I noticed over the last week or so my computer is using a lot of CPU and Memory when nothing is obviously running (even after rebooting).

With only my browser open it's using 20% CPU, 4.0 GB Memory (I have 16 GB) and 2.8 GB cache.

How can I figure out what is wrong? Thanks!


LSB Version: core-2.0-amd64:core-2.0-noarch:core-3.0-amd64:core-3.0-noarch:core-3.1-amd64:core-3.1-noarch:core-3.2-amd64:core-3.2-noarch:core-4.0-amd64:core-4.0-noarch

Distributor ID: Ubuntu

Description: Ubuntu 12.04.4 LTS

Release: 12.04

Codename: precise


You can view detailed log of the processes and their resources consumption using htop.

Install it typing sudo apt-get install htop and to run it type sudo htop. That should let you know what is using your resources. Once you figure it out, try killing that process and see if that works; if that worked, uninstall that application package or replace it with equivalent.

PS: Try sudo apt-get upgrade && sudo apt-get update to upgrade your machine to latest version. That might fix many issues.


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