Ok, that might have something to do with it! :-D

Thanks!

2016-06-16 16:21 GMT+02:00 Martin Grigorov <mgrigo...@apache.org>:

> The models and data providers are asked for their data at render time.
> Once the final data is available Wicket starts populating the HTML markup
> with it.
>
> Martin Grigorov
> Wicket Training and Consulting
> https://twitter.com/mtgrigorov
>
> On Thu, Jun 16, 2016 at 4:17 PM, Lars Törner <lars.tor...@gmail.com>
> wrote:
>
> > Hi Martin,
> >
> > we use wicket 6.22.
> >
> > Doesn't the rendering take place when everything else is done? I.e the
> > wicket components are already created and populated with data when the
> > rendering phase starts. I guess I have to dig a bit deeper... anyway,
> > thanks for your quick answers!
> >
> > Lasse
> >
> > 2016-06-16 15:47 GMT+02:00 Martin Grigorov <mgrigo...@apache.org>:
> >
> > > Also it could be similar to
> > > https://issues.apache.org/jira/browse/WICKET-6177.
> > > There the user also has a lot of components in the tree and this takes
> > time
> > > at page serialization time.
> > >
> > > Martin Grigorov
> > > Wicket Training and Consulting
> > > https://twitter.com/mtgrigorov
> > >
> > > On Thu, Jun 16, 2016 at 3:46 PM, Martin Grigorov <mgrigo...@apache.org
> >
> > > wrote:
> > >
> > > > Hi Lasse,
> > > >
> > > > Which version of Wicket do you use ?
> > > >
> > > > I think you will have to use a profiler to see where the times is
> > spent.
> > > > It could be Wicket, but also it could be the application spending a
> lot
> > > of
> > > > time while loading the data which should be rendered.
> > > >
> > > >
> > > > Martin Grigorov
> > > > Wicket Training and Consulting
> > > > https://twitter.com/mtgrigorov
> > > >
> > > > On Thu, Jun 16, 2016 at 3:37 PM, Lars Törner <lars.tor...@gmail.com>
> > > > wrote:
> > > >
> > > >> Hi,
> > > >>
> > > >> we have an issue with rendering performance and I wonder if there
> are
> > > any
> > > >> common misusages of wicket when it comes to this.
> > > >>
> > > >> When rendering a fully expanded tree with 160 top level nodes and
> > mostly
> > > >> no
> > > >> subtrees (an expanded node is a forms with a bunch of labels and
> > > >> attributes) it takes about 20 seconds for the page to load (actually
> > > it's
> > > >> an Ajax request) and it seems that most of this time is spent when
> > > wicket
> > > >> renders the components.
> > > >>
> > > >> For one ot these 160 nodes, which has some sub nodes and forms,
> > > rendering
> > > >> takes about half a second.
> > > >>
> > > >> I'm using the RenderPerformanceListener from wicket-devutils to do
> the
> > > >> measuring and gets, for the entire expanded tree, over 22 000
> > > >> "afterRender"
> > > >> rows in the log from the RenderPerformanceListener.
> > > >> This is in my opinion a huge number!
> > > >>
> > > >> - is it expected that rendering of so many components takes this
> > amount
> > > of
> > > >> time?
> > > >> - is this amount a sign of that we are using wicket in the wrong
> way?
> > > >>
> > > >>
> > > >> Don't know if this makes any sense to anyone but this is the last
> > lines
> > > of
> > > >> the log output for one of the top level nodes:
> > > >>
> > > >>
> > > >>
> > >
> >
> 'mainContent:detailViewer:detailAndSidebarContainer:detailContainer:bodyContainer:subtree:subtree:branches:158:subtree:branches:8:node:content:component:objectViewerForm:objectSection:1:objectSectionContent:attributeRow:attributeRowCol:12:cell:attributeEditLabel'
> > > >> for 0ms
> > > >>
> > > >>
> > >
> >
> 'mainContent:detailViewer:detailAndSidebarContainer:detailContainer:bodyContainer:subtree:subtree:branches:158:subtree:branches:8:node:content:component:objectViewerForm:objectSection:1:objectSectionContent:attributeRow:attributeRowCol:12:cell:attributeDisplayLabel'
> > > >> for 0ms
> > > >>
> > > >>
> > >
> >
> 'mainContent:detailViewer:detailAndSidebarContainer:detailContainer:bodyContainer:subtree:subtree:branches:158:subtree:branches:8:node:content:component:objectViewerForm:objectSection:1:objectSectionContent:attributeRow:attributeRowCol:12:cell:attributeDisplay'
> > > >> for 0ms
> > > >>
> > > >>
> > >
> >
> 'mainContent:detailViewer:detailAndSidebarContainer:detailContainer:bodyContainer:subtree:subtree:branches:158:subtree:branches:8:node:content:component:objectViewerForm:objectSection:1:objectSectionContent:attributeRow:attributeRowCol:12:cell:attributeFeedback'
> > > >> for 1ms
> > > >>
> > > >>
> > >
> >
> 'mainContent:detailViewer:detailAndSidebarContainer:detailContainer:bodyContainer:subtree:subtree:branches:158:subtree:branches:8:node:content:component:objectViewerForm:objectSection:1:objectSectionContent:attributeRow:attributeRowCol:12:cell'
> > > >> for 2ms
> > > >>
> > > >>
> > >
> >
> 'mainContent:detailViewer:detailAndSidebarContainer:detailContainer:bodyContainer:subtree:subtree:branches:158:subtree:branches:8:node:content:component:objectViewerForm:objectSection:1:objectSectionContent:attributeRow:attributeRowCol:12'
> > > >> for 2ms
> > > >>
> > > >>
> > >
> >
> 'mainContent:detailViewer:detailAndSidebarContainer:detailContainer:bodyContainer:subtree:subtree:branches:158:subtree:branches:8:node:content:component:objectViewerForm:objectSection:1:objectSectionContent:attributeRow:attributeRowCol'
> > > >> for 26ms
> > > >>
> > > >>
> > >
> >
> 'mainContent:detailViewer:detailAndSidebarContainer:detailContainer:bodyContainer:subtree:subtree:branches:158:subtree:branches:8:node:content:component:objectViewerForm:objectSection:1:objectSectionContent:attributeRow'
> > > >> for 27ms
> > > >>
> > > >>
> > >
> >
> 'mainContent:detailViewer:detailAndSidebarContainer:detailContainer:bodyContainer:subtree:subtree:branches:158:subtree:branches:8:node:content:component:objectViewerForm:objectSection:1:objectSectionContent'
> > > >> for 27ms
> > > >>
> > > >>
> > >
> >
> 'mainContent:detailViewer:detailAndSidebarContainer:detailContainer:bodyContainer:subtree:subtree:branches:158:subtree:branches:8:node:content:component:objectViewerForm:objectSection:1'
> > > >> for 27ms
> > > >>
> > > >>
> > >
> >
> 'mainContent:detailViewer:detailAndSidebarContainer:detailContainer:bodyContainer:subtree:subtree:branches:158:subtree:branches:8:node:content:component:objectViewerForm:objectSection'
> > > >> for 28ms
> > > >>
> > > >>
> > >
> >
> 'mainContent:detailViewer:detailAndSidebarContainer:detailContainer:bodyContainer:subtree:subtree:branches:158:subtree:branches:8:node:content:component:objectViewerForm'
> > > >> for 29ms
> > > >>
> > > >>
> > >
> >
> 'mainContent:detailViewer:detailAndSidebarContainer:detailContainer:bodyContainer:subtree:subtree:branches:158:subtree:branches:8:node:content:component'
> > > >> for 29ms
> > > >>
> > > >>
> > >
> >
> 'mainContent:detailViewer:detailAndSidebarContainer:detailContainer:bodyContainer:subtree:subtree:branches:158:subtree:branches:8:node:content'
> > > >> for 36ms
> > > >>
> > > >>
> > >
> >
> 'mainContent:detailViewer:detailAndSidebarContainer:detailContainer:bodyContainer:subtree:subtree:branches:158:subtree:branches:8:node'
> > > >> for 36ms
> > > >>
> > > >>
> > >
> >
> 'mainContent:detailViewer:detailAndSidebarContainer:detailContainer:bodyContainer:subtree:subtree:branches:158:subtree:branches:8:subtree:branches'
> > > >> for 0ms
> > > >>
> > > >>
> > >
> >
> 'mainContent:detailViewer:detailAndSidebarContainer:detailContainer:bodyContainer:subtree:subtree:branches:158:subtree:branches:8:subtree'
> > > >> for 1ms
> > > >>
> > > >>
> > >
> >
> 'mainContent:detailViewer:detailAndSidebarContainer:detailContainer:bodyContainer:subtree:subtree:branches:158:subtree:branches:8'
> > > >> for 37ms
> > > >>
> > > >>
> > >
> >
> 'mainContent:detailViewer:detailAndSidebarContainer:detailContainer:bodyContainer:subtree:subtree:branches:158:subtree:branches'
> > > >> for 340ms
> > > >>
> > > >>
> > >
> >
> 'mainContent:detailViewer:detailAndSidebarContainer:detailContainer:bodyContainer:subtree:subtree:branches:158:subtree'
> > > >> for 340ms
> > > >>
> > > >>
> > >
> >
> 'mainContent:detailViewer:detailAndSidebarContainer:detailContainer:bodyContainer:subtree:subtree:branches:158'
> > > >> for 359ms
> > > >>
> > > >> Cheers
> > > >> Lasse
> > > >>
> > > >
> > > >
> > >
> >
>

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