High memory usage in KDE 4.9

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http://chakra-project.org – I installed claire x86_64 version upon reading the news that 686 support would be dropped in the near future.Finding the memory usage to be exceptionally high, always hovering around 700-800mb with just firefox running (around 1-3 tabs open). I've read x86_64 consumes more memory than 686, but is this normal?I've turned off all desktop effects/animations, strigi/akonadi and other memory hogging services are disabled. Though the high usage is not affecting kde in any way, it has been working effortlessly until now without any crashes or so.Not trying to find fault with this distro or (HowTos)