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Improve the startup time: skip test plan UI initialization #573

merged 1 commit into from Mar 26, 2020


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@vlsi vlsi commented Mar 24, 2020

On my machine menu initialization takes 2-3 seconds (2.6GHz, SSD, fully cached).
Most of the cases the time is spent in creating Swing components, however, that work is not needed to get the label for the menu.

Even though the proper approach would be to split metadata from the UI components, I think it is fine to have an intermediate solution.
Note: TestBeanGui does not initialize UI elements, however, full bean metadata initialization still takes time (e.g. JSR223 elements query ScriptEngine for the list of available languages)

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@pmouawad pmouawad commented Mar 24, 2020

Hi @vlsi ,
It looks good to me.
But can you clarify the gain on your machine ?
It takes now 2-3 seconds ? vs how much before ?


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@vlsi vlsi commented Mar 24, 2020

It takes now 2-3 seconds ?

@pmouawad , it was 2-3 seconds (before fix), and now it is 0.1sec (after fix)
Splash screen disappears almost at the same time JMeter window opens.

JMeter used to initialize all the components at the startup even in case
the element was never used.

This commit adds a shortcut for the well-known in-core components.

User-visible outcome is the spashscreen no longer gets stuck
for 2 seconds at 100%
@vlsi vlsi merged commit b47c658 into apache:master Mar 26, 2020
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