lucene-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Robert Muir (JIRA)" <j...@apache.org>
Subject [jira] Updated: (LUCENE-2265) improve automaton performance by running on byte[]
Date Sun, 14 Feb 2010 14:51:27 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-2265?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Robert Muir updated LUCENE-2265:
--------------------------------

    Attachment: LUCENE-2265.patch

attached is a patch. at most it only improves performance around 10% for Latin-1 text.
I haven't benchmarked non-Latin test yet.

Even if its better, I am not sure we want to do this (is the performance worth the complexity?),
but all the tests pass.


> improve automaton performance by running on byte[]
> --------------------------------------------------
>
>                 Key: LUCENE-2265
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2265
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Search
>    Affects Versions: Flex Branch
>            Reporter: Robert Muir
>            Priority: Minor
>             Fix For: Flex Branch
>
>         Attachments: LUCENE-2265.patch
>
>
> Currently, when enumerating terms, automaton must convert entire terms from flex's native
utf-8 byte[] to char[] first, then step each char thru the state machine.
> we can make this more efficient, by allowing the state machine to run on byte[], so it
can return true/false faster.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


---------------------------------------------------------------------
To unsubscribe, e-mail: java-dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: java-dev-help@lucene.apache.org


Mime
View raw message