<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">Hi,<div><br><div>What is your cpu, gpu, memory amount. Do you have a hard drive spinning on another task like antivirus, Windows indexing... update windows and drivers. If you look at the task manager, try to see if one core in 100% busy. You may have a rogue task is overtaking the computer even if total cpu is low.</div><div><br></div><div>Could this be the geopackage fault? Somebody had a problem this week with increasingly slow geopackage performance...<br><br><div dir="ltr">Nicolas Cadieux<div><a href="https://gitlab.com/njacadieux">https://gitlab.com/njacadieux</a></div></div><div dir="ltr"><br><blockquote type="cite">Le 16 déc. 2020 à 07:49, Martin Pergler <pergler@gmail.com> a écrit :<br><br></blockquote></div><blockquote type="cite"><div dir="ltr"><span>Happy user of QGIS since about 3.2. Currently using 3.16.1 (OSGeo4W install)</span><br><span>and experiencing pretty severe performance degradation. I know these things</span><br><span>are a bear to hunt down; would appreciate any suggestions how to go about</span><br><span>finding the cause of the problem.</span><br><span></span><br><span>Symptoms:</span><br><span>- Mild sluggishness rendering canvas with editing turned off, as well as</span><br><span>general UI operations (e.g. tooltips on layers in layer list sometimes first</span><br><span>appear as a black box, and only 1/2s later fill with the actual tooltip)</span><br><span>- Mild sluggishness digitizing new lines or vertex-editing new ones</span><br><span>- Significant slowdown in attribute form for new features digitized (2-3s</span><br><span>response time to type in a text field, for instance)</span><br><span>- When attribute form closed, prior features in layer being edited sometimes</span><br><span>fail to be rendered on canvas (the new one just added is)</span><br><span>- 10-15s freeze (blue circle mouse icon) after exiting edit mode. Edits are</span><br><span>saved properly.</span><br><span></span><br><span>Things worked just fine on the same project until last month, when I took a</span><br><span>break from GIS tasks. In between, I both upgraded 3.16.0 -> .1, as well as a</span><br><span>new Windows OS update installed itself, and some new device drivers. So</span><br><span>plenty of things to blame.</span><br><span></span><br><span>I have already:</span><br><span></span><br><span>1. Uninstalled and reinstalled OSGeo4W completely</span><br><span></span><br><span>2. Tried with a new, no-plugin user profile (sluggishness persists, though a</span><br><span>bit better - so I suspect some low-level slowdown which struggles with</span><br><span>anything additional, but is not directly caused by something in my profile)</span><br><span></span><br><span>3. Checked I have all layers indexed, no crazy validation rules, etc. BTW</span><br><span>all my layers are in a gpkg (or raster TIFFs) on a local drive (and besides</span><br><span>it worked before).</span><br><span></span><br><span>4. Monitored hardware performance. I have adequate hardware for QGIS. CPU</span><br><span>usage stays ~30%, GPU ~20%, temperatures reasonable, RAM usage reasonable.</span><br><span></span><br><span>5. Tried disabling the Browser panel (given some recent bug reports on</span><br><span>Browser and network drives). No effect.</span><br><span></span><br><span>Thanks for any sleuthing suggestions!</span><br><span></span><br><span></span><br><span></span><br><span></span><br><span>--</span><br><span>Sent from: http://osgeo-org.1560.x6.nabble.com/QGIS-User-f4125267.html</span><br><span>_______________________________________________</span><br><span>Qgis-user mailing list</span><br><span>Qgis-user@lists.osgeo.org</span><br><span>List info: https://lists.osgeo.org/mailman/listinfo/qgis-user</span><br><span>Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user</span><br></div></blockquote></div></div></body></html>