Dave Johnson writes: > Tried to find a search in the mailing list, sorry if this was posted > before, but the following look like an imaps (or outlook) bug: > > Running Courier 39.1 (compiled rpm build) > - Dual proc 1.4G, 4G mem, SCSI RAID > - RH 7.3 > > When copying Inbox (with Outlook XP) from local HD image of "Inbox" to > an imap folder it is terribly slow. For example, it took ~10 minutes to > copy 30M. It also drove the load on the server to 1 for most of the > duration. > Client was connecting using imaps. > > SSL/TLS should not put this much overhead on things.
Mail is uploaded to an IMAP server one message at a time. Although an IMAP client is allowed to send the next message without waiting for the server to acknowledge the previous one, most IMAP clients will wait for the server to acknowledge each message, before sending the next message. This explains why it takes ten minutes. I have noticed myself the piss-poor performance of Linux's VM when memory fills up with dirty buffers waiting to be flushed to disk. Under extreme memory pressure I've observed xclock freezing for as much as 30 seconds, before everything gets going again. -- Sam ------------------------------------------------------- This sf.net email is sponsored by: Jabber - The world's fastest growing real-time communications platform! Don't just IM. Build it in! http://www.jabber.com/osdn/xim _______________________________________________ courier-users mailing list [EMAIL PROTECTED] Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
