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From "Steffen Pingel (JIRA)" <j...@apache.org>
Subject [jira] Created: (HTTPCORE-78) ExpandleBuffer uses direct byte buffers
Date Tue, 05 Jun 2007 18:57:26 GMT
ExpandleBuffer uses direct byte buffers

                 Key: HTTPCORE-78
                 URL: https://issues.apache.org/jira/browse/HTTPCORE-78
             Project: HttpComponents Core
          Issue Type: Improvement
    Affects Versions: 4.0-alpha4
            Reporter: Steffen Pingel
            Priority: Minor

HttpCore allocates subtypes of ExpandleBuffer per connection for buffering requests and responses.
ExpandleBuffer creates a buffer using ByteBuffer.allocateDirect() which is initialized to
a certain size but may be resized as needed requiring the garbage collector to discard the
old buffer. 

According to the documentation for ByteBuffer, direct buffers are recommended for "large,
long-lived buffers that are subject to the underlying system's native I/O operations". It
seems that these buffers are rather short-lived and ByteBuffer.allocate() might be a better
choice for allocation. 

Another option would be to pass a factory for allocating and releasing buffers which could
reduce the number of allocations by reusing buffers.

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