Ian Schneider created GEOS-4903:
-----------------------------------
Summary: superfluous sorted collection used in
WMS.getDimensionCollection
Key: GEOS-4903
URL: https://jira.codehaus.org/browse/GEOS-4903
Project: GeoServer
Issue Type: Improvement
Components: WMS
Affects Versions: 2.2.x
Reporter: Ian Schneider
Assignee: Andrea Aime
I noticed this on a VM where performance on a getcaps request degraded from ~3
seconds to ~100 seconds. After timing on a local machine, the specific trouble
maker shapefile took 3.5 seconds (this was reduced to 1.7 seconds using the
normal, unsorted feature collection). The particular shapefile does not have
many attributes, but relatively large geometries.
At issue is the recent native sorting capability introduced by GEOT-3977
Because the consumers of the returned feature collection either a) sort the
results themselves (UniqueVisitor) or b) scan the entire collection
{Min,Max}Visitor, it appears that significant extra work is being done.
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