From: http://sourceware.org/systemtap/wiki/WSKernelProfile # stap pf2.stp --- 109 samples recorded: mwait_idle 71 check_poison_obj 4 _spin_unlock_irqrestore 2 dbg_redzone1 1 kfree 1 kmem_cache_free 1 _spin_unlock_irq 1 end_buffer_write_sync 1 lock_acquire 1 --- 108 samples recorded: mwait_idle 91 check_poison_obj 3 _spin_unlock_irq 2 delay_tsc 1