High CPU usage about php-parameter-hint

[robertgr991]

Thanks for the info, I'll look into it. It's strange that I know 3 similar extensions and all of them have an issue with CPU usage.

[robertgr991]

@machadomatt So it seems that js-coroutines package was causing the high CPU usage, it's strange that just by importing it, the CPU went to 30%, without using anything from the module. Can you confirm that the last version 0.5.1 doesn't have this problem?

[robertgr991]

Hi @machadomatt ,

I will look into it these days, in order to narrow it down, please answer the following:

• Is this problem only with the latest version or did you encounter this since you first installed the extension?
• Does the CPU still goes to 50% and than to 30% if the PHP file that you open has very few possible arguments hints? Or it seems to be independent of the number of possible arguments hints?
• Can you do the same steps but with the extension disabled by command(CTRL + K H) and see if the CPU still goes up? Basically the extension is still active but won't try to hint anything.
• Are you using the default settings?

Some methods are still called even if the current active file is not a PHP file and even if you close all PHP files, but it's basically only some if's, the actual hinting is not happening because there is a check for PHP file. This is the expected behaviour.

The CPU usage is clearly abnormal.

[machadomatt]

• Is this problem only with the latest version or did you encounter this since you first installed the extension?

I can't remember exactly if it was happening when I first install but I noticed it about 2 months ago.

• Does the CPU still goes to 50% and than to 30% if the PHP file that you open has very few possible arguments hints? Or it seems to be independent of the number of possible arguments hints?

It's independent, tried an one file project with one function and one argument, the CPU usage was the same for a large file with dozens of arguments hints.

• Can you do the same steps but with the extension disabled by command(CTRL + K H) and see if the CPU still goes up? Basically the extension is still active but won't try to hint anything.

Even disabling with the CTRL + K H shortcut the CPU usage is still the same as if it was enabled.

• Are you using the default settings?

I am using "phpParameterHint.onSave": false and "phpParameterHint.onChange": true. Disabling them doesn't change the CPU usage.

PS: I did all steps with 0.3.4, 0.4.1 and 0.5.0 versions.

[machadomatt]

Nice! Everything looks good, tested large files and after file processing the CPU usage goes down to 2%, as expected.

Thank you!!

[robertgr991]

Great! Thanks for pointing this issue out.