cache size no bigger than 60% of available space

Hi!,
I have been running Squid for about a month on a dedicated machine
with 10Gbyte spread across 5 different filesystems. It handles an avarage
of 100 thousands requests per day but the cache size doesn't grow over, say,
60% of the available space (the cache_swap is set to 10000,
the cache_swap_low to 90% and the cache_swap_high to 95%). It seems as though
the cleaned objects are more than newer ones...
any clue ?

Nico.

-- 
Nico Tranquilli
CINECA - Inter University Computing Centre
Networks and Distributed Systems
phone: +39 (51) 6171519
email: nico@cineca.it