devsense.php.ls consumes too much RAM

[zarulizham]

There are two processes with devsense.php.ls consume 10GB+ RAM.

I have quit VS Code, but the processes still there. I have to Force Quit from Activity Monitor. Normal Quit did not release the processes.

Thank you.

[jakubmisek]

Thank you @zarulizham for reporting the issue.

This is definitely a bug. Is the CPU usage high as well?

(VS Code creates one process for each of your workspaces, so two processes are expected when you open two workspaces).

[jakubmisek]

@zarulizham May I ask what version you have installed?

We have a pre-release, which fixes several memory issues if you want to try it (https://docs.devsense.com/en/vscode/installation#pre-release-installation).

[jakubmisek]

There is an update v1.35.13322 which improves that. We'd appreciate any feedback.

We'll keep improving RAM in the next updates.

[jakubmisek]

The latest release fixes the issue with the process not being terminated.

[jakubmisek]

Found the real memory leak, preparing an update today.

[chielteuben]

Tested various versions including pre-release, this issue still exists. It's even worse running multiple instances of VS Code.
I currently have 1 small project trying to eat up 8GB of memory for the php.ls process alone.
It has gotten to the point where a disk monitoring utility (company laptop) has started reporting (incorrect) SMART errors for my drive during VS Code usage with this extension enabled, which is quite hilarious.

If I could provide any information that would help you improve/fix this I'd be happy to help.

[jakubmisek]

@chielteuben thank you for letting us know! I appreciate your help.

This is definitely a bug. The expected RAM usage for larger projects is about 500MB now (and we're going to cut this to half soon).

• How soon after opening VSCode does it get to 8GB?
• Do you use composer.json, so we could take a look on the packages you use?

Thank you!

[chielteuben]

I can replicate this behaviour instantly after opening the project.
In this specific case I'm hovering a function within a test file:
expect($result)->toBeTrue();

This will properly display any related information instantly, devsense.php.ls being at ~ 350MB.
I then change toBeTrue to toBeFalse (which exists), and hover it again. The "loading..." notification is shown and the devsense.php.ls process spikes to 8GB.
The weird thing is, toBeFalse is already being used elsewhere in the same file and can be properly hovered prior to this without causing the same issue. For the record: this also happens with other functions being hovered after being changed.

I can share the composer.json this monday but I can tell you what's in it from memory because it's a brand new project, it's the base Laravel 10 default composer.json with only "pestphp/pest" added.
And even though I doubt it's relevant: the default namespace for the project was changed using php artisan app:name NewNamespace (in case you want to 1:1 replicate this scenario).

[jakubmisek]

@chielteuben awesome! I'll try to repro the issue within a day or two - if it happens to me as well, it should be easy to fix.

Thank you!

[jakubmisek]

@chielteuben thank you again, we've successfully reproduced the issue and fixed this one. Most probably, it's been causing RAM and CPU issues for all the users here.

We'll be preparing update within a few hours.

[jakubmisek]

Please try the latest 1.37.13534 and let me know. I appreciate your help with this - we've been trying to find the issue for months!

[chielteuben]

I've just tested the latest version and the issue is solved!
I've also tested a larger project which uses the php.workspace.includePath setting to include 3 other large projects and the process sits at a (for me) respectable ~1600MB memory usage, where before VSCode was nearly unusable in that workspace when the extension was enabled.

[jakubmisek]

@chielteuben thank you very much for testing it so quickly.

I'm happy it works for you. We'll keep improving the RAM usage in the upcoming updates.

If there would be anything else weird, please let me know.