Just to complete the picture, here's the powertop output while recording.
Don't start cheering about less wakeups per second (1300 vs 2700).
There's less wakups per second as the system doesn't get into idle mode
as often, in the first place.
-henrik
PowerTOP version 1.10 (C) 2007 Intel Corporation
Cn Avg residency P-states (frequencies)
C0 (cpu running) (64.8%) 1500 Mhz 7.2%
polling 0.0ms ( 0.0%) 563 Mhz 0.0%
C1 halt 0.0ms ( 0.0%) 375 Mhz 7.2%
C2 0.4ms (15.5%) 188 Mhz 85.6%
C3 0.2ms (19.6%)
Wakeups-from-idle per second : 1317.2 interval: 10.0s
no ACPI power usage estimate available
Top causes for wakeups:
60.2% (4542.7) USB device 5-1 : DVB-T 2 (Afatech)
38.4% (2898.3) <interrupt> : uhci_hcd:usb1, ehci_hcd:usb5, HDA Intel
0.7% ( 52.9) vdr-kbd : futex_wait (hrtimer_wakeup)
0.2% ( 12.8) <interrupt> : rtc0
0.2% ( 12.4) <interrupt> : uhci_hcd:usb3, eth0
0.0% ( 3.4) vdr-kbd : hrtick_set (hrtick)
0.0% ( 3.2) mpd : hrtick_set (hrtick)
0.0% ( 3.1) <interrupt> : uhci_hcd:usb4, sata_sil24
0.0% ( 3.0) <kernel core> : sk_reset_timer (tcp_delack_timer)
0.0% ( 2.0) mpd : sk_reset_timer (tcp_write_timer)
0.0% ( 2.0) xfsaild : schedule_timeout (process_timeout)
0.0% ( 1.6) xfsbufd : schedule_timeout (process_timeout)
0.0% ( 1.1) vdr-kbd : schedule_timeout (process_timeout)
0.0% ( 1.1) vdr-kbd : blk_plug_device (blk_unplug_timeout)
0.0% ( 1.0) ifconfig : b44_open (b44_timer)
0.0% ( 1.0) klogd : ehci_work (ehci_watchdog)
0.0% ( 0.9) kdvb-ad-0-fe-0 : schedule_timeout (process_timeout)
0.0% ( 0.5) <kernel core> : schedule_delayed_work_on (delayed_work_timer_fn)
0.0% ( 0.3) <kernel module> : neigh_table_init_no_netlink (neigh_periodic_timer)
0.0% ( 0.2) chronyd : schedule_timeout (process_timeout)
0.0% ( 0.2) <kernel core> : inet_twsk_schedule (inet_twdr_hangman)
0.0% ( 0.2) runsvdir : schedule_timeout (process_timeout)
0.0% ( 0.2) init : schedule_timeout (process_timeout)
0.0% ( 0.2) <kernel core> : __netdev_watchdog_up (dev_watchdog)
0.0% ( 0.2) <kernel core> : neigh_table_init_no_netlink (neigh_periodic_timer)
0.0% ( 0.1) chronyd : do_adjtimex (sync_cmos_clock)
0.0% ( 0.1) xfssyncd : schedule_timeout (process_timeout)
0.0% ( 0.1) nmbd : schedule_timeout (process_timeout)
0.0% ( 0.1) screen : do_setitimer (it_real_fn)
0.0% ( 0.1) <kernel core> : neigh_add_timer (neigh_timer_handler)
0.0% ( 0.1) mpd : blk_plug_device (blk_unplug_timeout)
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