CAPM - User reporting performance issue when loading dashboard
User is reporting performance issues with loading dashboards since upgrading to 21.2.12. They are getting "Page Unresponsive" errors like the following. Selecting Wait multiple times eventually results in the completed report.
Seen against Views using a 30 Day Time Frame along with 5 Minute Resolution.
DX NetOps Performance Management release 21.2.12+
Increase to the MaxChartTooltipsCharacterLength in 21.2.12, which increases the number of Tooltips available to the View chart, can lead to slow to complete Dashboard Views for larger Views with larger data sets.
Before the changes in 21.2.12 were introduced these settings were used.
As of 21.2.12+ releases we now use the following for both graph types.
Lower the MaxChartTooltipsCharacterLength to improve performance for large Dashboard Views. The following change is recommended.
If the new lowered value of 256000 does not resolve the issue, please engage Support for further assistance via a new support case.
To few Tooltips after setting the value to 256000?
Test by setting different values for MaxChartTooltipsCharacterLength by adding 56000 at a time to the current 256000. I.E. set it to 312000 and see how it works. Performance is acceptable and getting enough Tooltips? Great, leave it there.
Performance is acceptable but not enough Tooltips, raise the value by another 56000 to 368000 and test again. Once a value you are happy with has been set, finding a balance between performance and Tooltip counts, leave it set that way.
The configured value should remain through future upgrades.