Op 12-Jan-12 01:36, Yang schreef:
> my code looks up features from a IndexedShapeFileDataStore
>
> basically:
>
> for(Point p : given points ) {
> dataStore.getFeature(query(p));
> }
>
>
> I can see from "top" command that the RES memory consumption is only 40MB,
> I have about 8GB on the box, and have allocated -Xmx4000M to jvm.
> is there any way I could let geotools load more content into memory,
> so hopefully it would query faster?
you could try to copy all of the shapefile into a DataStore or feature
store that uses a memory stucture such as eg. a hashtable to create an
in memory cache of the data, of course this will only work reliably in a
read-only scenario. it depends on you data if it's worth the tradeoff
with longer startup time.
btw. don't the "cacheMemoryMaps" and "useMemoryMappedBuffer" options on
IndexedShapeFileDataStore() do anything?
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