[ejabberd] Another ejabberd data-point

Pedro Melo melo at simplicidade.org
Sun Jul 27 11:44:00 MSD 2008


Hi,

just for future reference:

--quote--
I'd like to supply some numbers as food for thought. Take them as a  
data point, and something to compare against. Last Monday, July 21,  
2008 (for historical reference) PINES (the Georgia state-wide  
resource sharing consortium running on the Evergreen ILS) saw just  
under 22 million API calls cross its XMPP servers. Each call causes  
at least two XMPP messages, one for the request and one for the  
response, and that is in the simplest case. Some responses generate  
multiple messages, both status and data. Several APIs require the  
creation of a stateful session, generating at least three more XMPP  
messages. It's not unreasonable to estimate the number of XMPP  
messages at greater than 50 million. The CPU power required of the  
ejabberd server to pass these messages around is approximately 2  
fully utilized Xeon cores at 2.4GHz during peak hours.
--quote--

Source: http://hublog.hubmed.org/archives/001695.html (in the  
comments, by Mike Rylander)

Best regards,
-- 
Pedro Melo
Blog: http://www.simplicidade.org/notes/
XMPP ID: melo at simplicidade.org
Use XMPP!




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