Ringing In 2020 By Clang'ing The Linux 5.5 Kernel - Benchmarks Of GCC vs. Clang Built Kernels
Written by Michael Larabel in Software on 31 December 2019. Page 5 of 5. 17 Comments

So there are some cases particularly synthetic micro-benchmarks where there was a measurable difference in performance of building Linux 5.5 with GCC 9 or Clang 9, but for most of the real-world workloads the results were comparable.

If taking the geometric mean of the dozens of tests carried out, it averages out to basically being a tie.

Those wanting to dig through all these benchmarks in full can be found via this OpenBenchmarking.org result file.

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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.


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