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https://issues.apache.org/jira/browse/HIVE-17573?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16310797#comment-16310797
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liyunzhang commented on HIVE-17573:
-----------------------------------
[~gopalv]:
It seems that on tpch_text_10(10g), there is no big difference between JDK9 and
JDK8 for [TPC-H Q6|
https://github.com/kellyzly/hive-testbench/blob/hive14/sample-queries-tpch/tpch_query6.sql]
on my machine( 1 node with CPU E5-2690 v2, 40 cores,62g )
jdk8: 54.189s
jdk9: 67.86s
{quote}
The performance difference seems to come from better JIT and better NUMA
handling.
{quote}
>From which tool, you can get above conclusion? Have you test it on machine
>with NUMA architecture?
> LLAP: JDK9 support fixes
> ------------------------
>
> Key: HIVE-17573
> URL: https://issues.apache.org/jira/browse/HIVE-17573
> Project: Hive
> Issue Type: Bug
> Components: llap
> Affects Versions: 3.0.0
> Reporter: Gopal V
> Assignee: Gopal V
>
> The perf diff between JDK8 -> JDK9 seems to be significant.
> TPC-H Q6 on JDK8 takes 32s on a single node + 1 Tb scale warehouse.
> TPC-H Q6 on JDK9 takes 19s on the same host + same data.
> The performance difference seems to come from better JIT and better NUMA
> handling.
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