Name: blog-sortminmax-perf
Owner: Lucidworks
Description: Performance comparison of sorting on single valued (long) fields compared to sorting on the 2 arg "field" function added in SOLR-2522
Created: 2015-09-09 23:16:56.0
Updated: 2017-10-06 07:57:17.0
Pushed: 2015-09-09 23:18:26.0
Homepage: null
Size: 136
Language: Perl
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Performance comparison of sorting on single valued (long) fields compared to sorting on the 2 arg “field” function added in SOLR-2522 (with the bug fixes applied in SOLR-8001).
Full Writeup at lucidworks.com
The random sample data generated be the included scripts indexes documents with multiple values in a “multi_l” field, and relies on updated processors to populate the corresponding “min_l” and “max_l” fields.
Note that in addition to comparing sort options such as min_l asc vs field(multi_l,min) asc, comparisons cab also be done of things like sum(min_l,max_l) asc vs sum(def(field(multi_l,min),0),def(field(multi_l,max),0)) asc (where the def() function is needed to ensure a comparable results due to the unresolved issue in SOLR-8005 since the random data includes roughly 10% of docs having no values in the specified fields.)
notes.txt shows the steps taken in creation of the data and running the various tests. It should include enough information to reproduce.