JJZolx;640023 Wrote: > Is 8 minutes a normal amount of time to scan 50k tracks on your server? > Just wondering how realistic scanning times are with no music data in > the files. I would think it shouldn't make a difference, but maybe > there is. > I can't compare it exactly because normally the files are on a NAS but in this case it's on a local disk. Also the SBS is running in a virtual machine so it can be affected by other stuff running on the physical machine.
But I did a quick check and generated a random library in with the same size as my main FLAC library and also one with the same metadata with the flactruncate.pl script linked in a previous post in this thread and the result with all files on the NAS was as follows (all libraries contains 3495 tracks) - Real library (91 GB): full rescan 92 seconds - flactruncate.pl library (31 MB): full rescan 32 seconds - Random generated flac library (15 MB): full rescan 25 seconds Just for reference I also tried to put the random generated flac library on the local drive and then it takes 18 seconds to do a full rescan. So based on this, I'd say that it can't be used to realistically test the performance of the scanner as it's mostly restricted by I/O and larger files result in more I/O. JJZolx;640023 Wrote: > > The only reason I can see for having a very large test library like > this would be performance testing. > Yes, that's the plan I have, I've had trouble testing performance of my plugins previously since my own library is fairly small compared to the library sizes some other users have. Based on the above analysis I think it's mostly usable for performance testing of browsing functionality. However, it could possibly be used to find database performance issues with scanner in larger libraries, but not not to measure the scanner performance as that's heavily affected by I/O which will be very different with these small FLAC files. JJZolx;640023 Wrote: > > How do you pull down the tagging data? Just by requesting data for > random albums? > >From a local discogs dump, they have XML dump files you can download from here: http://www.discogs.com/data/ It won't work to call their web service, that would take too much time and it would violate their web service license restrictions which doesn't allow you to make more than a certain number of calls per minute. I've based it on the "releases" dump and just picks albums from the beginning until I have as many as I like, skipping albums with very few tracks to make it a bit more realistic. -- erland Erland Isaksson ('My homepage' (http://erland.isaksson.info)) (Developer of 'many plugins/applets' (http://wiki.slimdevices.com/index.php/User:Erland). If my answer helped you and you like to encourage future presence on this forum and/or third party plugin/applet development, 'donations are always appreciated' (http://erland.isaksson.info/donate)) ------------------------------------------------------------------------ erland's Profile: http://forums.slimdevices.com/member.php?userid=3124 View this thread: http://forums.slimdevices.com/showthread.php?t=88688 _______________________________________________ beta mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/beta
