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Slow compilation of application using MRPT in Visual Studio 2010

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Thu, 08/16/2012 - 14:18
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sotomsa
sotomsa's picture
Slow compilation of application using MRPT in Visual Studio 2010

Hi all,

   I have been using MRPT for around 3 months. I have some classes that extend from MRPT classes encapsulated in a lib and another project with the actual application. It happens that every time a modify a line from my lib which extends MRPT the compilation takes around 3 minutes and a half. Is that normal?
I have been in the last hours trying to setup precompiled headers to speed up the compilation time but it is actually making it slower (now it takes 7 minutes). Can anyone let me know if precompiled headers is a solution that might speed up the compilation of my code or what else could I try? If precompiled headers is the solution, can please someone give me some clue about how to do it right.

In this moment I have created my StdAfx.h with some code that I have seen in the forum and set the visual studio with the proper /YC and /Yu directives.

Here is my StdAfx.h file

 
// Adding MRPT precompiled headers
#include <mrpt/base.h>
#include <mrpt/slam.h>
#include <mrpt/gui.h>
#include <mrpt/vision.h>
#include <mrpt/hwdrivers.h>
 
using namespace mrpt;
using namespace mrpt::utils;
using namespace mrpt::math;
using namespace mrpt::random;
using namespace mrpt::gui;
using namespace mrpt::slam;
using namespace mrpt::vision;
using namespace mrpt::hwdrivers;
 
 
// Adding Eigen's libraries
#include <Eigen/Core>
#include <Eigen/Geometry>
#include <Eigen/LU>
#include <Eigen/Cholesky>
#include <Eigen/Householder>
#include <Eigen/SVD>
#include <Eigen/QR>
#include <Eigen/Eigenvalues>
#include <Eigen/Sparse>
#include <Eigen/Dense>
#include <Eigen/Eigen>
 
Thanks
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Sat, 09/08/2012 - 00:23
jlblanco
jlblanco's picture
Hi, If precompiled headers

Hi, 

If precompiled headers are setup right, it should take a while to compile your precompiled source file (StdAfx.cpp or whatever, the one with /YC), but the other files (with /Yu) should compile in few seconds each. Make sure you have the right settings by examining the file properties in the Solution Explorer -> Right click on each source file -> Properties -> C/C++ -> Precompiled headers. 

As a side note: I'm still using Visual Studio 2008 because it's like 10x faster than VS2010 in everything!!

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