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Debug performance issues

Performance issues - where your application responds more slowly than you expect - can arise for a number of reasons. The first step is to identify the kind of slow-down that you are dealing with. You can then use your in-depth understanding of your application's design and configuration to identify the best way to implement performance optimizations.

A specific thing is slow​

Use activity analysis, dataset analysis and/or the Template tab in Developer tools to identify what is taking the most processing time. Depending on the cause of the performance issue, you may need to make changes to how activity rules are processed, how datasets are populated, or how templates are resolved.

A specific thing is suddenly slow​

If a part of your application has suddenly become slow (rather than always being slow or becoming slower over time due to a steady increase in data), the first step is to determine when the reduction in performance occurred.

You can use the Platform > Performance tab in Developer Tools to identify when something began to respond more slowly. Ensure that you only compare requests to other requests for the same case ID and by the same user.

Once you have identified the point at which the performance issue arose, consider what changes you have made to the application since then. For example, it could be that a large number of cases have been created or that large amounts of data have been added to certain attributes. This may be evident from the Platform > Task history tab in Developer Tools.

If you cannot identify a cause, you may want to compare performance in an earlier version of your application. Contact your Grexx Coach for help with deploying an earlier release and/or using a different release ring.

Everything is suddenly slow​

If your entire application suddenly becomes slow to respond, first confirm whether the issue is limited to your application:

  • Check your internet connection and check whether websites by other providers are performing normally.
  • Check whether other users on different networks are experiencing the same issue.
  • Check whether other Grexx Platform applications (such as my.grexx.today or marketplace.today) are performing normally.

If the issue is limited to your Grexx application and affects other users, use the Platform > Performance tab in Developer Tools to identify when the issue began, as described above.