Arch Linux KDE, why KDE processes memories increased after closing softwares?

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See Why Arch Linux KDE still uses RAM after closing? / Applications & Desktop Environments / Arch Linux Forums .

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Hi Jebez.

You do not need to worry about cache. Indeed 2gb of cache is great. It means your files are in memory. If it fills to 16gb, then thats great too.

You can consider it free memory.