[Pkg-phototools-devel] Bug#855359: Bug#855359: darktable: 2.2.1 binary very slow compared to self-compiled

[Matthias Bodenbinder]

Am 20.02.2017 um 00:36 schrieb David Bremner:
> Matthias Bodenbinder <matthias at bodenbinder.de> writes:
> 
>> And by the way, this are the commands I use to compile DT:
>>
>> ./build.sh --disable-gnome-keyring --prefix /home/software/darktable --build-type Release
>> cd build
>> echo "darktable 2.2.1" > description-pak
>> checkinstall --default --install=no --pkgname=darktable-mbo --pkgversion=$version --docdir=$INST/share/doc
>>
>> Matthias
> 
> The debian package does not use build.sh. I looks like build.sh does not
> pass -DBINARY_PACKAGE_BUILD=1 to cmake.
> 
> To test this, you could run something like
> 
> mkdir -p dtbuild && cd dtbuild && cmake  -DCMAKE_INSTALL_PREFIX=/opt/darktable \
>       -DCMAKE_BUILD_TYPE=Release  -DBINARY_PACKAGE_BUILD=1 .. 
> 
> then I guess your same checkinstall should work.
> 
> d
> 

Ok. I did the test. 

I tested 3 different DT binaries:

DT 1: binary from debian testing
DT 2: self-compiled with default DT build.sh
DT 3: self-compiled following your cmake commands

The result is interesting. The time shown is the average of 5 consecutive runs. The variance between each run is less than a second:

DT 1: binary from debian testing			: 22 s
DT 2: self-compiled with default DT build.sh		: 15 s
DT 3: self-compiled following your cmake commands	: 19 s

So your cmake variant is basicyll in the middle. 

I can provide DT 2 and DT 3 as deb files (approx. 9 MB each).

Matthias