OK, so I think this project is way too small for this test. There is
some fixed overhead in the process here, and we are seeing it. We are
talking about .5 seconds difference to check a whole build system. If
you want to do tests like this, you need a much bigger project. I am
sure that CMake will not be 50% slower for a larger project where we are
not comparing .5 seconds to 1.1 seconds or .1 seconds.
I don't know a bigger project which supports qmake and cmake,
but I tried VTK:
Time to check when nothing to build:
ninja(ms) make(ms)
-j1 ~250 3600
-j2 ~250 2100
-j4 ~250 1700
Peter
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