id summary reporter owner description type status priority milestone component version resolution keywords cc 16938 [Patch] Poor GUI performance when data contains ways with many nodes GerdP team "==== What steps will reproduce the problem? 1. Load sample file which is an extract of coastlines 2. execute a search for (type:way ""natural""=""coastline"" -closed) 3. Zoom in/out or pan close to ways with many nodes, e.g. way 409381644 ==== What is the expected result? Quick reaction ==== What happens instead? Sometimes GUI hangs for many seconds before reacting ==== Please provide any additional information below. Attach a screenshot if possible. I noticed that while trying to find errors in the coastline. I used VisualVM to track down where the problem occurs. It always showed NavigatableComponent.getNearestWaySegments(). I think I found one problem addressed by the attached small patch: The searchloop should only search for the 2 nodes in the current way segment, not for all nodes of the way. {{{ Build-Date:2018-11-02 08:35:18 Revision:14401 Is-Local-Build:true Identification: JOSM/1.5 (14401 SVN en) Windows 10 64-Bit OS Build number: Windows 10 Home 1803 (17134) Memory Usage: 2579 MB / 3641 MB (1434 MB allocated, but free) Java version: 1.8.0_191-b12, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM Screen: \Display0 1920x1080 Maximum Screen Size: 1920x1080 VM arguments: [-agentlib:jdwp=transport=dt_socket,suspend=y,address=localhost:55052, -ea, -Dfile.encoding=UTF-8] Program arguments: [--debug] Dataset consistency test: No problems found Plugins: + OpeningHoursEditor (34535) + apache-commons (34506) + buildings_tools (34572) + download_along (34503) + ejml (34389) + geotools (34513) + jaxb (34506) + jts (34524) + measurement (34529) + merge-overlap (34664) + o5m (34405) + opendata (34698) + pbf (34576) + poly (34546) + reverter (34552) + undelete (34568) + utilsplugin2 (34506) Last errors/warnings: - W: java.io.IOException: Attribution is not loaded yet - W: java.io.IOException: Attribution is not loaded yet - W: Unable to delete archived backup file \autosave\deleted_layers\63240038.osm.pbf_20181102_081222383.osm - W: Unsaved changes - The relation has been changed.

Do you want to save your changes? - E: org.openstreetmap.josm.io.OsmApiException: ResponseCode=400, Error Header= - E: Bad Request - org.openstreetmap.josm.gui.widgets.HtmlPanel[,0,0,0x0,invalid,layout=java.awt.BorderLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=9,maximumSize=,minimumSize=,preferredSize=] - E: org.openstreetmap.josm.io.OsmApiException: ResponseCode=400, Error Header= - E: Bad Request - org.openstreetmap.josm.gui.widgets.HtmlPanel[,0,0,0x0,invalid,layout=java.awt.BorderLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=9,maximumSize=,minimumSize=,preferredSize=] - E: org.openstreetmap.josm.io.OsmApiException: ResponseCode=400, Error Header= - E: Bad Request - org.openstreetmap.josm.gui.widgets.HtmlPanel[,0,0,0x0,invalid,layout=java.awt.BorderLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=9,maximumSize=,minimumSize=,preferredSize=] }}} " defect closed normal 18.11 Core fixed template_report performance