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From "Filipe Manana (JIRA)" <j...@apache.org>
Subject [jira] Commented: (COUCHDB-913) Caching of BTree nodes and documents
Date Mon, 29 Nov 2010 13:36:01 GMT

    [ https://issues.apache.org/jira/browse/COUCHDB-913?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12964747#action_12964747
] 

Filipe Manana commented on COUCHDB-913:
---------------------------------------

Forgot to mention, the tests done before with caching had an hit rate of about 99.9%.

Also, 2 relaximation tests with only the documents cache enabled (of size 16Mb):

(small docs) -> http://graphs.mikeal.couchone.com/#/graph/5c859b3e7d1b9bd0488cfe2711044281
 
 
(large docs) -> http://graphs.mikeal.couchone.com/#/graph/5c859b3e7d1b9bd0488cfe27110439d8



> Caching of BTree nodes and documents
> ------------------------------------
>
>                 Key: COUCHDB-913
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-913
>             Project: CouchDB
>          Issue Type: Improvement
>            Reporter: Filipe Manana
>            Assignee: Filipe Manana
>         Attachments: cache-perf-tests.tar.gz
>
>
> The following patch adds optional caching of BTree nodes (for both DBs and view indexes)
and documents:
> http://github.com/fdmanana/couchdb/commit/c6361d1e0d86942fc86350bea9ca1e8d7539c1b3
> Look at the new parameters introduced in default.ini.tpl.in for more details.
> This is based on the work initially done by Randall Leeds, found at:
> http://github.com/tilgovi/couchdb/commits/forevercache
> I'll not commit it before 1.1 nor without any feedback.
> cheers

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