> Are you building against GnuTLS? > There were some older versions of GnuTLS that caused really bad performance.
I'm not building against GnuTLS. Should I be? - Grant >>>>> Use standard system administration tools, like top, iostat, netstat, and >>>>> others, to analyze and profile your server. Once you are confident that >>>>> you >>>>> know exactly where the bottleneck is, only then you can plan what needs >>>>> to >>>>> be done. >>>> >>>> I do believe it's an IO performance problem coupled with way too many >>>> messages in my own account. If I don't log in myself, everyone else's >>>> performance seems to be fine. I'm upgrading servers soon to fix the >>>> IO problem but I was hoping to learn about any tuning/optimization >>>> knobs for the meantime. >>> >>> There are none. The only configurable settings are the ones for the maximum >>> number of concurrent logins. >> >> I'm experimenting with some settings and the preliminary results are >> quite positive. Are the following settings appropriate for up to 10 >> webmail users with the server and webmail client residing on the same >> machine? >> >> /etc/courier-imap/imapd >> MAXDAEMONS=10 >> MAXPERIP=10 >> >> I suspect the increased performance I'm seeing is due to disabling >> IMAP_EMPTYTRASH: >> >> # You might want to disable this setting in certain situations - it results >> # in a stat() of every file in each folder, at login and logout. >> >> I also tried increasing: >> >> /etc/courier/authlib/authdaemonrc >> daemons=10 >> >> But I don't see a change in the number of running >> /usr/lib/courier/courier-authlib/authdaemond processes. Should that >> setting control those processes? >> >> Also I'm using courier-imap-4.15-r1 since it's the latest one marked >> stable in Gentoo. Could upgrading to 4.16.2 include any significant >> performance benefits? ------------------------------------------------------------------------------ _______________________________________________ Courier-imap mailing list [email protected] Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-imap
