Zitat von Mike Lohmann <[EMAIL PROTECTED]>: > Hi, > > I would like to know the performance of a cyrus imap/pop3 server. > > I've got 20000 users writing about 2 mails/day, whereby one mail has approx. > > 100KB. > > What will be, in your opinion, the estimated memory- and cpu usage per user, > > when 100 of them send their mails at the same time? > > (Is there a document which tells me what cyrus 'costs'?) > > Thanks. > > Mike >
If you use IMAP with a lot of users online at the same time (inside LAN) be sure to get a lot of RAM (> 1GB) and tune your OS for many open files. Be sure to chose a fast I/O system (SCSI / FC) and a filesystem capable of many small files (XFS or something similar). Split of the MTA to an other machine if the user send most of time to "extern" addresses. Regards Andreas
