How to avoid PackageKit consuming lots of CPU and RAM on Kubuntu 14.04
After upgrading my laptop from Kubuntu 12.04 LTS to 14.04 LTS, I noticed that the laptop runs hotter than usual.
Upon investigating further, I found that PackageKit was the process that was consuming lots of CPU and memory.
For example, here is a sample output from htop, showing packagekitd maxing out one core, and eating up almost a quarter of the laptop's RAM:
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