On Fri, 9 Apr 2010, Éric Piel wrote: > > This is reported to create 20% CPU usage increase (and proportionaly higher > > power consumption) just for the ipolldevd kernel thread (which is used > > to read the sensor). > > > > As most users probably only use the freefall functionality of the driver > > and not the joystick interface, provide means for disabling the registration > > of joystick device altogether via module parameter. > > (I'd rather make it default to 0, but this will break backwards compatibility). > Are you saying there is a 20% CPU usage even when the joystick interface > is not open? This should not happen (and this is not happening on my > laptop). The polling should happen only when a userspace app opens the > joystick interface (like running neverball). > > So I'd tend to think it's more due to a misconfiguration of the system > (like xserver using the joystick interface as a pointer device) or it's > a bug in the way we set up the polling. Could you investigate and let me > know? Marcin originally reported this to me. Marcin, could you please check 'lsof' output to see whether the joystick interface has been open by some application? Thanks, -- Jiri Kosina SUSE Labs, Novell Inc. _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
