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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - Automatically disable compression for local-only"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=62188">62188</a>
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>spice-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Automatically disable compression for local-only
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>zeenix@gmail.com
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Other
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>server
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>Spice
          </td>
        </tr></table>
      <p>
        <div>
        <pre>For local-only case (client and server on the same machine), compression is
quite redundant as we can assume very high bandwidth so no need to waste CPU
time on compressing/decompressing.

In theory we should first address <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - Decouple lipsync from streaming/compression"
   href="show_bug.cgi?id=62187">bug#62187</a> but in practice (testing with
varrious OSs), I have observed that we don't really get lipsync when playing HD
videos fullscreen (pretty common scenario now a days). I suspect its because of
decoding of video/audio in the guest combined with compression and
decompression of SPICE stream on the same CPU and CPU being unable to manage
it. Before you ask my host:


CPU: Intel® Core™ i5 CPU M 540 @ 2.53GHz × 4
RAM: 8G</pre>
        </div>
      </p>
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