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The most interesting results to consider are those that refer to a buffer sizes exceeding 1MB, which is the size of the L2 cache. Approximately, read bandwidth is 630MB/s (7.8% efficiency), while write bandwidth is 2080 MB/s (25.7% efficiency). These numbers are significantly different that the ones provided by STREAM. This confirms once again that such results are strongly dependent on the implementation of the test used to determine the bandwidth.
For more information regarding LMbench, please see [http://lmbench.sourceforge.net/ this page].
===pmbw===
As defined by the author, <code>pmbw</code> is "a set of assembler routines to measure the parallel memory (cache and RAM) bandwidth of modern multi-core machines."It performs a myriad of tests. Luckily, it comes with a handful tool that plots the results—which are stored in a text file—in a series of charts.
For more details about <code>pmbw</code>, please refer to [https://panthema.net/2013/pmbw/ this page].
==Useful links==
*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]
Running nthreads=1 factor=3791455289 areasize=1024 thrsize=1024 testsize=1024 repeats=3702594 testvol=3791456256 testaccess=947864064
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</pre>To generate the charts plotting the results the following command was issued: ./stats2gnuplot stats.txt | gnuplot
