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SBCX-TN-006: Characterizing the RAM bandwidth of Axel Lite SoM

697 bytes added, 09:01, 27 January 2020
→‎Running the tests and results
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Please see [https://www.cs.virginia.edu/stream/ this page] for more details about STREAM benchmark.
 
===LMbench===
TBDFor what regards the memory bandwidth, LMbench provides many results organized in different categories. For the sake of simplicity, the following tables details just a couple of categories. The full results are available for download [http://mirror.dave.eu/axel/SBCX-TN-006/lmbench-axellite-i.MX6Q-996MHz.txt here]. {| class="wikitable"|+Memory read bandwidth!Buffer size!Bandwitdth[MB/s]|-|512B|2861|-|||-|||}Memory read bandwidth 0.000512 2861.08 0.001024 3047.29 0.002048 3065.48 0.004096 3077.39 0.008192 3081.92 0.016384 3072.19 0.032768 1309.99 0.065536 902.31 0.131072 786.99 0.262144 775.72 0.524288 749.92 1.05 687.59 2.10 642.81 4.19 629.78 8.39 630.25 16.78 632.72 33.55 631.65 67.11 632.97 134.22 633.67 268.44 634.16 536.87 634.60
The full results are available for download [http://mirror1073.dave.eu/axel/SBCX-TN-006/lmbench-axellite-i.MX6Q-996MHz.txt here]74 633.61
For more information regarding LMbench, please see [http://lmbench.sourceforge.net/ this page].
*http://mirror.dave.eu/axel/SBCX-TN-006/pmbw-plots-AxelLite-i.MX6Q-996MHz.pdf
==Useful links==
*[https://www.cs.virginia.edu/stream/ STREAM benchmark]
*
*Joshua Wyatt Smith and Andrew Hamilton, [http://inspirehep.net/record/1424637/files/1719033_626-630.pdf Parallel benchmarks for ARM processors in the highenergy context]
*T Wrigley, G Harmsen and B Mellado, [http://inspirehep.net/record/1424631/files/1719033_275-280.pdf Memory performance of ARM processors and itsrelevance to High Energy Physics]
</syntaxhighlight>
====Running the tests and results====
<pre class="board-terminal">
armbian@sbcx:~/devel/stream/STREAM$ ./stream_c.exe
U0001
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