On Sat, Mar 29, 2008 at 2:09 AM, Jeff Larsen <jlar310@xxxxxxxxx> wrote: > I run cyrus imap in a virtual machine at home using fetchmail to pull > my ISP mail into a local imap store. For the most part it works great. > But with messages that have digital photo attachments it takes a > seemingly inappropriate long time for Thunderbird to download the > message (over local wired 100Mb network) and display the pictures. > > I've got plenty of memory overhead on both the virtual machine and the > VMware Server host. While in the process of downloading an image > email, the CPU usage goes higher than I would expect (20%) for a > simple file transfer. It takes 10-15 seconds to load a message with 3 > images totaling 5MB over non-encrypted port 143. It's 2 or 3 times > that long if I use imaps on 993. > > The VMware host is a 2GHz Pentium, with very little load from other processes. First I thing about a probleme with Vmware or hardware (disk access or network) Find the file that match your email in your imap spool, and try to download/upload it using scp on your workstation, and measure the time. Also try using imap client on your server, and other imap client .... Regards > > What's gong on here and can I do anything to fix it? Why so much CPU > to transfer a 5MB message?. Doesn't Thunderbird handle the mime > decoding? > > We use a similar setup at work (cyrus on virtual machine) for 50 users > and I don't have the same problem there. Granted, the hardware is > faster, but it's also carrying a much heavier load for other services. > > -- > Jeff > ---- > Cyrus Home Page: http://cyrusimap.web.cmu.edu/ > Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki > List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html > -- Alain Spineux aspineux gmail com May the sources be with you ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
