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<h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Graphics Execution Manager</span></h1>
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<div id="mw-content-text" class="mw-body-content mw-content-ltr" lang="de" dir="ltr"><div class="mw-content-ltr mw-parser-output" lang="de" dir="ltr"><p>Der <b>Graphics Execution Manager (GEM)</b> ist ein Teil der <a href="Direct_Rendering_Manager" title="Direct Rendering Manager">Direct Rendering Manager</a> (DRM)-Programmierschnitstelle des <a href="Linux" title="Linux">Linux</a>-Grafikstacks, die es mehreren Programmen erlaubt, Grafikspeicher untereinander gemeinsam zu verwenden. GEM stellt die konfliktfreie Speichernutzung zwischen den Anwendungen durch Speichersynchronisation sicher.
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<div class="mw-heading mw-heading2"><h2 id="Geschichte">Geschichte</h2></div>
<p>Die Entwicklung von GEM wurde von <a href="Intel" title="Intel">Intel</a> im Mai 2008 begonnen um eine leichtere Alternative zu den <i><span lang="en">Translation Table Maps</span></i> (von Tungsten Graphics) zu schaffen.<sup id="cite_ref-LWN080612_1-0" class="reference"><a href="#cite_note-LWN080612-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Ph080618_2-0" class="reference"><a href="#cite_note-Ph080618-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>
Allerdings kollidierte Intels Ansatz mit damaligen Entwicklungszielen des <a href="X.Org-Server" title="X.Org-Server">X.Org-Server</a> (<a href="Direct_Rendering_Infrastructure" title="Direct Rendering Infrastructure">DRI2</a>, <a href="EXA_(Software)" title="EXA (Software)">EXA</a>).<sup id="cite_ref-Ph080826_3-0" class="reference"><a href="#cite_note-Ph080826-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>
Trotzdem wurde GEM in den Linux-Kernel mit Version 2.6.28 aufgenommen.
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<div class="mw-heading mw-heading2"><h2 id="Weblinks">Weblinks</h2></div>
<ul><li>Linux Dokumentation: <a rel="nofollow" class="external text" href="https://www.kernel.org/doc/htmldocs/drm/drm-memory-management.html">Memory management: Chapter 2. DRM Internals</a></li>
<li>Keith Packard: <a rel="nofollow" class="external text" href="https://keithp.com/blogs/gem_update/">Technische Erklärung</a></li></ul>
<div class="mw-heading mw-heading2"><h2 id="Einzelnachweise">Einzelnachweise</h2></div>
<ol class="references">
<li id="cite_note-LWN080612-1"><span class="mw-cite-backlink"><a href="#cite_ref-LWN080612_1-0">↑</a></span> <span class="reference-text">
<span class="cite">Michael Larabel: <a rel="nofollow" class="external text" href="https://www.phoronix.com/scan.php?page=news_item&px=NjUyMQ"><i>Intel's GEM Merging To Master.</i></a> Phoronix, 12. Juni 2008,<span class="Abrufdatum"> abgerufen am 10. Oktober 2014</span>.</span><span style="display: none;" class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2Fde.wikipedia.org%3AGraphics+Execution+Manager&rft.title=Intel%27s+GEM+Merging+To+Master&rft.description=Intel%27s+GEM+Merging+To+Master&rft.identifier=&rft.creator=Michael+Larabel&rft.publisher=%5B%5BPhoronix%5D%5D&rft.date=2008-06-12"> </span></span>
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<li id="cite_note-Ph080618-2"><span class="mw-cite-backlink"><a href="#cite_ref-Ph080618_2-0">↑</a></span> <span class="reference-text">
<span class="cite">Michael Larabel: <a rel="nofollow" class="external text" href="https://www.phoronix.com/scan.php?page=news_item&px=NjQ3Ng"><i>Intel's Graphics Execution Manager.</i></a> Phoronix, 14. Mai 2008,<span class="Abrufdatum"> abgerufen am 10. Oktober 2014</span>.</span><span style="display: none;" class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2Fde.wikipedia.org%3AGraphics+Execution+Manager&rft.title=Intel%27s+Graphics+Execution+Manager&rft.description=Intel%27s+Graphics+Execution+Manager&rft.identifier=&rft.creator=Michael+Larabel&rft.publisher=Phoronix&rft.date=2008-05-14"> </span></span>
</li>
<li id="cite_note-Ph080826-3"><span class="mw-cite-backlink"><a href="#cite_ref-Ph080826_3-0">↑</a></span> <span class="reference-text">
<span class="cite">Michael Larabel: <a rel="nofollow" class="external text" href="https://www.phoronix.com/scan.php?page=news_item&px=NjY3Ng"><i>A GEM-ified TTM Manager For Radeon.</i></a> Phoronix, 26. August 2008,<span class="Abrufdatum"> abgerufen am 10. Oktober 2014</span>.</span><span style="display: none;" class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2Fde.wikipedia.org%3AGraphics+Execution+Manager&rft.title=A+GEM-ified+TTM+Manager+For+Radeon&rft.description=A+GEM-ified+TTM+Manager+For+Radeon&rft.identifier=&rft.creator=Michael+Larabel&rft.publisher=Phoronix&rft.date=2008-08-26"> </span></span>
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