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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Issue of CPU usage with HiFiBerry driver snd_soc_hifiberry_amp with Debian Wheezy kernel 3.12.28"
href="https://bugs.freedesktop.org/show_bug.cgi?id=84585#c78">Comment # 78</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Issue of CPU usage with HiFiBerry driver snd_soc_hifiberry_amp with Debian Wheezy kernel 3.12.28"
href="https://bugs.freedesktop.org/show_bug.cgi?id=84585">bug 84585</a>
from <span class="vcard"><a class="email" href="mailto:alessandroferri_015@fastwebnet.it" title="Alessandro Ferri <alessandroferri_015@fastwebnet.it>"> <span class="fn">Alessandro Ferri</span></a>
</span></b>
<pre>Hi Raymond,
I have attached a series of system log. I do not know if that's what you ask of
me, possibly let me know if you have other requests
Regards.
(In reply to Raymond from <a href="show_bug.cgi?id=84585#c76">comment #76</a>)
<span class="quote">> do you mean you cannot find any alsa error messages in system log ?
>
>
> <a href="http://www.freedesktop.org/wiki/Software/PulseAudio/Notes/3.0/">http://www.freedesktop.org/wiki/Software/PulseAudio/Notes/3.0/</a>
>
> any reason to use timer scheduling
>
> if your sound card does not support disable period wakeup since the io
> thread will be wakup when hwptr at period bounary
>
> cpu won't sleep 1980 ms and wakeup 20ms before the buffer is empty</span ></pre>
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