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https://issues.apache.org/jira/browse/HBASE-17994?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16107092#comment-16107092
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Guanghao Zhang commented on 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 asyncScan 1
./bin/hbase org.apache.hadoop.hbase.PerformanceEvaluation --rows=100000
--nomapred --asyncPrefetch=True scan 1
{code}
Scan test result.
|| ||Test1|| Test2 || Test3 || Test4|| Test5||
|scan| 12.21 | 14.32 | 13.25 | 13.07 | 11.83 |
|asyncScan| 9.33 | 8.67 | 8.69 | 8.87 | 8.39|
|scan with prefetch=True | 37.36 | 37.88 | 37.56 | 37.66 | 38.28 |
For the old blocking scan, there are performance issues when prefetch is
true......
> Add async client test to Performance Evaluation tool
> ----------------------------------------------------
>
> Key: HBASE-17994
> URL: https://issues.apache.org/jira/browse/HBASE-17994
> Project: HBase
> Issue Type: Sub-task
> Reporter: Guanghao Zhang
> Assignee: Guanghao Zhang
> Fix For: 3.0.0, 2.0.0-alpha-2
>
> Attachments: HBASE-17994.master.001.patch,
> HBASE-17994.master.002.patch
>
>
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