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<base href="https://bugs.freedesktop.org/" />
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<th>Priority</th>
<td>medium
</td>
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<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - High cpu useage when running Skype"
href="https://bugs.freedesktop.org/show_bug.cgi?id=81288">81288</a>
</td>
</tr>
<tr>
<th>CC</th>
<td>lennart@poettering.net
</td>
</tr>
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<th>Assignee</th>
<td>pulseaudio-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>High cpu useage when running Skype
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>pulseaudio-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
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<th>Reporter</th>
<td>linuxhippy@gmail.com
</td>
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<th>Hardware</th>
<td>x86 (IA32)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
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<th>Component</th>
<td>core
</td>
</tr>
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<th>Product</th>
<td>PulseAudio
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=102690" name="attach_102690" title="sysprof screenshot of system-wide profile run">attachment 102690</a> <a href="attachment.cgi?id=102690&action=edit" title="sysprof screenshot of system-wide profile run">[details]</a></span>
sysprof screenshot of system-wide profile run
Running skype on my mother's old Pentium-4 based laptop, I noticed pulseaudio
consumes a fairly high share of CPU ressources.
As can be seen in the attached sysprof-screenshot, pulseaudio consumes almost
half the cycles skype does. However this was a video-call - so skype was not
only de- and encoding audio, but also video. Furthermore, pulseaudio consumed
almost 3 times the CPU cycles of Xorg required to push the video pixels to the
display.
System:
- Pentium 4, 2.6ghz
- Fedora 20 + latest updates
- pulseaudio-4.0-13.gitf81e3.fc20.i686
I've seen similar behaviour on my modern (sandy bridge core-i7) x86_64 laptop,
where pulseaudio consumes as much CPU cycles just playing sound as mplayer
needs to decode and display/output video and audio.</pre>
</div>
</p>
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