[Mailman-Users] Soooooo sloooooow

Brad Knowles brad.knowles at skynet.be
Wed Aug 4 17:05:02 CEST 2004

At 10:30 PM -0500 2004-08-03, John Price wrote:

>  I'm running Mailman 2.1.4 on a 1GHz machine with 1.5G RAM.

	CPU speed has relatively little to do with performance issues on 
things related to Internet mail and mailing lists.  If you're short 
of RAM, that can be a real problem, but 1.5GB is probably enough to 
avoid the worst of the sorts of problems typically caused by memory 

>  I have a list that has about 60K members, and all
>  interaction with mailman is very slow when there is no
>  load on the machine, and SUPER slow when there is load.

	I recommend going to the Mailman FAQ Wizard at 
<http://www.python.org/cgi-bin/faqw-mm.py>, search for "performance", 
and read the various entries which are returned.  You may want to pay 
special attention to the entries at 
and consider the performance advantages of upgrading to version 2.1.5.

>  Does the program read in the entire mailing list everytime
>  it output a web page?

	It loads the Python pickles, yes.

>  Even with 60K users, why does it take so long?

	It's hard to say.  There's a wide variety of reasons why this 
could be happening, but most of the known issues are detailed in the 
FAQ and can be found by searching for the word "performance".

Brad Knowles, <brad.knowles at skynet.be>

"Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety."

     -- Benjamin Franklin (1706-1790), reply of the Pennsylvania
     Assembly to the Governor, November 11, 1755

   SAGE member since 1995.  See <http://www.sage.org/> for more info.

More information about the Mailman-Users mailing list