* Mike Galbraith | 2016-01-01 08:19:41 [+0100]: >> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND >> 3 root -2 0 0 0 0 S 37.3 0.0 307:52.44 ksoftirqd/0 >> 32 root -2 0 0 0 0 S 37.3 0.0 308:08.72 ksoftirqd/2 >> 42 root -2 0 0 0 0 R 37.3 0.0 308:32.84 ksoftirqd/3 >> 22 root -2 0 0 0 0 S 26.9 0.0 222:29.82 ksoftirqd/1 >> 1 root 20 0 46628 6980 4976 S 1.3 0.2 0:13.98 systemd >> 22358 williams 20 0 159980 4552 3780 R 1.0 0.1 0:00.39 top > >Heh, I didn't notice immediately because I throttle nohz, am seeing >only tiny utilization (but nohz idle isn't working). With throttle >patch removed, box is screaming, expires=4294990471 pokes eyeball. This is due to NO_HZ as far as I can tell. My AMD A10 in idle mode has 0.7% utilisation of ksoftirqd/ with CONFIG_HZ_PERIODIC and with CONFIG_NO_HZ_FULL it shows about 25% on all CPU threads. Sebastian -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
