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Daniel.Sun updated GROOVY-7977:
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Attachment: text.html
Grails supports outputing JOSN via {{render airport as JSON}}, if the code is
executed concurrently in some big site, the concurrency will reduce to some
extent.
在 "Daniel.Sun (JIRA)" <j...@apache.org>，2016年10月28日 上午3:47写道：
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https://issues.apache.org/jira/browse/GROOVY-7977?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daniel.Sun updated GROOVY-7977:
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Attachment: text.html
I'm not sure how much performance can be improved, it depends on specific
senario, so this is just a minor proposal.
在 "John Wagenleitner (JIRA)" <j...@apache.org>，2016年10月28日 上午1:32写道：
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John Wagenleitner commented on GROOVY-7977:
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I didn't look in great detail, but it seems the {{LRUCache}} is used in
{{Closure}} to support a some bounded (atmost/between) memoize functions. The
{{ProxyGenerator}} appears to use for caching proxies for {{asType}} calls. I
am not sure that putting a more high performance LRU cache would have a
significant impact on general performance that would make it worth taking on a
new dependency or porting over classes from a 3rd party library to include in
core. As I think was suggested on the mailing list, having some basic
performance numbers showing the benefit would be useful information to have.
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> Refine the implementation of LRUCache
> -------------------------------------
>
> Key: GROOVY-7977
> URL: https://issues.apache.org/jira/browse/GROOVY-7977
> Project: Groovy
> Issue Type: Improvement
> Affects Versions: 2.4.7
> Reporter: Daniel.Sun
> Priority: Minor
> Attachments: text.html, text.html, text.html
>
>
> I found the LRUCache that Groovy is using is not efficient enough
> because it is based on Collections.synchronizedMap, the LRUCache is used by
> some important classes(e.g. ProxyGenerator, Closure), so it can impact the
> performance somehow.
> I propose to replace the implementation with
> Caffeine(https://github.com/ben-manes/caffeine), which is a high performance
> caching library for Java 8 and licensed under APL2.
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