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@na1400.info To: mkgmap-dev@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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