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 >> > >
