On Thu, Feb 3, 2011 at 2:08 PM, Roger Bedell <[email protected]> wrote: > Hi Andrea, > > So, it kind of looks like there never be a 64 bit JAI (native) for Windows. > > As to a slowdown, it perhaps isn't as much as you say, I did some > comparisons with JAI(Native) on and off with Jpeg CMYK encoded Geotiffs, and > saw about a 20% performance penalty for serving WMS. With 64 bit Java, we > can use a whole lot more RAM, which might more than make up the difference.
That's less than I measured in the past in fact, I had a slowdown of a factor 2 by not having both JAI native versions around. (see this presentation for details: http://download.osgeo.org/osgeo/foss4g/2009/SPREP/3Fri/Parkside%20Auditorium/1300/fri%20paud%201400%20aime.odp) > So, just to get things straight, do imageio and imageio-ext depend on JAI > Native, and JAI Native is only 64 bit on Linux/Solaris? > > Or, does JAI and ImageIO-Ext exist in the Java version (non-native > libraries)? From the JAI docs: > > "JAI can be run without its native acceleration layer without loss of > functionality". > > Doesn't say anything about ImageIO, or ImageIO-ext. Can these be run without > native acceleration as well? I know GDAL itself is easy to make 64 bit, and > wouldn't it do a lot of the work? In both cases as far as I know you only pay a performance penalty, but functionality is preserved. As I said before, you don't loose functionality by not having JAI and JAI ImageIO native extensions. You do lose functionality if you don't have imageio-ext though, by not having support for a number of raster formats, because unlike JAI and JAI ImageIO, imageio-ext simply does not work without its native counterpart Cheers Andrea -- Ing. Andrea Aime Technical Lead GeoSolutions S.A.S. Via Poggio alle Viti 1187 55054 Massarosa (LU) Italy phone: +39 0584962313 fax: +39 0584962313 http://www.geo-solutions.it http://geo-solutions.blogspot.com/ http://www.linkedin.com/in/andreaaime http://twitter.com/geowolf ----------------------------------------------------- ------------------------------------------------------------------------------ Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! Finally, a world-class log management solution at an even better price-free! Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsight-sfd2d _______________________________________________ Geoserver-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geoserver-users
