[OSM-talk] Serious JOSM performance degradation

[Jo]

When working with public transport, the PT_Assistant plugin might be
interesting for you. On the other hand, it might cause additional overhead.

Jo

2017-11-11 22:23 GMT+01:00 Safwat Halaby <swiftfast at gmx.com>:

> I don't know what these are.
>
> The test described below was done without plugins, by the way.
>
> On Sat, 2017-11-11 at 22:14 +0100, Jo wrote:
> > Did you start using PT_Assistant? Or a MapCSS style dedicated to PT?
> >
> > Polyglot
> >
> > 2017-11-11 22:10 GMT+01:00 john whelan <jwhelan0112 at gmail.com>:
> >
> > > If you give it more memory sometimes that compensates on the CPU
> > > side by
> > > not requiring so much disk reading and writing.  Also there are
> > > almost
> > > certainly internal tables which work better in memory.  JAVA is a
> > > strange
> > > world of its own and with so many contributors and plugins I'm not
> > > sure
> > > anyone has a clear idea of exactly how JOSM works with in it.
> > >
> > > Not guaranteed but worth a try.
> > >
> > > Cheerio John
> > >
> > > On 11 November 2017 at 16:03, Safwat Halaby <swiftfast at gmx.com>
> > > wrote:
> > >
> > > > More details:
> > > >
> > > > JOSM 12712 has no issues.
> > > > Latest JOSM 13053 has issues.
> > > > Not sure how to download the intermediate version (12921).
> > > > It's a CPU starvation issue and not a memory overuse issue. (Core
> > > > at
> > > > 100% for 10-30 seconds).
> > > >
> > > > Test case:
> > > >
> > > > Open up the attached file, try editing the ref or name of a stop.
> > > >
> > > > 12712 works flawlessly.
> > > > 13053 hangs for 10-30 seconds.
> > >
> > >
> > >
> > > _______________________________________________
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> > > talk at openstreetmap.org
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> > >
> > >
>
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