[CMake] FYI - From Ninja-build mailing list - Fwd: Proposal: restat rules
Peter Kümmel
syntheticpp at gmx.net
Thu Oct 6 16:05:09 EDT 2011
On 06.10.2011 21:14, Peter Kümmel wrote:
>>
>> 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,
Another idea is to down-cock the system: My system runs in a VirtualBox,
and I simply don't allow 100% CPU usage:
KST:
qmake cmake ninja
-j1 14s 45s 3s
-j2 14s 27s 3s
VTK:
qmake cmake ninja
-j1 130s 8s
-j4 30s 8s
Peter
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