Robert Muir created LUCENE-6090:
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Summary: don't wrap Deflater in CompressionMode
Key: LUCENE-6090
URL: https://issues.apache.org/jira/browse/LUCENE-6090
Project: Lucene - Core
Issue Type: Improvement
Reporter: Robert Muir
This outputs zlib header/footer and computes adler32 for each block. The space
is nothing, but the adler32 computation on encode/decode has a cost, and we
already have our own checksum.
Since we currently compress/decompress at merge, this reduces the overall time
of merging stored fields with deflate vs lz4, from 1.8x to 1.5x, reducing some
of the pain.
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