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From "Yang Jie (Jira)" <j...@apache.org>
Subject [jira] [Comment Edited] (SPARK-34309) Use Caffeine instead of Guava Cache
Date Fri, 05 Feb 2021 10:09:01 GMT

    [ https://issues.apache.org/jira/browse/SPARK-34309?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17279548#comment-17279548
] 

Yang Jie edited comment on SPARK-34309 at 2/5/21, 10:08 AM:
------------------------------------------------------------

[~dongjoon] I use the code in [GetPutBenchmark|https://github.com/ben-manes/caffeine/blob/master/caffeine/src/jmh/java/com/github/benmanes/caffeine/cache/GetPutBenchmark.java]
to compare the performance of caffeine, guava cache, LinkedHashMap and ConcurrentLinkedHashMap,
the result as follows:

# read write (6 read and 2 write):

 !screenshot-1.png! 

# read only

 !image-2021-02-05-18-08-48-852.png! 


was (Author: luciferyang):
[~dongjoon] I use the code in [GetPutBenchmark|https://github.com/ben-manes/caffeine/blob/master/caffeine/src/jmh/java/com/github/benmanes/caffeine/cache/GetPutBenchmark.java]
to compare the performance of caffeine, guava cache, LinkedHashMap and ConcurrentLinkedHashMap,
the result as follows:

# read write (6 read and 2 write):

 !screenshot-1.png! 

# read only



> Use Caffeine instead of Guava Cache
> -----------------------------------
>
>                 Key: SPARK-34309
>                 URL: https://issues.apache.org/jira/browse/SPARK-34309
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core, SQL
>    Affects Versions: 3.2.0
>            Reporter: Yang Jie
>            Priority: Minor
>         Attachments: image-2021-02-05-18-08-48-852.png, screenshot-1.png
>
>
> Caffeine is a high performance, near optimal caching library based on Java 8, it is
used in a similar way to guava cache, but with better performance. The comparison results
are as follow are on the [caffeine benchmarks |https://github.com/ben-manes/caffeine/wiki/Benchmarks]
> At the same time, caffeine has been used in some open source projects like Cassandra,
Hbase, Neo4j, Druid, Spring and so on.
>  



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