AM5728 Multimedia Performance Testbench: Difference between revisions

AM5728 Multimedia Performance Testbench (view source)

Revision as of 15:57, 8 June 2016

292 bytes added , 8 June 2016

→‎CPU load % per core

Dgarbanzo

1,433

edits

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 === <span style="color:#0931C6">CPU load % per core</span><br>  ===
-'''''Test pipeline (ducatijpegdec):'''''
+'''''Test pipeline (vpe):'''''
 <pre style="background:#d6e4f1">
-GST_TRACER_PLUGINS="cpuusage" gst-launch-1.0 filesrc location=/am5728-gst-tests/video-samples/TearOfSteel-Short-1920x800-MJPEG.mov ! qtdemux name=demux demux.video_0 ! queue ! jpegparse ! ducatijpegdec ! fakesink sync=true -e
+GST_TRACER_PLUGINS="cpuusage" gst-launch-1.0 -e videotestsrc num-buffers=640 is-live=true ! 'video/x-raw,format=(string)YUY2,width=320,height=240,framerate=(fraction)30/1' ! vpe ! 'video/x-raw, format=(string)NV12, width=(int)1280, height=(int)1024' ! fakesink sync=true
 </pre>
-'''''Test pipeline (avdec_mjpeg):'''''
+'''''Test pipeline (videoscale and videoconvert):'''''
 <pre style="background:#d6e4f1">
-GST_TRACER_PLUGINS="cpuusage" gst-launch-1.0 filesrc location=/am5728-gst-tests/video-samples/TearOfSteel-Short-1920x800-MJPEG.mov ! qtdemux name=demux demux.video_0 ! queue ! jpegparse ! avdec_mjpeg ! fakesink sync=true -e
+GST_TRACER_PLUGINS="cpuusage" gst-launch-1.0 -e videotestsrc num-buffers=525 is-live=true ! 'video/x-raw,format=(string)YUY2,width=320,height=240,framerate=(fraction)30/1' ! videoscale ! 'video/x-raw, format=(string)YUY2, width=(int)1280, height=(int)1024' ! videoconvert ! 'video/x-raw, format=(string)NV12, width=(int)1280, height=(int)1024' ! fakesink sync=true
 </pre>
 '''''Obtained Results:'''''
-[[Image:AM572x-testbench-JPEG-dec-cpuload.png|center|700px|AM572x-testbench-JPEG-dec-cpuload.png]]<br>
+[[Image:AM572x-testbench-VPE-cpuload.png|center|700px|AM572x-testbench-VPE-cpuload.png]]<br>
-In the chart above, is clearly shown that when using hardware acceleration, a big reduction in CPU workload is achieved. The average difference between CPU_1_accel and CPU_1_unaccel is 42.8% less load for CPU_1_accel. In both cases the corresponding  CPU_0 core is practically off, and there is no difference between them.
+In the chart above, is clearly shown that when using hardware acceleration, an enormous reduction in CPU workload is achieved. The average difference between CPU_0_accel and CPU_1_unaccel is 80.7% less load for CPU_0_accel. The average difference between CPU_1_accel and CPU_0_unaccel is 1.3% more load for CPU_1_accel, but this value is negligible in comparison with the 80.7% of cpu workload reduction achieved in the other cores.
 === <span style="color:#0931C6">Frame-rate</span><br>  ===