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From "Yonik Seeley (Issue Comment Edited) (JIRA)" <j...@apache.org>
Subject [jira] [Issue Comment Edited] (SOLR-2906) Implement LFU Cache
Date Mon, 19 Dec 2011 21:03:31 GMT

    [ https://issues.apache.org/jira/browse/SOLR-2906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13172605#comment-13172605
] 

Yonik Seeley edited comment on SOLR-2906 at 12/19/11 9:01 PM:
--------------------------------------------------------------

Actually, I was thinking count >>= 1 (divide by 2).
We could make it optional (timeDecay=true), but my gut feeling says it should be on by default.
                
      was (Author: yseeley@gmail.com):
    Actually, I was thinking count >>= 1 (divide by 2).
We could make it optional, but my gut feeling says it should be on by default.
                  
> Implement LFU Cache
> -------------------
>
>                 Key: SOLR-2906
>                 URL: https://issues.apache.org/jira/browse/SOLR-2906
>             Project: Solr
>          Issue Type: Sub-task
>          Components: search
>    Affects Versions: 3.4
>            Reporter: Shawn Heisey
>            Assignee: Erick Erickson
>            Priority: Minor
>         Attachments: ConcurrentLFUCache.java, LFUCache.java, SOLR-2906.patch, SOLR-2906.patch,
SOLR-2906.patch, SOLR-2906.patch, TestLFUCache.java
>
>
> Implement an LFU (Least Frequently Used) cache as the first step towards a full ARC cache

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