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Bug 268793

Summary:	org.openide.nodes.FilterNode$FilterLookup$ProxyResult.allItems: LowPerformance took 43108 ms.
Product:	platform	Reporter:	stiffuser
Component:	Nodes	Assignee:	Jan Peska <JPESKA>
Status:	NEW ---
Severity:	normal	CC:	Fatal3rr0r, finnlewis, ilia
Priority:	P3	Keywords:	PERFORMANCE
Version:	Dev
Hardware:	All
OS:	All
Issue Type:	DEFECT	Exception Reporter:	183237
Attachments:	nps snapshot

Description stiffuser 2016-11-02 20:16:43 UTC

This issue was reported manually by stiffuser.
It already has 11 duplicates 


Build: NetBeans IDE Dev (Build 201605200002)
VM: OpenJDK 64-Bit Server VM, 25.91-b14, OpenJDK Runtime Environment, 1.8.0_91-8u91-b14-0ubuntu4~14.04-b14
OS: Linux

User Comments:
GUEST: juct create copy of file by ctrl+drag

GUEST: Copied 5 .woff2 files from document dir to project dir via the projects pane in Netbeans (by pressing CTRL while dragging the files to the window)

stiffuser: Selected a range of files in the project view

GUEST: Did a refactor and pressed cancel.

GUEST: i was moving my files from explorator into nebeans.

GUEST: its getting wvery slow

GUEST: Try to select Joomla!'s 28 files and mark as ignore in GIT

GUEST: Closed all open source files, the system just hung for al long time after

GUEST: Initializing NetBeans.

GUEST: I selected a file in a subdirectory of the source files, shift-selected 160 files and it froze there for about 6 seconds, highlighted them, and froze for another 6 seconds.



Maximum slowness yet reported was 136173 ms, average is 34165

Comment 1 stiffuser 2016-11-02 20:16:59 UTC

Created attachment 162735 [details]
nps snapshot