[Dovecot] Log format top=0/0 elements meaning?

1 Apr 2006


      Hello.
Typical log text - top=0/0, retr=0/ del=0/0, size=0
I can figure out what means retr=0/ del=0/0, size=0,  but what about
top=0/0? It's static data, haven't seen any others numbers, than zeros
there?
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Sysadmin