Performance Monitoring?

[Jure Pe_ar]

On Fri, 4 Feb 2005 12:20:32 -0500 (EST)
Bill Earle <bill at buffalo.edu> wrote:


> - things we would like to monitor:
> 	connect to imap port to banner response time

what exactly do you want to measure here? if it's machine responsiveness,
use standard w/free/vmstat/iostat info.

> 	imap login time

that depends mostly on where your accounts are stored. in my example, mysql;
so i monitor that.

> 	mailbox selection time

this is i/o problem. use iostat for that.

> 	imap process time (maybe create a new folder, move
> 		a few messages, delete them and expung)

same. iostat.

> - We would also prefer graphing / trending, like a MRTG add-on.

mrtg is a bit too much router oriented to plot everything you want nicely
... rrd is a better solution.
as to how to do it ... there are many many scripts floating around for the
general things like cpu load, bandwith and so on, but what we have here is a
higly specific stuff and so the best way is to roll your own scripts.


-- 

Jure Pečar
http://jure.pecar.org/

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