I'm curious to know what kind of performance other people are seeing
with their SquirrelMail installation, and whether what I'm seeing is
normal.

I've got an 850 P3, 512 RAM and a pair of SCSI drives using Courier IMAP
and Squirrel Mail 1.2.10 all going over 128bit SSL.

Now, for 1 user (me) with a mailbox of 20 or so messages, some with
attachments, I can singlehandedly make the load average go from 0.07 to
1.25. Watching 'top's output, no single process ever uses more than 3%
CPU, and in total idle CPU is always above 90%.

So, the load average of 1.25 seems a bit odd. What I think is causing
this is a Courier IMAP instance being fired up for every page load.
Running 'netstat' shows a large number of:

tcp        0      0  ardvark.upnix.ne.imap  ardvark.upnix.ne.45883
TIME_WAIT

During this whole time however, page loads are immediate regardless of
load average.

So, knowing that lots of users have folders with over 1000 messages in
them (WAY more than me), I'm a little concerned about what this does to
my overall capacity.


Is this a "problem", or something that's to be expected with webmail
over SSL? Anyone else notice a large spike in their load average when
there's a couple of people clicking away in Squirrel mail?

Could this be "fixed" with a different IMAP server?

Anyone?

Thanks,
Chris


-- 
Chris Cameron
UpNIX Internet Administrator
ardvark.upnix.net
saddlebags.upnix.net
--
http://www.upnix.com



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