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From "Daniel Kulp (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CXF-2544) Performance degradation in attachment logic in CXF 2.2.4
Date Tue, 17 Nov 2009 02:19:39 GMT

    [ https://issues.apache.org/jira/browse/CXF-2544?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12778692#action_12778692
] 

Daniel Kulp commented on CXF-2544:
----------------------------------


This seems to have already been fixed in the 2.2.5 version currently being voted on:

dkulp@dilbert ~/tmp $ java -cp .:/tmp/apache-cxf-2.2.4/lib/cxf-manifest.jar CxfBug1
51,201.63 kb file created: /tmp/tesfile4006530662772200197
24.267 seconds
done
dkulp@dilbert ~/tmp $ java -cp .:/tmp/apache-cxf-2.2.5/lib/cxf-manifest.jar CxfBug1
51,201.63 kb file created: /tmp/tesfile6561428890710062154
0.202 seconds
done

> Performance degradation in attachment logic in CXF 2.2.4
> --------------------------------------------------------
>
>                 Key: CXF-2544
>                 URL: https://issues.apache.org/jira/browse/CXF-2544
>             Project: CXF
>          Issue Type: Bug
>    Affects Versions: 2.2.4
>            Reporter: aaron pieper
>         Attachments: CxfBug1.java
>
>
> AttachmentDeserializer attaches a DelegatingInputStream to the message, which contains
the attachment body. The performance of this InputStream has been significantly degraded from
CXF 2.2.2 to CXF 2.2.4. For example, a 55 megabyte file used to take around three seconds
to parse - now it takes over one minute.
> I've attached a performance test which demonstrates the issue, using an 8 megabyte file.
In CXF v2.2.2, this test takes a fraction of a second to run. In CXF v2.2.4, this test takes
about 10 seconds on my machine.
> I tried to track down the cause of the degradation. AttachmentDeserializer  line 206
calls "new InternetHeaders(stream)" which takes a long time to complete. Since CXF v2.2.2
and CXF v2.2.4 use the same version of this InternetHeaders class, I believe it must be a
change in the way the stream is being put together.

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