# Benchmarking Revolution R Open on Linux

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We recently shared some benchmarks for Revolution R Open on the Windows platform, which showed significant improvements compared to R downloaded from CRAN. Those performance gains mainly come from multi-threading: Revolution R Open is linked to the Intel Math Kernel Library, which uses all available cores (rather than just one core) to compute matrix and vector operations in parallel.

The standard R build on Macs is already linked to a multithreaded math library, and if you build R yourself on Linux you can always link it to one. So it was interesting to see that Domino Data Labs benchmarked Revolution R Open against their stock build of R (already linked to a multithreaded library) and still found improved performance improvements: 30% faster on a single-core machine and 40% faster on a 4-core machine:

The Intel MKL is quite impressive in this regard: not only does it perform computations in parallel, but it also uses highly optimized algorithms and even optimizations at the machine-code level (pipelining operations). You can get those optimizations in Revolution R Open on all platforms, without changing a single line of R code.

Domino Data Lab blog: 40-percent faster R without any code changes

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