[squid-users] async-io and threads

Hi

I've got a quite large network here and a busy squid proxy server
(~1500 boxes... filled until top 6Mb/s internet link).
I've already tunned the number of filedescriptors and memory
(cache_mem) available to squid and I'm using LFUDA as removal
policy.
Looking around to improve squid's performance I'm testing diskd and
async-io storage systems. Trying async-io I've compiled squid with:

--enable-async-io=30
--enable-removal-policies="heap,lru"
--enable-storeio="aufs,coss,diskd,ufs"

and a snippet of my squid.conf (it's just for testing):

cache_dir aufs /cache1 100 64 256

So... When I start squid, It should spawn 30 threads, shouldn't it?
But it isn't spawnning... Is this the right behaviour or I am
messing thing up ?

thanks a lot in advance.

-- 
[]'s
Lucas Brasilino
brasilino@recife.pe.gov.br
http://www.recife.pe.gov.br
Emprel -	Empresa Municipal de Informatica (pt_BR)
		Municipal Computing Enterprise (en_US)
Recife - Pernambuco - Brasil
Fone: +55-81-32327078