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https://issues.apache.org/jira/browse/CXF-1916?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daniel Kulp reassigned CXF-1916:
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Assignee: Daniel Kulp
> Mtom Performance - MimeBodyPartInputStream performs slow
> --------------------------------------------------------
>
> Key: CXF-1916
> URL: https://issues.apache.org/jira/browse/CXF-1916
> Project: CXF
> Issue Type: Improvement
> Components: Core
> Affects Versions: 2.0.7
> Environment: Windows XP, Java SE 1.6.0_06
> Reporter: Mayank Mishra
> Assignee: Daniel Kulp
> Priority: Minor
> Attachments: MimeBodyPartInputStream.java, TestMBPIS.java
>
>
> MimeBodyPartInputStream doesn't implements read(byte[]), hence it delegates
> it to parent InputStream class. InputStream's read(byte[]) runs over a for
> loop, eventually delegating to PushBackInputStream, which reads a single byte
> and performs boundary matching over that Byte.
> A simple test program which takes the time taken by the
> MimeBodyPartInputStream to read from a loaded buffer shows that
> MimeBodyPartInputStream takes ~1200-1400 ms to read a 12MB buffer. On the
> other hand, an InputStream takes around ~100-150ms to do so. I can understand
> that MimeBodyPartInputStream has the logic of detecting a probable boundary
> and it performs multiple if checks to do so, also it calls read and unread
> over PushBackInputStream. But counting the reads and unreads also, the time
> of MimeBodyPartInputStream looks poor.
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