id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
2942	Beta2 vs Beta4: worsening performance and not convergence of a simulation	andreabrambilla82@…	somebody	"Hi,

I recently switched from Beta2 to Beta4 for Windows and I observed a considerable worsening of the performance, in particular:
- my simulations run much slower (even 5 times slower);
- OpenModelica crashes quite often when I save the changes to the models and the saving operation is much slower (a few seconds against a few minutes);
- when clicking on a component to display the mask where the parameters can be changed, in Beta2 the mask appears almost instantaneously while in Beta4 the mask appears even after 15 minutes.
Other than this, I have a quite simple model for simulating water-hammer which runs without any problem on Beta2 but it crashes on Beta 4 because the medium (compressible water) reaches a too high pressure. attached you can find the model.
Thanks and best regards,
Andrea. 
"	defect	closed	high	1.9.x	*unknown*	trunk	fixed