Perrformance testing : Impact of users vs concurrent users

[Preethi Srinivasan]

This is with respect to performance testing in JIRA.  We have come across this link that basically talks about performance testing (https://confluence.atlassian.com/adminjiraserver0713/performance-and-scale-testing-966063698.html#Performanceandscaletesting-methodology\). In the "Testing methodology" topic under "How we tested" section we can see that for baseline jira data set the users are set to 100,000, we have a query. Is this the list of users who have account in JIRA or concurrent users who are accessing the application simultaneously?

In addition to this  query, can you also please address this concern as well-
How different is the impact for the following scenarios.

a) there are 4000 users in JIRA created and 100 concurrent users are using the sessions  Vs there are 100 users in JIRA and all 100 are using the sessions. How different would the impact be with respect to performance?

Thank you

[jira guy]

I haven't read the whole documentation from Atlassian. But I believe it's for concurrent users. 

a) there are 4000 users in JIRA created and 100 concurrent users are using the sessions  Vs there are 100 users in JIRA and all 100 are using the sessions. How different would the impact be with respect to performance?

JIRA takes performance hit when there are more concurrent users. Regarding your question, they will have almost the same impact. Having bunch of inactive users shouldn't cause any performance issues.