[xtext-dev] Test performance

[Jan Köhnlein <jan.koehnlein@xxxxxxxxx>]

Hi there, 

I've noticed a serious decrease in the build performance. It looks like the smoke tests to serialize everything really consume a lot of memory and processing power. Furthermore, some UI tests fail because of the forced serialization. 

@Moritz Are you going to have a look at the failing tests? 
@All Does it make sense to keep the brute force serialization test? IMHO, it is a good idea to do this locally to find the last glitches in the serializer, but we should not force it on the build server and on every developer's machines.

Furthermore, on my machine 4 UI tests are failing while on the build server it's 16! I've increased memory and I hope this will reproduce the same number of errors on the server. 

Regards
Jan