Summary:
Every time after a compaction/flush finish, we issue user reads to put the table into block cache which includes a couple of IO that read footer, index blocks, meta block, etc. So we implement Prefetch here to reduce IO.
Closes https://github.com/facebook/rocksdb/pull/2196
Differential Revision: D4931782
Pulled By: lightmark
fbshipit-source-id: 5a13d58dcab209964352322217193bbf7ff78149
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Aaron Gao8 years agocommitted byFacebook Github Bot