Apache maximum concurrent connections

Hi, i'm trying to build a data streaming web app using apache php as the server and AJAX front-end that holds connections open
(approximately 1-3 package of data/second for 24 hours)
In this case how many concurrent connections can the apache handle?
anyone ever tried?

thx

 

http://httpd.apache.org/docs/2.2/mod/mpm_common.html#maxclients

Also look at the MaxRequestsPerChild Directive

 

ok thx HSH
Gbu