Same problem here.
After importing the media library it's ok. But after the first restart it's very, very slow.
I've identified two queries against the database which took a long time:
sqlite> SELECT COUNT(*), SUM(CoreTracks.FileSize) FROM CoreTracks,CoreArtists,CoreAlbums, CoreSmartPlaylistEntries WHERE CoreArtists.ArtistID = CoreTracks.ArtistID AND CoreAlbums.AlbumID = CoreTracks.AlbumID AND CoreSmartPlaylistEntries.TrackID = CoreTracks.TrackID AND CoreSmartPlaylistEntries.SmartPlaylistID = 7 ;
14508|86984790003
CPU Time: user 28.910000 sys 8.170000
sqlite> SELECT COUNT(*), SUM(CoreTracks.FileSize) FROM CoreTracks,CoreArtists,CoreAlbums, CoreSmartPlaylistEntries WHERE CoreArtists.ArtistID = CoreTracks.ArtistID AND CoreAlbums.AlbumID = CoreTracks.AlbumID AND CoreSmartPlaylistEntries.TrackID = CoreTracks.TrackID AND CoreSmartPlaylistEntries.SmartPlaylistID = 8 AND MetadataHash NOT IN (SELECT MetadataHash FROM CoreTracks WHERE PrimarySourceId = 9);
14437|86520727025
CPU Time: user 30.410000 sys 8.380000
Same problem here.
After importing the media library it's ok. But after the first restart it's very, very slow.
I've identified two queries against the database which took a long time:
sqlite> SELECT COUNT(*), SUM(CoreTracks. FileSize) FROM CoreTracks, CoreArtists, CoreAlbums, CoreSmartPlayli stEntries WHERE CoreArtists. ArtistID = CoreTracks.ArtistID AND CoreAlbums.AlbumID = CoreTracks.AlbumID AND CoreSmartPlayli stEntries. TrackID = CoreTracks.TrackID AND CoreSmartPlayli stEntries. SmartPlaylistID = 7 ;
14508|86984790003
CPU Time: user 28.910000 sys 8.170000
sqlite> SELECT COUNT(*), SUM(CoreTracks. FileSize) FROM CoreTracks, CoreArtists, CoreAlbums, CoreSmartPlayli stEntries WHERE CoreArtists. ArtistID = CoreTracks.ArtistID AND CoreAlbums.AlbumID = CoreTracks.AlbumID AND CoreSmartPlayli stEntries. TrackID = CoreTracks.TrackID AND CoreSmartPlayli stEntries. SmartPlaylistID = 8 AND MetadataHash NOT IN (SELECT MetadataHash FROM CoreTracks WHERE PrimarySourceId = 9);
14437|86520727025
CPU Time: user 30.410000 sys 8.380000