Dashboard performance issues and Creating a dashboard with dynamic target source dropdown list

Hi Elad,

1. To isolate the query runtime vs general dashboard load times, can you please wait for the dashboard to fully load, then press the "refresh" button in the upper-right corner of the chart that took a while, and compare how long it takes for the data to come back vs how long the query takes to run in the Analytics portal?

2. This is not today possible through the UI, though something we'd like to offer in the future, together with other filtering capabilities. In the meanwhile, if you share your dashboard (even if just with yourself), it'll become an ARM resource, backed by a JSON template. You can download this JSON template, modify the target resource, and re-upload it for having a dashboard with a different target. I know this is a lot more cumbersome and doesn't entirely meet your request, but this could be a good workaround until we have the full feature implemented.