memory leak when deallocating and reallocating WhisperContext

[yousifa]

Deallocating WhisperContext (from swift) will leave memory allocated (1-10mb)

To replicate:
Call WhisperContext() and then set it to nil in the demo whisper swiftui app repeatedly. Memory will continue growing.

[chnbr]

I can confirm this. Sometimes the memory loss is up to 30MB.

[yousifa]

Yep, the amount it retains seems inconsistent and random

[ggerganov]

Thanks for reporting. I'll take a look in the next days. Let me know if you find what is the resource that leaks or the commit that caused the regression.

[yousifa]

Thanks, I'm looking into it too. This issue has existed for at least 6 months, as that was the version I was using when i first noticed it (and it still exists in the latest).