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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - do zero-copy in gstreamer for decoding"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=100097">100097</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>do zero-copy in gstreamer for decoding
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>Spice
          </td>
        </tr>

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

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

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

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

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

        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>RFE (general)
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>bugzilla@victortoso.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=130109" name="attach_130109" title="massif on mjpeg stream">attachment 130109</a> <a href="attachment.cgi?id=130109&action=edit" title="massif on mjpeg stream">[details]</a></span>
massif on mjpeg stream

I did a quick test doing streaming with mjpeg and vp8 to compare the memory
usage in the client. In this test I played a ~2 min video in the guest in
maximized window.

With mjpeg we have a peak of 34.13 MB which is somewhat fine.

With vp8 we got a peak of 205.6 MB, mostly around gstreamer code.

For now, I can see two ways to improve the code:

1-) Having some memory pool in spice-channel to avoid malloc for each new
message. In the code itself we already have a FIXME for that, saying:

<span class="quote">> /* FIXME: do not allow others to take ref on in, and use realloc here?
>  * this would avoid malloc/free on each message?</span >

2-) Doing zero-copy with gstreamer, like we do in server for encoding.

Attaching massif data for future reference</pre>
        </div>
      </p>


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