On a guests (or domU or whatever) that are sharing a single CPU what bucket to jiffies go into when a guest waits for its turn on the CPU?. In /proc/stat the first line starting with "cpu" is the USER_HZ (jiffies) that the system spent in user mode, user mode with low priority (nice), system mode, and the idle task. So as time passes every jiffy must go into one of those numbers. The procps commands among other things rely on it. So if a guest wants a 100% of the cpu, but only gets 50% because another guests (of the same priority) running on the same cpu wants 100% too, where does it put the jiffies that have passed while it wanted to do something but didn't have the cpu? My guess would be idle? If thats so and you have a guest using 100% of its allocated cpu and its only getting 50% of the physical cpu programs like top will report 50% cpu utilization. Am i thinking that though correctly there? Eli Criffield -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
