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Benchmarks Of GCC 4.2 Through GCC 4.7 Compilers

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  • bug77
    replied
    Since gcc 4.7 is not out yet, it's very likely performance and optimization are yet to be addressed. So this comparison may be a bit ahead of its time.

    Leave a comment:


  • Smorg
    replied
    I'd rather have seen a comparison of how well the compilers optimize rather than how features of a particular new processor becoming supported over time affects performance. Graphite was added at some point in these versions. I haven't yet seen any tests on it.

    -march implies -mtune. No need for both.

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  • oglueck
    replied
    measuring optimization potential

    This test basically measures the optimization potential that inner loops have. In other words it measures how bad the inner loop was written. If your inner loop heavily relies on the compiler figuring out how to best convert it to machine code, you should really work on it. I am looking at you, GraphicsMagic. Obviously encoder writers on the other hand have figured out this fact long ago and made their inner loop performance compiler agnostic.

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  • FireBurn
    replied
    Meaningful tests for once (except maybe ffmpeg which uses assembler for it's critical code)

    It would be interesting to bisect down the regressions in 4.7 - I was under the impression we should be seeing speed ups with 4.7 not slow downs

    Can't wait to see the same benchmarks on your Sandybridge 2630QM

    You should really consider adding flattr to your articles

    Leave a comment:


  • phoronix
    started a topic Benchmarks Of GCC 4.2 Through GCC 4.7 Compilers

    Benchmarks Of GCC 4.2 Through GCC 4.7 Compilers

    Phoronix: Benchmarks Of GCC 4.2 Through GCC 4.7 Compilers

    To see how the GCC 4.7 release is shaping up, for your viewing pleasure today are benchmarks of GCC 4.2 through a recent GCC 4.7 development snapshot. GCC 4.7 will be released next March/April with many significant changes, so here's some numbers to find out if you can expect to see any broad performance improvements. Making things more interesting, the benchmarks are being done from an AMD FX-8150 to allow you to see how the performance of this latest-generation AMD processor architecture is affected going back by GNU Compiler Collection releases long before this open-source compiler had any optimizations in place.

    Phoronix, Linux Hardware Reviews, Linux hardware benchmarks, Linux server benchmarks, Linux benchmarking, Desktop Linux, Linux performance, Open Source graphics, Linux How To, Ubuntu benchmarks, Ubuntu hardware, Phoronix Test Suite
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