The Ultimate Tweaker’s Delight
I finally got OProfile working. It profiles the system, using either a timer-based interrupt or the performance counters in the CPU itself. Cool!
Note to Pentium-class and Alpha users: If you want to use the CPU’s performance counters, you need to configure your kernel to use the APIC (under "Processor type and features"). IA64 users can use performance counters under the 2.4 kernel only.