id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
4775	Poor performance of frontend translating models with Modelica.Media	ulfsen	somebody	"Hi,

a test with Modelica.Fluid.Examples.HeatExchanger.HeatExchangerSimulation shows a bad performance of the frontend in comparison to older releases.

1.9.7 = 17 seconds
1.13.0-dev-425-g5056d0b (64-bit) = 36 seconds

Additionally, when working with multicomponent media, e.g. multiple species like Modelica.Media.IdealGases.MixtureGases.SimpleNaturalGas by changing

{{{
package Medium = Modelica.Media.Water.StandardWaterOnePhase;
}}}

to 

{{{
package Medium = Modelica.Media.IdealGases.MixtureGases.SimpleNaturalGas;
}}}

In 1.9.7 = 27 seconds and
1.13.0-dev-425-g5056d0b (64-bit) = 52 seconds.

Could somebody check where in the front-end is the problem? Unfortunately the new frontend is still in progress but I have a model with 6 heat exchangers and the frontend needs 33 seconds with 1.9.7 but over 180 seconds with the nightly v.1.13 which makes it quite unusable (see attached .zip-file). "	defect	closed	high	1.19.0	New Instantiation	v1.13.0-dev-nightly	fixed