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https://issues.apache.org/jira/browse/HBASE-18500?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16110373#comment-16110373
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Guanghao Zhang commented on HBASE-18500:
----------------------------------------
{code}
./bin/hbase org.apache.hadoop.hbase.PerformanceEvaluation --rows=100000
--nomapred --autoFlush=True randomWrite 1
{code}
Mean latency(us).
|| || Test1 || Test2 || Test3 || Test4 || Test5 ||
| w/o patch | 153.70 | 158.64 | 168.57 | 152.04 | 147.29 |
| w/ v1 patch | 111.03 | 115.34 | 120.70 | 124.56 | 119.86 |
50th latency(us).
|| || Test1 || Test2 || Test3 || Test4 || Test5 ||
| w/o patch | 102.00 | 105.00 | 113.00 | 122.00 | 114.00 |
| w/ v1 patch | 82.00 | 88.00 | 92.00 | 94.00 | 96.00 |
99th latency(us).
|| || Test1 || Test2 || Test3 || Test4 || Test5 ||
| w/o patch | 419.00 | 442.00 | 407.00 | 450.00 | 416.00 |
| w/ v1 patch | 322.00 | 305.00 | 290.00 | 304.00 | 276.00 |
> Performance issue: Don't use BufferedMutator for HTable's put method
> --------------------------------------------------------------------
>
> Key: HBASE-18500
> URL: https://issues.apache.org/jira/browse/HBASE-18500
> Project: HBase
> Issue Type: Bug
> Reporter: Guanghao Zhang
> Assignee: Guanghao Zhang
> Attachments: HBASE-18500-v1.patch
>
>
> Copied the test result from HBASE-17994.
> Run start-hbase.sh in my local computer and use the default config to test
> with PE tool.
> {code}
> ./bin/hbase org.apache.hadoop.hbase.PerformanceEvaluation --rows=100000
> --nomapred --autoFlush=True randomWrite 1
> ./bin/hbase org.apache.hadoop.hbase.PerformanceEvaluation --rows=100000
> --nomapred --autoFlush=True asyncRandomWrite 1
> {code}
> Mean latency test result.
> || || Test1 || Test2 || Test3 || Test4 || Test5 ||
> | randomWrite | 164.39 | 161.22 | 164.78 | 140.61 | 151.69 |
> | asyncRandomWrite | 122.29 | 125.58 | 122.23 | 113.18 | 123.02 |
> 50th latency test result.
> || || Test1 || Test2 || Test3 || Test4 || Test5 ||
> | randomWrite | 130.00 | 125.00 | 123.00 | 112.00 | 121.00 |
> | asyncRandomWrite | 95.00 | 97.00 | 95.00 | 88.00 | 95.00 |
> 99th latency test result.
> || || Test1 || Test2 || Test3 || Test4 || Test5 ||
> | randomWrite | 600.00 | 600.00 | 650.00 | 404.00 | 425.00 |
> | asyncRandomWrite | 339.00 | 327.00 | 297.00 | 311.00 | 318.00 |
> In our internal 0.98 branch, the PE test result shows the async write has the
> almost same latency with the blocking write. But for master branch, the
> result shows the async write has better latency than the blocking client.
> Take a look about the code, I thought the difference is the BufferedMutator.
> For master branch, HTable don't have a write buffer and all write request
> will be flushed directly. And user can use BufferedMutator when user want to
> perform client-side buffering of writes. For the performance issue
> (autoFlush=True), I thought we can use rpc caller directly in HTable's put
> method. Thanks.
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