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Bug 185075 - 6.9 Beta unusable and taking 100% of CPU after hour or more of work
Summary: 6.9 Beta unusable and taking 100% of CPU after hour or more of work
Status: CLOSED DUPLICATE of bug 183832
Alias: None
Product: ide
Classification: Unclassified
Component: Performance (show other bugs)
Version: 3.x
Hardware: PC Linux
: P1 normal (vote)
Assignee: issues@performance
URL:
Keywords: REGRESSION
Depends on:
Blocks:
 
Reported: 2010-04-27 10:33 UTC by David Simonek
Modified: 2011-05-25 11:40 UTC (History)
1 user (show)

See Also:
Issue Type: DEFECT
Exception Reporter:

Attachments
profiler snapshot (12.72 KB, application/octet-stream)
2010-04-27 10:33 UTC, David Simonek 		Details
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Description David Simonek 2010-04-27 10:33:05 UTC 
Created attachment 98113 [details]
profiler snapshot

After hour or more of work with NB 6.9 Beta, system becomes unresponsive, unusable and is taking 100% CPU, even when it is left idle for several minutes. 

I have five opened Maven nbm projects, relatively small - app built on top of NB platform. The same project was OK with NB 6.8.

I'm attaching profiler snapshot taken when system was idle - you can see that nearly all time is spent in SelfSamplerAction, specifically in sun.management.ThreadImpl.dumpThread().
Comment 1 David Simonek 2010-04-27 10:35:33 UTC 
I forgot to add that NB memory meter shows high memory consumption when CPU is at 100%.
Comment 2 Tomas Hurka 2010-04-27 10:55:19 UTC 
Please try latest dev. build.
Comment 3 Tomas Hurka 2010-04-27 10:58:12 UTC 
One more thing - are you sure that this is NB 6.9 beta? Code-completion sampling should be disabled there and the snapshot clearly shows that it runs.
Comment 4 David Simonek 2010-04-27 11:28:57 UTC 
Yep, it's beta for sure:
Product Version: NetBeans IDE 6.9 Beta (Build 201004092101)
Java: 1.6.0_14-ea; Java HotSpot(TM) 64-Bit Server VM 14.0-b13
System: Linux version 2.6.31-20-generic running on amd64; UTF-8; en_US (nb)

I'll try to reproduce with latest dev build, thanks.
Comment 5 Tomas Hurka 2010-04-27 11:37:05 UTC 
This is the first NB 6.9 beta build. The last and official one is 201004200117.
Comment 6 Tomas Pavek 2010-04-27 11:58:49 UTC 
Code completion sampling was disabled in beta on April 14th.
http://hg.netbeans.org/release69_beta/rev/055321af1257

So with build 201004092101 you still experience a variant of bug 183832.

*** This bug has been marked as a duplicate of bug 183832 ***
Comment 7 David Simonek 2010-04-27 13:14:58 UTC 
I see, sorry for duplicate, I did search before filing but was unsuccessful. Thanks.