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Bug 270544

Summary:	org.openide.text.LineVector.unlockCheckUpdate: LowPerformance took 31900 ms.
Product:	platform	Reporter:	Vladimir Voskresensky <vv159170>
Component:	Text	Assignee:	Miloslav Metelka <mmetelka>
Status:	NEW ---
Severity:	normal	Keywords:	PERFORMANCE
Priority:	P3
Version:	Dev
Hardware:	All
OS:	All
Issue Type:	DEFECT	Exception Reporter:	228197
Attachments:	nps snapshot

Description Vladimir Voskresensky 2017-05-03 10:01:34 UTC

This issue was reported manually by vv159170.
It already has 6 duplicates 


Build: NetBeans IDE Dev (Build 20170503-77be6a2102ee)
VM: Java HotSpot(TM) 64-Bit Server VM, 25.121-b13, Java(TM) SE Runtime Environment, 1.8.0_121-b13
OS: Linux

User Comments:
vv159170: commented out 3K lines in 5K java file

vv159170: undo/redo Ctrl-/ (commneted out lines in file)

vv159170: uncomment in java

vv159170: regression in comment/uncomment lines?

vv159170: comment lines in Java files become recently very slow...

vv159170: comment or uncomment again...



Maximum slowness yet reported was 64792 ms, average is 40585

Comment 1 Vladimir Voskresensky 2017-05-03 10:01:40 UTC

Created attachment 164235 [details]
nps snapshot