Re: Fedora 9 with poor performance
You should examine why the performance is so low before you try the "shotgun" approach of thoughtlessly upgrading.
What does "top" show ?
What is happening wrt disk accesses and performance ?
Does "free" report you are using swap space ?
The system you describe should have decent performance so either ... something isloading the CPU, disk access is horrible, or memory is overloaded. I suppose you might be getting a rude number of interrupts from something (try powertop).
Diagnose before you treat.
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