GCC vs. Clang Compiler Performance On NVIDIA Xavier's Carmel ARMv8 Cores

2019-Jan-14 | Tags: benchmarkdevelopmentnvidiaubuntuversus

Linux on ARMSince receiving the powerful NVIDIA Jetson AGX Xavier with its ARMv8 Carmel cores on this Tegra194 SoC a while back, it's been quite a fun developer board for benchmarking and various Linux tests. One of the areas I was curious about was whether GCC or Clang would generate faster code for this high performance ARM SoC, so here are some benchmarks.

This CPU compiler benchmarking was done with the NVIDIA Jetson AGX Xavier while running the Ubuntu 18.04 LTS default L4T file-system and comparing the default GCC 7.3.0 against LLVM Clang 6.0 compiler options as officially supported by Ubuntu LTS Bionic Beaver. These are also the compiler versions supported by NVIDIA with their Tegra software on this Linux 4 Tegra sample file-system...

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Linux on ARM