I've seen something similar but don't have so much media files on my card. Hard to say why exactly but the simple answer is that metalayer crawler is badly written or not optimized/tested for running from ext2 filesystem. I guess the problem is that /home/user containing metalayer crawler database is now on MMC and scanned media too so metalayer-crawler both reads and writes (different or even same) mmc card at the same time and the performance is poor because of this concurrent access. 7 hours vs 10 minutes is really pathological and needs fixing. Either it is some real bug or simply bad programming style that does not hurt with internal flash. I guess better write caching when updating the database should help a lot.


I guess ext3 could be much slower in this case than ext2 so I hoped you're using ext3 and got those 7 hours.