Difference between revisions of "How to speed up Qt Windows Vc Build"

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== Using /MP[processMax] option ==
 
== Using /MP[processMax] option ==
  
More information about /MP[processMax] option "here":http://msdn.microsoft.com/en-us/library/bb385193.aspx. Just add this flag to your spec file (''%QIDIR%/mkspecs/win32-msvc*/qmake.conf'').
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More information about /MP[processMax] option "here":http://msdn.microsoft.com/en-us/library/bb385193.aspx. Just add this flag to your spec file (''%QIDIR%/mkspecs/win32-msvc*/qmake.conf'').
  
 
''processMax'' argument:<br />* (Optional) The maximum number of processes that the compiler can create.<br />* The processMax argument must range from 1 through 65536. Otherwise, the compiler issues warning message D9014, ignores the processMax argument, and assumes the maximum number of processes is 1.<br />* If you omit the processMax argument, the compiler retrieves the number of effective processors on your computer from the operating system, and creates a process for each processor.
 
''processMax'' argument:<br />* (Optional) The maximum number of processes that the compiler can create.<br />* The processMax argument must range from 1 through 65536. Otherwise, the compiler issues warning message D9014, ignores the processMax argument, and assumes the maximum number of processes is 1.<br />* If you omit the processMax argument, the compiler retrieves the number of effective processors on your computer from the operating system, and creates a process for each processor.
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== Using jom ==
 
== Using jom ==
  
In linux we do speed up with make -j4 or something like this. There is similar tool developed called jom, it can be downloaded from git &quot;here&amp;quot;:http://qt.gitorious.org/qt-labs/jom.
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In linux we do speed up with make -j4 or something like this. There is similar tool developed called jom, it can be downloaded from git "here":http://qt.gitorious.org/qt-labs/jom.
  
See also &quot;jom's wiki page&amp;quot;:jom
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See also "jom's wiki page":jom
  
Precompiled packages can be found &quot;here&amp;quot;:http://get.qt.nokia.com/jom/.
+
Precompiled packages can be found "here":http://get.qt.nokia.com/jom/.
  
The original announcement of jom can be found &quot;here&amp;quot;:http://labs.qt.nokia.com/2009/03/27/speeding-up-visual-c-qt-builds/:
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The original announcement of jom can be found "here":http://labs.qt.nokia.com/2009/03/27/speeding-up-visual-c-qt-builds/:

Revision as of 14:22, 24 February 2015


Using /MP[processMax] option

More information about /MP[processMax] option "here":http://msdn.microsoft.com/en-us/library/bb385193.aspx. Just add this flag to your spec file (&#37;QIDIR&amp;#37;/mkspecs/win32-msvc*/qmake.conf).

processMax argument:
* (Optional) The maximum number of processes that the compiler can create.
* The processMax argument must range from 1 through 65536. Otherwise, the compiler issues warning message D9014, ignores the processMax argument, and assumes the maximum number of processes is 1.
* If you omit the processMax argument, the compiler retrieves the number of effective processors on your computer from the operating system, and creates a process for each processor.

Example: /MP2 (for dual core), /MP4 (for quad core)…

Using jom

In linux we do speed up with make -j4 or something like this. There is similar tool developed called jom, it can be downloaded from git "here":http://qt.gitorious.org/qt-labs/jom.

See also "jom's wiki page":jom

Precompiled packages can be found "here":http://get.qt.nokia.com/jom/.

The original announcement of jom can be found "here":http://labs.qt.nokia.com/2009/03/27/speeding-up-visual-c-qt-builds/: