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Phoronix Test Suite

OpenBenchmarking.org

Benchmarks Of GCC 4.5.0 Compiler Performance

Michael Larabel

Published on 19 April 2010
Written by Michael Larabel
Page 6 of 6 - 44 Comments

Again, the Bullet Physics Engine is being hurt by GCC 4.5.0.

While Bullet was negatively impacted by this new GNU Compiler Collection release, John The Ripper is showing slight gains with the new version.

There was not much change in the HMMer search results.

The Fortran-written NAS Parallel Benchmarks from NASA with the LU.A test is running significantly faster with GCC 4.5. This new compiler is causing NAS LU.A to run 15% better than the other tested GCC releases.

While the build process is taking longer under GCC 4.5.0 than it did in GCC 4.3.0/4.4.0, this is likely attributed to the expanded feature set and greater optimizations to be found in this new GNU Compiler Collection release. However, once the binaries are generated, in some tests it is causing noticeable performance benefits such as with NAS Parallel Benchmarks and C-Ray. In some areas right now though GCC 4.5.0 is producing binaries that are not running as fast as they did in GCC 4.4.0, such as with GraphicsMagick and the Bullet Physics Engine. Stay tuned though for our LLVM / Clang benchmarks to come later this week to see how it stacks up against the GNU Compiler Collection 4.5 release.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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