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From Vladimir Rodionov <vladrodio...@gmail.com>
Subject Beware of PREFIX_TREE block encoding
Date Sun, 20 Oct 2013 02:32:17 GMT
The scan performance is bad. 10 x slower on my tests than for blocks with
NONE encoding. I scan data directly from block cache through
StoreFileScanner (bypassing all StoreScanner/KeyValueHeap stuff). It should
be clearly stated  that this encoding degrades overall performance
significantly in favor of data size reduction and is suitable only for Gets
- not for Scans.

Best regards,
-Vladimir Rodionov


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