| <html> |
| <head> |
| <meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> |
| <title>Comparing Compilers</title> |
| <link rel="stylesheet" href="../../../../../../../doc/src/boostbook.css" type="text/css"> |
| <meta name="generator" content="DocBook XSL Stylesheets V1.74.0"> |
| <link rel="home" href="../../index.html" title="Math Toolkit"> |
| <link rel="up" href="../perf.html" title="Performance"> |
| <link rel="prev" href="getting_best.html" title="Getting the Best Performance from this Library"> |
| <link rel="next" href="tuning.html" title="Performance Tuning Macros"> |
| </head> |
| <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> |
| <table cellpadding="2" width="100%"><tr> |
| <td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../../boost.png"></td> |
| <td align="center"><a href="../../../../../../../index.html">Home</a></td> |
| <td align="center"><a href="../../../../../../../libs/libraries.htm">Libraries</a></td> |
| <td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> |
| <td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> |
| <td align="center"><a href="../../../../../../../more/index.htm">More</a></td> |
| </tr></table> |
| <hr> |
| <div class="spirit-nav"> |
| <a accesskey="p" href="getting_best.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../perf.html"><img src="../../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="tuning.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a> |
| </div> |
| <div class="section" lang="en"> |
| <div class="titlepage"><div><div><h3 class="title"> |
| <a name="math_toolkit.perf.comp_compilers"></a><a class="link" href="comp_compilers.html" title="Comparing Compilers"> Comparing Compilers</a> |
| </h3></div></div></div> |
| <p> |
| After a good choice of build settings the next most important thing you can |
| do, is choose your compiler - and the standard C library it sits on top of |
| - very carefully. GCC-3.x in particular has been found to be particularly |
| bad at inlining code, and performing the kinds of high level transformations |
| that good C++ performance demands (thankfully GCC-4.x is somewhat better |
| in this respect). |
| </p> |
| <div class="table"> |
| <a name="math_toolkit.perf.comp_compilers.performance_comparison_of_various_windows_compilers"></a><p class="title"><b>Table 48. Performance Comparison of Various Windows Compilers</b></p> |
| <div class="table-contents"><table class="table" summary="Performance Comparison of Various Windows Compilers"> |
| <colgroup> |
| <col> |
| <col> |
| <col> |
| <col> |
| </colgroup> |
| <thead><tr> |
| <th> |
| <p> |
| Function |
| </p> |
| </th> |
| <th> |
| <p> |
| Intel C++ 10.0 |
| </p> |
| <p> |
| ( /Ox /Qipo /QxN ) |
| </p> |
| </th> |
| <th> |
| <p> |
| Microsoft Visual C++ 8.0 |
| </p> |
| <p> |
| ( /Ox /arch:SSE2 ) |
| </p> |
| </th> |
| <th> |
| <p> |
| Cygwin G++ 3.4 |
| </p> |
| <p> |
| ( /O3 ) |
| </p> |
| </th> |
| </tr></thead> |
| <tbody> |
| <tr> |
| <td> |
| <p> |
| <a class="link" href="../special/sf_erf/error_function.html" title="Error Functions">erf</a> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| <p><span class="bold"><strong>1.00</strong></span></p> |
| <p> </p> |
| <p>(4.118e-008s)</p> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| <p><span class="bold"><strong>1.00</strong></span></p> |
| <p> </p> |
| <p>(1.483e-007s)</p> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| <p>3.24</p> |
| <p> </p> |
| <p>(1.336e-007s)</p> |
| <p> |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <a class="link" href="../special/sf_erf/error_inv.html" title="Error Function Inverses">erf_inv</a> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| <p><span class="bold"><strong>1.00</strong></span></p> |
| <p> </p> |
| <p>(4.439e-008s)</p> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| <p><span class="bold"><strong>1.00</strong></span></p> |
| <p> </p> |
| <p>(4.888e-007s)</p> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| <p>7.88</p> |
| <p> </p> |
| <p>(3.500e-007s)</p> |
| <p> |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <a class="link" href="../special/sf_beta/ibeta_function.html" title="Incomplete Beta Functions">ibeta</a> |
| and <a class="link" href="../special/sf_beta/ibeta_function.html" title="Incomplete Beta Functions">ibetac</a> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| <p><span class="bold"><strong>1.00</strong></span></p> |
| <p> </p> |
| <p>(1.631e-006s)</p> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| <p>1.14</p> |
| <p> </p> |
| <p>(1.852e-006s)</p> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| <p>3.05</p> |
| <p> </p> |
| <p>(4.975e-006s)</p> |
| <p> |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <a class="link" href="../special/sf_beta/ibeta_inv_function.html" title="The Incomplete Beta Function Inverses">ibeta_inv</a> |
| and <a class="link" href="../special/sf_beta/ibeta_inv_function.html" title="The Incomplete Beta Function Inverses">ibetac_inv</a> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| <p><span class="bold"><strong>1.00</strong></span></p> |
| <p> </p> |
| <p>(6.133e-006s)</p> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| <p>1.19</p> |
| <p> </p> |
| <p>(7.311e-006s)</p> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| <p>2.60</p> |
| <p> </p> |
| <p>(1.597e-005s)</p> |
| <p> |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <a class="link" href="../special/sf_beta/ibeta_inv_function.html" title="The Incomplete Beta Function Inverses">ibeta_inva</a>, |
| <a class="link" href="../special/sf_beta/ibeta_inv_function.html" title="The Incomplete Beta Function Inverses">ibetac_inva</a>, |
| <a class="link" href="../special/sf_beta/ibeta_inv_function.html" title="The Incomplete Beta Function Inverses">ibeta_invb</a> |
| and <a class="link" href="../special/sf_beta/ibeta_inv_function.html" title="The Incomplete Beta Function Inverses">ibetac_invb</a> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| <p><span class="bold"><strong>1.00</strong></span></p> |
| <p> </p> |
| <p>(2.453e-005s)</p> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| <p>1.16</p> |
| <p> </p> |
| <p>(2.847e-005s)</p> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| <p>2.83</p> |
| <p> </p> |
| <p>(6.947e-005s)</p> |
| <p> |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <a class="link" href="../special/sf_gamma/igamma.html" title="Incomplete Gamma Functions">gamma_p</a> |
| and <a class="link" href="../special/sf_gamma/igamma.html" title="Incomplete Gamma Functions">gamma_q</a> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| <p><span class="bold"><strong>1.00</strong></span></p> |
| <p> </p> |
| <p>(6.735e-007s)</p> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| <p>1.41</p> |
| <p> </p> |
| <p>(9.504e-007s)</p> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| <p>2.78</p> |
| <p> </p> |
| <p>(1.872e-006s)</p> |
| <p> |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <a class="link" href="../special/sf_gamma/igamma_inv.html" title="Incomplete Gamma Function Inverses">gamma_p_inv</a> |
| and <a class="link" href="../special/sf_gamma/igamma_inv.html" title="Incomplete Gamma Function Inverses">gamma_q_inv</a> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| <p><span class="bold"><strong>1.00</strong></span></p> |
| <p> </p> |
| <p>(2.637e-006s)</p> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| <p>1.38</p> |
| <p> </p> |
| <p>(3.631e-006s)</p> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| <p>3.31</p> |
| <p> </p> |
| <p>(8.736e-006s)</p> |
| <p> |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <a class="link" href="../special/sf_gamma/igamma_inv.html" title="Incomplete Gamma Function Inverses">gamma_p_inva</a> |
| and <a class="link" href="../special/sf_gamma/igamma_inv.html" title="Incomplete Gamma Function Inverses">gamma_q_inva</a> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| <p><span class="bold"><strong>1.00</strong></span></p> |
| <p> </p> |
| <p>(7.716e-006s)</p> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| <p>1.29</p> |
| <p> </p> |
| <p>(9.982e-006s)</p> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| <p>2.56</p> |
| <p> </p> |
| <p>(1.974e-005s)</p> |
| <p> |
| </p> |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <br class="table-break"> |
| </div> |
| <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> |
| <td align="left"></td> |
| <td align="right"><div class="copyright-footer">Copyright © 2006 , 2007, 2008, 2009, 2010 John Maddock, Paul A. Bristow, |
| Hubert Holin, Xiaogang Zhang, Bruno Lalande, Johan Råde, Gautam Sewani and |
| Thijs van den Berg<p> |
| Distributed under the Boost Software License, Version 1.0. (See accompanying |
| file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>) |
| </p> |
| </div></td> |
| </tr></table> |
| <hr> |
| <div class="spirit-nav"> |
| <a accesskey="p" href="getting_best.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../perf.html"><img src="../../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="tuning.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a> |
| </div> |
| </body> |
| </html> |
