I have applied this patch to the 1.6.2 and the load-average is now OK.
Just wondering, how much above (or below) the qmail-pop3d ?
And what about the 700MB unused free ram, cant you turn this
into nfs/disk-caching buffers somehow ?
Now, i don't understand why this is not the default method.
To be RFC Compliant is ok, to be efficient is better i think.
The former is a requirement, at least if you use samware ;)
Because having a problem with 100 connection with a dual processor server and
two network filer F760 as storage system is not acceptable.
The problem has been already mentioned on this list, pop3d
cant be used for anything with more than a few mailboxes
and Sam recommends using imapd in such cases.
Maybe this makes it into a configure-time option some day,
but non-rfc-conformant hacks usually take some time.
Do you know if there is the same problem with imap server ?
No. imapd uses stat() to get the filesize.
You will have other problems because most clients open up too
many concurrent connections, stay connected for some time and
will never delete old mail. Set maxperip to 6..8, maxdaemons
to >1024 and watch your network-buffers.