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From "Xiaoming Shi (JIRA)" <j...@apache.org>
Subject [jira] Created: (AXIS2-4978) Copying data from inputStream to OuputStream needs appropriate buffer size
Date Sun, 13 Mar 2011 02:21:00 GMT
Copying data from inputStream to OuputStream needs appropriate buffer size
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                 Key: AXIS2-4978
                 URL: https://issues.apache.org/jira/browse/AXIS2-4978
             Project: Axis2
          Issue Type: Bug
          Components: modules
    Affects Versions: 1.5.4
            Reporter: Xiaoming Shi


In the file 

./axis2-1.5.4/modules/tool/axis2-idea-plugin/src/main/java/org/apache/axis2/tools/wizardframe/WizardFrame.java
line:323

The buffer size is fixed at 1024 bytes.

To copy 10M data with 1024-byte buffer it takes 338,591,180 nano-second, while it takes 105,384,689
nano-second with a 10240-byte buffer.


Similar code can be found at:

 ./axis2-1.5.4/modules/kernel/src/org/apache/axis2/util/IOUtils.java
./axis2-1.5.4/modules/kernel/src/org/apache/axis2/classloader/IoUtil.java
./axis2-1.5.4/modules/kernel/src/org/apache/axis2/classloader/JarResourceLocation.java
./axis2-1.5.4/modules/tool/axis2-idea-plugin/src/main/java/org/apache/axis2/tools/wizardframe/WizardFrame.java


This is similar to the Apache Bug https://issues.apache.org/bugzilla/show_bug.cgi?id=32546

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