AM5728 Multimedia Performance Testbench: Difference between revisions

AM5728 Multimedia Performance Testbench (view source)

Revision as of 18:30, 7 June 2016

1,268 bytes added , 7 June 2016

→‎Memory consumption

Dgarbanzo

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 In the chart above, it can be seen that when using hardware acceleration (NEON&VFPv4 extension), no reduction is achieved in memory consumption. The average difference is 120 KB of more consumption when hardware acceleration is not used (depreciable value).
+=== <span style="color:#0931C6">Memory bandwidth consumption</span><br>  ===
+'''''Test pipeline:'''''
+<pre style="background:#d6e4f1">
+gst-launch-1.0 filesrc location=/am5728-gst-tests/audio-samples/audio_sample.raw ! audioparse ! faac ! fakesink -e
+</pre>
+Note: In both charts the memory bandwidth consumption is presented separately in sequential (seq) and aleatory (al) memory access.
+'''''Memory bandwidth consumption by memory readings obtained results:'''''
+[[Image:AM572x-testbench-AAC-readbandwidth.png|center|700px|AM572x-testbench-AAC-readbandwidth.png]]<br>
+In the chart above, it can be seen that when using hardware acceleration (NEON&VFPv4 extension), more memory bandwidth consumption by memory readings is obtained. The average difference is 213.5 MB/s for sequential reads and 64.6 MB/s for aleatory reads.
+'''''Memory bandwidth consumption by memory writings obtained results:'''''
+[[Image:AM572x-testbench-AAC-writebandwidth.png|center|700px|AM572x-testbench-AAC-writebandwidth.png]]<br>
+In the chart above, it can be seen that when using hardware acceleration (NEON&VFPv4 extension), more memory bandwidth consumption by memory writings is obtained. The average difference is 206.8 MB/s for sequential reads and 79 MB/s for aleatory reads.