diff options
Diffstat (limited to 'www/performance.html')
| -rw-r--r-- | www/performance.html | 40 |
1 files changed, 17 insertions, 23 deletions
diff --git a/www/performance.html b/www/performance.html index f76fc7a0094d..2bb8fe272f2d 100644 --- a/www/performance.html +++ b/www/performance.html @@ -41,7 +41,7 @@ interesting benchmarks: <p> For previous performance numbers, please -go <a href="performance-2008-10-31.html">here</a>. +go <a href="performance-2009-03-02.html">here</a>. </p> <!--*************************************************************************--> @@ -50,8 +50,7 @@ go <a href="performance-2008-10-31.html">here</a>. <p>Measurements are done by running a full build (using xcodebuild or make for Sketch and 176.gcc respectively) using Clang and gcc 4.2 as -compilers; gcc is run both with and without the new clang driver (ccc) -in order to evaluate the overhead of the driver itself.</p> +compilers.</p> <p>In order to track the performance of various subsystems the timings have been broken down into separate stages where possible. This is @@ -65,13 +64,9 @@ the build. non-source code resource files.</li> <li><tt>+ driver</tt>: Add execution of the driver, but do not execute any commands (by using the -### driver option).</li> - <li><tt>+ pch gen</tt>: Add generation of PCH files.</li> - <li><tt>+ cpp</tt>: Add preprocessing of source files (this time is - include in syntax for gcc).</li> - <li><tt>+ parse</tt>: Add parsing of source files (this time is - include in syntax for gcc).</li> - <li><tt>+ syntax</tt>: Add semantic checking of source files (for - gcc, this includes preprocessing and parsing as well).</li> + <li><tt>+ pch gen</tt>: Add generation of PCH files (if used).</li> + <li><tt>+ syntax</tt>: Add preprocessing, parsing, and semantic checking of + source files.</li> <li><tt>+ IRgen</tt>: Add generation of LLVM IR (gcc has no corresponding phase).</li> <li><tt>+ codegen</tt>: Add generation of assembler files.</li> @@ -80,31 +75,30 @@ the build. </ul> </p> -<p>This set of stages is chosen to be approximately additive, that is -each subsequent stage simply adds some additional processing. The -timings measure the delta of the given stage from the previous -one. For example, the timings for <tt>+ syntax</tt> below show the -difference of running with <tt>+ syntax</tt> versus running with <tt>+ -parse</tt> (for clang) or <tt>+ driver</tt> with gcc. This amounts to -a fairly accurate measure of only the time to perform semantic -analysis (and preprocessing/parsing, in the case of gcc).</p> +<p>This set of stages is chosen to be approximately additive, that is each +subsequent stage simply adds some additional processing. The timings measure the +delta of the given stage from the previous one. For example, the timings +for <tt>+ syntax</tt> below show the difference of running with <tt>+ +syntax</tt> versus the times for <tt>+ pch gen</tt>. This amounts to a fairly +accurate measure of only the time to perform preprocessing, parsing, and +semantic analysis after PCH generation is done.</p> <!--*************************************************************************--> <h2><a name="timings">Timing Results</a></h2> <!--*************************************************************************--> <!--=======================================================================--> -<h3><a name="2009-03-02">2009-03-02</a></h3> +<h3><a name="2009-06-26">2009-06-26</a></h3> <!--=======================================================================--> -<a href="timing-data/2009-03-02/sketch.pdf"> +<a href="timing-data/2009-06-26/sketch.pdf"> <img class="img_slide" - src="timing-data/2009-03-02/sketch.png" alt="Sketch Timings"/> + src="timing-data/2009-06-26/sketch.png" alt="Sketch Timings"/> </a> -<a href="timing-data/2009-03-02/176.gcc.pdf"> +<a href="timing-data/2009-06-26/176.gcc.pdf"> <img class="img_slide" - src="timing-data/2009-03-02/176.gcc.png" alt="176.gcc Timings"/> + src="timing-data/2009-06-26/176.gcc.png" alt="176.gcc Timings"/> </a> </div> |