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Thread: 11-Way Intel Ivy Bridge Compiler Comparison

  1. #1
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    Default 11-Way Intel Ivy Bridge Compiler Comparison

    Phoronix: 11-Way Intel Ivy Bridge Compiler Comparison

    From an Intel Core i7 3770K "Ivy Bridge" system here is an 11-way compiler comparison to look at the performance of these popular code compilers on the latest-generation Intel hardware. Among the compilers being compared on Intel's Ivy Bridge platform are multiple releases of GCC, LLVM/Clang, DragonEgg, PathScale EKOPath, and Open64.

    http://www.phoronix.com/vr.php?view=17399

  2. #2
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    Thanks for this article. Nice comparison and the summary was spot on and not biased towards LLVM, which is great to see.

  3. #3
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    Indeed nice article. Any chance of also testing the intel c/c++ compiler?

  4. #4
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    Quote Originally Posted by Wilfred View Post
    Indeed nice article. Any chance of also testing the intel c/c++ compiler?
    If this happens, include some AMD CPUs in the testing for reference..

  5. #5

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    Quote Originally Posted by Wilfred View Post
    Indeed nice article. Any chance of also testing the intel c/c++ compiler?

    No, I don't have a license and I believe they have some publishing restrictions on it...

  6. #6
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    Default Throw in PCC?

    Throw in Portable C Compiler (PCC) ?

  7. #7
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    Quote Originally Posted by Michael View Post
    No, I don't have a license and I believe they have some publishing restrictions on it...
    Ah, pity, but thanks for the answer. I keep hearing stories that supposedly the intel compiler is 20 to 30% faster than gcc.

  8. #8
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    Quote Originally Posted by Wilfred View Post
    Ah, pity, but thanks for the answer. I keep hearing stories that supposedly the intel compiler is 20 to 30% faster than gcc.
    Only on Intel, remember.

  9. #9
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    Quote Originally Posted by curaga View Post
    Only on Intel, remember.
    Well obviously not on sparc or arm or so. But it would be interesting to see if the generated binaries would also be faster on AMD hardware.

  10. #10
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    So, when are we finally going to see some PGO benchmarks? On some hardware due to PGO you can get ridiculously high speedups; Michael, why are you consistently ignoring this great (and free!) optimization?

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