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Bug 53853

Summary:	Non-linear masterfsfo.getChildren()
Product:	platform	Reporter:	Jaroslav Tulach <jtulach>
Component:	Filesystems	Assignee:	rmatous <rmatous>
Status:	RESOLVED FIXED
Severity:	blocker	CC:	issues
Priority:	P2	Keywords:	PERFORMANCE
Version:	4.x
Hardware:	PC
OS:	Linux
Issue Type:	DEFECT	Exception Reporter:
Bug Depends on:
Bug Blocks:	46900
Attachments:	tesilest showing that the time is not linear with # f Possible fix that replaces iteration over set of FileNames with hashcode lookup

Description Jaroslav Tulach 2005-01-23 20:06:34 UTC

During my work on issue 49600 and due to extreme
number of fileobjects I usually create in a folder
I have found out that  the masterfs fo's
getChildren() does not scale well. 

I think it is a huge problem. I am going to attach
a test and also sample patch that makes the test
to pass.

Comment 1 Jaroslav Tulach 2005-01-23 20:10:14 UTC

Created attachment 19886 [details]
tesilest showing that the time is not linear with # f

Comment 2 Jaroslav Tulach 2005-01-23 20:15:01 UTC

Created attachment 19887 [details]
Possible fix that replaces iteration over set of FileNames with hashcode lookup

Comment 3 rmatous 2005-02-07 11:03:24 UTC

Fixed according to patch (+ verified by attached test).

 /cvs/openide/masterfs/src/org/netbeans/modules/masterfs/filebasedfs/children/ChildrenSupport.java
new revision: 1.4; previous revision: 1.3