<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><font class="Apple-style-span" size="3"><span class="Apple-style-span" style="font-size: 13px;">In a well documented test, I found that gdal_translate processing of a 675 MB image with --config GDAL_CACHEMAX 40 took 10,473 seconds, while processing with --config GDAL_CACHEMAX 45 was 63 times faster!, taking only 166 seconds. However, further increases in the GDAL_CACHEMAX did not effect processing times. A table and a graph of the results of my test are available at <a href="http://homepage.mac.com/gregcoats/jp2.html#GDAL_CACHEMAX">http://homepage.mac.com/gregcoats/jp2.html#GDAL_CACHEMAX</a></span></font></div><div><font class="Apple-style-span" size="3"><span class="Apple-style-span" style="font-size: 13px;">Greg</span></font></div><font class="Apple-style-span" size="3"><span class="Apple-style-span" style="font-size: 13px;"><br></span></font><div><div><font class="Apple-style-span" size="3"><span class="Apple-style-span" style="font-size: 13px;">On Aug 25, 2010, at 10:24 AM, turtlewax wrote:</span></font></div><font class="Apple-style-span" size="3"><span class="Apple-style-span" style="font-size: 13px;"><br class="Apple-interchange-newline"></span></font><blockquote type="cite"><font class="Apple-style-span" size="3"><span class="Apple-style-span" style="font-size: 13px;">2. Would setting environment variables such as GDAL_CACHEMAX help?</span></font></blockquote></div><br></body></html>