Hi Preeti, On Fri, Mar 27, 2015 at 10:03:21AM +0530, Preeti U Murthy wrote: >is set to CPU_NOT_IDLE. > >"" >idle = idle_cpu(cpu) ? CPU_IDLE : CPU_NOT_IDLE; > >And, > >When nohz_idle_balance() is called, the state of idle of ILB CPU is >checked before proceeding with load balancing on idle CPUs. > >"" > >if (idle != CPU_IDLE || > !test_bit(NOHZ_BALANCE_KICK, nohz_flags(this_cpu))) > goto end; >
This idle is the one caculated in run_rebalance_domains() before invoke rebalance_domains(), rebalance_domains() cannot modify this local variable. Regards, Wanpeng Li >You see that nohz idle balancing gets aborted. > >Regards >Preeti U Murthy > > > >> >> Regards, >> Wanpeng Li >> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
