[OSM-talk] Serious JOSM performance degradation

[Safwat Halaby]

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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> > 
> >