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https://issues.apache.org/jira/browse/HBASE-18485?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Guanghao Zhang updated HBASE-18485:
-----------------------------------
Status: Patch Available (was: Open)
> 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
> Assignee: Guanghao Zhang
> Attachments: HBASE-18485-v1.patch
>
>
> 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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