topic QlikView GeoAnalytics – do non-visible layers increase rendering time? in GeoAnalytics

QlikView GeoAnalytics – do non-visible layers increase rendering time?

rothtd — Fri, 30 Nov 2018 15:41:26 GMT

I have a QV Geo app with 20 different layers on a map, and all are non-visible (the visible checkbox is unchecked) except for one. The idea is this is the starting layer and then the end user can turn on/off different layers per their analysis needs. What I’m noticing is the rendering time of the tab seems to slow down due to the amount of layers present – even though they are not visible.

I’m measuring the time (in QV Desktop) from the opening of the QVW file to when the screen is fully rendered, and it is about 30 seconds. If I delete all the layers but one this time drops to about 10 seconds. This seems to indicate that even though these extra layers should be ignored they are not, and are causing slowness. Can anyone confirm this is the case, if they have experienced this (and if so, what are the methods to improve performance besides deleting layers).

Thanks in advance!

QV: 12.10 SR6

GA: On prem server February 2018, Enterprise Data Package 17.09

Re: QlikView GeoAnalytics – do non-visible layers increase rendering time?

rothtd — Fri, 30 Nov 2018 15:51:57 GMT

I'll add to this that I'm aware of the technique of opening to a splash page, and that measuring opening time can be tricky because of QlikView caching and other issues. In addition I am looking at other factors that might influence this such as data model design, amount of data in the application, etc. So far it appears that two things make a significant impact - purging most of the data in the application and/or removing most of the map layers.

Re: QlikView GeoAnalytics – do non-visible layers increase rendering time?

Patric_Nordstrom — Tue, 04 Dec 2018 09:54:21 GMT

Hi, that sounds odd, I would say that non-visible layers are not calculated but we will look into it. Is it the same when you use show conditions on the layers?

Also please upgrade if possible, there are some nice bug fixes in the latest release of QGA and QV.

Thanks,
Patric