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QlikView Performance

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jblomqvist
Contributor II

How do QVD files affect RAM?

Hi,

Can anybody please tell me if using QVD files affects RAM?

Is it a positive affect?

9 Replies
maiconmello
Contributor III

Re: How do QVD files affect RAM?

Only at the time of reading. If you are transforming some data using a group by , something gênero.Depois the application, you can usually affect when climbing the QVD data to memory and contain foreign key, Cartesian product etc.

Re: How do QVD files affect RAM?

A QVD file is a way of storing data on disk that will load into QlikView quickly.

QVD files do not consume RAM until they are loaded into your application.

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jblomqvist
Contributor II

Re: How do QVD files affect RAM?

So it is only until the loading process that RAM gets used by QVD files?

amit_saini
Honored Contributor III

Re: How do QVD files affect RAM?

jblomqvist
Contributor II

Re: How do QVD files affect RAM?

But does QVD files consume RAM after the data has been loaded into a QlikView application?

ankit777
Valued Contributor

Re: How do QVD files affect RAM?

hi

QVD do not consume any RAM.

It consumes space on you disk only. You can use these QVD to load data in a QVW. This QVW will consume RAM.

Thanks

Re: How do QVD files affect RAM?

To clarify, it is the data loaded into the application (QVW), the number of users accessing that application and the cached calculations that consume RAM, not the QVD files.

asgardd2
Contributor III

Re: How do QVD files affect RAM?

QVD- is a format QlikView data, storing data in a special way. So, after storing , qvd-files can be loaded into QlikView applications.

If you do not put logic conditions (except exist) and load a table with no processing from qvd file - loading into memory is very fast. (Optimized load)

agni_gold
Valued Contributor

Re: How do QVD files affect RAM?

Ankit777 has explained correctly .

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