Poor display/interaction performance on 4k linux

[aivanov61]

Type: Bug

Run VScode on linux through VNC server on a large (4k) monitor and make the VScode window large (or full-screen).

VS Code version: Code 1.76.2 (ee2b180d582a7f601fa6ecfdad8d9fd269ab1884, 2023-03-14T17:57:21.103Z) OS version: Linux x64 4.12.14-122.136-default Modes: Sandboxed: Yes

System Info

|Item|Value| |---|---| |CPUs|Intel(R) Xeon(R) W-3245 CPU @ 3.20GHz (16 x 3200)| |GPU Status|2d_canvas: unavailable_software
canvas_oop_rasterization: disabled_off
direct_rendering_display_compositor: disabled_off_ok
gpu_compositing: disabled_software
multiple_raster_threads: enabled_on
opengl: disabled_off
rasterization: disabled_software
raw_draw: disabled_off_ok
skia_renderer: enabled_on
video_decode: disabled_software
video_encode: disabled_software
vulkan: disabled_off
webgl: unavailable_software
webgl2: unavailable_software
webgpu: disabled_off| |Load (avg)|0, 0, 0| |Memory (System)|754.27GB (727.33GB free)| |Process Argv|--crash-reporter-id 95dd5f91-34fa-4080-af84-d533df9dd511| |Screen Reader|no| |VM|0%| |DESKTOP_SESSION|undefined| |XDG_CURRENT_DESKTOP|undefined| |XDG_SESSION_DESKTOP|undefined| |XDG_SESSION_TYPE|undefined|

Extensions (17)

Extension|Author (truncated)|Version ---|---|--- gitlens|eam|13.4.0 intellij-idea-keybindings|k--|1.5.7 vsc-python-indent|Kev|1.18.0 isort|ms-|2022.8.0 python|ms-|2023.4.1 vscode-pylance|ms-|2023.3.20 jupyter|ms-|2023.2.1200692131 vscode-jupyter-cell-tags|ms-|0.1.8 vscode-jupyter-slideshow|ms-|0.1.5 cmake-tools|ms-|1.13.45 cpptools|ms-|1.14.4 cpptools-extension-pack|ms-|1.3.0 code-spell-checker|str|2.20.1 cmake|twx|0.0.17 intellicode-api-usage-examples|Vis|0.2.7 vscodeintellicode|Vis|1.2.30 vim|vsc|1.25.2 (1 theme extensions excluded)

A/B Experiments

``` vsliv368cf:30146710 vsreu685:30147344 python383cf:30185419 vspor879:30202332 vspor708:30202333 vspor363:30204092 vslsvsres303:30308271 pythonvspyl392:30443607 vserr242:30382549 pythontb:30283811 vsjup518:30340749 pythonptprofiler:30281270 vshan820:30294714 vstes263:30335439 vscorecescf:30445987 pythondataviewer:30285071 vscod805:30301674 binariesv615:30325510 bridge0708:30335490 bridge0723:30353136 cmake_vspar411:30581797 vsaa593cf:30376535 pythonvs932:30410667 cppdebug:30492333 vsclangdc:30486549 c4g48928:30535728 dsvsc012cf:30540253 pynewext54:30681850 azure-dev_surveyone:30548225 pyindex848:30662994 nodejswelcome1cf:30587006 2e4cg342:30602488 pyind779:30671433 89544117:30613380 pythonsymbol12:30671437 vsctsb:30677850 pythonb192cf:30669361 functionswalk:30687959 pythonms35cf:30686773 ```

[aivanov61]

Hi @deepak1556, what's the status of this issue?

[aivanov61]

Profile-20230421T170501.zip

[aivanov61]

BTW, I'm noticing very high Cumulative Layout Shift (for example, CLS score is 1.229)

[deepak1556]

Can you check if the issue repros with our latest insiders version https://code.visualstudio.com/insiders ?

[aivanov61]

I downloaded the latest insiders version; the issue repros with it. I ran the developer too profiler, captured a trace, but when I tried to save the Profile so I could upload it here, VSCode hung. Please let me know if you need me to try to save a Profile with this version again. BTW, performance seemed to be worse on this insiders version. Thanks!

[deepak1556]

Can you try with hardware acceleration disabled in the application https://code.visualstudio.com/updates/v1_40#_disable-gpu-acceleration

[aivanov61]

It is already disabled (you can see in previous logs) because I am running on a server farm which doesn't have any GPUs. I also explicitly ran with (and am now running with) --disable-gpu and there is no difference.

scff015504:/<4>nvl/clones/te-simics.sles12> ( /nfs/site/disks/aivanov_fw_01/tools/VSCode-linux-x64/bin/code-insiders --status) Fontconfig warning: "/etc/fonts/fonts.conf", line 86: unknown element "blank" [21455:0424/090339.060707:ERROR:bus.cc(399)] Failed to connect to the bus: Could not parse server address: Unknown address type (examples of valid types are "tcp" and on UNIX "unix") [21455:0424/090339.060756:ERROR:bus.cc(399)] Failed to connect to the bus: Could not parse server address: Unknown address type (examples of valid types are "tcp" and on UNIX "unix") [21455:0424/090339.127962:WARNING:bluez_dbus_manager.cc(247)] Floss manager not present, cannot set Floss enable/disable. [21489:0424/090339.187449:ERROR:angle_platform_impl.cc(43)] Display.cpp:1004 (initialize): ANGLE Display::initialize error 12289: Unsupported GLX version (requires at least 1.3). ERR: Display.cpp:1004 (initialize): ANGLE Display::initialize error 12289: Unsupported GLX version (requires at least 1.3). [21489:0424/090339.187527:ERROR:gl_display.cc(508)] EGL Driver message (Critical) eglInitialize: Unsupported GLX version (requires at least 1.3). [21489:0424/090339.187550:ERROR:gl_display.cc(920)] eglInitialize OpenGL failed with error EGL_NOT_INITIALIZED, trying next display type [21489:0424/090339.189039:ERROR:angle_platform_impl.cc(43)] Display.cpp:1004 (initialize): ANGLE Display::initialize error 12289: Unsupported GLX version (requires at least 1.3). ERR: Display.cpp:1004 (initialize): ANGLE Display::initialize error 12289: Unsupported GLX version (requires at least 1.3). [21489:0424/090339.189086:ERROR:gl_display.cc(508)] EGL Driver message (Critical) eglInitialize: Unsupported GLX version (requires at least 1.3). [21489:0424/090339.189109:ERROR:gl_display.cc(920)] eglInitialize OpenGLES failed with error EGL_NOT_INITIALIZED [21489:0424/090339.189130:ERROR:gl_ozone_egl.cc(23)] GLDisplayEGL::Initialize failed. [21489:0424/090339.193649:ERROR:viz_main_impl.cc(186)] Exiting GPU process due to errors during initialization [21520:0424/090339.265309:ERROR:angle_platform_impl.cc(43)] Display.cpp:1004 (initialize): ANGLE Display::initialize error 12289: Unsupported GLX version (requires at least 1.3). ERR: Display.cpp:1004 (initialize): ANGLE Display::initialize error 12289: Unsupported GLX version (requires at least 1.3). [21520:0424/090339.265385:ERROR:gl_display.cc(508)] EGL Driver message (Critical) eglInitialize: Unsupported GLX version (requires at least 1.3). [21520:0424/090339.265411:ERROR:gl_display.cc(920)] eglInitialize OpenGL failed with error EGL_NOT_INITIALIZED, trying next display type [21520:0424/090339.266721:ERROR:angle_platform_impl.cc(43)] Display.cpp:1004 (initialize): ANGLE Display::initialize error 12289: Unsupported GLX version (requires at least 1.3). ERR: Display.cpp:1004 (initialize): ANGLE Display::initialize error 12289: Unsupported GLX version (requires at least 1.3). [21520:0424/090339.266762:ERROR:gl_display.cc(508)] EGL Driver message (Critical) eglInitialize: Unsupported GLX version (requires at least 1.3). [21520:0424/090339.266783:ERROR:gl_display.cc(920)] eglInitialize OpenGLES failed with error EGL_NOT_INITIALIZED [21520:0424/090339.266803:ERROR:gl_ozone_egl.cc(23)] GLDisplayEGL::Initialize failed. [21520:0424/090339.271629:ERROR:viz_main_impl.cc(186)] Exiting GPU process due to errors during initialization [21567:0424/090339.306114:WARNING:sandbox_linux.cc(380)] InitializeSandbox() called with multiple threads in process gpu-process. [21567:0424/090339.308193:ERROR:gpu_memory_buffer_support_x11.cc(44)] dri3 extension not supported. Version: Code - Insiders 1.78.0-insider (3a69e153f6c68b2b855fb2f1e5bdb798a16a1ee4, 2023-04-24T05:21:12.188Z) OS Version: Linux x64 4.12.14-122.136-default CPUs: Intel(R) Xeon(R) Gold 6336Y CPU @ 2.40GHz (48 x 2400) Memory (System): 1007.23GB (896.15GB free) Load (avg): 3, 3, 2 VM: 0% Screen Reader: no Process Argv: --disable-gpu /nfs/site/disks/aivanov_fw_01/nvl/clones/te-simics.sles12 --crash-reporter-id 5f8559e4-b021-4b9d-83cd-02f53e7b218d GPU Status: 2d_canvas: unavailable_software canvas_oop_rasterization: disabled_off direct_rendering_display_compositor: disabled_off_ok gpu_compositing: disabled_software multiple_raster_threads: enabled_on opengl: disabled_off rasterization: disabled_software raw_draw: disabled_off_ok video_decode: disabled_software video_encode: disabled_software vulkan: disabled_off webgl: unavailable_software webgl2: unavailable_software webgpu: disabled_off

CPU % Mem MB PID Process 0 0 16879 code-insiders main 0 0 16882 zygote 0 0 16913 gpu-process 0 0 16883 zygote 0 0 16885 zygote 0 0 16970 window [1] (tsc_manager.cpp - te-simics.sles12 - Visual Studio Code - Insiders) 0 0 16955 utility-network-service 0 0 16991 extensionHost [1] 0 0 17002 shared-process 0 0 17048 ptyHost 0 0 17003 fileWatcher [1] 0 0 17122 utility-process

Workspace Stats: | Window (tsc_manager.cpp - te-simics.sles12 - Visual Studio Code - Insiders) | Folder (te-simics.sles12): 993 files | File types: cmake(189) o(66) c(42) py(40) pyc(37) h(33) txt(31) cpp(17) | so(17) simics(8) | Conf files: cmake(189) github-actions(2) settings.json(1)

[deepak1556]

The GL errors might be the root cause, can you try running with --use-gl=swiftshader

[aivanov61]

scff015504:/<4>nvl/clones/te-simics.sles12> ( /nfs/site/disks/aivanov_fw_01/tools/VSCode-linux-x64/bin/code-insiders --use-gl=swiftshader & ) scff015504:/<4>nvl/clones/te-simics.sles12> Warning: 'use-gl' is not in the list of known options, but still passed to Electron/Chromium.

Issue repros.

I think fundamentally the issue is that chromium on Linux without GPU does not perform well. Unfortunately, I do now know how to get a comprehensive list of options/env variables that I can play with to help performance. I suspect that I need to increase some memory limit since I don't see any huge CPU usage going on.

[aivanov61]

Hi Deepak - any update on this?

[deepak1556]

Can you check the following,

1) Does the issue repro when you use https://vscode.dev in a chromium browser over the same VNC setup ? 2) Does the issue repro with our exploration build code-exploration-x64

[aivanov61]

The problem repos on both 1 (native Linux chromium @ https://vscode.dev) & 2 (code-exploration).

In addition, though, code-exploration is linked against a different Linux kernel (we use SuSE version 12), so I get the follow error: [main 2023-05-02T18:39:31.728Z] Error: /lib64/libm.so.6: version `GLIBC_2.29' not found (required by /nfs/site/disks/aivanov_fw_01/tools/VSCode-linux-x64-exploration/resources/app/node_modules.asar.unpacked/@vscode/sqlite3/build/Release/vscode-sqlite3.node)

[deepak1556]

Thanks for testing, given it still repros with latest chromium can you help file an issue in https://bugs.chromium.org/p/chromium/issues/list using https://vscode.dev/ as repro.

[aivanov61]

I filed Chromium issue: https://bugs.chromium.org/p/chromium/issues/detail?id=1442310

[aivanov61]

What is the current status of this issue? Even the latest VScode (1.84.2) is still unbearably slow on native Linux with no GPU and full 4k screen.