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Bug 189961

Summary:	27s in system I/O
Product:	projects	Reporter:	Exceptions Reporter <exceptions_reporter>
Component:	Maven	Assignee:	Antonin Nebuzelsky <anebuzelsky>
Status:	RESOLVED WONTFIX
Severity:	normal	CC:	hmichel, sreimers, XVilka
Priority:	P3	Keywords:	PERFORMANCE
Version:	6.x
Hardware:	All
OS:	All
Issue Type:	DEFECT	Exception Reporter:	157807
Attachments:	nps snapshot

Description Exceptions Reporter 2010-08-28 10:00:03 UTC

Build: NetBeans IDE 6.9.1 (Build 201007282301)
VM: Java HotSpot(TM) Client VM, 16.3-b01, Java(TM) SE Runtime Environment, 1.6.0_20-b02
OS: Windows XP

User Comments:
GUEST: Compling Vaadin Widgetset on Maven Build

XVilka: adding assembler sources as existing project



Maximum slowness yet reported was 27532 ms, average is 8090

Comment 1 Exceptions Reporter 2010-08-28 10:00:07 UTC

Created attachment 101729 [details]
nps snapshot

Comment 2 Jaroslav Tulach 2010-08-29 16:51:11 UTC

AWT thread is blocked by Maven. There are other two threads releated to maven that do something. Except maven, there does not seem to be any othe activity.

Comment 3 Antonin Nebuzelsky 2010-09-21 12:23:39 UTC

All the snapshots show enormous time spent in system I/O calls.

e.g. >5000ms spent in two calls to java.io.WinNTFileSystem.getBooleanAttributes, and similar.

System is overloaded with other processes doing I/O.