[jbosstools-issues] [JBoss JIRA] (JBDS-3651) Reduce the delay between the main window opening and the first page being rendered

[Jan Richter (JIRA)]

    [ https://issues.jboss.org/browse/JBDS-3651?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13204353#comment-13204353 ] 

Jan Richter commented on JBDS-3651:
-----------------------------------

Here is some actual data from a profiler to put this into perspective:

Reloading the app takes around 3.3 seconds on my machine (script execution and rendering)
>From the 3.3 seconds:
 - 3 seconds (2979 ms) is script execution
   - around 80% of the scripting time (2392 ms) is consumed by babel transformation (called from jspm's systemjs)

> Reduce the delay between the main window opening and the first page being rendered
> ----------------------------------------------------------------------------------
>
>                 Key: JBDS-3651
>                 URL: https://issues.jboss.org/browse/JBDS-3651
>             Project: Red Hat Developer Studio (DevStudio)
>          Issue Type: Enhancement
>          Components: platform-installer
>            Reporter: Jan Richter
>            Assignee: Denis Golovin
>              Labels: havoc, ui
>             Fix For: 10.0.0.Alpha3
>
>
> Starting the installer right now leaves the user with about 3 seconds of staring at an empty window before the content shows up.
> I've done a few tests on this matter and it seems majority of those 3 seconds is spent on angular bootstrap - mainly loading the required files and registering controllers. Replacing the index with simple static HTML causes the page to render almost instantaneously. 
> We should consider some way of showing the GUI before the user falls asleep (before angular fully loads the entire app).



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