Heap monitor shows 0.0 GB for 10 seconds when page loads

[mattrunyon]

Description

Change from #1450 does not get the heap usage immediately. As a result, 0.0 GB is shown for around 10 seconds until the first usage is polled.

Steps to reproduce

Load the page

Expected results

Heap usage shows total heap almost immediately

Actual results

Heap usage shows 0.0GB heap for around 10 seconds.

Additional details and attachments

The added hook does not call the method immediately, it only sets the interval. The original heap usage logic called immediately and then set the interval

Versions

• Web UI Version: Not released yet, next version after 0.46.0

[mattrunyon]

It looks like the original implementation also updated the usage whenever the fetch interval changed, so any time the user hovered over the indicator or stopped hovering over it, heap usage updated immediately