root/.vscode-server/data/Machine/.connection-token-05047486b6df5eb8d44b2ecd70ea3bdf775fd937 --extensions-download-dir /root/.vscode-server/extensionsCache --start-server --disable-websocket-compression --skip-requirements-check 0 70 22616 fileWatcher [1] 0 673 23764 window 0 38 24816 utility-network-service 0 101 26536 utility-process Remote: Dev Container: Existing Dockerfile CPU % Mem MB PID Process 0 0 189 remote agent 0 0 258 ptyHost 0 0 290 fileWatcher 0 0 304 extension-host 0 0 400 /usr/local/bin/python /root/.vscode-server/extensions/ms-python.isort-2023.10.1/bundled/tool/lsp_server.py 0 0 411 /vscode/vscode-server/bin/linux-x64/05047486b6df5eb8d44b2ecd70ea3bdf775fd937/node /vscode/vscode-server/bin/linux-x64/05047486b6df5eb8d44b2ecd70ea3bdf775fd937/extensions/json-language-features/server/dist/node/jsonServerMain --node-ipc --clientProcessId=304 0 0 447 /vscode/vscode-server/bin/linux-x64/05047486b6df5eb8d44b2ecd70ea3bdf775fd937/node /root/.vscode-server/extensions/ms-python.vscode-pylance-2023.12.1/dist/server.bundle.js --cancellationReceive=file:d3a4d62109c4b1993c1838e96e07687610b42dfe39 --node-ipc --clientProcessId=304 0 0 991 /vscode/vscode-server/bin/linux-x64/05047486b6df5eb8d44b2ecd70ea3bdf775fd937/node /vscode/vscode-server/bin/linux-x64/05047486b6df5eb8d44b2ecd70ea3bdf775fd937/extensions/markdown-language-features/server/dist/node/workerMain --node-ipc --clientProcessId=304 0 0 36577 electron-nodejs (jwezhQPZz.js ) 0 0 43476 /bin/sh -c /usr/bin/ps -ax -o pid=,ppid=,pcpu=,pmem=,command= 0 0 43477 /usr/bin/ps -ax -o pid=,ppid=,pcpu=,pmem=,command= ```

Workspace Info

``` | Remote: Dev Container: Existing Dockerfile| Folder (D195-Capstone-ResilienceVsCovid): 49 files| File types: csv(10) ipynb(6) md(6) pdf(4) xlsx(3) json(2) html(2) | dockerignore(1) gitattributes(1) gitignore(1) | Conf files: devcontainer.json(1) settings.json(1) dockerfile(1); ```

Extensions (18)

Extension|Author (truncated)|Version ---|---|--- codespaces|Git|1.16.9 jupyter-keymap|ms-|1.1.2 remote-containers|ms-|0.338.1 remote-wsl|ms-|0.86.0 copilot|Git|1.156.0 copilot-chat|Git|0.12.0 latex-workshop|Jam|9.18.0 rainbow-csv|mec|3.11.0 vscode-docker|ms-|1.28.0 debugpy|ms-|2024.0.0 isort|ms-|2023.10.1 python|ms-|2024.0.0 vscode-pylance|ms-|2023.12.1 jupyter|ms-|2024.1.0 jupyter-keymap|ms-|1.1.2 jupyter-renderers|ms-|1.0.17 vscode-jupyter-cell-tags|ms-|0.1.8 vscode-jupyter-slideshow|ms-|0.1.5

A/B Experiments

``` vsliv368:30146709 vspor879:30202332 vspor708:30202333 vspor363:30204092 vstes627:30244334 vscod805cf:30301675 binariesv615:30325510 vsaa593:30376534 py29gd2263:30899288 vscaac:30438847 c4g48928:30535728 azure-dev_surveyone:30548225 a9j8j154:30646983 0bi6i642:30951795 pythongtdpath:30769146 welcomedialog:30910333 pythonidxpt:30866567 pythonnoceb:30805159 asynctok:30898717 pythontestfixt:30902429 pythonregdiag2:30936856 pyreplss1:30897532 pythonmypyd1:30879173 pythoncet0:30885854 pythontbext0:30879054 accentitlementsc:30887149 dsvsc016:30899300 dsvsc017:30899301 dsvsc018:30899302 dsvsc019bcf:30953938 7j2b6412:30949929 ```

EDIT: This is an empty trace file... I followed the instructions at this info gathering page and i did gather a profile showing a 10 second animation/scripting job and a long period of dropped frames. I'm not sure why this file came out empty. If you can give me a good idea of how to export correctly, I'm happy to gather another.

Trace-20240206T004209.json

[jrieken]

/needsMoreInfo

Please use this guide to provide more information: https://github.com/Microsoft/vscode/wiki/Performance-Issues. Thanks.

[vscodenpa]

Thanks for creating this issue! We figured it's missing some basic information or in some other way doesn't follow our issue reporting guidelines. Please take the time to review these and update the issue.

Happy Coding!

[jsecrest]

Seems to be helped by installing the previous version of pylance (2023.11.10)

[ErickPshat]

Same issue here, I work on WSL. I find that this happens for example when I start typing the function like pd.to_datetime(), regardless of whether I am working in a notebook or a .py file. Maybe it has to do with pylance and parameter hints. Downgrading to a previous VS Code version solves the issue. Downgrading to previous version of pylance does not.

[netbrothers-tr]

I can confirm this behaviour on Ubuntu Linux 22 since VS Code version 1.86.0.

[jrieken]

Please use this guide to provide more information: https://github.com/Microsoft/vscode/wiki/Performance-Issues. Thanks.

[RafaelFeiten]

Same issue here using two different computers. One native Linux Mint and other Windows with WSL2. When using the format functionality when saving the file, vscode hangs waiting for it to process, which takes a few seconds. The behavior does not always occur.

[jsecrest]

@jrieken you've referenced the performance gathering instructions a few times. I originally tried to follow them but the trace I downloaded from my recorded profile was empty. What is the correct way to save the profile? The instructions don't say.

[jrieken]

@jsecrest what precisely is the performance problem that you are experiencing. Slow startup? Slow editor features, like slow to complete or slow to show the outline? Slow, unresponsive UI like mouse moves stutter, typing in the editor and/or other input boxes is delayed. Depending on what you experience a different way to diagnose is needed.

To everyone: we believe you but without exact information we cannot help you. So, refrain from "me too" comments, use the 👍-feature, but most importantly include detailed information (scenario, extensions, version, workload etc). It's also likely that same symptoms (slow/sluggish) aren't due to the same cause, so unless you have matching, detailed information file a new issue instead.

[Bakuretso]

@jsecrest what precisely is the performance problem that you are experiencing. Slow startup? Slow editor features, like slow to complete or slow to show the outline? Slow, unresponsive UI like mouse moves stutter, typing in the editor and/or other input boxes is delayed. Depending on what you experience a different way to diagnose is needed.

To everyone: we believe you but without exact information we cannot help you. So, refrain from "me too" comments, use the 👍-feature, but most importantly include detailed information (scenario, extensions, version, workload etc). It's also likely that same symptoms (slow/sluggish) aren't due to the same cause, so unless you have matching, detailed information file a new issue instead.

Working with torch, matplotlib, sklearn in WSL. When you type parameters (for example plt.figure(figsize= ) VS Code freezes for about 3-5 seconds.

My PC spec is pretty decent r9 5950x, 64gb ram, nvme 980 pro for wsl. So, it can't be hardware issues. And there was no problem before I updated python extension to v2024.0.1 about 3 days ago.

[jrieken]

VS Code freezes for about 3-5 seconds.

Describe "freeze" does the cursor stop blinking or does parameter help not update as you type more?

[chetanrchetu]

@jrieken yes even me i am facing the same issue the freeze which @Bakuretso tells , like when i am working with maching learning related code like pandas or matplotlib in general machine learning stuff when the editor recommends the some inbulit function or tells someting about the function the system freezes even when accessing the variable name from the pandas dataframe,but this doesnt occur when i am dealing with flask or html only when i am doing maching learning code , This issue was not there when i was using 1.85 version but during the latest release 1.86 the issue is beinging happening

[jrieken]

@chetanrchetu define "freeze", see https://github.com/microsoft/vscode/issues/204234#issuecomment-1934368095

[chetanrchetu]

@chetanrchetu define "freeze", see #204234 (comment)

@chetanrchetu define "freeze", see #204234 (comment)

Sir its kinda both cursor stops and even the help freezes

[jrieken]

If you can consistently cause the cursor to stop blinking then follow these steps to create CPU profile: https://github.com/Microsoft/vscode/wiki/Performance-Issues#profiling-the-renderer-process

[jsecrest]

I think I better understand what you're asking. I'm a little slammed at the moment but I will try to get you a report with better details either tonight or tomorrow. I will also use the performance tool to generate another profile and if I still can't export it appropriately, I will at least take a few screenshots and detail some of the information.

On Wed, Feb 7, 2024, 12:37 AM Johannes Rieken @.***> wrote:

@jsecrest https://github.com/jsecrest what precisely is the performance problem that you are experiencing. Slow startup? Slow editor features, like slow to complete or slow to show the outline? Slow, unresponsive UI like mouse moves stutter, typing in the editor and/or other input boxes is delayed. Depending on what you experience a different way to diagnose is needed.

To everyone: we believe you but without exact information we cannot help you. So, refrain from "me too" comments, use the 👍-feature, but most importantly include detailed information (scenario, extensions, version, workload etc). It's also likely that same symptoms (slow/sluggish) aren't due to the same cause, so unless you have matching, detailed information file a new issue instead.

— Reply to this email directly, view it on GitHub https://github.com/microsoft/vscode/issues/204234#issuecomment-1931448310, or unsubscribe https://github.com/notifications/unsubscribe-auth/AD423Z5YRHZFUYGQ52DPXFDYSMVNJAVCNFSM6AAAAABCX6VW2GVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMYTSMZRGQ2DQMZRGA . You are receiving this because you were mentioned.Message ID: @.***>

[netbrothers-tr]

After some more tests, I am convinced that - in my case - it has to do with one or more extensions and not with VS Code directly. Extension Bisect unfortunately didn't work for me. I couldn't find the problem with it. But with all extensions disabled - in my case - the problem was gone. Now I will reactivate the extensions one by one to narrow it down and report back.

[jrieken]

Closing due to a lack of actionable information. The OP didn't get back with the requested information which means we cannot investigate/fix. Also bystanders also didn't provide information.

Important I believe that you experiemence bad performance but please don't comment on an unconfirmed issue. Same sympton doesn't mean same cause. Please file separate issues, and please response do instructions for more information. That's the only sustainable way to improve things for you.

[Mond45]

If you can consistently cause the cursor to stop blinking then follow these steps to create CPU profile: https://github.com/Microsoft/vscode/wiki/Performance-Issues#profiling-the-renderer-process

I was unable to save the performance profile. Anyway, here I attached performance profiler screenshot, the issue seems to be related to markdown sanitization for the parameter hint.

[jrieken]

@Mond45 Thanks a ton. The save-btn is that arrow-up icon (see below). Really hungry for the full profile now. Also wonder what UI element shows when you are seeing this? Does this happen as you type? Is this suggest with details or signature help NVM, the profile shows it's signature help... Does this happen when call a specific function, maybe from a library? What language does this happen with?

[Mond45]

@jsecrest what precisely is the performance problem that you are experiencing. Slow startup? Slow editor features, like slow to complete or slow to show the outline? Slow, unresponsive UI like mouse moves stutter, typing in the editor and/or other input boxes is delayed. Depending on what you experience a different way to diagnose is needed. To everyone: we believe you but without exact information we cannot help you. So, refrain from "me too" comments, use the 👍-feature, but most importantly include detailed information (scenario, extensions, version, workload etc). It's also likely that same symptoms (slow/sluggish) aren't due to the same cause, so unless you have matching, detailed information file a new issue instead.

Working with torch, matplotlib, sklearn in WSL. When you type parameters (for example plt.figure(figsize= ) VS Code freezes for about 3-5 seconds.

My PC spec is pretty decent r9 5950x, 64gb ram, nvme 980 pro for wsl. So, it can't be hardware issues. And there was no problem before I updated python extension to v2024.0.1 about 3 days ago.

It's the same as mentioned here, I'm using Python. The freezes happen when I'm using matplotlib, and sklearn. Can't seem to save the profile.

[jrieken]

@deepak1556 Can you please follow-up on not being able to save profiles, see https://github.com/microsoft/vscode/issues/204234#issuecomment-1952899878

[jrieken]

It's the same as mentioned here, I'm using Python. The freezes happen when I'm using matplotlib, and sklearn.

@Mond45 I am no expert in those libraries but from the trace it looks like they have a lot of documentations for some functions and rendering those is slow. Does that sound reasonable? Can you try to find a specific function which, when calling, shows the slowdown

[Mond45]

@jrieken It's true that those libraries do have long documentations for some functions, still the whole renderer process should not be freezing. To reproduce this, you could try plt.figure function from matplotlib, and np.argmin from numpy.

[jrieken]

No success with neither of them... When rendering markdown we cap the input length to 100000 characters which is quite conservative. The sanitize call with those functions is <1ms for me, there must be a very specific case you are hidden, like one which doesn't go well with some sanitze regexes we use. Tho, I need your help and reliable repro case. Also sure what version of vscode and python/pylance you are using

[Mond45]

Here are the versions for my vscode, and installed extensions.

Version: Code 1.86.2 (903b1e9d8990623e3d7da1df3d33db3e42d80eda, 2024-02-13T19:40:56.878Z)

13xforever.language-x86-64-assembly@3.1.4
albert.tabout@0.2.2
bradlc.vscode-tailwindcss@0.10.5
christian-kohler.path-intellisense@2.8.5
ckolkman.vscode-postgres@1.4.3
dbaeumer.vscode-eslint@2.4.4
eamodio.gitlens@14.8.2
esbenp.prettier-vscode@10.1.0
github.copilot@1.162.0
github.copilot-chat@0.12.2
github.vscode-pull-request-github@0.80.1
james-yu.latex-workshop@9.18.2
jeff-hykin.better-cpp-syntax@1.17.2
mongodb.mongodb-vscode@1.5.0
ms-azuretools.vscode-docker@1.29.0
ms-python.black-formatter@2023.6.0
ms-python.debugpy@2024.0.0
ms-python.isort@2023.10.1
ms-python.python@2024.0.1
ms-python.vscode-pylance@2024.2.2
ms-toolsai.jupyter@2024.1.1
ms-toolsai.jupyter-keymap@1.1.2
ms-toolsai.jupyter-renderers@1.0.17
ms-toolsai.vscode-jupyter-cell-tags@0.1.8
ms-toolsai.vscode-jupyter-slideshow@0.1.5
ms-vscode-remote.remote-wsl@0.86.0
ms-vscode.cmake-tools@1.17.15
ms-vscode.cpptools@1.18.5
ms-vscode.cpptools-themes@2.0.0
ms-vscode.makefile-tools@0.8.22
ms-vscode.powershell@2024.0.0
ms-vsliveshare.vsliveshare@1.0.5905
pkief.material-icon-theme@4.34.0
quarto.quarto@1.110.1
thqby.vscode-autohotkey2-lsp@2.3.2
zhuangtongfa.material-theme@3.16.2

The code is run inside Jupyter notebook, if that helps.

[jrieken]

Same for me with notebook. Please try to extract a code snippet with which you can reproduce this. Thanks

[jsecrest]

I've been trying to reproduce my issue for about a week, but I've either stopped having the issue, or I'm not able to spend enough time. In my case, the issue would start up after an hour or two of working, and I've only had time for shorter dev sessions this week.

To clarify my symptoms: the application would seem to freeze while typing anything that might cause a linter popup for auto competition, especially when getting the doc strings for a function. By "freeze" I mean that it would stop accepting mouse and keyboard input. However, keyboard input was still tracked, as after the freeze, the keyboard input I typed while frozen would appear.

When I attempted to get profile information to share, I saw long jobs that I think were in an animation category. I wish I had taken a screenshot. If I'm able to spend enough time to recreate the issue I'll report back, but for now I'm not able to replicate it.

Jason Secrest

On Tue, Feb 20, 2024 at 8:56 AM Johannes Rieken @.***> wrote:

Same for me with notebook. Please try to extract a code snippet with which you can reproduce this. Thanks

— Reply to this email directly, view it on GitHub https://github.com/microsoft/vscode/issues/204234#issuecomment-1954521854, or unsubscribe https://github.com/notifications/unsubscribe-auth/AD423Z6THSFQZN3WYMAP5QTYUTBRNAVCNFSM6AAAAABCX6VW2GVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMYTSNJUGUZDCOBVGQ . You are receiving this because you were mentioned.Message ID: @.***>

[mjbvz]

Closing as we can't investigate this without a way to reproduce the problem