Version 0.12.0 high resource usage and slow autocomplete

[DanielViberg]

Hello,

Nice job on this c-sharp server.

Since version 0.12.0 i'm seeing high cpu usage and slow auto complete:

The machine is a windows 10 64bit, running vim in powershell.
If i downgrade to version 0.11.0 the problem disappears.

[razzmatazz]

Hey @DanielViberg

Could you try backing out this commit: ada53cd and then recompile from source?

It can be either this commit (roslyn upgrade) or something else–it may be time to add option to dump request stats to stderr to find which endpoint in particular is slow.

[AbrA-K]

Have the same issue (where version 0.11.0 was a LOT faster).
I have trouble building building the lsp for testing this. dotnet build on the Project root will build it and the binary will be in <Projectroot>/src/CSharpLanguageServer/bin/Debug/net8.0/CSharpLanguageServer, correct?
(another thing: I'm using the dotnet-sdk-8.0.104 and not 8.0.200 - this should not be a big deal, right?)

[DanielViberg]

Im currenly not near my dev machine. I'll get back to you as soon as i get back!

[DmitryHudrich]

Hi, i have same problem and i compiled lsp from last commit. i just replaced roslyn version to 4.7.0, but the problem still remains so i think the problem is not roslyn.
I went back to the ada53cd commit and changed the roslyn version to the newest one. now I have c#12 support with the right performance

[DmitryHudrich]

a117ea is the commit that caused the problem. everything works fine before him.
lsp already supports the twelfth version of the language here, but I don't see any performance problems.

[razzmatazz]

a117ea is the commit that caused the problem. everything works fine before him. lsp already supports the twelfth version of the language here, but I don't see any performance problems.

Thank you for triaging this! I will investigate this further

[razzmatazz]

Should be fixed in f6ce285

I will release a new version later this week.

[j0of]

Has this issue been resolved for anyone yet? I am also having this problem but I'm unsure if the patch has already been released

[razzmatazz]

Has this issue been resolved for anyone yet? I am also having this problem but I'm unsure if the patch has already been released

I did not release a bugfix release yet -- trying to figure out if I can make it even faster by disabling autocomplete from non-imported namespaces.

[razzmatazz]

0.13.0 has been released which should fix the issue:

• https://github.com/razzmatazz/csharp-language-server/releases/tag/0.13.0