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rnepla83
Contributor

Qlik Sense object calculation Time too long respect the same object in QlikView

Hi community

in our Sense application we are fighting with some performance problems.

In specific, the time spent by the calculation engine of sense, is so different respect the engine of QlikView. Using the same architecture, RAM and CPU.

In qlik view the time to calculare a pivot with 60 KPIU is 58 Sec, in sense a bit less than 4 mins (for the same pool of kpi).

In particular, as you ca see in the image below, The sense object spend 3 mins only for the initial phase.

My question is what happen in that phase? Is there any log?

Datamodel size:500Mb

If i was too syntetic, please ask for detail.

Really thanks,

Paolo.

Calculation.jpg

7 Replies
YoussefBelloum
Esteemed Contributor

Re: Qlik Sense object calculation Time too long respect the same object in QlikView

Hi,

Maybe try to optimize some things.. what are the expressions you're using ?

rnepla83
Contributor

Re: Qlik Sense object calculation Time too long respect the same object in QlikView

Hi Youssef.

the problems are not the expression. The datamodel and the expression are optimized.

The problem is that the same pool of expression in qlikview is calculate in less time respect in Sense, using the same architecture.

pivot table with 70 KPI in qlikview is calculated in 58 seconds

pivot table with the same  70 KPI in qliksense is calculated in 4 minutes.


The image that i attached before explain that sense loops in a fase for more than 3 mins (is displayed 'cancel' for 3 mins).

YoussefBelloum
Esteemed Contributor

Re: Qlik Sense object calculation Time too long respect the same object in QlikView

I see

I have always noticed a lack of performance compared to Qlikview, but not such a big gap..

you compare it to which version of Qlikview ?

rnepla83
Contributor

Re: Qlik Sense object calculation Time too long respect the same object in QlikView

Qlikview 12.10

Qlik Sense April 2018

YoussefBelloum
Esteemed Contributor

Re: Qlik Sense object calculation Time too long respect the same object in QlikView

Same engine... maybe you're using a virtual machine for sense server?

I Know you guys omarbensalemmto‌ are using a lot Qliksense and maybe you have some ideas concerning some benchmarks between Qlikview and Qliksense ?

rnepla83
Contributor

Re: Qlik Sense object calculation Time too long respect the same object in QlikView

I really appreciate your help,

would be super to get some opinion from you guys omarbensalem mto


I would like to specify that the performance test are made in the same server with 16 core and 64GB of RAM.

Is a test env so is not necessary a lot of resource. The steps i made are:


- Run the qvf with a table that have 70 Kpi's.

- In the same server, run the qvw file having the same table with also 70 Kpi's.


to calculate the first table in the qvf take 4 mis, in the qvw take 50 seconds.

The most long waiting is in the step represented in the image below (the render is really fast)

What happen during that phase? is there any log to get some more info?


The qlikview commercial person that explain the difference between QS and QV told us that the calculation engine is the same between the two architecture.


Really thanks for your time,

Paolo.


Calculation.jpg

marychen
New Contributor III

Re: Qlik Sense object calculation Time too long respect the same object in QlikView

I have same problem in QS June 2018 version vs. QlikView 12.10.

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