analysis server consumes significant memory when VS Code restores a dirty file buffer for a project that no longer exists

[zinface]

i open my computer, and vscode , in 3 minutes , have one nosave dart code in editor(old). so , my memory always been rising.

i have a picture!

After a while:

[zinface]

in /tmp/tmp.xxxx(code \mktemp -d``) workspace, i edit a file . now restart my computer/vscode, Vscode has an unsaved file.. top.

[DanTup]

Can you run code --status while the memory usage is high and post the full output here?

[zinface]

I can explain the recurrence steps of this problem hand in hand:

• my environment is Deepin Linux.

  zinface@zinface-PC:~$ neofetch 
               ............                zinface@zinface-PC 
           .';;;;;.       .,;,.            ------------------ 
        .,;;;;;;;.       ';;;;;;;.         OS: Deepin 20.7.1 x86_64 
      .;::::::::'     .,::;;,''''',.       Kernel: 5.15.45-amd64-desktop 
     ,'.::::::::    .;;'.          ';      Uptime: 5 hours, 5 mins 
    ;'  'cccccc,   ,' :: '..        .:     Packages: 2316 (dpkg) 
   ,,    :ccccc.  ;: .c, '' :.       ,;    Shell: bash 5.0.3 
  .l.     cllll' ., .lc  :; .l'       l.   Resolution: 2560x1440 
  .c       :lllc  ;cl:  .l' .ll.      :'   DE: Deepin 
  .l        'looc. .   ,o:  'oo'      c,   WM: KWin 
  .o.         .:ool::coc'  .ooo'      o.   Theme: deepin [GTK2/3] 
   ::            .....   .;dddo      ;c    Icons: bloom-classic [GTK2/3] 
    l:...            .';lddddo.     ,o     Terminal: deepin-terminal 
     lxxxxxdoolllodxxxxxxxxxc      :l      CPU: Intel Xeon E5-2680 v2 (20) @ 3.600GHz 
      ,dxxxxxxxxxxxxxxxxxxl.     'o,       GPU: NVIDIA GeForce GTX 750 
        ,dkkkkkkkkkkkkko;.    .;o;         Memory: 20768MiB / 32033MiB 
          .;okkkkkdl;.    .,cl:.
              .,:cccccccc:,.                                       
  
  zinface@zinface-PC:~$ 

• Let's reproduce the problem.

  The following is described in the window with only one VSCode instance.

  1. You use mktemp -d or any other method to create a temporary folder, which we will delete later.

     This is a way to simulate the use of memory space (tmpfs) or to create temporary engineering projects under /tmp.

  2. You go to the folder and use dart create dart_project to create a dart project and open it using VSCode.

  3. You find a dart file that exists in the project to edit it, but you do not save it, so we will directly close VSCode.

  4. We delete the temporary directory in this step and simulate that the contents in the tmpfs are emptied after restart.

  5. We open VSCode again, and VSCode will try to open the project before the last instance was closed.

     Because we have deleted the folder, there is only one unsaved dart file in the window.

     At this time, I found that the memory footprint on my machine was rising.

Above, I use machine translation to explain the problem.

[zinface]

Can you run code --status while the memory usage is high and post the full output here?

Reply: information from code --status

The following is the information when memory usage is 20%, 40%, 60%, 80%, respectively.

NOTE: Note that I didn't find much difference when I compared the contents of three files using the meld tool.

• Memory 20%(It just started.)

  [144190:1124/013627.579366:WARNING:bluez_dbus_manager.cc(248)] Floss manager not present, cannot set Floss enable/disable.
  [144232:1124/013627.702708:ERROR:vaapi_wrapper.cc(1131)] vaQuerySurfaceAttributes failed, VA error: invalid parameter
  [144232:1124/013627.702826:ERROR:vaapi_wrapper.cc(1078)] FillProfileInfo_Locked failed for va_profile VAProfileH264Main and entrypoint VAEntrypointVLD
  [144232:1124/013627.702897:ERROR:vaapi_wrapper.cc(1131)] vaQuerySurfaceAttributes failed, VA error: invalid parameter
  [144232:1124/013627.702948:ERROR:vaapi_wrapper.cc(1078)] FillProfileInfo_Locked failed for va_profile VAProfileH264High and entrypoint VAEntrypointVLD
  Version:          Code 1.73.0 (8fa188b2b301d36553cbc9ce1b0a146ccb93351f, 2022-11-01T15:44:09.336Z)
  OS Version:       Linux x64 5.15.45-amd64-desktop
  CPUs:             Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz (20 x 2742)
  Memory (System):  31.28GB (24.92GB free)
  Load (avg):       2, 1, 1
  VM:               0%
  Screen Reader:    no
  Process Argv:     --unity-launch --crash-reporter-id b18b9af0-f391-4c91-bc45-47c3cd02136c
  GPU Status:       2d_canvas:                              enabled
                  canvas_oop_rasterization:               disabled_off
                  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_renderer:                          enabled_on
                  video_decode:                           disabled_software
                  video_encode:                           disabled_software
                  vulkan:                                 disabled_off
                  webgl:                                  enabled
                  webgl2:                                 enabled
                  webgpu:                                 disabled_off
  
  CPU %   Mem MB     PID  Process
      0      128  143481  code main
      0       32  143484     zygote
      0      128  143517       gpu-process
      0        0  143525         broker
      0       32  143485     zygote
      0        0  143487       zygote
      0       32  143523     utility-network-service
      0      224  143541     window (● file_demo.dart - Visual Studio Code)
      0      128  143617     shared-process
      0       64  143655       ptyHost
      0       64  143697       fileWatcher
      0      160  143631     extensionHost
      0        0  143714       /bin/sh -c "/home/zinface/deploy/flutter-sdk/bin/cache/dart-sdk/bin/dart" "language-server" "--protocol=lsp" "--client-id=VS-Code" "--client-version=3.52.1"
      0        0  143720       /home/zinface/.config/Code/User/globalStorage/tabnine.tabnine-vscode/binaries/4.4.186/x86_64-unknown-linux-musl/TabNine --client=vscode --no-lsp=true --client-metadata clientVersion=1.73.0 pluginVersion=3.6.23 t9-vscode-AutoImportEnabled=true t9-vscode-TSAutoImportEnabled=true t9-vscode-JSAutoImportEnabled=true vscode-telemetry-enabled=true vscode-remote=false vscode-remote-name=undefined vscode-extension-kind=1 vscode-theme-name=One Dark Pro vscode-theme-kind=Dark vscode-machine-id=c978ebde2bcfb69187da13850ec3f9cbbd947872615ab9494b612105210543b6 vscode-is-new-app-install=false vscode-session-id=c6e12a68-e76e-4066-80d6-92a815c74daf1669224970022 vscode-language=zh-cn vscode-app-name=Visual Studio Code vscode-beta-channel-enabled=false vscode-status-customization=unknown ide-restart-counter=0
      0       96  143773         /home/zinface/.config/Code/User/globalStorage/tabnine.tabnine-vscode/binaries/4.4.186/x86_64-unknown-linux-musl/TabNine --client=vscode --no-lsp=true --client-metadata clientVersion=1.73.0 pluginVersion=3.6.23 t9-vscode-AutoImportEnabled=true t9-vscode-TSAutoImportEnabled=true t9-vscode-JSAutoImportEnabled=true vscode-telemetry-enabled=true vscode-remote=false vscode-remote-name=undefined vscode-extension-kind=1 vscode-theme-name=One Dark Pro vscode-theme-kind=Dark vscode-machine-id=c978ebde2bcfb69187da13850ec3f9cbbd947872615ab9494b612105210543b6 vscode-is-new-app-install=false vscode-session-id=c6e12a68-e76e-4066-80d6-92a815c74daf1669224970022 vscode-language=zh-cn vscode-app-name=Visual Studio Code vscode-beta-channel-enabled=false vscode-status-customization=unknown ide-restart-counter=0 --no_bootstrap
      0       64  143923       /usr/share/code/code --ms-enable-electron-run-as-node /usr/share/code/resources/app/extensions/json-language-features/server/dist/node/jsonServerMain --node-ipc --clientProcessId=143631
  

• Memory 40%

  zinface@zinface-PC:~$ code --status
  [144540:1124/013736.827345:WARNING:bluez_dbus_manager.cc(248)] Floss manager not present, cannot set Floss enable/disable.
  [144576:1124/013737.016947:ERROR:vaapi_wrapper.cc(1131)] vaQuerySurfaceAttributes failed, VA error: invalid parameter
  [144576:1124/013737.017067:ERROR:vaapi_wrapper.cc(1078)] FillProfileInfo_Locked failed for va_profile VAProfileH264Main and entrypoint VAEntrypointVLD
  [144576:1124/013737.017127:ERROR:vaapi_wrapper.cc(1131)] vaQuerySurfaceAttributes failed, VA error: invalid parameter
  [144576:1124/013737.017173:ERROR:vaapi_wrapper.cc(1078)] FillProfileInfo_Locked failed for va_profile VAProfileH264High and entrypoint VAEntrypointVLD
  Version:          Code 1.73.0 (8fa188b2b301d36553cbc9ce1b0a146ccb93351f, 2022-11-01T15:44:09.336Z)
  OS Version:       Linux x64 5.15.45-amd64-desktop
  CPUs:             Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz (20 x 2800)
  Memory (System):  31.28GB (18.22GB free)
  Load (avg):       2, 1, 1
  VM:               0%
  Screen Reader:    no
  Process Argv:     --unity-launch --crash-reporter-id b18b9af0-f391-4c91-bc45-47c3cd02136c
  GPU Status:       2d_canvas:                              enabled
                  canvas_oop_rasterization:               disabled_off
                  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_renderer:                          enabled_on
                  video_decode:                           disabled_software
                  video_encode:                           disabled_software
                  vulkan:                                 disabled_off
                  webgl:                                  enabled
                  webgl2:                                 enabled
                  webgpu:                                 disabled_off
  
  CPU %   Mem MB     PID  Process
      0      128  143481  code main
      0       32  143484     zygote
      0      128  143517       gpu-process
      0        0  143525         broker
      0       32  143485     zygote
      0        0  143487       zygote
      0       32  143523     utility-network-service
      0      192  143541     window (● file_demo.dart - Visual Studio Code)
      0      128  143617     shared-process
      0       64  143655       ptyHost
      0       64  143697       fileWatcher
      0      128  143631     extensionHost
      0        0  143714       /bin/sh -c "/home/zinface/deploy/flutter-sdk/bin/cache/dart-sdk/bin/dart" "language-server" "--protocol=lsp" "--client-id=VS-Code" "--client-version=3.52.1"
      0        0  143720       /home/zinface/.config/Code/User/globalStorage/tabnine.tabnine-vscode/binaries/4.4.186/x86_64-unknown-linux-musl/TabNine --client=vscode --no-lsp=true --client-metadata clientVersion=1.73.0 pluginVersion=3.6.23 t9-vscode-AutoImportEnabled=true t9-vscode-TSAutoImportEnabled=true t9-vscode-JSAutoImportEnabled=true vscode-telemetry-enabled=true vscode-remote=false vscode-remote-name=undefined vscode-extension-kind=1 vscode-theme-name=One Dark Pro vscode-theme-kind=Dark vscode-machine-id=c978ebde2bcfb69187da13850ec3f9cbbd947872615ab9494b612105210543b6 vscode-is-new-app-install=false vscode-session-id=c6e12a68-e76e-4066-80d6-92a815c74daf1669224970022 vscode-language=zh-cn vscode-app-name=Visual Studio Code vscode-beta-channel-enabled=false vscode-status-customization=unknown ide-restart-counter=0
      0       96  143773         /home/zinface/.config/Code/User/globalStorage/tabnine.tabnine-vscode/binaries/4.4.186/x86_64-unknown-linux-musl/TabNine --client=vscode --no-lsp=true --client-metadata clientVersion=1.73.0 pluginVersion=3.6.23 t9-vscode-AutoImportEnabled=true t9-vscode-TSAutoImportEnabled=true t9-vscode-JSAutoImportEnabled=true vscode-telemetry-enabled=true vscode-remote=false vscode-remote-name=undefined vscode-extension-kind=1 vscode-theme-name=One Dark Pro vscode-theme-kind=Dark vscode-machine-id=c978ebde2bcfb69187da13850ec3f9cbbd947872615ab9494b612105210543b6 vscode-is-new-app-install=false vscode-session-id=c6e12a68-e76e-4066-80d6-92a815c74daf1669224970022 vscode-language=zh-cn vscode-app-name=Visual Studio Code vscode-beta-channel-enabled=false vscode-status-customization=unknown ide-restart-counter=0 --no_bootstrap
      0       64  143923       /usr/share/code/code --ms-enable-electron-run-as-node /usr/share/code/resources/app/extensions/json-language-features/server/dist/node/jsonServerMain --node-ipc --clientProcessId=143631
  

• Memory 60%

  zinface@zinface-PC:~$ code --status
  [144815:1124/013840.961003:WARNING:bluez_dbus_manager.cc(248)] Floss manager not present, cannot set Floss enable/disable.
  [144851:1124/013841.105395:ERROR:vaapi_wrapper.cc(1131)] vaQuerySurfaceAttributes failed, VA error: invalid parameter
  [144851:1124/013841.105516:ERROR:vaapi_wrapper.cc(1078)] FillProfileInfo_Locked failed for va_profile VAProfileH264Main and entrypoint VAEntrypointVLD
  [144851:1124/013841.105584:ERROR:vaapi_wrapper.cc(1131)] vaQuerySurfaceAttributes failed, VA error: invalid parameter
  [144851:1124/013841.105643:ERROR:vaapi_wrapper.cc(1078)] FillProfileInfo_Locked failed for va_profile VAProfileH264High and entrypoint VAEntrypointVLD
  Version:          Code 1.73.0 (8fa188b2b301d36553cbc9ce1b0a146ccb93351f, 2022-11-01T15:44:09.336Z)
  OS Version:       Linux x64 5.15.45-amd64-desktop
  CPUs:             Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz (20 x 2708)
  Memory (System):  31.28GB (11.99GB free)
  Load (avg):       2, 1, 1
  VM:               0%
  Screen Reader:    no
  Process Argv:     --unity-launch --crash-reporter-id b18b9af0-f391-4c91-bc45-47c3cd02136c
  GPU Status:       2d_canvas:                              enabled
                  canvas_oop_rasterization:               disabled_off
                  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_renderer:                          enabled_on
                  video_decode:                           disabled_software
                  video_encode:                           disabled_software
                  vulkan:                                 disabled_off
                  webgl:                                  enabled
                  webgl2:                                 enabled
                  webgpu:                                 disabled_off
  
  CPU %   Mem MB     PID  Process
      0      128  143481  code main
      0       32  143484     zygote
      0      128  143517       gpu-process
      0        0  143525         broker
      0       32  143485     zygote
      0        0  143487       zygote
      0       32  143523     utility-network-service
      0      224  143541     window (● file_demo.dart - Visual Studio Code)
      0      128  143617     shared-process
      0       64  143655       ptyHost
      0       64  143697       fileWatcher
      0      128  143631     extensionHost
      0        0  143714       /bin/sh -c "/home/zinface/deploy/flutter-sdk/bin/cache/dart-sdk/bin/dart" "language-server" "--protocol=lsp" "--client-id=VS-Code" "--client-version=3.52.1"
      0        0  143720       /home/zinface/.config/Code/User/globalStorage/tabnine.tabnine-vscode/binaries/4.4.186/x86_64-unknown-linux-musl/TabNine --client=vscode --no-lsp=true --client-metadata clientVersion=1.73.0 pluginVersion=3.6.23 t9-vscode-AutoImportEnabled=true t9-vscode-TSAutoImportEnabled=true t9-vscode-JSAutoImportEnabled=true vscode-telemetry-enabled=true vscode-remote=false vscode-remote-name=undefined vscode-extension-kind=1 vscode-theme-name=One Dark Pro vscode-theme-kind=Dark vscode-machine-id=c978ebde2bcfb69187da13850ec3f9cbbd947872615ab9494b612105210543b6 vscode-is-new-app-install=false vscode-session-id=c6e12a68-e76e-4066-80d6-92a815c74daf1669224970022 vscode-language=zh-cn vscode-app-name=Visual Studio Code vscode-beta-channel-enabled=false vscode-status-customization=unknown ide-restart-counter=0
      0       96  143773         /home/zinface/.config/Code/User/globalStorage/tabnine.tabnine-vscode/binaries/4.4.186/x86_64-unknown-linux-musl/TabNine --client=vscode --no-lsp=true --client-metadata clientVersion=1.73.0 pluginVersion=3.6.23 t9-vscode-AutoImportEnabled=true t9-vscode-TSAutoImportEnabled=true t9-vscode-JSAutoImportEnabled=true vscode-telemetry-enabled=true vscode-remote=false vscode-remote-name=undefined vscode-extension-kind=1 vscode-theme-name=One Dark Pro vscode-theme-kind=Dark vscode-machine-id=c978ebde2bcfb69187da13850ec3f9cbbd947872615ab9494b612105210543b6 vscode-is-new-app-install=false vscode-session-id=c6e12a68-e76e-4066-80d6-92a815c74daf1669224970022 vscode-language=zh-cn vscode-app-name=Visual Studio Code vscode-beta-channel-enabled=false vscode-status-customization=unknown ide-restart-counter=0 --no_bootstrap
      0       64  143923       /usr/share/code/code --ms-enable-electron-run-as-node /usr/share/code/resources/app/extensions/json-language-features/server/dist/node/jsonServerMain --node-ipc --clientProcessId=143631
  
  

• Memory 80%

  zinface@zinface-PC:~$ code --status
  [145098:1124/013945.163195:WARNING:bluez_dbus_manager.cc(248)] Floss manager not present, cannot set Floss enable/disable.
  [145133:1124/013945.292956:ERROR:vaapi_wrapper.cc(1131)] vaQuerySurfaceAttributes failed, VA error: invalid parameter
  [145133:1124/013945.293073:ERROR:vaapi_wrapper.cc(1078)] FillProfileInfo_Locked failed for va_profile VAProfileH264Main and entrypoint VAEntrypointVLD
  [145133:1124/013945.293136:ERROR:vaapi_wrapper.cc(1131)] vaQuerySurfaceAttributes failed, VA error: invalid parameter
  [145133:1124/013945.293181:ERROR:vaapi_wrapper.cc(1078)] FillProfileInfo_Locked failed for va_profile VAProfileH264High and entrypoint VAEntrypointVLD
  Version:          Code 1.73.0 (8fa188b2b301d36553cbc9ce1b0a146ccb93351f, 2022-11-01T15:44:09.336Z)
  OS Version:       Linux x64 5.15.45-amd64-desktop
  CPUs:             Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz (20 x 1400)
  Memory (System):  31.28GB (5.86GB free)
  Load (avg):       3, 2, 1
  VM:               0%
  Screen Reader:    no
  Process Argv:     --unity-launch --crash-reporter-id b18b9af0-f391-4c91-bc45-47c3cd02136c
  GPU Status:       2d_canvas:                              enabled
                  canvas_oop_rasterization:               disabled_off
                  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_renderer:                          enabled_on
                  video_decode:                           disabled_software
                  video_encode:                           disabled_software
                  vulkan:                                 disabled_off
                  webgl:                                  enabled
                  webgl2:                                 enabled
                  webgpu:                                 disabled_off
  
  CPU %   Mem MB     PID  Process
      0       96  143481  code main
      0        0  143484     zygote
      0      128  143517       gpu-process
      0        0  143525         broker
      0        0  143485     zygote
      0        0  143487       zygote
      0       32  143523     utility-network-service
      0      192  143541     window (● file_demo.dart - Visual Studio Code)
      0       96  143617     shared-process
      0       32  143655       ptyHost
      0       32  143697       fileWatcher
      0       96  143631     extensionHost
      0        0  143714       /bin/sh -c "/home/zinface/deploy/flutter-sdk/bin/cache/dart-sdk/bin/dart" "language-server" "--protocol=lsp" "--client-id=VS-Code" "--client-version=3.52.1"
      0        0  143720       /home/zinface/.config/Code/User/globalStorage/tabnine.tabnine-vscode/binaries/4.4.186/x86_64-unknown-linux-musl/TabNine --client=vscode --no-lsp=true --client-metadata clientVersion=1.73.0 pluginVersion=3.6.23 t9-vscode-AutoImportEnabled=true t9-vscode-TSAutoImportEnabled=true t9-vscode-JSAutoImportEnabled=true vscode-telemetry-enabled=true vscode-remote=false vscode-remote-name=undefined vscode-extension-kind=1 vscode-theme-name=One Dark Pro vscode-theme-kind=Dark vscode-machine-id=c978ebde2bcfb69187da13850ec3f9cbbd947872615ab9494b612105210543b6 vscode-is-new-app-install=false vscode-session-id=c6e12a68-e76e-4066-80d6-92a815c74daf1669224970022 vscode-language=zh-cn vscode-app-name=Visual Studio Code vscode-beta-channel-enabled=false vscode-status-customization=unknown ide-restart-counter=0
      0       96  143773         /home/zinface/.config/Code/User/globalStorage/tabnine.tabnine-vscode/binaries/4.4.186/x86_64-unknown-linux-musl/TabNine --client=vscode --no-lsp=true --client-metadata clientVersion=1.73.0 pluginVersion=3.6.23 t9-vscode-AutoImportEnabled=true t9-vscode-TSAutoImportEnabled=true t9-vscode-JSAutoImportEnabled=true vscode-telemetry-enabled=true vscode-remote=false vscode-remote-name=undefined vscode-extension-kind=1 vscode-theme-name=One Dark Pro vscode-theme-kind=Dark vscode-machine-id=c978ebde2bcfb69187da13850ec3f9cbbd947872615ab9494b612105210543b6 vscode-is-new-app-install=false vscode-session-id=c6e12a68-e76e-4066-80d6-92a815c74daf1669224970022 vscode-language=zh-cn vscode-app-name=Visual Studio Code vscode-beta-channel-enabled=false vscode-status-customization=unknown ide-restart-counter=0 --no_bootstrap
      0       32  143923       /usr/share/code/code --ms-enable-electron-run-as-node /usr/share/code/resources/app/extensions/json-language-features/server/dist/node/jsonServerMain --node-ipc --clientProcessId=143631
  
  

[zinface]

Above, I use machine translation to explain the problem.

I also repeated this question when I turned off all plug-ins and opened only one Dart plug-in.

[DanTup]

@zinface thanks for the detailed steps. Unfortunately I haven't been able to reproduce it (although I'm on macOS, I don't know if that's a factor).

Is it possible you can set the analyzer instrumentation log in your VS Code User Settings:

https://dartcode.org/docs/logging/#analyzer-instrumentation

"dart.analyzerInstrumentationLogFile": "/path/to/log.txt"

And then reproduce the issue, and see whether this log file is being written to as the memory usage is growing? You can attach the log or email it to me at logs@dartcode.org if it's not too big (but please reproduce this with a small sample app, because the log may contain parts of source code from the open files).

Thanks!

[zinface]

@zinface thanks for the detailed steps. Unfortunately I haven't been able to reproduce it (although I'm on macOS, I don't know if that's a factor).

Is it possible you can set the analyzer instrumentation log in your VS Code User Settings:

https://dartcode.org/docs/logging/#analyzer-instrumentation

"dart.analyzerInstrumentationLogFile": "/path/to/log.txt"

And then reproduce the issue, and see whether this log file is being written to as the memory usage is growing? You can attach the log or email it to me at logs@dartcode.org if it's not too big (but please reproduce this with a small sample app, because the log may contain parts of source code from the open files).

Thanks!

I have e-mailed the information you mentioned, along with about 2 minutes of screenshot files (reproducing the problem).

[DanTup]

@zinface thank you for the detailed video and logs! I think I see what's going on. When VS Code is opened with that unsaved file, the server tries to create a watcher for it - however the file does not exist on disk and this causes an error:

1669305711347:Err:Temporary watcher error; restarting context build.
FileSystemException:: Failed to watch path, path = '/tmp/tmp.75uS4AnOM4/file_demo/bin/file_demo.dart' (OS Error:: No such file or directory, errno = 2)

1669305711437:Err:Watcher error; refreshing contexts.
FileSystemException:: Failed to watch path, path = '/tmp/tmp.75uS4AnOM4/file_demo/bin/file_demo.dart' (OS Error:: No such file or directory, errno = 2)

1669305711439:Err:Temporary watcher error; restarting context build.
FileSystemException:: Failed to watch path, path = '/tmp/tmp.75uS4AnOM4/file_demo/bin/file_demo.dart' (OS Error:: No such file or directory, errno = 2)

This server interprets this error as something it can recover from, so it tries again. And it keeps retrying repeatedly forever.

I'm not certain why the memory usage climbs so high, but now I understand the cause I might have better luck reproducing it so I can work on a fix. Thanks!

[DanTup]

@zinface sorry for the delay. I'm working in this now but struggling to reproduce (even on Linux). The attachment links in you email have now expired - do you still have a copy you can re-send to me to logs@dartcode.org so I can understand what's different between my setup and yours? Thanks!