[mkgmap-dev] splitter r247

Sun Dec 2 11:26:20 GMT 2012

Please note that the message you replied to is a couple of days old and 
was stuck in the mailinglist server.

On 02-12-12 12:08, Gerd Petermann wrote:
> Hi Lambertus,
>
> okay, regarding performance I think it makes no sense to use a small 
> max-areas value. The rule seems to be simple: The more passes, the 
> longer the run time.
> On the other hand, it would be good to know that the results are 
> exactly the same  (same problem-list, same *.osm.gz, same areas.list). 
> I've never tested that with planet, only
> with small areas.
>
> Gerd
>
> ------------------------------------------------------------------------
> Date: Fri, 30 Nov 2012 19:57:47 +0100
> From: osm at na1400.info
> To: mkgmap-dev at lists.mkgmap.org.uk
> Subject: Re: [mkgmap-dev] splitter r247
>
> Maybe because I forgot to change the -max-areas setting the split took 
> a lot longer then expected. It even did not finish yet. CPU usage is 
> around 1 to 4% now, this doesn't look good. I've attached the log.
>
> The commandline I used was:
>
> java -agentlib:hprof=cpu=samples,depth=20 
> -XX:-HeapDumpOnOutOfMemoryError -XX:+PrintGCTimeStamps 
> -XX:+PrintGCDetails -Xmx6000m -jar splitter.jar  --output=xml 
> --keep-complete --overlap=0 --no-trim --mapid=1 --max-nodes=1500000 
> --max-areas=512 --write-kml=initial.kml 
> --geonames-file=cities15000.zip planet-latest.osm.pbf
>
> I'll start the split again using --max-areas=2048
>
> On 30-11-12 01:53, GerdP wrote:
> >
> > The results were ok, only runtime and memory usage was too high in
> > your case. r250 corrects this.
> >
> > If you want to provide new logs, please run this version with java
> > -agentlib:hprof=cpu=samples,depth=20 -XX:-HeapDumpOnOutOfMemoryError
> > -XX:+PrintGCTimeStamps +PrintGCDetails -Xmx6000m -jar splitter.jar
> > .... --max-areas=2048
> >
> > This should result in max. 2 hours runtime.
> >
> > If you want to compare with the previous results, try also with
> > --max-areas=255
> >
> > Please send me the splitter log and the java.hprof .
> >
> > Gerd
> >
>
>
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