Re: sorting freezes UI

>
> Lex,
>
>  I'm surprised to hear the UI is unresponsive for *minutes*... that
> seems excessive. Make sure you've written your Comparator(s) to be as
> fast as possible. Even things like reflection overhead is significant
> when you're dealing with 100,000+ elements. For 100,000 elements, I'd
> estimate 10 seconds is reasonable on most modern processors.... so "
> minutes" feels like something is wrong. Make sure you're not creating
> temporary objects in your Comparator, if you can get away from that...
>
>  As for how to sort in the background.... you'll probably have to
> roll a custom solution for that. Our TableComparatorChooser makes
> assumptions, for example, that the "sorting model" and the SortedList
> are actually in sync, which is only guaranteed when they are both
> updated on the EDT. Even if you put the sorting on a background
> Thread, you'll have to keep the pipeline locked while the sort occurs,
> which will prevent other changes from taking place (subsequent sorts,
> adding new elements, etc), so there probably isn't much you can do
> here.
>
>  To be clear, I think investigating the cause of the slow sort is
> your best course of action for the time being.
>
> James
>
>
> On Fri, Jul 18, 2008 at 11:20 PM, lexthang <lexthang@...> wrote:
>
>  Sorry if this sounds like such a fundamental question .. I search
> the forum
>  but didn't find anything similar (there's only one post about frozen
> UI for
>  a few seconds when creating an EventList of a few hundred items list)
>
>  So we have a table of hundreds of thousand of rows .. We notice that
> when we
>  click on some column to sort, the UI becomes unresponsive for
> minutes. It
>  appears the cause is due to the sorting is being done in the main
> event
>  thread itself. Is there away we can move the sorting to another
> thread
>  safely? I understand something like that might need to be intricate,
> since
>  the click-handling is totally inside glazedlist, which means some
> types of
>  callback might be necessary. Still, it would be a really really
> great thing
>  if we can have something like that .. or some pointers on what might
> be
>  possible.
>
>  Thank you!
> --
>  View this message in context: http://www.nabble.com/sorting-freezes-
> UI-tp18541809p18541809.html
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>
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