AM5728 Multimedia Performance Testbench: Difference between revisions

AM5728 Multimedia Performance Testbench (view source)

Revision as of 15:42, 8 June 2016

78 bytes added , 8 June 2016

→‎Memory bandwidth consumption

Dgarbanzo

1,433

edits

@@ Line 597: / Line 597: @@
 === <span style="color:#0931C6">Memory bandwidth consumption</span><br>  ===
-'''''Test pipeline (ducatimpeg2dec):'''''
+'''''Test pipeline (ducatijpegdec):'''''
 <pre style="background:#d6e4f1">
-gst-launch-1.0 filesrc location=/am5728-gst-tests/video-samples/Wreck-It_Ralph_Trailer-MPEG2.mpg ! mpegpsdemux ! queue ! mpegvideoparse ! ducatimpeg2dec ! fakesink sync=true -e
+gst-launch-1.0 filesrc location=/am5728-gst-tests/video-samples/Wreck-It_Ralph_MJPEG.mov ! qtdemux name=demux demux.video_0 ! queue ! jpegparse ! ducatijpegdec ! fakesink sync=true -e
 </pre>
-'''''Test pipeline (avdec_mpeg2video):'''''
+'''''Test pipeline (avdec_mjpeg):'''''
 <pre style="background:#d6e4f1">
-gst-launch-1.0 filesrc location=/am5728-gst-tests/video-samples/Wreck-It_Ralph_Trailer-MPEG2.mpg ! mpegpsdemux ! queue ! mpegvideoparse ! avdec_mpeg2video ! fakesink sync=true -e
+gst-launch-1.0 filesrc location=/am5728-gst-tests/video-samples/Wreck-It_Ralph_MJPEG.mov ! qtdemux name=demux demux.video_0 ! queue ! jpegparse ! avdec_mjpeg ! fakesink sync=true -e
 </pre>
@@ Line 610: / Line 610: @@
 '''''Memory bandwidth consumption by memory readings obtained results:'''''
-[[Image:AM572x-testbench-MPEG2-dec-readsbandwidth.png|center|700px|AM572x-testbench-MPEG2-dec-readbandwidth.png]]<br>
+[[Image:AM572x-testbench-JPEG-dec-readsbandwidth.png|center|700px|AM572x-testbench-JPEG-dec-readbandwidth.png]]<br>
-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 436.4 MB/s for sequential reads and 330.1 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 448.9 MB/s for sequential reads and 175.5 MB/s for aleatory reads.
 '''''Memory bandwidth consumption by memory writings obtained results:'''''
-[[Image:AM572x-testbench-MPEG2-dec-writebandwidth.png|center|700px|AM572x-testbench-MPEG2-dec-writebandwidth.png]]<br>
+[[Image:AM572x-testbench-JPEG-dec-writebandwidth.png|center|700px|AM572x-testbench-JPEG-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 1090.9 MB/s for sequential writes and 155.1 MB/s for aleatory writes.
+In the chart above, it can be seen that when using hardware acceleration, less memory bandwidth consumption by sequential memory writings is obtained, and a little more memory bandwidth is consumed by aleatory writes. The average difference is 1046.9 MB/s for sequential writes and 155.1 MB/s for aleatory writes.