Reading performance counters for Intel Xeon in userspace

I want to read performance counters for intel xeon using a shell script in userspace. Oprofile will not work as it is too rigid to fu开发者_如何学Clfill my requirements. I am using FC13. Thanks

Perf will allow you to select which counters you want and also has the ability to output in machine readable form. https://perf.wiki.kernel.org/index.php/Main_Page