Best way to load data into memory

[Thijs@MoteOfLife]

Hi All,

I was wondering. What is the best way to load static data into memory? We're developing a star viewer for the iPhone. We currently load all star data into memory via XML parsing. And with approximately 10000 stars our application, launch time is well over 30 seconds. We would like to bring down the launch time significantly.

I already tried parsing the data with the XMLParser class from Alan Quatermain. ( StreamingXMLParser at master from AlanQuatermain's aqtoolkit - GitHub ). But unfortunately this only slowed things down.

If you know a way to load the data much faster I would love to hear it. Thanks in advance.

[the_aof]

I suggest XMLPerformance example of Apple in part of C library.

Best regards.

Parada

[smasher]

NSArray's initWithContentsOfFile might be faster, if you can reformat your data into an array of dictionaries and save it as a plist.

Otherwise, if you don't use all of data at once then a SQLite database is probably a better bet. There's no reason to load the whole set into memory if you don't need the whole set at once.

[Thijs@MoteOfLife]

Originally Posted by smasher

NSArray's initWithContentsOfFile might be faster, if you can reformat your data into an array of dictionaries and save it as a plist.

Otherwise, if you don't use all of data at once then a SQLite database is probably a better bet. There's no reason to load the whole set into memory if you don't need the whole set at once.

Thanks for the suggestions. But I do need the whole data set at once.

I read somewhere that SQLite would be faster anyway, but it was explained a bit vague.