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AMD Llano Compiler Performance

Michael Larabel

Published on 19 August 2011
Written by Michael Larabel
Page 2 of 4 - 5 Comments

When testing the Apache web-server on the AMD Llano system, the performance between the GCC 4.6.1 and LLVM 2.9 Clang-produced binaries were close. For this core Linux server process there was not a definitive advantage to one compiler over the other at this time for Llano.

C-Ray, our favorite multi-threaded ray-tracing test, did much better with GCC than LLVM/Clang with the latest release versions of both. There were no improvements with GCC 4.6.1 over GCC 4.5.3.

When running POV-Ray, which is currently single-threaded ray-tracing, the binary produced by Clang was faster than GCC.

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