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Product Version: NetBeans IDE Dev (Build 20080828105910) Java: 1.6.0_10-beta; Java HotSpot(TM) Client VM 11.0-b11 System: Linux version 2.6.24-19-generic running on i386; UTF-8; en_US (nb) Userdir: /usr/local/home/tomas/.netbeans/dev ------------------------------- - have a large web project (depending on ~50 j2se projects or JARs, web pages contain ~1000 items, sources not so large) - have it opened in IDE (j2se + web) with its depending j2se projects - expand web project node, try to navigate through its subnodes - CPU runs 100%, and you will notice lags when navigating through nodes, especially when compared with (also large) j2se project. (e.g. try to press down arrow three times - in j2se project focus moves down the nodes instantly, in webproject there's a delay after which focus moves directly from first to fourth node)
Could this be related to issue 145464?
not sure, right click on project node is almost instant (by this i mean taking cca ~1-2 sec :-)), i did not spot any long-time freeze.
I see. BTW, do you know if this is a recent regression, or a longer term problem? Adding also Tomas M to cc.
Would it be possible to attach several thread dumps? Thanks.
pjiricka: No idea, never worked with web projects before:) tmysik: can give it a try, but I am not sure if i have fast enough fingers to switch into console and generate TD during moving through nodes.
well, i moved the project to a NTFS filesystem and opened in IDE under WinXP -> performance got significantly even worse, jumping over the nodes produces even ~2sec delay. In this environment is delay noticeable also for big J2se projects.
attaching captured thread dumps: td1 - captured during invoking popup on project node (takes ~5sec, on java app is popup instant) td2 - captured during jumping on webproject nodes (subnodes of project)
Created attachment 68639 [details] td1
Created attachment 68641 [details] td2
Would it be possible to upload ZIPped test projects somewhere so that I can play with this? Looking at thread dumps I can see one thing to fix which should improve performance: PetrH, in http://hg.netbeans.org/main/rev/760ed5f34f01 in WebActionProvider.isActionEnabled you introduced call to project.getWebProjectProperties(). It is quite unobvious but WebProjectProperties class should be used only by project customizer. Creation of WebProjectProperties is never cached and its constructor is quite expensive (dozens of customizer fields are initialized; see also issue 145464). WebActionProvider should use directly AntProjectHelper. I will fix that and also other calls to WebProjectProperties.
I do not have test data to prove that this has been fixed but very likely it was. Please reopen if still slow. Locally fixed as #0d27e2dd0c64. Will be pushed to main later today.
*** Issue 145464 has been marked as a duplicate of this issue. ***
tried this in recent trunk, and *subjectively* feels much better. Will try also on XP, where performance was really weak. And if also performance team does not plan to do any measuring, i'm for to marked as verified.
..on Win XP also fine, so if there are no objections from perf team, i will mark verified.
Integrated into 'main-golden', available in build *200809011401* on http://bits.netbeans.org/dev/nightly/ Changeset: http://hg.netbeans.org/main/rev/0d27e2dd0c64 User: David Konecny <dkonecny@netbeans.org> Log: #145546 - weak performance when navigating through nodes of (large) web project. Removed all calls to WebProjectProperties and made it package private.
Integrated into 'main-golden', will be available in build *200809050201* on http://bits.netbeans.org/dev/nightly/ (upload may still be in progress) Changeset: http://hg.netbeans.org/main/rev/c06c074cea52 User: David Konecny <dkonecny@netbeans.org> Log: #145546 - make sure other project type do not have similar problem (in future)
thanks,navigation between nodes in web project is not problem any more, verified in 20081007