On Dienstag 16 Juni 2009 Jon Duggan wrote: > The pop3 box is a dedicated quad core with 4gb of ram.
And how much memory is used during peak hours? Just curious. Each dbmail-pop3 daemon here is shown as having an RSS footprint of 1-2MB, and a VSZ of 5-10MB. So with 300 users you'd have about 13MB per user available, which should be plenty. 600 users would thus mean ~6MB/user, I guess that would be the hard limit memory wise. What's your average CPU usage during peaks? I guess the pop3 box is not heavy loaded, but what about the db? > We push at peak maybe 10mbit/s so no where near the 30mb/s you quote > but bandwidth is not an issue (it's as good as unlimited). I forgot that with pop3 users usually remove mail from the server directly after receiving (we have lots of IMAP users). And with that many users, your connect rate may be high, but actual transfer rates not. Do you know about how many % of users choose to "leave mail on server for X days"? When we had flat-file storage with pop3d, that setting killed the server, as he had to read through the full file to see if there are new messages. You need only some users with a 100MB mailbox connecting every minute, and your server cries for help. But with dbmail, that is no issue anymore. :-) mfg zmi -- // Michael Monnerie, Ing.BSc ----- http://it-management.at // Tel: 0660 / 415 65 31 .network.your.ideas. // PGP Key: "curl -s http://zmi.at/zmi.asc | gpg --import" // Fingerprint: AC19 F9D5 36ED CD8A EF38 500E CE14 91F7 1C12 09B4 // Keyserver: wwwkeys.eu.pgp.net Key-ID: 1C1209B4 _______________________________________________ DBmail mailing list [email protected] http://mailman.fastxs.nl/cgi-bin/mailman/listinfo/dbmail
