Karthik Ranganathan created HBASE-6874:
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Summary: Implement prefetching for scanners
Key: HBASE-6874
URL: https://issues.apache.org/jira/browse/HBASE-6874
Project: HBase
Issue Type: Improvement
Reporter: Karthik Ranganathan
Assignee: Karthik Ranganathan
I did some quick experiments by scanning data that should be completely in
memory and found that adding pre-fetching increases the throughput by about 50%
from 26MB/s to 39MB/s.
The idea is to perform the next in a background thread, and keep the result
ready. When the scanner's next comes in, return the pre-computed result and
issue another background read.
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