Guanghao Zhang created HBASE-18485:
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Summary: Performance issue: ClientAsyncPrefetchScanner is slower
than ClientSimpleScanner
Key: HBASE-18485
URL: https://issues.apache.org/jira/browse/HBASE-18485
Project: HBase
Issue Type: Bug
Reporter: Guanghao Zhang
Copied the test result from HBASE-17994.
{code}
./bin/hbase org.apache.hadoop.hbase.PerformanceEvaluation --rows=100000
--nomapred scan 1
./bin/hbase org.apache.hadoop.hbase.PerformanceEvaluation --rows=100000
--nomapred --asyncPrefetch=True scan 1
{code}
Mean latency.
|| ||Test1|| Test2 || Test3 || Test4|| Test5||
|scan| 12.21 | 14.32 | 13.25 | 13.07 | 11.83 |
|scan with prefetch=True | 37.36 | 37.88 | 37.56 | 37.66 | 38.28 |
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