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Till Kinstler schrieb:

Hi,

> I just did a quick test using Solr nightly 2008-11-30. I have an index
> of about 2.9 mil bibliographic records, size: 16G. I tested facetting
> author names, each index document may contain multiple author names, so
> author names go into a multivalued field (not analyzed). Queries used
> for testing were extracted from log files of a prototype application.
> With facet.method=enum, 50 request threads, I get an average response
> time of about 190000(!) ms, no cache evictions. With 1 request thread:
> about 1800 ms.
> With facet.method=fc, 50 threads I get an average response time of
> around 300 ms. 1 thread: 16 ms.
> Seems to be a major improvement at first sight :-)

same here: multi valued author fields were the bottleneck with 1.3 for
us, too. I'm currently testing with 1.5 million records, ~1.2 million of
which have values for the author field, but with ~2 million distinct
values. With Solr 1.3 we had average response times of 15000-25000 ms
for 10 parallel requests (depending on cache settings), with 1.4 they
are now down to 230 ms...

Regards,

Andre
- --
Andre Hagenbruch
Projekt "Integriertes Bibliotheksportal"
Universitaetsbibliothek Bochum, Etage 4/Raum 6
Fon: +49 234 3229346, Fax: +49 234 3214736
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