> If you open the "Tools > Options" dialog in Visual Studio, and > navigate to the "Projects and Solutions > Build and Run" tab, what is > your "maximum number of parallel project builds" value?
This is set to 8, which is what I expect as I have 4 cores with hyperthreading (also to windows they show as 8 cores). > > For maximum parallel build capability, it should be set to the same as > the number of cores you have. Yves Tue, Jan 20, 2015 at 7:10 AM, Yves Frederix > <yves.frederix+cm...@gmail.com> wrote: >>>> 3.1.0: 10m50s >>>> 2.8.12: 4m02s >>>> 3.1.0 (/MP): 6m29s >>>> 2.8.12 (/MP): 3m48s >>> >>> I cannot reproduce that. On my machine for OpenCV (as of commit >>> 5e92a777) I get about the same time for either version of CMake. >>> >>> 3.1.0 : 8m57s >>> 2.8.12.2 : 8m58s >>> 3.1.0 (/MP): 4m52s >>> 2.8.12.2 (/MP): 4m57s >>> >>> Check in your cases that 3.1.0 does not activate additional parts of >>> the project that are not built under 2.8.12. >>> >>> Also please try a command-line build with just "msbuild" instead of >>> going through "cmake --build": >>> >>> msbuild ALL_BUILD.vcxproj /p:Configuration=Release >>> /p:VisualStudioVersion=12.0 >> >> (shouldn't this have been VisualStudioVersion=11.0?) >> >> So here are the timings: >> >> 3.1.0: 11m52s >> 2.8.12: 11m21s >> >> When keeping an eye on the resource monitor, I can also see that, >> while "cmake --build ." makes use of all the CPU cores (for 2.8.12) , >> this is not the case while running msbuild manually. >> >> Yves >> -- >> >> Powered by www.kitware.com >> >> Please keep messages on-topic and check the CMake FAQ at: >> http://www.cmake.org/Wiki/CMake_FAQ >> >> Kitware offers various services to support the CMake community. For more >> information on each offering, please visit: >> >> CMake Support: http://cmake.org/cmake/help/support.html >> CMake Consulting: http://cmake.org/cmake/help/consulting.html >> CMake Training Courses: http://cmake.org/cmake/help/training.html >> >> Visit other Kitware open-source projects at >> http://www.kitware.com/opensource/opensource.html >> >> Follow this link to subscribe/unsubscribe: >> http://public.kitware.com/mailman/listinfo/cmake -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/cmake
