Am Donnerstag, den 16.10.2008, 09:21 +1100 schrieb Brett Henderson: > Do you have any numbers to show what sort of performance increase can > be expected.
I can load europe.osm into the current_* tables in less than 12 hours (on my laptop - overpowered CPU, 5400 disk). > If it's significant I should add similar functionality into osmosis. I did hope you would say that. > The biggest problem I found wasn't the actual processing of INSERT > statements, it was MySQL scaling non-linearly with the number of > rows. I missed that one. I loaded europe osm with osmosis and found it too slow. I then did all the speed tests with europe.osm. Do you have any numbers concerning the scalability issue? > MyISAM tables are very fast to import regardless of number of rows, > but InnoDB seems to slow down as the number of rows increase. I'm > surprised loading with LOAD DATA INFILE fixes that. LDI is probably the fastes way to get data into mysql. Sincerely, Joachim _______________________________________________ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
