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Bug 183237

Summary:	Recent nightlies start hogging CPU after a while
Product:	ide	Reporter:	tnleeuw <tnleeuw>
Component:	Performance	Assignee:	issues@performance <issues>
Status:	CLOSED DUPLICATE
Severity:	normal
Priority:	P2
Version:	3.x
Hardware:	All
OS:	All
Issue Type:	DEFECT	Exception Reporter:
Attachments:	First snapshot of thread state when NB is slow Second snapshot of thread state when NB is slow

Description tnleeuw 2010-03-31 07:43:28 UTC

Product Version = NetBeans IDE Dev (Build 201003290201)
Operating System = Windows Vista version 6.0 running on x86
Java; VM; Vendor = 1.6.0_18
Runtime = Java HotSpot(TM) Client VM 16.0-b13

Recent nightly builds of NetBeans start hogging the CPU after running for some hours. The editor becomes so slow it's virtually unusable, and the performance of the entire system suffers.
NetBeans has to be restarted to 'fix' this.

Comment 1 tnleeuw 2010-03-31 07:48:48 UTC

Uploaded 2 threaddump snapshots of NetBeans when it's slow and hogging the CPU.

Comment 2 tnleeuw 2010-03-31 07:48:53 UTC

Created attachment 96395 [details]
First snapshot of thread state when NB is slow

Comment 3 tnleeuw 2010-03-31 07:48:58 UTC

Created attachment 96396 [details]
Second snapshot of thread state when NB is slow

Comment 4 Tomas Pavek 2010-03-31 13:06:21 UTC

Looks like bug 183201.

*** This bug has been marked as a duplicate of bug 183201 ***

Comment 5 tnleeuw 2010-04-07 14:48:23 UTC

The same slowdowns still happen for me in nightly 201004070201 despite fix for bug 183201 having been integrated into main-golden in the nightly before. I've attached a new snapshot to bug 183201.