There have been times when I wished that I could limit the cpu usage of a process even though it might run slower , There is a simple way to do it on Linux .
Just type the following in terminal.
cd /tmp wget 'http://downloads.sourceforge.net/cpulimit/cpulimit-1.1.tar.gz' tar -zxvf cpulimit-1.1.tar.gz cd cpulimit-1.1 make cp cpulimit /usr/local/sbin/ rm -rf cpulimit*
If you are a debain/Ubuntu user you can also do the following in terminal.
$ sudo apt-get install cpulimit
After installation to limit the cpu usage of a process :
cpulimit -p -l
Happy cpu reduction !!