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From "Dawid Weiss (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-871) ISOLatin1AccentFilter a bit slow
Date Tue, 21 Aug 2007 08:01:40 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-871?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12521353
] 

Dawid Weiss commented on LUCENE-871:
------------------------------------

To clarify: depending on the compiler/ hotspot you may get linear time (tableswitch), O(log(N))
(binarysearch) or O(N) (linearsearch). The exact checks which route is followed is beyond
me, but the JVM sources are out there, so I guess it's possible to check.

> ISOLatin1AccentFilter a bit slow
> --------------------------------
>
>                 Key: LUCENE-871
>                 URL: https://issues.apache.org/jira/browse/LUCENE-871
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: Analysis
>    Affects Versions: 1.9, 2.0.0, 2.0.1, 2.1, 2.2
>            Reporter: Ian Boston
>            Assignee: Michael McCandless
>             Fix For: 2.3
>
>         Attachments: fasterisoremove1.patch, fasterisoremove2.patch, ISOLatin1AccentFilter.java.patch,
LUCENE-871.take4.patch
>
>
> The ISOLatin1AccentFilter is a bit slow giving 300+ ms responses when used in a highligher
for output responses.
> Patch to follow

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