Lars Hofhansl created HBASE-7279:
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Summary: Avoid copying the rowkey in RegionScanner, StoreScanner,
and ScanQueryMatcher
Key: HBASE-7279
URL: https://issues.apache.org/jira/browse/HBASE-7279
Project: HBase
Issue Type: Bug
Reporter: Lars Hofhansl
Assignee: Lars Hofhansl
Fix For: 0.96.0, 0.94.4
Did some profiling again.
I we can gain some performance [1] when passing buffer, rowoffset, and
rowlength instead of making a copy of the row key.
That way we can also remove the row key caching (and this patch also removes
the timestamps caching). Considering the sheer number in which we create KVs,
every byte save is good.
[1] (15-20% when data is in the block cache we setup a Filter such that only a
single row is returned to the client).
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