[mkgmap-dev] [Patch v8] splitter optimization

Thu Dec 22 17:25:23 GMT 2011

In order to not get the merge lost ... I've been using the patched 
splitter all along. Would be nice to see the trunk merged with the 
memory optimization branch...

On 30.11.2011 20:46, WanMil wrote:
> Hi,
>
> I've committed it. Do you think it's ready to merge back to trunk if
> noone complains within the next week?
>
> WanMil
>
>
>> Hello WanMil,
>>
>> during the last days I tried a lot of different techniques to further
>> improve memory usage, but nothing really improved the throughput
>> of splitter. The default settings are now so well tuned that the only
>> situation where --optimize-mem=true really helped was when spttiting rather
>> small files (pbf with 100MB or less). But these small files are never a
>> problem regarding memory, and I guess that most users that want to split
>> large files (europe or so) have machines with 8GB or more.
>>
>> So, the attached patch removes all code handling the --optimize-mem
>> parameter to remove useless complex code, keeping only those changes
>> that really improve something.
>> I've also added code to the unit tests and small correction to the now
>> unused SparseInt2ShortMap implementations.
>>
>> Ciao,
>> Gerd
>>
>>
>>
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