For completeness and comparability:
The Fujitsu Stick (vp7045) still by far beats the af9015
in terms of resource usage with vdr. (13% vs 19% with or
37% without hw pid filter)
It doesn't seem to hava a hw pid filter ( at least it doesn't
react to the force_pid_filter_usage option. so here are
the results with the same setup, using the same channels and
the same vdr plugins:
--------------------------- without remote, without pid filter
------------------ zap
PowerTOP version 1.10 (C) 2007 Intel Corporation
Cn Avg residency P-states (frequencies)
C0 (cpu running) ( 5.7%) 750 Mhz 0.0%
polling 0.0ms ( 0.0%) 563 Mhz 0.0%
C1 halt 0.0ms ( 0.0%) 375 Mhz 0.0%
C2 0.0ms ( 0.0%) 188 Mhz 100.0%
C3 2.0ms (94.3%)
Wakeups-from-idle per second : 473.5 interval: 10.0s
no ACPI power usage estimate available
Top causes for wakeups:
55.7% (592.2) USB device 5-1 : DVB-T 2 (Afatech)
42.9% (455.9) <interrupt> : uhci_hcd:usb1, ehci_hcd:usb5, HDA Intel
0.5% ( 5.7) zap : schedule_timeout (process_timeout)
0.2% ( 2.4) kdvb-ad-0-fe-0 : schedule_timeout (process_timeout)
0.2% ( 2.0) xfsaild : schedule_timeout (process_timeout)
0.2% ( 1.6) xfsbufd : schedule_timeout (process_timeout)
0.1% ( 1.0) zap : do_nanosleep (hrtimer_wakeup)
-------------------- vdr
PowerTOP version 1.10 (C) 2007 Intel Corporation
Cn Avg residency P-states (frequencies)
C0 (cpu running) (13.0%) 750 Mhz 0.0%
polling 0.0ms ( 0.0%) 563 Mhz 0.0%
C1 halt 0.0ms ( 0.0%) 375 Mhz 0.0%
C2 0.1ms ( 0.1%) 188 Mhz 100.0%
C3 1.5ms (86.8%)
Wakeups-from-idle per second : 611.1 interval: 10.0s
no ACPI power usage estimate available
Top causes for wakeups:
45.1% (540.5) USB device 5-1 : DVB-T 2 (Afatech)
34.9% (418.2) <interrupt> : uhci_hcd:usb1, ehci_hcd:usb5, HDA Intel
18.4% (220.8) vdr : futex_wait (hrtimer_wakeup)
--------------------------
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