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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Often, we need to open many raster files over a network connection with thousands of other files residing in the same directory.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='text-autospace:none'>Previously, we were using version 1.7.0 of GDAL (from FW Tools), and we used <span style='font-size:9.5pt;font-family:Consolas;color:green'>SetConfigOption("GDAL_DISABLE_READDIR_ON_OPEN", "TRUE")<o:p></o:p></span></p><p class=MsoNormal>to suppress the automatic search for sibling files. This approach served us well.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>We upgraded to 1.8.0. It was quite a bit slower opening the raster files. I was able to get GDAL built in debug and stepped through the code and discovered the following:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='mso-list:Ignore'>1.<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>It searches for several files containing RPC metadata.<o:p></o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='mso-list:Ignore'>2.<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>It searches for files for PAM as well.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='text-autospace:none'>I was able to use <span style='font-size:9.5pt;font-family:Consolas'>SetConfigOption(<span style='color:#A31515'>"GDAL_PAM_ENABLED"</span>, <span style='color:#A31515'>"NO"</span>) to suppress searching for PAM files.<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas'>However, I do not see a way to suppress searching for RPC metadata. Does anyone know of a way to do this or other workarounds? If there is no way to currently do this, is the community open to adding this option?<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas'>I apologize if this question has been posted previously, but I haven’t yet found a convenient way to search the archives.<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas'>Thanks,<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas'>Kyle<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>