Terminal output slow in VSCode Remote over SSH #213304
Description
Type: Performance Issue
When we have a lot of terminal output (e.g. building a library like curl) the terminal lags a lot and even VCode itself hangs or loose its connection to the SSH host. If I redirect output to vscode using someCmd | vscode - no such lag occours.
A lot of time is spent in then in lineFeed @ InputHandler.ts:709:10 and its children
VS Code version: Code 1.89.1 (dc96b83, 2024-05-07T05:13:33.891Z)
OS version: Windows_NT x64 10.0.22631
Modes:
Remote OS version: Linux x64 5.15.0-107-generic
System Info
| Item | Value |
|---|---|
| CPUs | AMD Ryzen 7 PRO 7840U w/ Radeon 780M Graphics (16 x 3294) |
| 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) | 30.72GB (15.78GB free) |
| Process Argv | --crash-reporter-id ac7bbc20-078a-468a-94f6-3bcaa4308dec |
| Screen Reader | no |
| VM | 0% |
| Item | Value |
|---|---|
| Remote | SSH: build01-xxxxxxxx |
| OS | Linux x64 5.15.0-107-generic |
| CPUs | AMD Ryzen Threadripper 3970X 32-Core Processor (64 x 2200) |
| Memory (System) | 125.64GB (99.63GB free) |
| VM | 0% |
Process Info
CPU % Mem MB PID Process
0 135 18452 code main
0 353 15788 window
0 1131 18724 window [1] (curl.gsbuild (Working Tree) (curl.gsbuild) - sd (Workspace) [SSH: build01-xxxxxxxx] - Visual Studio Code)
0 31 18800 crashpad-handler
0 872 19012 gpu-process
0 45 19060 utility-network-service
0 140 19960 extensionHost [1]
0 111 19972 shared-process
0 82 19992 fileWatcher [1]
0 90 20764 ptyHost
0 8 3812 conpty-agent
0 5 20504 C:\Windows\System32\cmd.exe /c (type "C:\Users\xxxxxxxx\AppData\Local\Temp\vscode-linux-multi-line-command-build01-xxxxxxxx-998210220.sh" | "C:\Windows\System32\OpenSSH\ssh.exe" -T -D 50972 "build01-xxxxxxxx" bash) & exit /b 0
0 11 20124 "C:\Windows\System32\OpenSSH\ssh.exe" -T -D 50972 "build01-xxxxxxxx" bash
0 303 23380 "C:\Program Files\Google\Chrome\Application\chrome.exe" --single-argument https://github.com/open62541/open62541.git
0 148 1144 window
0 55 1204 window
0 54 1248 window
0 162 3376 window
0 93 6960 window
0 102 7176 window
0 55 11356 window
0 23 12240 utility-process
0 86 14468 window
0 54 14560 window
0 155 18280 window
0 54 18288 utility-network-service
0 10 18584 crashpad-handler
0 72 19836 window
0 57 21148 window
0 31 22816 utility-process
0 353 22852 gpu-process
0 101 23652 window
0 56 24484 window
0 191 25344 window
0 30 25472 window
0 62 25892 window
0 55 26412 window
0 65 26448 window
0 54 26556 window
0 101 24972 utility-process
0 111 25824 window [3] (Issue Reporter)
Remote: SSH: build01-xxxxxxxx
CPU % Mem MB PID Process
0 0 1599731 remote agent
0 0 1599758 extension-host
0 0 1600918 /home/xxxxxxxx/.vscode-server/extensions/ms-vscode.cpptools-1.20.5-linux-x64/bin/cpptools
0 0 1600960 /home/xxxxxxxx/.vscode-server/cli/servers/Stable-dc96b837cf6bb4af9cd736aa3af08cf8279f7685/server/node /home/xxxxxxxx/.vscode-server/cli/servers/Stable-dc96b837cf6bb4af9cd736aa3af08cf8279f7685/server/extensions/json-language-features/server/dist/node/jsonServerMain --node-ipc --clientProcessId=1599758
0 0 1602232 /home/xxxxxxxx/.vscode-server/cli/servers/Stable-dc96b837cf6bb4af9cd736aa3af08cf8279f7685/server/node /home/xxxxxxxx/.vscode-server/extensions/streetsidesoftware.code-spell-checker-3.0.1/packages/_server/dist/main.cjs --node-ipc --clientProcessId=1599758
0 0 1635331 /home/xxxxxxxx/.vscode-server/cli/servers/Stable-dc96b837cf6bb4af9cd736aa3af08cf8279f7685/server/node /home/xxxxxxxx/.vscode-server/cli/servers/Stable-dc96b837cf6bb4af9cd736aa3af08cf8279f7685/server/extensions/markdown-language-features/server/dist/node/workerMain --node-ipc --clientProcessId=1599758
0 0 1936539 perl -MPerl::LanguageServer -e Perl::LanguageServer::run -- --port 13603 --log-level 2 --log-file --version 2.6.2
0 0 1599769 ptyHost
0 0 1600986 /bin/bash --rcfile /home/xxxxxxxx/projects/sd/MCP/Devices/MCPJ/tools/batch/setenv.sh
0 0 2081889 /bin/bash --rcfile /home/xxxxxxxx/projects/sd/MCP/Devices/MCPJ/tools/batch/setenv.sh
0 0 2527577 /bin/bash --rcfile /home/xxxxxxxx/projects/sd/MCP/Devices/MCPJ/tools/batch/setenv.sh
1 0 1599780 fileWatcher
0 0 1785119 /bin/sh -c /usr/bin/ps -ax -o pid=,ppid=,pcpu=,pmem=,command=
0 0 1785120 /usr/bin/ps -ax -o pid=,ppid=,pcpu=,pmem=,command=
Workspace Info
| Remote: SSH: build01-xxxxxxxx;
Extensions (47)
| Extension | Author (truncated) | Version |
|---|---|---|
| vscode-sql-formatter | adp | 1.4.4 |
| pascal | ale | 9.8.0 |
| pascal-formatter | ale | 2.8.1 |
| vscode-innosetup | cho | 1.9.2 |
| doxdocgen | csc | 1.4.0 |
| autoit | Dam | 1.0.12 |
| xml | Dot | 2.5.1 |
| gitlens | eam | 15.0.4 |
| vscode-google-translate | fun | 1.4.13 |
| svn-scm | joh | 2.17.0 |
| cortex-debug | mar | 1.12.1 |
| vscode-catch2-test-adapter | mat | 4.12.0 |
| debug-tracker-vscode | mcu | 0.0.15 |
| memory-view | mcu | 0.0.25 |
| peripheral-viewer | mcu | 1.4.6 |
| rtos-views | mcu | 0.0.7 |
| mesonbuild | mes | 1.24.0 |
| git-graph | mhu | 1.30.0 |
| cmake-tools | ms- | 1.17.17 |
| cpptools | ms- | 1.20.5 |
| hexeditor | ms- | 1.10.0 |
| perl | ric | 2.6.2 |
| shader | sle | 1.1.5 |
| code-spell-checker | str | 3.0.1 |
| code-spell-checker-german | str | 2.3.2 |
| cmake | twx | 0.0.17 |
| cfg-language-features | weg | 1.0.0 |
| srecord | xia | 0.0.5 |
| Doxygen | bbe | 1.0.0 |
| systemd-unit-file | coo | 1.0.6 |
| vscode-systemd-support | han | 2.2.0 |
| kconfig | luv | 1.0.3 |
| debug-tracker-vscode | mcu | 0.0.15 |
| peripheral-viewer | mcu | 1.4.6 |
| cadsoft-ulp | mic | 1.0.0 |
| remote-containers | ms- | 0.362.0 |
| remote-ssh | ms- | 0.110.1 |
| remote-ssh-edit | ms- | 0.86.0 |
| remote-wsl | ms- | 0.88.2 |
| vscode-remote-extensionpack | ms- | 0.25.0 |
| notepadplusplus-keybindings | ms- | 1.0.7 |
| remote-explorer | ms- | 0.4.3 |
| remote-server | ms- | 1.5.1 |
| devicetree | plo | 0.1.1 |
| errorlens | use | 3.17.0 |
| vscode-icons | vsc | 12.7.0 |
| linkerscript | Zix | 1.0.4 |
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