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GCC 4.8.2 vs. GCC 4.9.0 Benchmarks On Intel's Core i7 Haswell

Compiler

Published on 30 March 2014 03:00 PM EDT
Written by Michael Larabel in Compiler
8 Comments

With GCC 4.9 likely being released in the next few weeks, here are some benchmarks comparing the GCC 4.8.2 stable release against the latest GCC 4.9 snapshot.

GCC 4.9 is gearing up for a release likely in April so I spent part of Sunday morning running some fresh benchmarks of GCC 4.8.2. vs. GCC 4.9.0 20140323 on an Ubuntu 14.04 LTS system running Linux 3.13 x86_64. Both of the GNU Compiler Collections were built from source in the same configuration. The CFLAGS/CXXFLAGS remained the same during the testing.

All of the system details and results from this weekend GCC 4.9 compiler benchmarking can be found on OpenBenchmarking.org via 1403300-PL-GCC49LATE47. Testing happened from a Core i7 4770K "Haswell" system with the latest version of the Phoronix Test Suite.

Overall, there isn't too much to gain out of GCC 4.9 performance wise for the resulting binaries on the Core i7 Haswell platform for our common C/C++ benchmarks.

While there wasn't much change to see over GCC 4.9.2 for these benchmarks on the latest-generation Intel platform with Ubuntu Linux, GCC 4.9 has many new features and improvements. See the rest of the compiler benchmarks.

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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