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<DIV>Your question probably covers too many topics to be adequately addressed. Performance issues with large raster datasets are related to hardware, image format, as well as all of the intricacies of how you set up your tileindex. </DIV>
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<DIV>This issue comes up VERY frequently on the list. Ed McNierney has a lot of experience serving HUGE raster data sets through MapServer... his responses to raster performance questions are generally very detailed and offer good information, insight, and options for improving performance. The following query of the archives returned a bunch of great hits:</DIV>
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<DIV>Raster AND Performance AND Ed</DIV>
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<DIV>HTH!</DIV>
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<DIV>Chip</DIV>
<DIV><BR>>>> antti siukola <siukola.antti@GMAIL.COM> 7/5/2006 2:27:07 AM >>><BR></DIV>
<DIV style="COLOR: #000000">Hi!<BR><BR>What is the best way to improve performance when using large tif tiles<BR>assembled with shape files. Now my response time is about 20 sec. per<BR>page load when viewing the whole map since the whole size of the map<BR>is about 3.3GB. Is pre-built overviews the solution (gdaladdo)?<BR><BR>AnttiS<BR></DIV>
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