limit issue, i think it's a bug

[websun]

I have:

        limit_req_zone  $binary_remote_addr  zone=one:10m   rate=5r/s;
        limit_req   zone=one  burst=5;

in http zone.

whatever changes I make ot that directive even if I set 100/s won't serve more than 2 requests per second.

maybe Im doing it wrong?

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,25729,25729#msg-25729