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) -------------------------- _______________________________________________ vdr mailing list vdr@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr