topic Re: What happens to Server CPU/RAM when multiple Tasks reads the same large QVD file in Management & Governance

What happens to Server CPU/RAM when multiple Tasks reads the same large QVD file

HaseebIqbal — Mon, 28 Oct 2024 00:13:04 GMT

What happens to Server CPU/RAM when multiple Tasks reads the same large QVD file?

Platform: Qlik Sense Feb 2024 P5. Multi-Node windows server.

Re: What happens to Server CPU/RAM when multiple Tasks reads the same large QVD file

mpc — Mon, 28 Oct 2024 07:42:27 GMT

Hi,

AFAIK, Qlik will create a single thread by task, then CPU and RAM will be consumed by each tasks.

Regards

Re: What happens to Server CPU/RAM when multiple Tasks reads the same large QVD file

Or — Mon, 28 Oct 2024 07:55:48 GMT

A QVD file is just a file, and the data is getting dumped straight to memory (assuming it's an optimized load). Each read will take up separate resources but there shouldn't be any issue past that. Depending on your setup, the biggest limiting factor may be I/O, network, or CPU, with memory being whatever the app will be using to store the QVD's data, times the number of apps.