I think it is the underlying ImageIO "FactorFinder" mechanism that, while asksing every ImageReaderSPI it finds in the classpth if it is able to read a certain image, it runs into the TextImageReader and asks it the same question. I think that what yu are seeing is the consequence of some non-optimized code in the canDecode method ImageReaderSPI.
Note that here we are running into the issue I raised here http://jira.codehaus.org/browse/GEOT-1042?page=all. Basically, IMHO, this class, along with the other needed classes, shoul d be moved to its own plugin in order to not interfere with other plugins'code. Since this classes mostly declares ImageIO plugin they should become a fully-fledged coverage plugin. Simone. On 1/16/07, Andrea Aime <[EMAIL PROTECTED]> wrote: > Hi, > profiling the pyramid/mosaic plugins in geoserver > I noticed a significant slowdown caused by TextImageReader > trying to, well, do something I don't understand, > due to the plugin system (I guess the plugin system is > trying to locate the format that can handle an image and > TextImageReader is answering). > > I've attached the profile here: > http://jira.codehaus.org/secure/attachment/25243/profileLineFormat.html > > I think there are two ways to handle this: > 1) optimize a lot that format reader > 2) put it into its own plugin, since in Geoserver and uDig we don't > need it anymore > > What do you think? > Cheers > Andrea > > > ------------------------------------------------------------------------- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to share your > opinions on IT & business topics through brief surveys - and earn cash > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > _______________________________________________ > Geotools-devel mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/geotools-devel > -- ------------------------------------------------------- Eng. Simone Giannecchini President /CEO GeoSolutions http://www.geo-solutions.it ------------------------------------------------------- ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Geotools-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geotools-devel
