High CPU Usage

[baptiste.millemathias@…]

What steps will reproduce the problem?

What is the expected result?

What happens instead?

Please provide any additional information below. Attach a screenshot if possible.

Relative:URL: ^/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2019-09-29 23:59:43 +0200 (Sun, 29 Sep 2019)
Revision:15390
Build-Date:2019-09-29 22:01:37
URL:https://josm.openstreetmap.de/svn/trunk

Identification: JOSM/1.5 (15390 fr) Linux Freedesktop.org 19.08.3 (Flatpak runtime)
Memory Usage: 501 MB / 1980 MB (179 MB allocated, but free)
Java version: 11.0.5+9, Oracle Corporation, OpenJDK 64-Bit Server VM
Screen: :0.0 1920x1080
Maximum Screen Size: 1920x1080
Dataset consistency test: No problems found

Plugins:
+ Mapillary (1.5.20)
+ OpeningHoursEditor (34977)
+ apache-commons (35092)
+ apache-http (34908)
+ buildings_tools (35171)
+ conflation (0.6.4)
+ continuosDownload (82)
+ geojson (129)
+ http2 (35062)
+ jna (34908)
+ jts (35122)
+ livegps (34977)
+ merge-overlap (35072)
+ openqa (1557250801)
+ reverter (35084)
+ terracer (34977)
+ tofix
+ undelete (34977)
+ utilsplugin2 (35177)

Tagging presets:
+ https://raw.githubusercontent.com/osmlab/name-suggestion-index/master/dist/name-suggestions.presets.xml

Map paint styles:
- https://github.com/bastik/mapcss-tools/raw/osm/mapnik2mapcss/osm-results/mapnik.zip

Last errors/warnings:
- W: Region [userProfile_BLOCK_v2] Resetting cache
- W: restricted header name: "Connection"
- W: restricted header name: "Connection"
- W: restricted header name: "Connection"
- W: restricted header name: "Connection"
- W: restricted header name: "Connection"
- W: restricted header name: "Connection"
- W: restricted header name: "Connection"
- W: restricted header name: "Connection"
- W: restricted header name: "Connection"

[baptiste.millemathias@…]

output of strace command

[anonymous]

I cannot find a reproductible way to trigger this behavior.
Sometimes I detect the CPU is high because JOSM window start to lag for some action, and the fan of my computer becomes noisy.

[Don-vip]

Ticket #18241 has been marked as a duplicate of this ticket.

[Don-vip]

Please try to uninstall all plugins first, and tell me if you still have the problem.

[baptiste.millemathias@…]

I really suspect this is caused by mapillary plugin, but need to test a bit longer.

[Don-vip]

Sounds plausible

[farin2]

Same issue for me: JOSM suddenly becomes extremely slow, only a restart saves me.

I'm also suspecting that this was caused by a plugin, but not by Mapillary.

Revision:15569
Is-Local-Build:true
Build-Date:2019-12-08 17:35:18

Identification: JOSM/1.5 (15569 SVN en) Linux Arch Linux
Memory Usage: 2168 MB / 16088 MB (874 MB allocated, but free)
Java version: 11.0.5+10, Oracle Corporation, OpenJDK 64-Bit Server VM
Screen: :0.0 3840x2160
Maximum Screen Size: 3840x2160
VM arguments: [-Djosm.restart=true, -Djava.net.useSystemProxies=true]
Dataset consistency test: No problems found

Plugins:
+ FastDraw (34977)
+ PolygonCutOut (v0.7)
+ SimplifyArea (34977)
+ apache-commons (35092)
+ apache-http (34908)
+ austriaaddresshelper (57)
+ buildings_tools (35171)
+ ejml (35122)
+ ext_tools (34988)
+ geotools (35169)
+ http2 (35062)
+ jaxb (35014)
+ jna (34908)
+ jts (35122)
+ log4j (34908)
+ measurement (35221)
+ opendata (35179)
+ reltoolbox (35196)
+ reverter (35226)
+ scripting (30796)
+ terracer (34977)
+ undelete (34977)
+ utilsplugin2 (35238)

[..]

[Hb---]

Even after deleting all of its layers and panels Mapillary plugin tries to download pictures and icons.

After one successful (HTTP=200) picture download six times an icon is requested. The icon is 404: ​https://www.mapillary.com/developer/api-documentation/images/traffic_sign/information--general-directions--g1.png

2020-03-15 17:45:29.042 WARNING: Failed to download icon. ID unknown to the icon list: informat
ion--general-directions--g1: javax.imageio.IIOException: Can't get input stream from URL!. Caus
e: java.io.FileNotFoundException: https://www.mapillary.com/developer/api-documentation/images/
traffic_sign/information--general-directions--g1.png

[anonymous]

I have similar behaviour when drawing highways. No imagery. Laptop fan spinning at max with only slow drawing.

[anonymous]

Drawing a highway one node per second on large screen makes java process use between 50% and 100% cpu. This is MacOs Mojave on 20-19 macbook pro.

[taylor.smock]

If you are still having this problem (@Hb---, farin2, baptiste.millemathias), can you please update this ticket after using the Mapillary v2.0 alpha (available in josm-latest as the default Mapillary plugin).

I've made some changes to the Mapillary plugin since this ticket was opened to improve performance.

Specifically, after this ticket was opened:

• Stop drawing icons at lower zoom levels (this helped when in an area with a lot of images -- in the current v2.0 alpha, I've changed this to a (configurable, use mapillary.images.max_draw) number of images on screen).
• Stop downloading detections for all images (v2.0 alpha, may change when the Mapillary v4 API is actually released)