Re: [orca-list] many cpu wakeups with orca

[Willie Walker <William Walker Sun COM>]

Argh.  I hate touchpads with touch-to-click enabled.  For some reason, 
this new machine I have has a very sensitive touchpad (no need to tell 
me about drivers and such -- I'm already aware).

Anyhow, the other option I was going to write about is to modify 
pyatspi's registry.py "time.sleep(1e-5)" line to a longer value such as 
"time.sleep(1e-3)".  People have reported some success with this with 
accerciser, which seems to exhibit the same issue.

Will

Willie Walker wrote:
> Hi Halim:
>
> This *might* be due to an idle handler in pyatspi.registry that manages 
> the Python GIL.  This idle handler is called on the gidle thread (when 
> the machine is supposedly idle), and looks like the following:
>
>     if gil:
>       def releaseGIL():
>         try:
>           time.sleep(1e-5)
>         except KeyboardInterrupt, e:
>           # store the exception for later
>           releaseGIL.keyboard_exception = e
>           self.stop()
>         return True
>       # make room for an exception if one occurs during the
>       releaseGIL.keyboard_exception = None
>       i = gobject.idle_add(releaseGIL)
>
> If you want to experiment, you can try a couple different things.  In 
> Orca's orca.py module, change the line "registry.start()" to 
> "registry.start(gil=False)".  Or, you can try chani
> Halim Sahin wrote:
> > Hi,
> >
> > I have checked the cpu on my laptop with powertop and found the 
> > following:
> >
> >
> > Cn                Avg residency       P-states (frequencies)
> > C0 (cpu running)        (66.3%)         1400 Mhz     0.0%
> > polling           0.0ms ( 0.0%)         1200 Mhz     0.0%
> > C1                0.1ms (33.7%)         1000 Mhz     0.0%
> > C2                0.0ms ( 0.0%)          700 Mhz     0.0%
> >                                          500 Mhz   100.0%
> >
> > Wakeups-from-idle per second : 5387.2   interval: 5.0s
> > no ACPI power usage estimate available
> >
> > Top causes for wakeups:
> >   99.6% (5429.0)            python : schedule_hrtimeout_range 
> > (hrtimer_wakeup)
> >    0.2% (  9.4)       <interrupt> : uhci_hcd:usb1, yenta, eth0, 
> > 0000:02:00.0
> >    0.2% (  8.8)       <interrupt> : pata_via
> >    0.0% (  1.0)           rt61pci : queue_delayed_work 
> > (delayed_work_timer_fn)
> >    0.0% (  1.0)     <kernel core> : neigh_table_init_no_netlink 
> > (neigh_periodic_
> >    0.0% (  0.8)   hald-addon-stor : schedule_hrtimeout_range 
> > (hrtimer_wakeup)
> >    0.0% (  0.4)       gvfsd-trash : schedule_hrtimeout_range 
> > (hrtimer_wakeup)
> >
> > This means that the cpu can't never save power and runs always with 
> > 1400 mhz.
> >
> > I have stopped all other python processes.
> >
> > Orca is 2.26.1 under ubuntu.
> > Any chance to fix this?
> > The current setup is not very usable on laptops.
> > It will discharge the batery very fast.
> > Any ideas?
> > Regards
> > Halim
> >
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