[OSM-talk] Serious JOSM performance degradation

john whelan jwhelan0112 at gmail.com
Sat Nov 11 20:52:34 UTC 2017


java -Xmx8210000000 -jar G:\josm\josm-tested.jar

in a .bat file seems to be happy with 2Mb files.  It can be sluggish though
so I try to keep it below 250kb for best performance.

Cheerio John

On 11 November 2017 at 15:43, Safwat Halaby <swiftfast at gmx.com> wrote:

> I deal with a huge dataset (about 30k bus stops nodes) almost daily.
> This was never a problem before, but since recently (I cannot pinpoint
> the exact version), JOSM often hangs when I edit the bus stop tags.
> Waiting for a few seconds (can be up to ~30) always resolves this.
>
> I suspect it has to do with JOSM's autocomplete, because it seems to
> happen when editing massively used keys. For instance, all stops have a
> "ref" key, and when I click "edit" on a single stop's "ref", JOSM
> stalls. A similar issue occurs when adding "description" to changeset
> uploads. Description is also used by all stops.
>
> Any tips or pointers?
>
> _______________________________________________
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>
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