[03:18:57] <logmsgbot> !log LocalisationUpdate ResourceLoader cache refresh completed at Sun Mar 16 03:18:53 UTC 2014 (duration 53m 29s)

53.5!?

[03:33:53] <Reedy> 40 minutes 2nd feb 2014
[03:34:30] <Reedy> 24 minutes 2nd january

All the l10n updates since I added the duration output:

#wikimedia-operations.03-07.log:21:55 <+logmsgbot> !log LocalisationUpdate ResourceLoader cache refresh completed at Sat Mar 8 02:55:55 UTC 2014 (duration 55m 54s)
#wikimedia-operations.03-09.log:22:57 <+logmsgbot> !log LocalisationUpdate ResourceLoader cache refresh completed at Mon Mar 10 02:57:32 UTC 2014 (duration 57m 31s)
#wikimedia-operations.03-10.log:22:57 <+logmsgbot> !log LocalisationUpdate ResourceLoader cache refresh completed at Tue Mar 11 02:57:11 UTC 2014 (duration 57m 10s)
#wikimedia-operations.03-11.log:22:43 <+logmsgbot> !log LocalisationUpdate ResourceLoader cache refresh completed at Wed Mar 12 02:42:59 UTC 2014 (duration 42m 58s)
#wikimedia-operations.03-12.log:23:23 <+logmsgbot> !log LocalisationUpdate ResourceLoader cache refresh completed at Thu Mar 13 03:23:13 UTC 2014 (duration 23m 12s)
#wikimedia-operations.03-13.log:23:20 <+logmsgbot> !log LocalisationUpdate ResourceLoader cache refresh completed at Fri Mar 14 03:20:12 UTC 2014 (duration 20m 11s)
#wikimedia-operations.03-15.log:23:18 <+logmsgbot> !log LocalisationUpdate ResourceLoader cache refresh completed at Sun Mar 16 03:18:53 UTC 2014 (duration 53m 29s)

This data *should* also be in graphite (that was also in my patch), but I have yet to find it...

The duration will vary depending on how many languages had changed l10n that day, by checking the modification timestamp of each language's .cdb file. Did that get broken by the various l10n deployment changes that other people have been doing?