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[mkgmap-dev] Performance with --bounds option

From Ticker Berkin rwb-mkgmap at jagit.co.uk on Thu Mar 19 10:04:47 GMT 2020

Hi Gerd

With the reversion of the code in r4469, the performance is acceptable
again. It is only a few tiles that have this problem and, for GB, they
don't add significantly to the overall map generation time

Ticker


On Thu, 2020-03-19 at 06:52 +0000, Gerd Petermann wrote:
> Hi Ticker,
> 
> some more details:
> I didn't think of boundary relations like r1959008 which contains >
> 700 outer rings. For each node close to that boundary mkgmap called
> Java2DConverter.areaToSingularAreas() which calculated all the areas
> again and again.
> In Germany, boundary relations typically have only one ring ;)
> I think I should look into the code which compiles bounds.zip,
> somehow I expected that those complex areas are split to singular
> areas, might improve performance.
> 
> Gerd
> 
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag
> von Gerd Petermann <gpetermann_muenchen at hotmail.com>
> Gesendet: Mittwoch, 18. März 2020 19:46
> An: Development list for mkgmap
> Betreff: Re: [mkgmap-dev] Performance with --bounds option
> 
> Hi Ticker,
> 
> I forgot to remove some experimental code for is-in branch in
> BoundaryQuadTree.
> Fixed with r4469.
> I'll probably also remove the methods pointInsideArea() and
> pointInsideSingularArea() in BoundaryUtil.
> 
> Gerd
> 
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag
> von Ticker Berkin <rwb-mkgmap at jagit.co.uk>
> Gesendet: Mittwoch, 18. März 2020 18:16
> An: Development list for mkgmap
> Betreff: Re: [mkgmap-dev] Performance with --bounds option
> 
> Have done:
> 
> http://files.mkgmap.org.uk/download/462/74220001.osm.pbf
> 
> Ticker
> 
> On Wed, 2020-03-18 at 16:26 +0000, Gerd Petermann wrote:
> > Hi Ticker,
> > 
> > will look at it tomorrow. Maybe you can upload the file to
> > http://files.mkgmap.org.uk/
> > 
> > Gerd
> > 
> > ________________________________________
> > Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag
> > von Ticker Berkin <rwb-mkgmap at jagit.co.uk>
> > Gesendet: Mittwoch, 18. März 2020 11:56
> > An: Development list for mkgmap
> > Betreff: Re: [mkgmap-dev] Performance with --bounds option
> > 
> > Hi Gerd
> > 
> > It's
> > 
> > 74220001: 2674688,-700416 to 2811904,-233472
> > #       : 57.392578,-15.029297 to 60.336914,-5.009766
> > 
> > Ticker
> > 
> > On Wed, 2020-03-18 at 10:46 +0000, Gerd Petermann wrote:
> > > Hi Ticker,
> > > 
> > > please tell me the tile boundaries
> > > 
> > > Gerd
> > > 
> > > 
> > > ________________________________________
> > > Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im
> > > Auftrag
> > > von Ticker Berkin <rwb-mkgmap at jagit.co.uk>
> > > Gesendet: Mittwoch, 18. März 2020 11:43
> > > An: mkgmap development
> > > Betreff: [mkgmap-dev] Performance with --bounds option
> > > 
> > > Hi Gerd
> > > 
> > > With the current version I have a tile that takes 3.5 hours to
> > > build.
> > > With an old version (r4295) it took about 3 minutes. Without -
> > > -bounds
> > > it takes 1 minute 15 secs.
> > > 
> > > Relevant options are:
> > >  --bounds=bounds.zip --location-autofill=is_in,nearest
> > > 
> > > 
> > > From the mkgmap.log files:
> > > INFO: uk.me.parabola.mkgmap.reader.osm.LocationHook
> > >  ../mapGB/74220001.osm.pbf: Checking bounds dir took 66 ms
> > > ...
> > > INFO: uk.me.parabola.mkgmap.reader.osm.LocationHook
> > >  ../mapGB/74220001.osm.pbf: Starting with location hook
> > > INFO: uk.me.parabola.mkgmap.reader.osm.boundary.BoundaryUtil
> > >  ../mapGB/74220001.osm.pbf: loading boundary file:
> > > bounds_2650000_
> > > -750000.bnd
> > > ... about 40 similar messages ...
> > > INFO: uk.me.parabola.mkgmap.reader.osm.boundary.BoundaryUtil
> > >  ../mapGB/74220001.osm.pbf: loading boundary file:
> > > bounds_2800000_
> > > -250000.bnd
> > > WARN: uk.me.parabola.mkgmap.reader.osm.boundary.BoundaryGrid
> > >  ../mapGB/74220001.osm.pbf: no precompiled boundary information
> > > available for raster tile 2750000_-400000
> > > ... 16 similar messages ...
> > > WARN: uk.me.parabola.mkgmap.reader.osm.boundary.BoundaryGrid
> > >  ../mapGB/74220001.osm.pbf: no precompiled boundary information
> > > available for raster tile 2800000_-250000
> > > INFO: uk.me.parabola.mkgmap.reader.osm.LocationHook
> > >  ../mapGB/74220001.osm.pbf: ======= LocationHook Stats =====
> > > INFO: uk.me.parabola.mkgmap.reader.osm.LocationHook
> > >  ../mapGB/74220001.osm.pbf: QuadTree searches    : 97834
> > > INFO: uk.me.parabola.mkgmap.reader.osm.LocationHook
> > >  ../mapGB/74220001.osm.pbf: unsuccesfull         : 20
> > > INFO: uk.me.parabola.mkgmap.reader.osm.LocationHook
> > >  ../mapGB/74220001.osm.pbf: unsuccesfull for ways: 9
> > > INFO: uk.me.parabola.mkgmap.reader.osm.LocationHook
> > >  ../mapGB/74220001.osm.pbf: Location hook finished in 12747318 ms
> > > 
> > > The old version had similar lines, but the stats at the end are:
> > > 
> > > INFO: uk.me.parabola.mkgmap.reader.osm.LocationHook
> > >  ../mapGB/74220001.osm.pbf: ======= LocationHook Stats =====
> > > INFO: uk.me.parabola.mkgmap.reader.osm.LocationHook
> > >  ../mapGB/74220001.osm.pbf: QuadTree searches    : 95639
> > > INFO: uk.me.parabola.mkgmap.reader.osm.LocationHook
> > >  ../mapGB/74220001.osm.pbf: unsuccesfull         : 20
> > > INFO: uk.me.parabola.mkgmap.reader.osm.LocationHook
> > >  ../mapGB/74220001.osm.pbf: unsuccesfull for ways: 9
> > > INFO: uk.me.parabola.mkgmap.reader.osm.LocationHook
> > >  ../mapGB/74220001.osm.pbf: Location hook finished in 113704 ms
> > > 
> > > Ticker
> > > 
> > > _______________________________________________
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> > > mkgmap-dev at lists.mkgmap.org.uk
> > > http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
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