<div dir="ltr">yes, sorry, pulseaudio<br></div><div class="gmail_extra"><br clear="all"><div>Sincerely,<br><br>Giovanni Maruzzelli<br>Cell : +39-347-2665618<br></div>
<br><br><div class="gmail_quote">On Fri, Aug 22, 2014 at 11:39 PM, Dušan Dragić <span dir="ltr"><<a href="mailto:dragic.dusan@gmail.com" target="_blank">dragic.dusan@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Giovanni,<br>
you probably meant pulseaudio instead of portaudio?<br>
<div class="HOEnZb"><div class="h5"><br>
On 22 August 2014 16:20, Giovanni Maruzzelli <<a href="mailto:gmaruzz@gmail.com">gmaruzz@gmail.com</a>> wrote:<br>
> Just to be clear: making portaudio clocking to be more efficient not only<br>
> will lower portaudio itself to use less cpu, but will lower the cpu usage of<br>
> the skype clients, and probably of freeswitch too, because there will be<br>
> less taxing on the timers at the kernel level, and so all applications will<br>
> have less contention, less blocking, etc.<br>
><br>
><br>
><br>
>> Anyway, the only way we have to lower cpu usage is to act on portaudio<br>
>> (that is used uniquely as a source of timing by skype client, eg: its reads<br>
>> and writes on portaudio are moving blank samples, just to clocking the reads<br>
>> and writes on TCP socket of the real audio packets). Portaudio uses realtime<br>
>> kernel timers from userland, and is not optimized at all for using many of<br>
>> them concurrently.<br>
>> That is the only moving wheel we can modify. We cannot modify the Skype<br>
>> client itself (unfortunately :) ).<br>
><br>
><br>
><br>
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</div><span class="HOEnZb"><font color="#888888">--<br>
Dušan Dragić<br>
</font></span><div class="HOEnZb"><div class="h5"><br>
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