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From "Michael McCandless (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-1483) Change IndexSearcher to use MultiSearcher semantics for multiple subreaders
Date Mon, 22 Dec 2008 23:47:44 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-1483?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12658718#action_12658718
] 

Michael McCandless commented on LUCENE-1483:
--------------------------------------------

Results with topN=10:

||numSeg||index||sortBy||method||query||topN||hits||warm||qps||warmnew||qpsnew||pctg||
|1|simple|country|val|text|10|2000000|   0.6|  10.7|   0.7|  11.7|  9.3%|
|1|simple|country|ord|text|10|2000000|   0.6|  10.7|   0.6|  13.8| 29.0%|
|1|simple|country|ordval|text|10|2000000|   0.6|  10.7|   0.6|  13.3| 24.3%|
|1|simple|country|orddem|text|10|2000000|   0.6|  10.7|   0.7|  13.0| 21.5%|
|1|wiki|title|val|147|10|   4984|   2.1|3743.8|   2.3|2441.8|-34.8%|
|1|wiki|title|ord|147|10|   4984|   2.1|3743.8|   2.0|4426.2| 18.2%|
|1|wiki|title|ordval|147|10|   4984|   2.1|3743.8|   2.1|4352.7| 16.3%|
|1|wiki|title|orddem|147|10|   4984|   2.1|3743.8|   2.0|4063.6|  8.5%|
|1|wiki|title|val|text|10|  97191|   2.1| 144.2|   2.3|  39.1|-72.9%|
|1|wiki|title|ord|text|10|  97191|   2.1| 144.2|   2.1| 164.5| 14.1%|
|1|wiki|title|ordval|text|10|  97191|   2.1| 144.2|   2.1| 162.6| 12.8%|
|1|wiki|title|orddem|text|10|  97191|   2.1| 144.2|   2.1| 157.3|  9.1%|
|1|wiki|title|val|1|10| 386435|   2.1|  51.2|   2.4|  13.6|-73.4%|
|1|wiki|title|ord|1|10| 386435|   2.1|  51.2|   2.1|  65.7| 28.3%|
|1|wiki|title|ordval|1|10| 386435|   2.1|  51.2|   2.1|  64.7| 26.4%|
|1|wiki|title|orddem|1|10| 386435|   2.1|  51.2|   2.1|  60.4| 18.0%|
||numSeg||index||sortBy||method||query||topN||hits||warm||qps||warmnew||qpsnew||pctg||
|10|simple|country|val|text|10|2000000|   0.7|  10.4|   0.6|  11.6| 11.5%|
|10|simple|country|ord|text|10|2000000|   0.7|  10.4|   0.6|  13.6| 30.8%|
|10|simple|country|ordval|text|10|2000000|   0.7|  10.4|   0.6|  13.1| 26.0%|
|10|simple|country|orddem|text|10|2000000|   0.7|  10.4|   0.6|  13.1| 26.0%|
|10|wiki|title|val|147|10|   4984|  12.5|3004.5|   2.5|1732.9|-42.3%|
|10|wiki|title|ord|147|10|   4984|  12.5|3004.5|   2.1|3067.2|  2.1%|
|10|wiki|title|ordval|147|10|   4984|  12.5|3004.5|   2.1|3283.5|  9.3%|
|10|wiki|title|orddem|147|10|   4984|  12.5|3004.5|   2.1|3237.9|  7.8%|
|10|wiki|title|val|text|10|  97191|  12.7| 139.4|   2.4|  38.6|-72.3%|
|10|wiki|title|ord|text|10|  97191|  12.7| 139.4|   2.1| 159.5| 14.4%|
|10|wiki|title|ordval|text|10|  97191|  12.7| 139.4|   2.1| 160.5| 15.1%|
|10|wiki|title|orddem|text|10|  97191|  12.7| 139.4|   2.1| 154.0| 10.5%|
|10|wiki|title|val|1|10| 386435|  12.7|  50.3|   2.5|  15.6|-69.0%|
|10|wiki|title|ord|1|10| 386435|  12.7|  50.3|   2.1|  64.8| 28.8%|
|10|wiki|title|ordval|1|10| 386435|  12.7|  50.3|   2.1|  64.0| 27.2%|
|10|wiki|title|orddem|1|10| 386435|  12.7|  50.3|   2.1|  59.4| 18.1%|
||numSeg||index||sortBy||method||query||topN||hits||warm||qps||warmnew||qpsnew||pctg||
|100|simple|country|val|text|10|2000000|   1.0|   8.8|   2.8|   9.4|  6.8%|
|100|simple|country|ord|text|10|2000000|   1.0|   8.8|   0.6|  11.1| 26.1%|
|100|simple|country|ordval|text|10|2000000|   1.0|   8.8|   0.6|  10.7| 21.6%|
|100|simple|country|orddem|text|10|2000000|   1.0|   8.8|   0.6|  10.7| 21.6%|
|100|wiki|title|val|147|10|   4984|  94.6|1066.9|   3.3| 454.8|-57.4%|
|100|wiki|title|ord|147|10|   4984|  94.6|1066.9|   2.1| 519.2|-51.3%|
|100|wiki|title|ordval|147|10|   4984|  94.6|1066.9|   2.1| 692.5|-35.1%|
|100|wiki|title|orddem|147|10|   4984|  94.6|1066.9|   2.1| 778.1|-27.1%|
|100|wiki|title|val|text|10|  97191|  94.9| 110.2|   2.7|  38.9|-64.7%|
|100|wiki|title|ord|text|10|  97191|  94.9| 110.2|   2.1| 122.8| 11.4%|
|100|wiki|title|ordval|text|10|  97191|  94.9| 110.2|   2.1| 126.3| 14.6%|
|100|wiki|title|orddem|text|10|  97191|  94.9| 110.2|   2.1| 124.7| 13.2%|
|100|wiki|title|val|1|10| 386435|  94.3|  47.9|   2.8|  15.8|-67.0%|
|100|wiki|title|ord|1|10| 386435|  94.3|  47.9|   2.1|  59.1| 23.4%|
|100|wiki|title|ordval|1|10| 386435|  94.3|  47.9|   2.2|  58.9| 23.0%|
|100|wiki|title|orddem|1|10| 386435|  94.3|  47.9|   2.2|  54.9| 14.6%|


> Change IndexSearcher to use MultiSearcher semantics for multiple subreaders
> ---------------------------------------------------------------------------
>
>                 Key: LUCENE-1483
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1483
>             Project: Lucene - Java
>          Issue Type: Improvement
>    Affects Versions: 2.9
>            Reporter: Mark Miller
>            Priority: Minor
>         Attachments: LUCENE-1483.patch, LUCENE-1483.patch, LUCENE-1483.patch, LUCENE-1483.patch,
LUCENE-1483.patch, LUCENE-1483.patch, LUCENE-1483.patch, LUCENE-1483.patch, LUCENE-1483.patch,
LUCENE-1483.patch, LUCENE-1483.patch, LUCENE-1483.patch, LUCENE-1483.patch, LUCENE-1483.patch,
LUCENE-1483.patch, LUCENE-1483.patch, LUCENE-1483.patch, LUCENE-1483.patch, sortBench.py,
sortCollate.py
>
>
> FieldCache and Filters are forced down to a single segment reader, allowing for individual
segment reloading on reopen.

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