KDE4 power consumption issues

[Olivier Goffart]

Le lundi 12 novembre 2007, Matthias Kretz a écrit :
> On Sunday 11 November 2007, Olivier Goffart wrote:
> > My guess is the problem is in Phonon.
>
> to be more precise: in libxine. libphonon itself has no timers that I can
> think of right now.
>
> > The only thing I do is to keep a pointer to Phonon::MediaObject and
> > Phonon::AudioOutput
>
> Yes. Deleting those objects might help, but I'm not 100% sure. Though the
> numbers will only go down 10s later (if at all) for reasons you don't want
> to know.

Should we workaround that problem in KNotify or in Phonon or try to  get it 
fixed in libxine ?



>
> Btw, I've seen worse numbers from xine. But basically the problem is that
> its demuxer, decoder, and output threads are in a loop calling
>   xine_usec_sleep (5000);
> whenever no new data is available. xine_usec_sleep uses nanosleep when
> available and usleep otherwise:
> #if HAVE_NANOSLEEP
>   /* nanosleep is prefered on solaris, because it's mt-safe */
>   struct timespec ts, remaining;
>
>   ts.tv_sec =   usec / 1000000;
>   ts.tv_nsec = (usec % 1000000) * 1000;
>   while (nanosleep (&ts, &remaining) == -1 && errno == EINTR)
>     ts = remaining;
> #else
> #  if WIN32
>   Sleep(usec / 1000);
> #  else
>   usleep(usec);
> #  endif
> #endif


-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 189 bytes
Desc: This is a digitally signed message part.
URL: <http://mail.kde.org/pipermail/kde-core-devel/attachments/20071112/9cf1cad9/attachment.sig>