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<div>hello, i want to unsubscribe the email, and i cannot unsubscribe by website,thanj you.</div><div><br></div><div><br></div><div><br></div><div id="composer_signature"><div style="font-size:85%;color:#575757">发送自我的三星设备</div></div><br><br>-------- 原始邮件 --------<br>发件人： gdal-dev-request@lists.osgeo.org <br>日期: 2015-11-29 04:00 (GMT+08:00) <br>收件人： gdal-dev@lists.osgeo.org <br>主题： gdal-dev Digest, Vol 138, Issue 50 <br><br>Send gdal-dev mailing list submissions to<br> gdal-dev@lists.osgeo.org<br><br>To subscribe or unsubscribe via the World Wide Web, visit<br> http://lists.osgeo.org/mailman/listinfo/gdal-dev<br>or, via email, send a message with subject or body 'help' to<br> gdal-dev-request@lists.osgeo.org<br><br>You can reach the person managing the list at<br> gdal-dev-owner@lists.osgeo.org<br><br>When replying, please edit your Subject line so it is more specific<br>than "Re: Contents of gdal-dev digest..."<br><br><br>Today's Topics:<br><br> 1. Changing default value for GDAL_CACHEMAX ? (was Re: Slow<br> warping) (Even Rouault)<br><br><br>----------------------------------------------------------------------<br><br>Message: 1<br>Date: Sat, 28 Nov 2015 16:13:55 +0100<br>From: Even Rouault <even.rouault@spatialys.com><br>To: Ari Jolma <ari.jolma@gmail.com><br>Cc: gdal-dev@lists.osgeo.org<br>Subject: [gdal-dev] Changing default value for GDAL_CACHEMAX ? (was<br> Re: Slow warping)<br>Message-ID: <201511281613.55336.even.rouault@spatialys.com><br>Content-Type: Text/Plain; charset="utf-8"<br><br>Le vendredi 27 novembre 2015 13:43:34, Ari Jolma a écrit :<br>> 27.11.2015, 14:10, Even Rouault kirjoitti:<br>> > Try setting GDAL_CACHEMAX to 150 (6048 * 4032 * 3 = 73 MB. and a x 2<br>> > security margin)<br>> <br>> This reduces the time into 4 s.<br>> <br>> Quite a bit reduction from several hours.<br>> <br>> Maybe the default is too low? 150 MB does not seem much.<br><br>Setting the default is not obvious because it depends on use cases and <br>hardware configurations. What if people run 100 gdal_translate in parallel ? <br>(not very common use cases admidetely, and people can still override the <br>default)<br><br>Perhaps rather than a fixed value, a percentage of the total RAM would be more <br>appropriate (*). Let's say 5% ? <br>2 GB (which is the max for a 32 bit process) -> 100 MB<br>4 GB -> 200 MB<br>16 GB -> 800 MB.<br><br>We could also accept a GDAL_CACHEMAX=X% syntax<br><br>Even<br><br>(*) the ECW SDK does that for its own purposes, with a 25% default AFAIR<br><br>-- <br>Spatialys - Geospatial professional services<br>http://www.spatialys.com<br><br><br>------------------------------<br><br>Subject: Digest Footer<br><br>_______________________________________________<br>gdal-dev mailing list<br>gdal-dev@lists.osgeo.org<br>http://lists.osgeo.org/mailman/listinfo/gdal-dev<br><br>------------------------------<br><br>End of gdal-dev Digest, Vol 138, Issue 50<br>*****************************************<br></body></html>