[Dirvish] dirvish-expire very slow

[Arjan Schrijver]

Hi list,
Is anyone experiencing this same problem?
We're backupping about 35 servers every night, which takes about 2 hours 
to complete.
The backup sizes vary from a few hundred MB's to a few GB's per server.
The speed of the backup itself is quite good, but after the backup we 
start dirvish-expire, which takes about 6 hours, and sometimes even up 
to 10 hours or more.
Is this normal? It seems to me that analyzing directory names and then 
deleting them shouldn't take this amount of time.
Can anyone explain this to me?

Thanks in advance.

Kind regards,
Arjan