Reuse of buffers while reading stream and skipping stream
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Key: COMPRESS-172
URL: https://issues.apache.org/jira/browse/COMPRESS-172
Project: Commons Compress
Issue Type: Improvement
Components: Archivers
Affects Versions: 1.3
Reporter: Thomas Mair
Priority: Minor
Attachments: tarbuffer.patch
When reading a tar archive from a stream for each record a new buffer is
allocated. This will cause many new objects that later get collected by the
garbage collector. The same issue exists when we are skipping entries. Instead
of allocating new buffers we could reuse one single buffer. This saves some GC
overhead as well as the time needed to allocate new memory. I created a small
patch fixing this issue. I did not test this patch thoughtfully, but it should
not cause any trouble, as the buffers never leave their respective classes.
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