4. Impact on the binary performance

Using GCC version 4.4 with SSSE3 instruction set enabled (if supported by the CPU) may yield up to 10% average increase in binary performance. In certain tests, the results show more than a 20% performance boost (e.g. in multimedia processing).

The table located at http://people.freebsd.org/~mm/benchmarks/perlbench/ shows a comparison of GCC versions currently available in base FreeBSD system, GCC version 4.3 and GCC version 4.4 with various combinations of CFLAGS using the perlbench benchmark suite.

All FreeBSD documents are available for download at http://ftp.FreeBSD.org/pub/FreeBSD/doc/

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