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From "Robert Muir (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-2886) Adaptive Frame Of Reference
Date Fri, 04 Feb 2011 15:06:28 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-2886?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12990573#comment-12990573
] 

Robert Muir commented on LUCENE-2886:
-------------------------------------

Here are my performance results, same setup (-server, etc)/index etc as Mike except
I'm using windows 64-bit (1.6.0_23/Vista), and I do not have an SSD, just a normal hard disk.
Using SimpleFS:
||Query||QPS bulkVint||QPS simple64Varint||Pct diff||||
|+united +states|10.95|10.32|{color:red}-5.8%{color}|
|"united states"~3|3.78|3.67|{color:red}-2.7%{color}|
|"united states"|6.81|6.71|{color:red}-1.5%{color}|
|doctimesecnum:[10000 TO 60000]|8.76|8.81|{color:green}0.5%{color}|
|spanNear([unit, state], 10, true)|22.42|22.92|{color:green}2.3%{color}|
|uni*|13.75|14.22|{color:green}3.4%{color}|
|unit*|24.89|25.86|{color:green}3.9%{color}|
|united~0.75|7.06|7.36|{color:green}4.4%{color}|
|unit~0.7|14.11|14.73|{color:green}4.4%{color}|
|united~0.6|4.34|4.53|{color:green}4.4%{color}|
|unit~0.5|8.16|8.55|{color:green}4.7%{color}|
|states|29.99|31.85|{color:green}6.2%{color}|
|spanFirst(unit, 5)|88.27|93.78|{color:green}6.2%{color}|
|united states|9.97|10.60|{color:green}6.4%{color}|
|doctitle:.*[Uu]nited.*|2.34|2.49|{color:green}6.6%{color}|
|u*d|5.54|6.05|{color:green}9.3%{color}|
|un*d|12.36|13.59|{color:green}9.9%{color}|
|+nebraska +states|47.58|62.53|{color:green}31.4%{color}|

Using MMap:
||Query||QPS bulkVint||QPS simple64Varint||Pct diff||||
|+united +states|13.88|11.95|{color:red}-13.9%{color}|
|spanFirst(unit, 5)|123.50|106.84|{color:red}-13.5%{color}|
|"united states"~3|4.64|4.17|{color:red}-10.1%{color}|
|"united states"|8.90|8.19|{color:red}-8.0%{color}|
|doctimesecnum:[10000 TO 60000]|10.72|9.98|{color:red}-7.0%{color}|
|spanNear([unit, state], 10, true)|33.70|31.63|{color:red}-6.1%{color}|
|uni*|17.26|16.30|{color:red}-5.5%{color}|
|states|37.14|35.40|{color:red}-4.7%{color}|
|unit*|29.96|28.57|{color:red}-4.7%{color}|
|united states|11.52|11.22|{color:red}-2.6%{color}|
|united~0.75|10.87|10.75|{color:red}-1.1%{color}|
|united~0.6|7.69|7.68|{color:red}-0.1%{color}|
|doctitle:.*[Uu]nited.*|3.83|3.91|{color:green}2.2%{color}|
|un*d|16.83|17.26|{color:green}2.6%{color}|
|unit~0.5|16.52|17.05|{color:green}3.2%{color}|
|u*d|8.51|9.08|{color:green}6.7%{color}|
|unit~0.7|26.83|28.93|{color:green}7.8%{color}|
|+nebraska +states|83.69|113.19|{color:green}35.2%{color}|



> Adaptive Frame Of Reference 
> ----------------------------
>
>                 Key: LUCENE-2886
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2886
>             Project: Lucene - Java
>          Issue Type: New Feature
>          Components: Codecs
>            Reporter: Renaud Delbru
>             Fix For: 4.0
>
>         Attachments: LUCENE-2886_simple64.patch, LUCENE-2886_simple64_varint.patch, lucene-afor.tar.gz
>
>
> We could test the implementation of the Adaptive Frame Of Reference [1] on the lucene-4.0
branch.
> I am providing the source code of its implementation. Some work needs to be done, as
this implementation is working on the old lucene-1458 branch. 
> I will attach a tarball containing a running version (with tests) of the AFOR implementation,
as well as the implementations of PFOR and of Simple64 (simple family codec working on 64bits
word) that has been used in the experiments in [1].
> [1] http://www.deri.ie/fileadmin/documents/deri-tr-afor.pdf

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