Created question in FIWARE Q/A platform on 17-07-2018 at 11:07
Please, ANSWER this question AT https://stackoverflow.com/questions/51377854/fiware-orion-performance-variations

Question:
Fiware Orion performance variations

Description:
I have some general questions about Orion performance, in general i have no issues with Orion and it is working properly. But i am seeing some strange patterns and need some advice about.

So my setup is docker-compose.

Cli commands used while creating:

Orion -dbhost mongo -reqMutexPolicy none -dbPoolSize 100 -logLevel NONE
Mongo --nojournal --logappend

Question:

Case:

3000 entities in batch operations, split into 5 + batch. So 5 + connection
My PC 8 gig ram, i7

Times:

First time creating:

POST 200 7341.858 ms - 5 take notice and - 3 seconds of this because my program
take that much to do some checks so 4 sec.

Second time only difference service path:

POST 200 10845.319 ms - 5

Third time creating difference service path:

POST 200 16033.816 ms - 5

Next calls 20 sec, 25 sec, 33 sec, 45 sec.... Only difference between them is service path.

So as u can see each next request is simply taking longer ( or that is expected ), i have read documentation about performance but failed to find something similar to this.
It seem that mongo is issue here for some reason it is inconsistent, and not by expected margin but much more.

Picture of docker stats command: