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From "Marcel Reutegger (JIRA)" <j...@apache.org>
Subject [jira] Updated: (JCR-1222) Index nodes in parallel
Date Tue, 20 Nov 2007 13:56:42 GMT

     [ https://issues.apache.org/jira/browse/JCR-1222?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Marcel Reutegger updated JCR-1222:
----------------------------------

    Attachment: diagram.jpg

The diagram shows the running times for re-indexing 20'000 nodes.

The first test used nodes with about 2kB of text, whereas the second test used text with about
12kB text.

Each test was performed with:
- process bound to single core
- process uses both cores with current codebase
- process uses both cores with changes from JCR-1222

> Index nodes in parallel
> -----------------------
>
>                 Key: JCR-1222
>                 URL: https://issues.apache.org/jira/browse/JCR-1222
>             Project: Jackrabbit
>          Issue Type: Improvement
>          Components: indexing
>            Reporter: Marcel Reutegger
>            Priority: Minor
>             Fix For: 1.4
>
>         Attachments: diagram.jpg
>
>
> CPUs with multiple cores are now standard and Jackrabbit should make use of it where
it makes sense. Analyzing content while a node is indexed is quite costly, but can be broken
easily into task that can be executed in parallel. E.g. index multiple nodes in parallel.

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