I was tested cyrus IMAP version 2.1.2 on SUN 420R .
The 420R system is configured as following:
        - 4 450MHz SPARC CPU
        - 2G RAM
        - Fiber RAID channel adaptor
        - Solaris 2.7 (32bit)
        - UFS for mailboxes
        - CyrusIMAP changed to use skiplist for mailboxes.db
                (I added the skiplist to CyrusIMAP 2.1.2)
        
I made a benchmark program with Postfix SMTP client source which stores about 512byte 
messages to a random recipient. It changed to use LMTP instead of SMTP.

To conduct the benchmark, I created about 1000 mailboxes.

As a result, I found my CyrusIMAP configuration can handle about 50 mail writes/sec.
Anybody has another configuration for better performance ?
Thanks.




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