[Mailman-Users] Slow Performance on semi-large lists

[Chuq Von Rospach]

At 3:16 AM +0000 12/14/00, Matthew Dickinson wrote:
>is 10 the ideal value? or just a guess-timate? would a value of 5 make it
>even more efficient?

I think from a practical standpoint there's little difference between 
5 and 10. The chances of a slow user delaying users goes down, as 
does the number of users they affect -- but even if they're the first 
delivery attempt, the delay is still fairly minor, and you're adding 
to the MTA load in number of queues to deal with, which can cause 
tghrashing in your mail queues. It also decreases the ability to 
leverage a connection to the remote site, adding to your network 
volume IF you have lots of users to the same site (like AOL). If 
they're spread around a lot, that doesn't matter.

So the asnwer is "it depends". The optimal number is 1, but maximizes 
the imapct on the MTA, and unless you're customizing email per-user 
or VERPing, 1 is overkill.

-- 
Chuq Von Rospach - Plaidworks Consulting (mailto:chuqui at plaidworks.com)
Apple Mail List Gnome (mailto:chuq at apple.com)

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