AM5728 Multimedia Performance Testbench: Difference between revisions

AM5728 Multimedia Performance Testbench (view source)

Revision as of 23:47, 7 June 2016

11 bytes removed , 7 June 2016

→‎Memory bandwidth consumption

Dgarbanzo

1,433

edits

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 === <span style="color:#0931C6">Memory bandwidth consumption</span><br>  ===
-'''''Test pipeline (ducatih264dec):'''''
+'''''Test pipeline (ducatimpeg4dec):'''''
 <pre style="background:#d6e4f1">
-gst-launch-1.0 filesrc location=/am5728-gst-tests/video-samples/Wreck-It_Ralph_H264.mp4 ! qtdemux name=demux demux.video_0 ! queue ! h264parse ! ducatih264dec ! fakesink sync=true -e
+gst-launch-1.0 filesrc location=/am5728-gst-tests/video-samples/Wreck-It_Ralph_MPEG4.mp4 ! qtdemux name=demux demux.video_0 ! queue ! mpeg4videoparse ! ducatimpeg4dec ! fakesink sync=true -e
 </pre>
-'''''Test pipeline (avdec_h264):'''''
+'''''Test pipeline (avdec_mpeg4):'''''
 <pre style="background:#d6e4f1">
-gst-launch-1.0 filesrc location=/am5728-gst-tests/video-samples/Wreck-It_Ralph_H264.mp4 ! qtdemux name=demux demux.video_0 ! queue ! h264parse ! avdec_h264 ! fakesink sync=true -e
+gst-launch-1.0 filesrc location=/am5728-gst-tests/video-samples/Wreck-It_Ralph_MPEG4.mp4 ! qtdemux name=demux demux.video_0 ! queue ! mpeg4videoparse ! avdec_mpeg4 ! fakesink sync=true -e
 </pre>
@@ Line 447: / Line 447: @@
 '''''Memory bandwidth consumption by memory readings obtained results:'''''
-[[Image:AM572x-testbench-H264-dec-readsbandwidth.png|center|700px|AM572x-testbench-H264-dec-readbandwidth.png]]<br>
+[[Image:AM572x-testbench-MPEG4-dec-readsbandwidth.png|center|700px|AM572x-testbench-MPEG4-dec-readbandwidth.png]]<br>
-In the chart above, it can be seen that when using hardware acceleration, more memory bandwidth consumption by memory readings is obtained. The average difference is 328.6 MB/s for sequential reads and 44.4 MB/s for aleatory reads.
+In the chart above, it can be seen that when using hardware acceleration, less memory bandwidth consumption by memory readings is obtained. The average difference is 185.2 MB/s for sequential reads and 214.3 MB/s for aleatory reads.
 '''''Memory bandwidth consumption by memory writings obtained results:'''''
-[[Image:AM572x-testbench-H264-dec-writebandwidth.png|center|700px|AM572x-testbench-H264-dec-writebandwidth.png]]<br>
+[[Image:AM572x-testbench-MPEG4-dec-writebandwidth.png|center|700px|AM572x-testbench-MPEG4-dec-writebandwidth.png]]<br>
-In the chart above, it can be seen that when using hardware acceleration, less memory bandwidth consumption by memory writings is obtained. The average difference is 7.9 MB/s for sequential writes and 45 MB/s for aleatory writes. Only a little optimization is achieved.
+In the chart above, it can be seen that when using hardware acceleration, less memory bandwidth consumption by memory writings is obtained. The average difference is 1313.2 MB/s for sequential writes and 157.6 MB/s for aleatory writes.