Forum Discussion
Critical performance issue - PBI Service
- 8 years ago
Hello
Firstly, my sincere apologies for the dramatic delay in response; there’s been a number of altercations over the past few months, one is that I’m moving on to pastures new in a few weeks. That said, I’ve been meaning to respond to this post to provide my input & responses to the above for several weeks now(!).
Thank you for your response; I skimmed over the insightful Microsoft doc you referred me too and was happy to read that I was following industry ‘best practices’ (except for using PBIs platform to replicate the functionality of SSAS in the absence of SSAS teck) in the overall BI implementation/solution. The (other) exception was the ‘network latency’ section; this very well could have been a strong factor in this performance issue, it has always been a serious concern of mine here and had flagged internally. Unfortunately, this matter remains inconclusive.
Thank you for your response; correct, quite a few. However, as mentioned in my original post was the fact that, due to office circumstances at the time, SSAS teck was NOT being implemented. As I’m sure you know, SSAS is a teck that enables ‘performance tuning’ within its feature-set; since my original post, now that I’ve built, deployed and handling the data processing of the BI solution exclusively in SSAS (once I’d introduced the teck into the office), performance is now “user friendly” as you might expect. Ultimately, just as some offices might “incorrectly” use Excel as a ‘flat file database system’ in a way that the Excel teck isn’t explicitly designed for, PBI was also being used in a way that it isn’t explicitly designed for, and you get ‘real-world’ problems as you might expect.
Thanks all. I am happy for this post to be closed.
Hi there, it appears that there could be quite a few things causing performance issues.
I would consider looking to see if you access your SSAS cube directly if that is fast or slow? Because if the design of the SSAS cube is not optimal then the DirectQuery being sent back to the SSAS cube could potentially be the bottleneck. I have so far never had any issues with the Power BI Service, but more rather from the sources.
Then I would also ensure where you have got the On-Premise Gateway installed has enough resources to handle the direct query loads.
Another alternative is to load everything into Power BI Desktop via Import mode and see how that works in the Power BI Service. That will allow you to see if it the Power BI Service, or another artefact within your environment.
I currently have got running a Power BI Desktop file that is 900MB in size with Import mode, and that is running very fast in the Power BI Service.
Likewise I have got an SSAS 2017 Tabular instance with DirectQuery that too is running almost instantly when rendering and clicking on visuals.
- AndreVar677 years agoFrequent Visitor
Hi.
I'm having degraded performance in my "PBI Service" reports me too.
Same report, good performance two/three weeks ago Now, lot of time is needed to complete page refresh or "no recource" message is displayed (I don't use ssas connection because I have multiple sources: Analysis, SQL and some excel. I have imported all data in report)
I have a PBI Pro licence.
Could be possible this problem regarding new PBI version released in April ? ..there is an article that describe a change of page recalc/review depending on user activity.
Thanks
BR
- GilbertQ7 years agoSuper UserHi there
Can you see if your data model has changed (As in gotten larger) or if there were new measures added?- AndreVar677 years agoFrequent Visitor
Data Model: I deleted a lot of unnecessary (at now) columns and reduced imported records (my target was to expose result of last 5 years and I reduced to last two only.)
Measures: some measures added (and sametime I replaced SUM with CALCULATE+SUMX).
I created a role to manage row-level security. Microsoft documentation: ROLEs shouldn't have impacts in performance (I hope...).
I have also found a recently Microsoft article about new workspaces availability (https://powerbi.microsoft.com/en-us/blog/announcing-new-workspace-experience-general-availability-ga/) and I publicated my report in a new one (it seems a little bit more faster...).
One note again: we usually use PowerBI through internal Company Network (it is a huge worldwide network). I'll ask for possible problems bewteen internal Net and PowerBI servers (external)... but in this case, I should have same (bad) performance like my colleagues, I think.
Thanks,
BR